// // Copyright (c) 2009-2012 Krueger Systems, Inc. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // #nullable enable #if WINDOWS_PHONE && !USE_WP8_NATIVE_SQLITE #define USE_CSHARP_SQLITE #endif using System; using System.Diagnostics; using System.Runtime.InteropServices; using System.Collections.Generic; using System.Reflection; using System.Linq; using System.Linq.Expressions; using System.Threading; #if USE_CSHARP_SQLITE using Sqlite3 = Community.CsharpSqlite.Sqlite3; using Sqlite3DatabaseHandle = Community.CsharpSqlite.Sqlite3.sqlite3; using Sqlite3Statement = Community.CsharpSqlite.Sqlite3.Vdbe; #elif USE_WP8_NATIVE_SQLITE using Sqlite3 = Sqlite.Sqlite3; using Sqlite3DatabaseHandle = Sqlite.Database; using Sqlite3Statement = Sqlite.Statement; #else using Sqlite3DatabaseHandle = System.IntPtr; using Sqlite3Statement = System.IntPtr; #endif /// /// SQLite4Unity3d´Â Unity ȯ°æ¿¡¼­ SQLite¸¦ ½±°Ô »ç¿ëÇÒ ¼ö ÀÖ°Ô ÇØÁÖ´Â ¶óÀ̺귯¸®ÀÔ´Ï´Ù. /// ÀÌ Å¬·¡½º´Â SQLite µ¥ÀÌÅͺ£À̽º¿¡ ´ëÇÑ ¿¬°áÀ» °ü¸®ÇÕ´Ï´Ù. /// namespace SQLite4Unity3d { /// /// SQLite ÀÛ¾÷ Áß ¹ß»ýÇÏ´Â ¿¹¿Ü¸¦ ó¸®Çϱâ À§ÇÑ Å¬·¡½ºÀÔ´Ï´Ù. /// public class SQLiteException : Exception { public SQLite3.Result Result { get; private set; } protected SQLiteException(SQLite3.Result r, string message) : base(message) { Result = r; } public static SQLiteException New(SQLite3.Result r, string message) { return new SQLiteException(r, message); } } /// /// NOT NULL Á¦¾à Á¶°Ç À§¹Ý ½Ã ¹ß»ýÇÏ´Â ¿¹¿Ü¸¦ ó¸®Çϱâ À§ÇÑ Å¬·¡½ºÀÔ´Ï´Ù. /// public class NotNullConstraintViolationException : SQLiteException { public IEnumerable Columns { get; protected set; } protected NotNullConstraintViolationException(SQLite3.Result r, string message) : this(r, message, null, null) { } protected NotNullConstraintViolationException(SQLite3.Result r, string message, TableMapping mapping, object obj) : base(r, message) { if (mapping != null && obj != null) { this.Columns = from c in mapping.Columns where c.IsNullable == false && c.GetValue(obj) == null select c; } } public static new NotNullConstraintViolationException New(SQLite3.Result r, string message) { return new NotNullConstraintViolationException(r, message); } public static NotNullConstraintViolationException New(SQLite3.Result r, string message, TableMapping mapping, object obj) { return new NotNullConstraintViolationException(r, message, mapping, obj); } public static NotNullConstraintViolationException New(SQLiteException exception, TableMapping mapping, object obj) { return new NotNullConstraintViolationException(exception.Result, exception.Message, mapping, obj); } } /// /// SQLite µ¥ÀÌÅͺ£À̽º ÆÄÀÏÀ» ¿­±â À§ÇÑ ¿É¼ÇµéÀ» Á¤ÀÇÇÕ´Ï´Ù. /// [Flags] public enum SQLiteOpenFlags { ReadOnly = 1, ReadWrite = 2, Create = 4, NoMutex = 0x8000, FullMutex = 0x10000, SharedCache = 0x20000, PrivateCache = 0x40000, ProtectionComplete = 0x00100000, ProtectionCompleteUnlessOpen = 0x00200000, ProtectionCompleteUntilFirstUserAuthentication = 0x00300000, ProtectionNone = 0x00400000 } /// /// Å×ÀÌºí »ý¼º ½Ã »ç¿ëµÇ´Â Ç÷¡±×ÀÔ´Ï´Ù. /// [Flags] public enum CreateFlags { None = 0, ImplicitPK = 1, // create a primary key for field called 'Id' (Orm.ImplicitPkName) ImplicitIndex = 2, // create an index for fields ending in 'Id' (Orm.ImplicitIndexSuffix) AllImplicit = 3, // do both above AutoIncPK = 4 // force PK field to be auto inc } /// /// SQLite µ¥ÀÌÅͺ£À̽º¿¡ ´ëÇÑ ¿­¸° ¿¬°áÀ» ³ªÅ¸³À´Ï´Ù. /// public partial class SQLiteConnection : IDisposable { private bool _open; private TimeSpan _busyTimeout; private Dictionary _mappings = null; private Dictionary _tables = null; private System.Diagnostics.Stopwatch _sw; private TimeSpan _elapsed = default(TimeSpan); private int _transactionDepth = 0; private Random _rand = new Random(); public Sqlite3DatabaseHandle Handle { get; private set; } internal static readonly Sqlite3DatabaseHandle NullHandle = default(Sqlite3DatabaseHandle); public string DatabasePath { get; private set; } // µ¿±âÈ­ °´Ã¼ÀÇ »çÀüÀÔ´Ï´Ù. // // µ¥ÀÌÅͺ£À̽º ÆÄÀÏ ¼Õ»óÀ» ¹æÁöÇϱâ À§ÇØ µ¥ÀÌÅͺ£À̽º ÆÄÀÏ¿¡ *µ¿±âÀûÀ¸·Î* Á¢±ÙÇØ¾ß ÇÕ´Ï´Ù. // À̸¦ À§ÇØ °¢ µ¥ÀÌÅͺ£À̽º ÆÄÀÏ¿¡ ´ëÇÑ µ¿±âÈ­ °´Ã¼¸¦ »ý¼ºÇÏ°í ¸ðµç ¿¬°á °£¿¡ °øÀ¯Çϱâ À§ÇØ // Á¤Àû »çÀü¿¡ ÀúÀåÇÕ´Ï´Ù. // »çÀüÀÇ Å°´Â µ¥ÀÌÅͺ£À̽º ÆÄÀÏ °æ·ÎÀ̰í, °ªÀº lock() ¹®¿¡¼­ »ç¿ëÇÒ °´Ã¼ÀÔ´Ï´Ù. // // »ç¿ë »ç·Ê: // - µ¥ÀÌÅͺ£À̽º ÆÄÀÏ Àá±ÝÀº ¾Ï½ÃÀûÀ¸·Î ÀÚµ¿À¸·Î ÀÌ·ç¾îÁý´Ï´Ù. // - ±³Âø »óŸ¦ ¹æÁöÇϱâ À§ÇØ ÀÀ¿ë ÇÁ·Î±×·¥Àº ´ÙÀ½°ú °°Àº ¹æ¹ýÀ¸·Î ¸í½ÃÀûÀ¸·Î µ¥ÀÌÅͺ£À̽º ÆÄÀÏÀ» Àá±Û ¼ö ÀÖ½À´Ï´Ù: // - RunInTransaction(Action)Àº Æ®·£Àè¼Ç Áß¿¡ µ¥ÀÌÅͺ£À̽º¸¦ Àá±Þ´Ï´Ù(»ðÀÔ/¾÷µ¥ÀÌÆ®¿ë). // - RunInDatabaseLock(Action)Àº ºñ½ÁÇÏ°Ô µ¥ÀÌÅͺ£À̽º¸¦ Àá±×Áö¸¸ Æ®·£Àè¼ÇÀº ¾ø½À´Ï´Ù(Äõ¸®¿ë). private static Dictionary syncObjects = new Dictionary(); #region debug tracing public bool Trace { get; set; } public bool TimeExecution { get; set; } public delegate void TraceHandler(string message); public event TraceHandler TraceEvent; internal void InvokeTrace(string message) { if (TraceEvent != null) { TraceEvent(message); } } public delegate void TimeExecutionHandler(TimeSpan executionTime, TimeSpan totalExecutionTime); public event TimeExecutionHandler TimeExecutionEvent; internal void InvokeTimeExecution(TimeSpan executionTime, TimeSpan totalExecutionTime) { if (TimeExecutionEvent != null) { TimeExecutionEvent(executionTime, totalExecutionTime); } } #endregion public bool StoreDateTimeAsTicks { get; private set; } /// /// »õ·Î¿î SQLiteConnectionÀ» »ý¼ºÇϰí ÁöÁ¤µÈ °æ·ÎÀÇ SQLite µ¥ÀÌÅͺ£À̽º¸¦ ¿±´Ï´Ù. /// /// /// µ¥ÀÌÅͺ£À̽º ÆÄÀÏÀÇ °æ·Î¸¦ ÁöÁ¤ÇÕ´Ï´Ù. /// /// /// DateTime ¼Ó¼ºÀ» ƽ(true) ¶Ç´Â ¹®ÀÚ¿­(false)·Î ÀúÀåÇÒÁö ÁöÁ¤ÇÕ´Ï´Ù. /// »õ ÇÁ·ÎÁ§Æ®¿¡¼­´Â ¹Ýµå½Ã true·Î ¼³Á¤ÇÏ´Â °ÍÀÌ ÁÁ½À´Ï´Ù. false´Â ÀÌÀü ¹öÀü°úÀÇ È£È¯¼ºÀ» À§ÇÑ °ÍÀÔ´Ï´Ù. /// true·Î ¼³Á¤ÇÏ¸é ¼º´ÉÀÌ Å©°Ô Çâ»óµÇ¸ç ´ÜÁ¡ÀÌ ¾ø½À´Ï´Ù. /// /// /// /// // ±âº» µ¥ÀÌÅͺ£À̽º ¿¬°á »ý¼º /// var db = new SQLiteConnection(Application.persistentDataPath + "/myDatabase.db", true); /// /// // Å×ÀÌºí »ý¼º /// db.CreateTable(); /// /// public SQLiteConnection(string databasePath, bool storeDateTimeAsTicks = false) : this(databasePath, SQLiteOpenFlags.ReadWrite | SQLiteOpenFlags.Create, storeDateTimeAsTicks) { } /// /// »õ·Î¿î SQLiteConnectionÀ» »ý¼ºÇϰí ÁöÁ¤µÈ °æ·ÎÀÇ SQLite µ¥ÀÌÅͺ£À̽º¸¦ ¿±´Ï´Ù. /// /// /// µ¥ÀÌÅͺ£À̽º ÆÄÀÏÀÇ °æ·Î¸¦ ÁöÁ¤ÇÕ´Ï´Ù. /// /// /// µ¥ÀÌÅͺ£À̽º¸¦ ¿©´Â ¹æ¹ýÀ» ÁöÁ¤ÇÏ´Â Ç÷¡±×ÀÔ´Ï´Ù. /// /// /// DateTime ¼Ó¼ºÀ» ƽ(true) ¶Ç´Â ¹®ÀÚ¿­(false)·Î ÀúÀåÇÒÁö ÁöÁ¤ÇÕ´Ï´Ù. /// »õ ÇÁ·ÎÁ§Æ®¿¡¼­´Â ¹Ýµå½Ã true·Î ¼³Á¤ÇÏ´Â °ÍÀÌ ÁÁ½À´Ï´Ù. false´Â ÀÌÀü ¹öÀü°úÀÇ È£È¯¼ºÀ» À§ÇÑ °ÍÀÔ´Ï´Ù. /// true·Î ¼³Á¤ÇÏ¸é ¼º´ÉÀÌ Å©°Ô Çâ»óµÇ¸ç ´ÜÁ¡ÀÌ ¾ø½À´Ï´Ù. /// /// /// /// // Àбâ Àü¿ë ¸ðµå·Î µ¥ÀÌÅͺ£À̽º ¿­±â /// var dbReadOnly = new SQLiteConnection( /// Application.persistentDataPath + "/myDatabase.db", /// SQLiteOpenFlags.ReadOnly, /// true); /// /// public SQLiteConnection(string databasePath, SQLiteOpenFlags openFlags, bool storeDateTimeAsTicks = false) { if (string.IsNullOrEmpty(databasePath)) throw new ArgumentException("Must be specified", "databasePath"); DatabasePath = databasePath; mayCreateSyncObject(databasePath); #if NETFX_CORE SQLite3.SetDirectory(/*temp directory type*/2, Windows.Storage.ApplicationData.Current.TemporaryFolder.Path); #endif Sqlite3DatabaseHandle handle; #if SILVERLIGHT || USE_CSHARP_SQLITE var r = SQLite3.Open (databasePath, out handle, (int)openFlags, IntPtr.Zero); #else // open using the byte[] // in the case where the path may include Unicode // force open to using UTF-8 using sqlite3_open_v2 var databasePathAsBytes = GetNullTerminatedUtf8(DatabasePath); var r = SQLite3.Open(databasePathAsBytes, out handle, (int)openFlags, IntPtr.Zero); #endif Handle = handle; if (r != SQLite3.Result.OK) { throw SQLiteException.New(r, String.Format("Could not open database file: {0} ({1})", DatabasePath, r)); } _open = true; StoreDateTimeAsTicks = storeDateTimeAsTicks; BusyTimeout = TimeSpan.FromSeconds(0.1); } static SQLiteConnection() { if (_preserveDuringLinkMagic) { var ti = new ColumnInfo(); ti.Name = "magic"; } } /// /// ÁÖ¾îÁø µ¥ÀÌÅͺ£À̽º °æ·Î¿¡ ´ëÇÑ µ¿±âÈ­ °´Ã¼¸¦ »ý¼ºÇÕ´Ï´Ù(¾ÆÁ÷ Á¸ÀçÇÏÁö ¾Ê´Â °æ¿ì). /// /// µ¥ÀÌÅͺ£À̽º ÆÄÀÏ °æ·Î void mayCreateSyncObject(string databasePath) { if (!syncObjects.ContainsKey(databasePath)) { syncObjects[databasePath] = new object(); } } /// /// µ¥ÀÌÅͺ£À̽º ÆÄÀÏÀ» ¾÷µ¥ÀÌÆ®Çϱâ À§ÇÑ µ¿±âÈ­ °´Ã¼¸¦ °¡Á®¿É´Ï´Ù. /// /// µ¿±âÈ­ °´Ã¼. public object SyncObject { get { return syncObjects[DatabasePath]; } } /// /// È®Àå ±â´É ·Îµå¸¦ Ȱ¼ºÈ­ ¶Ç´Â ºñȰ¼ºÈ­ÇÕ´Ï´Ù. /// /// 1À̸é Ȱ¼ºÈ­, 0ÀÌ¸é ºñȰ¼ºÈ­ /// /// /// // SQLite È®Àå ±â´É Ȱ¼ºÈ­ /// db.EnableLoadExtension(1); /// /// public void EnableLoadExtension(int onoff) { SQLite3.Result r = SQLite3.EnableLoadExtension(Handle, onoff); if (r != SQLite3.Result.OK) { string msg = SQLite3.GetErrmsg(Handle); throw SQLiteException.New(r, msg); } } /// /// ¹®ÀÚ¿­À» UTF-8·Î ÀÎÄÚµùÇϰí NULL Á¾·á ¹ÙÀÌÆ®¸¦ Ãß°¡ÇÕ´Ï´Ù. /// /// ÀÎÄÚµùÇÒ ¹®ÀÚ¿­ /// NULL Á¾·áµÈ UTF-8 ¹ÙÀÌÆ® ¹è¿­ static byte[] GetNullTerminatedUtf8(string s) { var utf8Length = System.Text.Encoding.UTF8.GetByteCount(s); var bytes = new byte[utf8Length + 1]; utf8Length = System.Text.Encoding.UTF8.GetBytes(s, 0, s.Length, bytes, 0); return bytes; } /// /// MonoTouch ¸µÄ¿°¡ º¼ ¼ö ÀÖÁö¸¸ ½ÇÇàÇÏÁö ¾Ê±â¸¦ ¹Ù¶ó´Â Äڵ带 ³ª¿­ÇÏ´Â µ¥ »ç¿ëµË´Ï´Ù. /// #pragma warning disable 649 static bool _preserveDuringLinkMagic; #pragma warning restore 649 /// /// Å×À̺íÀÌ Àá°åÀ» ¶§ ÁöÁ¤µÈ ½Ã°£ µ¿¾È ´ë±âÇÏ´Â ºñÁö Çڵ鷯¸¦ ¼³Á¤ÇÕ´Ï´Ù. /// Çڵ鷯´Â ÀÇ ÃÑ ½Ã°£ÀÌ ´©ÀûµÉ ¶§±îÁö ¿©·¯ ¹ø ´ë±âÇÕ´Ï´Ù. /// /// /// /// // ´ë±â ½Ã°£ ¼³Á¤ /// db.BusyTimeout = TimeSpan.FromSeconds(5); /// /// public TimeSpan BusyTimeout { get { return _busyTimeout; } set { _busyTimeout = value; if (Handle != NullHandle) { SQLite3.BusyTimeout(Handle, (int)_busyTimeout.TotalMilliseconds); } } } /// /// ¿¬°áÀÌ ÇöÀç ÀÌÇØÇϴ ŸÀÔ¿¡¼­ Å×À̺í·ÎÀÇ ¸ÅÇÎÀ» ¹ÝȯÇÕ´Ï´Ù. /// public IEnumerable TableMappings { get { return _tables != null ? _tables.Values : Enumerable.Empty(); } } /// /// ÁÖ¾îÁø ŸÀÔ¿¡ ´ëÇØ ÀÚµ¿ »ý¼ºµÈ ¸ÅÇÎÀ» °Ë»öÇÕ´Ï´Ù. /// /// /// µ¥ÀÌÅͺ£À̽º¿¡ ´ëÇÑ ¸ÅÇÎÀÌ ¹ÝȯµÇ´Â ŸÀÔÀÔ´Ï´Ù. /// /// /// ¸í¸í ±ÔÄ¢¿¡ µû¶ó ¾Ï½ÃÀû PK¿Í À妽º¸¦ Çã¿ëÇÏ´Â ¼±ÅÃÀû Ç÷¡±× /// /// /// ¸ÅÇÎÀº µ¥ÀÌÅͺ£À̽º ¿­ÀÇ ½ºÅ°¸¶¸¦ ³ªÅ¸³»¸ç °´Ã¼ÀÇ ¼Ó¼ºÀ» ¼³Á¤Çϰí /// °¡Á®¿À´Â ¸Þ¼­µå¸¦ Æ÷ÇÔÇÕ´Ï´Ù. /// /// /// /// // Person Ŭ·¡½º¿¡ ´ëÇÑ ¸ÅÇÎ ¾ò±â /// var mapping = db.GetMapping(typeof(Person)); /// /// // ¸ÅÇÎÀÇ Å×À̺í À̸§ È®ÀÎ /// Console.WriteLine("Å×À̺í À̸§: " + mapping.TableName); /// /// public TableMapping GetMapping(Type type, CreateFlags createFlags = CreateFlags.None) { if (_mappings == null) { _mappings = new Dictionary(); } TableMapping map; if (!_mappings.TryGetValue(type.FullName, out map)) { map = new TableMapping(type, createFlags); _mappings[type.FullName] = map; } return map; } /// /// ÁÖ¾îÁø ŸÀÔ¿¡ ´ëÇØ ÀÚµ¿ »ý¼ºµÈ ¸ÅÇÎÀ» °Ë»öÇÕ´Ï´Ù. /// /// /// ¸ÅÇÎÀº µ¥ÀÌÅͺ£À̽º ¿­ÀÇ ½ºÅ°¸¶¸¦ ³ªÅ¸³»¸ç °´Ã¼ÀÇ ¼Ó¼ºÀ» ¼³Á¤Çϰí /// °¡Á®¿À´Â ¸Þ¼­µå¸¦ Æ÷ÇÔÇÕ´Ï´Ù. /// /// /// /// // Á¦³×¸¯ ŸÀÔÀ¸·Î ¸ÅÇÎ ¾ò±â /// var mapping = db.GetMapping(); /// /// public TableMapping GetMapping() { return GetMapping(typeof(T)); } private struct IndexedColumn { public int Order; public string ColumnName; } private struct IndexInfo { public string IndexName; public string TableName; public bool Unique; public List Columns; } /// /// µ¥ÀÌÅͺ£À̽º¿¡¼­ "drop table" ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. ÀÌ ÀÛ¾÷Àº º¹±¸ÇÒ ¼ö ¾ø½À´Ï´Ù. /// /// /// /// // Person Å×ÀÌºí »èÁ¦ /// db.DropTable(); /// /// public int DropTable() { var map = GetMapping(typeof(T)); var query = string.Format("drop table if exists \"{0}\"", map.TableName); return Execute(query); } /// /// µ¥ÀÌÅͺ£À̽º¿¡¼­ "create table if not exists" ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ¶ÇÇÑ Å×ÀÌºí ¿­¿¡ ÁöÁ¤µÈ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// ÁöÁ¤µÈ ŸÀÔ¿¡¼­ ÀÚµ¿À¸·Î »ý¼ºµÈ ½ºÅ°¸¶¸¦ »ç¿ëÇÕ´Ï´Ù. /// ³ªÁß¿¡ GetMappingÀ» È£ÃâÇÏ¿© ÀÌ ½ºÅ°¸¶¿¡ ¾×¼¼½ºÇÒ ¼ö ÀÖ½À´Ï´Ù. /// /// /// µ¥ÀÌÅͺ£À̽º ½ºÅ°¸¶¿¡ Ãß°¡µÈ Ç׸ñÀÇ ¼ö¸¦ ¹ÝȯÇÕ´Ï´Ù. /// /// /// /// // Person Ŭ·¡½º¸¦ Ç¥ÇöÇÏ´Â Å×ÀÌºí »ý¼º /// db.CreateTable(); /// /// // ¾Ï½ÃÀû À妽º »ý¼º ¿É¼Ç »ç¿ë /// db.CreateTable(CreateFlags.ImplicitIndex); /// /// public int CreateTable(CreateFlags createFlags = CreateFlags.None) { return CreateTable(typeof(T), createFlags); } /// /// µ¥ÀÌÅͺ£À̽º¿¡¼­ "create table if not exists" ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ¶ÇÇÑ Å×ÀÌºí ¿­¿¡ ÁöÁ¤µÈ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// ÁöÁ¤µÈ ŸÀÔ¿¡¼­ ÀÚµ¿À¸·Î »ý¼ºµÈ ½ºÅ°¸¶¸¦ »ç¿ëÇÕ´Ï´Ù. /// ³ªÁß¿¡ GetMappingÀ» È£ÃâÇÏ¿© ÀÌ ½ºÅ°¸¶¿¡ ¾×¼¼½ºÇÒ ¼ö ÀÖ½À´Ï´Ù. /// /// µ¥ÀÌÅͺ£À̽º Å×À̺í·Î ¹Ý¿µÇÒ Å¸ÀÔÀÔ´Ï´Ù. /// ¸í¸í ±ÔÄ¢¿¡ µû¸¥ ¾Ï½ÃÀû PK ¹× À妽º¸¦ Çã¿ëÇÏ´Â ¼±ÅÃÀû Ç÷¡±×ÀÔ´Ï´Ù. /// /// µ¥ÀÌÅͺ£À̽º ½ºÅ°¸¶¿¡ Ãß°¡µÈ Ç׸ñÀÇ ¼ö¸¦ ¹ÝȯÇÕ´Ï´Ù. /// /// /// /// // Type °´Ã¼¸¦ »ç¿ëÇÏ¿© Å×ÀÌºí »ý¼º /// db.CreateTable(typeof(Person), CreateFlags.AutoIncPK); /// /// public int CreateTable(Type ty, CreateFlags createFlags = CreateFlags.None) { if (_tables == null) { _tables = new Dictionary(); } TableMapping map; if (!_tables.TryGetValue(ty.FullName, out map)) { map = GetMapping(ty, createFlags); _tables.Add(ty.FullName, map); } var query = "create table if not exists \"" + map.TableName + "\"(\n"; var decls = map.Columns.Select(p => Orm.SqlDecl(p, StoreDateTimeAsTicks)); var decl = string.Join(",\n", decls.ToArray()); query += decl; query += ")"; var count = Execute(query); if (count == 0) { //Possible bug: This always seems to return 0? // Table already exists, migrate it MigrateTable(map); } var indexes = new Dictionary(); foreach (var c in map.Columns) { foreach (var i in c.Indices) { var iname = i.Name ?? map.TableName + "_" + c.Name; IndexInfo iinfo; if (!indexes.TryGetValue(iname, out iinfo)) { iinfo = new IndexInfo { IndexName = iname, TableName = map.TableName, Unique = i.Unique, Columns = new List() }; indexes.Add(iname, iinfo); } if (i.Unique != iinfo.Unique) throw new Exception("All the columns in an index must have the same value for their Unique property"); iinfo.Columns.Add(new IndexedColumn { Order = i.Order, ColumnName = c.Name }); } } foreach (var indexName in indexes.Keys) { var index = indexes[indexName]; string[] columnNames = new string[index.Columns.Count]; if (index.Columns.Count == 1) { columnNames[0] = index.Columns[0].ColumnName; } else { index.Columns.Sort((lhs, rhs) => { return lhs.Order - rhs.Order; }); for (int i = 0, end = index.Columns.Count; i < end; ++i) { columnNames[i] = index.Columns[i].ColumnName; } } count += CreateIndex(indexName, index.TableName, columnNames, index.Unique); } return count; } /// /// ÁöÁ¤µÈ Å×À̺í°ú ¿­¿¡ ´ëÇÑ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// /// »ý¼ºÇÒ À妽ºÀÇ À̸§ /// µ¥ÀÌÅͺ£À̽º Å×À̺í À̸§ /// À妽ÌÇÒ ¿­ À̸§ ¹è¿­ /// À妽º°¡ °íÀ¯ÇØ¾ß ÇÏ´ÂÁö ¿©ºÎ /// /// /// // ¿©·¯ ¿­¿¡ ´ëÇÑ °íÀ¯ À妽º »ý¼º /// db.CreateIndex("personNameIndex", "Person", new[] { "FirstName", "LastName" }, true); /// /// public int CreateIndex(string indexName, string tableName, string[] columnNames, bool unique = false) { const string sqlFormat = "create {2} index if not exists \"{3}\" on \"{0}\"(\"{1}\")"; var sql = String.Format(sqlFormat, tableName, string.Join("\", \"", columnNames), unique ? "unique" : "", indexName); return Execute(sql); } /// /// ÁöÁ¤µÈ Å×À̺í°ú ¿­¿¡ ´ëÇÑ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// /// »ý¼ºÇÒ À妽ºÀÇ À̸§ /// µ¥ÀÌÅͺ£À̽º Å×À̺í À̸§ /// À妽ÌÇÒ ¿­ À̸§ /// À妽º°¡ °íÀ¯ÇØ¾ß ÇÏ´ÂÁö ¿©ºÎ /// /// /// // ´ÜÀÏ ¿­¿¡ ´ëÇÑ À妽º »ý¼º /// db.CreateIndex("emailIndex", "Person", "Email", true); /// /// public int CreateIndex(string indexName, string tableName, string columnName, bool unique = false) { return CreateIndex(indexName, tableName, new string[] { columnName }, unique); } /// /// ÁöÁ¤µÈ Å×À̺í°ú ¿­¿¡ ´ëÇÑ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// /// µ¥ÀÌÅͺ£À̽º Å×À̺í À̸§ /// À妽ÌÇÒ ¿­ À̸§ /// À妽º°¡ °íÀ¯ÇØ¾ß ÇÏ´ÂÁö ¿©ºÎ /// /// /// // Å×À̺í°ú ¿­ À̸§¿¡¼­ À妽º À̸§ ÀÚµ¿ »ý¼º /// db.CreateIndex("Person", "Age", false); /// // »ý¼ºµÈ À妽º À̸§Àº "Person_Age" /// /// public int CreateIndex(string tableName, string columnName, bool unique = false) { return CreateIndex(tableName + "_" + columnName, tableName, columnName, unique); } /// /// ÁöÁ¤µÈ Å×À̺í°ú ¿­¿¡ ´ëÇÑ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// /// µ¥ÀÌÅͺ£À̽º Å×À̺í À̸§ /// À妽ÌÇÒ ¿­ À̸§ ¹è¿­ /// À妽º°¡ °íÀ¯ÇØ¾ß ÇÏ´ÂÁö ¿©ºÎ /// /// /// // Å×À̺í°ú ¿©·¯ ¿­ À̸§¿¡¼­ À妽º À̸§ ÀÚµ¿ »ý¼º /// db.CreateIndex("Person", new[] { "FirstName", "LastName" }, true); /// // »ý¼ºµÈ À妽º À̸§Àº "Person_FirstName_LastName" /// /// public int CreateIndex(string tableName, string[] columnNames, bool unique = false) { return CreateIndex(tableName + "_" + string.Join("_", columnNames), tableName, columnNames, unique); } /// /// ÁöÁ¤µÈ °´Ã¼ ¼Ó¼º¿¡ ´ëÇÑ À妽º¸¦ »ý¼ºÇÕ´Ï´Ù. /// ¿¹½Ã: CreateIndex(c => c.Name); /// /// µ¥ÀÌÅͺ£À̽º Å×ÀÌºí¿¡ ¹Ý¿µÇÒ Å¸ÀÔ. /// À妽ÌÇÒ ¼Ó¼º /// À妽º°¡ °íÀ¯ÇØ¾ß ÇÏ´ÂÁö ¿©ºÎ /// /// /// // ¶÷´Ù ½ÄÀ» »ç¿ëÇÏ¿© ¼Ó¼º¿¡ ´ëÇÑ À妽º »ý¼º /// db.CreateIndex(p => p.Email, true); /// /// public void CreateIndex(Expression> property, bool unique = false) { MemberExpression mx; if (property.Body.NodeType == ExpressionType.Convert) { mx = ((UnaryExpression)property.Body).Operand as MemberExpression; } else { mx = (property.Body as MemberExpression); } var propertyInfo = mx.Member as PropertyInfo; if (propertyInfo == null) { throw new ArgumentException("The lambda expression 'property' should point to a valid Property"); } var propName = propertyInfo.Name; var map = GetMapping(); var colName = map.FindColumnWithPropertyName(propName).Name; CreateIndex(map.TableName, colName, unique); } /// /// µ¥ÀÌÅͺ£À̽º Å×ÀÌºí ¿­¿¡ ´ëÇÑ Á¤º¸¸¦ ÀúÀåÇϴ Ŭ·¡½ºÀÔ´Ï´Ù. /// public class ColumnInfo { // public int cid { get; set; } /// /// ¿­ÀÇ À̸§ÀÔ´Ï´Ù. /// [Column("name")] public string Name { get; set; } // [Column ("type")] // public string ColumnType { get; set; } /// /// NULL °ª Çã¿ë ¿©ºÎ¸¦ ³ªÅ¸³À´Ï´Ù. 0À̸é NULL Çã¿ë, 1À̸é NOT NULLÀÔ´Ï´Ù. /// public int notnull { get; set; } // public string dflt_value { get; set; } // public int pk { get; set; } public override string ToString() { return Name; } } /// /// ÁöÁ¤µÈ Å×À̺íÀÇ ¿­ Á¤º¸¸¦ °¡Á®¿É´Ï´Ù. /// /// Å×À̺íÀÇ À̸§ /// Å×À̺íÀÇ ¸ðµç ¿­¿¡ ´ëÇÑ Á¤º¸ ¸ñ·Ï /// /// /// // Person Å×À̺íÀÇ ¿­ Á¤º¸ °¡Á®¿À±â /// var columns = db.GetTableInfo("Person"); /// foreach (var column in columns) { /// Console.WriteLine("¿­ À̸§: " + column.Name); /// } /// /// public List GetTableInfo(string tableName) { var query = "pragma table_info(\"" + tableName + "\")"; return Query(query); } /// /// ±âÁ¸ Å×ÀÌºí ±¸Á¶¸¦ ÇöÀç ¸ÅÇÎµÈ °´Ã¼ ±¸Á¶¿Í ÀÏÄ¡Çϵµ·Ï ¾÷µ¥ÀÌÆ®ÇÕ´Ï´Ù. /// »õ·Î¿î ¿­ÀÌ ÀÖÀ¸¸é Å×ÀÌºí¿¡ Ãß°¡ÇÕ´Ï´Ù. /// /// Å×ÀÌºí ¸ÅÇÎ Á¤º¸ void MigrateTable(TableMapping map) { var existingCols = GetTableInfo(map.TableName); var toBeAdded = new List(); foreach (var p in map.Columns) { var found = false; foreach (var c in existingCols) { found = (string.Compare(p.Name, c.Name, StringComparison.OrdinalIgnoreCase) == 0); if (found) break; } if (!found) { toBeAdded.Add(p); } } foreach (var p in toBeAdded) { var addCol = "alter table \"" + map.TableName + "\" add column " + Orm.SqlDecl(p, StoreDateTimeAsTicks); Execute(addCol); } } /// /// »õ·Î¿î SQLiteCommand¸¦ »ý¼ºÇÕ´Ï´Ù. ¼­ºê Ŭ·¡½º Á¦°øÀ» À§ÇØ ÀçÁ¤ÀÇÇÒ ¼ö ÀÖ½À´Ï´Ù. /// /// protected virtual SQLiteCommand NewCommand() { return new SQLiteCommand(this); } /// /// Àμö°¡ ÀÖ´Â ¸í·É ÅØ½ºÆ®·Î »õ SQLiteCommand¸¦ »ý¼ºÇÕ´Ï´Ù. /// ¸í·É ÅØ½ºÆ®¿¡¼­ °¢ Àμö¿¡ ´ëÇØ '?' ¸¦ ¹èÄ¡ÇÕ´Ï´Ù. /// /// /// ¿ÏÀüÈ÷ À̽ºÄÉÀÌÇÁµÈ SQL. /// /// /// ¸í·É ÅØ½ºÆ®¿¡¼­ '?'ÀÇ ÃâÇöÀ» ´ëüÇÏ´Â Àμö. /// /// /// °´Ã¼ /// /// /// /// // ÆÄ¶ó¹ÌÅͰ¡ ÀÖ´Â ¸í·É »ý¼º /// var cmd = db.CreateCommand("SELECT * FROM Person WHERE Id = ?", 1); /// var person = cmd.ExecuteQuery().FirstOrDefault(); /// /// public SQLiteCommand CreateCommand(string cmdText, params object[] ps) { if (!_open) throw SQLiteException.New(SQLite3.Result.Error, "Cannot create commands from unopened database"); var cmd = NewCommand(); cmd.CommandText = cmdText; foreach (var o in ps) { cmd.Bind(o); } return cmd; } /// /// Àμö°¡ ÀÖ´Â ¸í·É ÅØ½ºÆ®(SQL)·Î SQLiteCommand¸¦ »ý¼ºÇÏ°í ½ÇÇàÇÕ´Ï´Ù. /// ¸í·É ÅØ½ºÆ®¿¡¼­ °¢ Àμö¿¡ ´ëÇØ '?'¸¦ ¹èÄ¡ÇÑ ´ÙÀ½ ÇØ´ç ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ÇàÀÌ ¹ÝȯµÉ °ÍÀ¸·Î ¿¹»óÇÏÁö ¾ÊÀ» ¶§ Query ´ë½Å ÀÌ ¸Þ¼­µå¸¦ »ç¿ëÇϼ¼¿ä. /// ÀÌ·¯ÇÑ °æ¿ì¿¡´Â INSERT, UPDATE ¹× DELETE°¡ Æ÷ÇԵ˴ϴÙ. /// ¿¬°áÀÇ Trace ¶Ç´Â TimeExecution ¼Ó¼ºÀ» ¼³Á¤ÇÏ¿© ½ÇÇàÀ» ÇÁ·ÎÆÄÀϸµÇÒ ¼ö ÀÖ½À´Ï´Ù. /// /// /// ¿ÏÀüÈ÷ À̽ºÄÉÀÌÇÁµÈ SQL. /// /// /// Äõ¸®¿¡¼­ '?'ÀÇ ÃâÇöÀ» ´ëüÇÏ´Â Àμö. /// /// /// ÀÌ ½ÇÇàÀÇ °á°ú·Î µ¥ÀÌÅͺ£À̽º¿¡¼­ ¼öÁ¤µÈ Çà ¼ö. /// /// /// /// // SQL Äõ¸® Á÷Á¢ ½ÇÇà /// int rowsAffected = db.Start("UPDATE Person SET Name = ? WHERE Id = ?", "È«±æµ¿", 1); /// Console.WriteLine($"¾÷µ¥ÀÌÆ®µÈ Çà ¼ö: {rowsAffected}"); /// /// public int Execute(string query, params object[] args) { var cmd = CreateCommand(query, args); if (TimeExecution) { if (_sw == null) { _sw = new Stopwatch(); } _sw.Reset(); _sw.Start(); } var r = cmd.ExecuteNonQuery(); if (TimeExecution) { _sw.Stop(); _elapsed += _sw.Elapsed; this.InvokeTimeExecution(_sw.Elapsed, _elapsed); } return r; } /// /// SQL Äõ¸®¸¦ ½ÇÇàÇÏ°í ½ºÄ®¶ó °á°ú¸¦ ¹ÝȯÇÕ´Ï´Ù. /// /// ¹ÝȯµÇ´Â ½ºÄ®¶ó °á°úÀÇ Å¸ÀÔ /// ½ÇÇàÇÒ SQL Äõ¸® /// Äõ¸® ÆÄ¶ó¹ÌÅÍ /// Äõ¸® °á°úÀÇ Ã¹ ¹øÂ° ¿­, ù ¹øÂ° Çà °ª /// /// /// // ½ºÄ®¶ó °ª °¡Á®¿À±â /// int count = db.ExecuteScalar("SELECT COUNT(*) FROM Person"); /// string name = db.ExecuteScalar("SELECT Name FROM Person WHERE Id = ?", 1); /// /// public T ExecuteScalar(string query, params object[] args) { var cmd = CreateCommand(query, args); if (TimeExecution) { if (_sw == null) { _sw = new Stopwatch(); } _sw.Reset(); _sw.Start(); } var r = cmd.ExecuteScalar(); if (TimeExecution) { _sw.Stop(); _elapsed += _sw.Elapsed; this.InvokeTimeExecution(_sw.Elapsed, _elapsed); } return r; } /// /// Àμö°¡ ÀÖ´Â ¸í·É ÅØ½ºÆ®(SQL)·Î SQLiteCommand¸¦ »ý¼ºÇÏ°í ½ÇÇàÇÕ´Ï´Ù. /// ¸í·É ÅØ½ºÆ®¿¡¼­ °¢ Àμö¿¡ ´ëÇØ '?'¸¦ ¹èÄ¡ÇÑ ´ÙÀ½ ÇØ´ç ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ÁöÁ¤µÈ ŸÀÔ¿¡ ´ëÇØ ÀÚµ¿À¸·Î »ý¼ºµÈ ¸ÅÇÎÀ» »ç¿ëÇÏ¿© °¢ °á°ú ÇàÀ» ¹ÝȯÇÕ´Ï´Ù. /// /// /// ¿ÏÀüÈ÷ À̽ºÄÉÀÌÇÁµÈ SQL. /// /// /// Äõ¸®¿¡¼­ '?'ÀÇ ÃâÇöÀ» ´ëüÇÏ´Â Àμö. /// /// /// Äõ¸®¿¡ ÀÇÇØ ¹ÝȯµÈ °¢ Çà¿¡ ´ëÇØ ÇϳªÀÇ °á°ú¸¦ °®´Â ¿­°Å °¡´É. /// /// /// /// // Á¶°Ç¿¡ ¸Â´Â ¸ðµç Person °´Ã¼ Á¶È¸ /// var adults = db.Query("SELECT * FROM Person WHERE Age >= ?", 18); /// foreach (var person in adults) { /// Console.WriteLine($"¼ºÀÎ: {person.Name}, {person.Age}¼¼"); /// } /// /// public List Query(string query, params object[] args) where T : new() { var cmd = CreateCommand(query, args); return cmd.ExecuteQuery(); } /// /// Àμö°¡ ÀÖ´Â ¸í·É ÅØ½ºÆ®(SQL)·Î SQLiteCommand¸¦ »ý¼ºÇÏ°í ½ÇÇàÇÕ´Ï´Ù. /// ¸í·É ÅØ½ºÆ®¿¡¼­ °¢ Àμö¿¡ ´ëÇØ '?'¸¦ ¹èÄ¡ÇÑ ´ÙÀ½ ÇØ´ç ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ÁöÁ¤µÈ ŸÀÔ¿¡ ´ëÇØ ÀÚµ¿À¸·Î »ý¼ºµÈ ¸ÅÇÎÀ» »ç¿ëÇÏ¿© °¢ °á°ú ÇàÀ» ¹ÝȯÇÕ´Ï´Ù. /// /// /// ¿ÏÀüÈ÷ À̽ºÄÉÀÌÇÁµÈ SQL. /// /// /// Äõ¸®¿¡¼­ '?'ÀÇ ÃâÇöÀ» ´ëüÇÏ´Â Àμö. /// /// /// Äõ¸®¿¡ ÀÇÇØ ¹ÝȯµÈ °¢ Çà¿¡ ´ëÇØ ÇϳªÀÇ °á°ú¸¦ °®´Â ¿­°Å °¡´É. /// ¿­°ÅÀÚ´Â MoveNext¸¦ È£ÃâÇÒ ¶§¸¶´Ù sqlite3_stepÀ» È£ÃâÇϹǷÎ, /// ¿­°ÅÀÚÀÇ ¼ö¸í µ¿¾È µ¥ÀÌÅͺ£À̽º ¿¬°áÀÌ ¿­·Á ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// /// // ´ë¿ë·® µ¥ÀÌÅ͸¦ Áö¿¬ ·ÎµùÀ¸·Î ó¸® /// var query = db.DeferredQuery("SELECT * FROM Person"); /// using (var enumerator = query.GetEnumerator()) { /// while (enumerator.MoveNext()) { /// var person = enumerator.Current; /// ProcessPerson(person); /// } /// } /// /// public IEnumerable DeferredQuery(string query, params object[] args) where T : new() { var cmd = CreateCommand(query, args); return cmd.ExecuteDeferredQuery(); } /// /// Àμö°¡ ÀÖ´Â ¸í·É ÅØ½ºÆ®(SQL)·Î SQLiteCommand¸¦ »ý¼ºÇÏ°í ½ÇÇàÇÕ´Ï´Ù. /// ¸í·É ÅØ½ºÆ®¿¡¼­ °¢ Àμö¿¡ ´ëÇØ '?'¸¦ ¹èÄ¡ÇÑ ´ÙÀ½ ÇØ´ç ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ÁöÁ¤µÈ ¸ÅÇÎÀ» »ç¿ëÇÏ¿© °¢ °á°ú ÇàÀ» ¹ÝȯÇÕ´Ï´Ù. /// ÀÌ ÇÔ¼ö´Â ³»¼º(introspection)À» ÅëÇØ µ¥ÀÌÅͺ£À̽º¸¦ Äõ¸®Çϱâ À§ÇØ /// ¶óÀ̺귯¸®¿¡¼­¸¸ »ç¿ëµË´Ï´Ù. ÀϹÝÀûÀ¸·Î »ç¿ëµÇÁö ¾Ê½À´Ï´Ù. /// /// /// °á°ú ÇàÀ» °´Ã¼·Î º¯È¯ÇÏ´Â µ¥ »ç¿ëÇÒ . /// /// /// ¿ÏÀüÈ÷ À̽ºÄÉÀÌÇÁµÈ SQL. /// /// /// Äõ¸®¿¡¼­ '?'ÀÇ ÃâÇöÀ» ´ëüÇÏ´Â Àμö. /// /// /// Äõ¸®¿¡ ÀÇÇØ ¹ÝȯµÈ °¢ Çà¿¡ ´ëÇØ ÇϳªÀÇ °á°ú¸¦ °®´Â ¿­°Å °¡´É. /// /// /// /// // ¸ÅÇÎ °´Ã¼¸¦ »ç¿ëÇØ Äõ¸® ½ÇÇà /// var map = db.GetMapping(typeof(Person)); /// var results = db.Query(map, "SELECT * FROM Person WHERE Id = ?", 1); /// if (results.Count > 0) { /// var person = results[0] as Person; /// } /// /// public List Query(TableMapping map, string query, params object[] args) { var cmd = CreateCommand(query, args); return cmd.ExecuteQuery(map); } /// /// Àμö°¡ ÀÖ´Â ¸í·É ÅØ½ºÆ®(SQL)·Î SQLiteCommand¸¦ »ý¼ºÇÏ°í ½ÇÇàÇÕ´Ï´Ù. /// ¸í·É ÅØ½ºÆ®¿¡¼­ °¢ Àμö¿¡ ´ëÇØ '?'¸¦ ¹èÄ¡ÇÑ ´ÙÀ½ ÇØ´ç ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// ÁöÁ¤µÈ ¸ÅÇÎÀ» »ç¿ëÇÏ¿© °¢ °á°ú ÇàÀ» ¹ÝȯÇÕ´Ï´Ù. /// ÀÌ ÇÔ¼ö´Â ³»¼º(introspection)À» ÅëÇØ µ¥ÀÌÅͺ£À̽º¸¦ Äõ¸®Çϱâ À§ÇØ /// ¶óÀ̺귯¸®¿¡¼­¸¸ »ç¿ëµË´Ï´Ù. ÀϹÝÀûÀ¸·Î »ç¿ëµÇÁö ¾Ê½À´Ï´Ù. /// /// /// °á°ú ÇàÀ» °´Ã¼·Î º¯È¯ÇÏ´Â µ¥ »ç¿ëÇÒ . /// /// /// ¿ÏÀüÈ÷ À̽ºÄÉÀÌÇÁµÈ SQL. /// /// /// Äõ¸®¿¡¼­ '?'ÀÇ ÃâÇöÀ» ´ëüÇÏ´Â Àμö. /// /// /// Äõ¸®¿¡ ÀÇÇØ ¹ÝȯµÈ °¢ Çà¿¡ ´ëÇØ ÇϳªÀÇ °á°ú¸¦ °®´Â ¿­°Å °¡´É. /// ¿­°ÅÀÚ´Â MoveNext¸¦ È£ÃâÇÒ ¶§¸¶´Ù sqlite3_stepÀ» È£ÃâÇϹǷÎ, /// ¿­°ÅÀÚÀÇ ¼ö¸í µ¿¾È µ¥ÀÌÅͺ£À̽º ¿¬°áÀÌ ¿­·Á ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// public IEnumerable DeferredQuery(TableMapping map, string query, params object[] args) { var cmd = CreateCommand(query, args); return cmd.ExecuteDeferredQuery(map); } /// /// ÁÖ¾îÁø ŸÀÔÀÌ ³ªÅ¸³»´Â Å×ÀÌºí¿¡ ´ëÇØ Äõ¸® °¡´ÉÇÑ ÀÎÅÍÆäÀ̽º¸¦ ¹ÝȯÇÕ´Ï´Ù. /// /// /// Where, OrderBy, Take Äõ¸®¸¦ ³×ÀÌÆ¼ºê SQL·Î º¯È¯ÇÒ ¼ö ÀÖ´Â Äõ¸® °¡´ÉÇÑ °´Ã¼. /// /// /// /// // LINQ¸¦ »ç¿ëÇÏ¿© µ¥ÀÌÅÍ Äõ¸®Çϱâ /// var query = db.Table() /// .Where(p => p.Age > 18) /// .OrderBy(p => p.Name); /// /// foreach(var adult in query) { /// Console.WriteLine($"¼ºÀÎ: {adult.Name}, {adult.Age}¼¼"); /// } /// /// public TableQuery Table() where T : new() { return new TableQuery(this); } /// /// ÁöÁ¤µÈ ±âº» ۸¦ °¡Áø °´Ã¼¸¦ Å×ÀÌºí¿¡¼­ °Ë»öÇÕ´Ï´Ù. /// ÀÌ ¸Þ¼­µå´Â ÁöÁ¤µÈ ŸÀÔ¿¡ (PrimaryKeyAttribute¸¦ »ç¿ëÇÏ¿©) /// ÁöÁ¤µÈ PrimaryKey°¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ±âº» Ű. /// /// /// ÁÖ¾îÁø ±âº» ۸¦ °¡Áø °´Ã¼. /// °´Ã¼¸¦ ãÀ» ¼ö ¾øÀ¸¸é not found ¿¹¿Ü¸¦ ¹ß»ý½Ãŵ´Ï´Ù. /// /// /// /// // ±âº» Ű·Î Person °´Ã¼ °¡Á®¿À±â /// try { /// var person = db.Get(1); /// Console.WriteLine($"À̸§: {person.Name}"); /// } catch (Exception) { /// Console.WriteLine("ÇØ´ç IDÀÇ PersonÀ» ãÀ» ¼ö ¾ø½À´Ï´Ù"); /// } /// /// public T Get(object pk) where T : new() { var map = GetMapping(typeof(T)); return Query(map.GetByPrimaryKeySql, pk).First(); } /// /// Å×ÀÌºí¿¡¼­ Á¶°Ç½Ä°ú ÀÏÄ¡Çϴ ù ¹øÂ° °´Ã¼¸¦ °Ë»öÇÕ´Ï´Ù. /// /// /// ¾î¶² °´Ã¼¸¦ ãÀ»Áö °áÁ¤ÇÏ´Â Á¶°Ç½Ä. /// /// /// ÁÖ¾îÁø Á¶°Ç½Ä°ú ÀÏÄ¡ÇÏ´Â °´Ã¼. /// °´Ã¼¸¦ ãÀ» ¼ö ¾øÀ¸¸é not found ¿¹¿Ü¸¦ ¹ß»ý½Ãŵ´Ï´Ù. /// /// /// /// // Á¶°Ç½ÄÀ¸·Î Person °´Ã¼ °¡Á®¿À±â /// try { /// var person = db.Get(p => p.Email == "test@example.com"); /// Console.WriteLine($"À̸§: {person.Name}"); /// } catch (Exception) { /// Console.WriteLine("Á¶°Ç¿¡ ¸Â´Â PersonÀ» ãÀ» ¼ö ¾ø½À´Ï´Ù"); /// } /// /// public T Get(Expression> predicate) where T : new() { return Table().Where(predicate).First(); } /// /// Å×ÀÌºí¿¡¼­ ÁöÁ¤µÈ ±âº» ۸¦ °¡Áø °´Ã¼¸¦ °Ë»öÇÕ´Ï´Ù. /// ÀÌ ¸Þ¼­µå´Â ÁöÁ¤µÈ ŸÀÔ¿¡ (PrimaryKeyAttribute¸¦ »ç¿ëÇÏ¿©) /// ÁöÁ¤µÈ PrimaryKey°¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ±âº» Ű. /// /// /// ÁÖ¾îÁø ±âº» ۸¦ °¡Áø °´Ã¼ ¶Ç´Â /// °´Ã¼¸¦ ãÀ» ¼ö ¾øÀ¸¸é null. /// /// /// /// // ±âº» Ű·Î Person °´Ã¼ ã±â (¾øÀ¸¸é null ¹Ýȯ) /// var person = db.Find(1); /// if (person != null) { /// Console.WriteLine($"ã¾Ò½À´Ï´Ù: {person.Name}"); /// } else { /// Console.WriteLine("ÇØ´ç IDÀÇ PersonÀÌ ¾ø½À´Ï´Ù"); /// } /// /// public T Find(object pk) where T : new() { var map = GetMapping(typeof(T)); return Query(map.GetByPrimaryKeySql, pk).FirstOrDefault(); } /// /// Å×ÀÌºí¿¡¼­ ÁöÁ¤µÈ ±âº» ۸¦ °¡Áø °´Ã¼¸¦ °Ë»öÇÕ´Ï´Ù. /// ÀÌ ¸Þ¼­µå´Â ÁöÁ¤µÈ ŸÀÔ¿¡ (PrimaryKeyAttribute¸¦ »ç¿ëÇÏ¿©) /// ÁöÁ¤µÈ PrimaryKey°¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ±âº» Ű. /// /// /// °´Ã¼ ŸÀÔÀ» ½Äº°ÇÏ´Â µ¥ »ç¿ëµÇ´Â TableMapping. /// /// /// ÁÖ¾îÁø ±âº» ۸¦ °¡Áø °´Ã¼ ¶Ç´Â /// °´Ã¼¸¦ ãÀ» ¼ö ¾øÀ¸¸é null. /// /// /// /// // ¸ÅÇÎ °´Ã¼¸¦ »ç¿ëÇØ °´Ã¼ ã±â /// var map = db.GetMapping(typeof(Person)); /// var obj = db.Find(1, map); /// if (obj != null) { /// var person = obj as Person; /// Console.WriteLine($"ã¾Ò½À´Ï´Ù: {person.Name}"); /// } /// /// public object Find(object pk, TableMapping map) { return Query(map, map.GetByPrimaryKeySql, pk).FirstOrDefault(); } /// /// Å×ÀÌºí¿¡¼­ Á¶°Ç½Ä°ú ÀÏÄ¡Çϴ ù ¹øÂ° °´Ã¼¸¦ °Ë»öÇÕ´Ï´Ù. /// /// /// ¾î¶² °´Ã¼¸¦ ãÀ»Áö °áÁ¤ÇÏ´Â Á¶°Ç½Ä. /// /// /// ÁÖ¾îÁø Á¶°Ç½Ä°ú ÀÏÄ¡ÇÏ´Â °´Ã¼ ¶Ç´Â /// °´Ã¼¸¦ ãÀ» ¼ö ¾øÀ¸¸é null. /// /// /// /// // Á¶°Ç½ÄÀ¸·Î Person °´Ã¼ ã±â (¾øÀ¸¸é null ¹Ýȯ) /// var person = db.Find(p => p.Email == "test@example.com"); /// if (person != null) { /// Console.WriteLine($"ã¾Ò½À´Ï´Ù: {person.Name}"); /// } else { /// Console.WriteLine("ÇØ´ç À̸ÞÀÏÀÇ PersonÀÌ ¾ø½À´Ï´Ù"); /// } /// /// public T Find(Expression> predicate) where T : new() { return Table().Where(predicate).FirstOrDefault(); } /// /// ÀÌ È£ÃâµÇ¾ú°í µ¥ÀÌÅͺ£À̽º°¡ À» ±â´Ù¸®°í ÀÖ´ÂÁö ¿©ºÎ. /// public bool IsInTransaction { get { return _transactionDepth > 0; } } /// /// »õ Æ®·£Àè¼ÇÀ» ½ÃÀÛÇÕ´Ï´Ù. Æ®·£Àè¼ÇÀ» Á¾·áÇÏ·Á¸é À» È£ÃâÇϼ¼¿ä. /// /// Æ®·£Àè¼ÇÀÌ ÀÌ¹Ì ½ÃÀÛµÈ °æ¿ì ¿¹¿Ü°¡ ¹ß»ýÇÕ´Ï´Ù. /// /// /// // Æ®·£Àè¼Ç »ç¿ë /// try { /// db.BeginTransaction(); /// /// // ¿©·¯ ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// db.Insert(new Person { Name = "±èö¼ö", Age = 25 }); /// /// // ¼º°øÀûÀ¸·Î ¿Ï·áµÇ¸é Æ®·£Àè¼Ç Ä¿¹Ô /// db.Commit(); /// } catch (Exception) { /// // ¿À·ù ¹ß»ý½Ã ÀÚµ¿À¸·Î ·Ñ¹éµË´Ï´Ù /// Console.WriteLine("Æ®·£Àè¼Ç ½ÇÆÐ"); /// } /// /// public void BeginTransaction() { // BEGIN ¸í·ÉÀº Æ®·£Àè¼Ç ½ºÅÃÀÌ ºñ¾î ÀÖ´Â °æ¿ì, Áï º¸·ù ÁßÀÎ Æ®·£Àè¼ÇÀÌ ¾ø´Â °æ¿ì¿¡¸¸ ÀÛµ¿ÇÕ´Ï´Ù. // BEGIN ¸í·ÉÀÌ È£ÃâµÉ ¶§ Æ®·£Àè¼Ç ½ºÅÃÀÌ ºñ¾î ÀÖÁö ¾ÊÀ¸¸é ¸í·ÉÀÌ ¿À·ù¿Í ÇÔ²² ½ÇÆÐÇÕ´Ï´Ù. // ¿À·ù·Î ÀÎÇØ Ãæµ¹ÀÌ ¹ß»ýÇÏ´Â ´ë½Å, ¿À·ù°¡ ¹ß»ýÇÒ ¼ö ÀÖ´Â BeginTransaction È£ÃâÀ» ¹«½ÃÇÕ´Ï´Ù. if (Interlocked.CompareExchange(ref _transactionDepth, 1, 0) == 0) { try { Execute("begin transaction"); } catch (Exception ex) { var sqlExp = ex as SQLiteException; if (sqlExp != null) { // ¾Æ·¡ ³ª¿­µÈ ¿À·ù¿¡ ´ëÇØ¼­´Â ¾ÖÇø®ÄÉÀ̼ǿ¡¼­ ROLLBACK ¸í·ÉÀ» ¸í½ÃÀûÀ¸·Î ½ÇÇàÇÏ¿© ´ëÀÀÇÏ´Â °ÍÀÌ ÁÁ½À´Ï´Ù. // TODO: ÀÌ ·Ñ¹é ¾ÈÀü ÀåÄ¡´Â ¸ðµç ¿À·ù ¹ß»ý »çÀÌÆ®¿¡ Àû¿ëµÇ¾î¾ß ÇÕ´Ï´Ù. switch (sqlExp.Result) { case SQLite3.Result.IOError: case SQLite3.Result.Full: case SQLite3.Result.Busy: case SQLite3.Result.NoMem: case SQLite3.Result.Interrupt: RollbackTo(null, true); break; } } else { // SaveTransactionPoint¿¡¼­ catch ÀÌÈÄ ÀÌ¹Ì Æ®·£Àè¼Ç Æ÷ÀÎÆ®¸¦ // »ý¼ºÇÑ °æ¿ì¿¡´Â VolatileWrite°¡ ¾Æ´Ñ decrement¸¦ È£ÃâÇϼ¼¿ä. Interlocked.Decrement(ref _transactionDepth); } throw; } } else { // ÀÌ¹Ì ¿­·Á ÀÖ´Â Æ®·£Àè¼Ç¿¡ BeginTransactionÀ» È£ÃâÇÏ´Â °ÍÀº À¯È¿ÇÏÁö ¾Ê½À´Ï´Ù. throw new InvalidOperationException("Cannot begin a transaction while already in a transaction."); } } /// /// ÇöÀç Æ®·£Àè¼Ç ŸÀÓ¶óÀÎÀÇ ÁöÁ¡¿¡¼­ µ¥ÀÌÅͺ£À̽º¿¡ ¼¼À̺êÆ÷ÀÎÆ®¸¦ »ý¼ºÇÕ´Ï´Ù. /// ÁøÇà ÁßÀÎ Æ®·£Àè¼ÇÀÌ ¾øÀ¸¸é »õ Æ®·£Àè¼ÇÀ» ½ÃÀÛÇÕ´Ï´Ù. /// /// ¹ÝȯµÈ ¼¼À̺êÆ÷ÀÎÆ® ÀÌÈÄÀÇ ÀÛ¾÷À» Ãë¼ÒÇÏ·Á¸é ¸¦ È£ÃâÇϼ¼¿ä. /// ¹ÝȯµÈ ¼¼À̺êÆ÷ÀÎÆ® ÀÌÈÄÀÇ ÀÛ¾÷À» È®Á¤ÇÏ·Á¸é ¸¦ È£ÃâÇϼ¼¿ä. /// Æ®·£Àè¼ÇÀ» Á¾·áÇÏ°í ¸ðµç º¯°æ»çÇ×À» È®Á¤ÇÏ·Á¸é À» È£ÃâÇϼ¼¿ä. /// /// ¼¼À̺êÆ÷ÀÎÆ®¸¦ ½Äº°ÇÏ´Â ¹®ÀÚ¿­. /// /// /// // ¼¼À̺êÆ÷ÀÎÆ®¸¦ »ç¿ëÇÑ Æ®·£Àè¼Ç ó¸® /// db.BeginTransaction(); /// /// // ù ¹øÂ° ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// /// // ¼¼À̺êÆ÷ÀÎÆ® »ý¼º /// string savepoint = db.SaveTransactionPoint(); /// /// try { /// // µÎ ¹øÂ° ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "±èö¼ö", Age = 25 }); /// /// // ¹®Á¦°¡ ¾øÀ¸¸é ¼¼À̺êÆ÷ÀÎÆ® ÇØÁ¦(È®Á¤) /// db.Release(savepoint); /// } catch(Exception) { /// // ¹®Á¦°¡ ¹ß»ýÇÏ¸é ¼¼À̺êÆ÷ÀÎÆ®·Î ·Ñ¹é /// db.RollbackTo(savepoint); /// } /// /// // Æ®·£Àè¼Ç È®Á¤ /// db.Commit(); /// /// public string SaveTransactionPoint() { int depth = Interlocked.Increment(ref _transactionDepth) - 1; string retVal = "S" + _rand.Next(short.MaxValue) + "D" + depth; try { Execute("savepoint " + retVal); } catch (Exception ex) { var sqlExp = ex as SQLiteException; if (sqlExp != null) { // It is recommended that applications respond to the errors listed below // by explicitly issuing a ROLLBACK command. // TODO: This rollback failsafe should be localized to all throw sites. switch (sqlExp.Result) { case SQLite3.Result.IOError: case SQLite3.Result.Full: case SQLite3.Result.Busy: case SQLite3.Result.NoMem: case SQLite3.Result.Interrupt: RollbackTo(null, true); break; } } else { Interlocked.Decrement(ref _transactionDepth); } throw; } return retVal; } /// /// ¶Ç´Â ·Î ½ÃÀÛµÈ Æ®·£Àè¼ÇÀ» ·Ñ¹éÇÕ´Ï´Ù. /// /// /// /// // Æ®·£Àè¼ÇÀ» ½ÃÀÛÇÏ°í ½ÇÆÐ ½Ã ·Ñ¹é /// try { /// db.BeginTransaction(); /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// /// // ¿À·ù ¹ß»ýÇÒ ¼ö ÀÖ´Â ÀÛ¾÷ /// if (SomeConditionFails()) { /// // Æ®·£Àè¼Ç ·Ñ¹é /// db.Rollback(); /// return; /// } /// /// // ¼º°ø ½Ã Ä¿¹Ô /// db.Commit(); /// } catch(Exception) { /// // ¿¹¿Ü ¹ß»ý ½Ã ·Ñ¹é /// db.Rollback(); /// } /// /// public void Rollback() { RollbackTo(null, false); } /// /// ¶Ç´Â SaveTransactionPoint¿¡ ÀÇÇØ »ý¼ºµÈ ¼¼À̺êÆ÷ÀÎÆ®·Î ·Ñ¹éÇÕ´Ï´Ù. /// /// ¿¡ ÀÇÇØ ¹ÝȯµÈ ·Ñ¹éÇÒ ¼¼À̺êÆ÷ÀÎÆ®ÀÇ À̸§. savepoint°¡ nullÀ̰ųª ºñ¾î ÀÖÀ¸¸é ÀÌ ¸Þ¼­µå´Â È£Ãâ°ú µ¿ÀÏÇÕ´Ï´Ù. /// /// /// // ¼¼À̺êÆ÷ÀÎÆ®¸¦ »ç¿ëÇÑ ºÎºÐ ·Ñ¹é /// db.BeginTransaction(); /// /// // ù ¹øÂ° ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// /// // ¼¼À̺êÆ÷ÀÎÆ® »ý¼º /// string savepoint = db.SaveTransactionPoint(); /// /// // µÎ ¹øÂ° ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "±èö¼ö", Age = 25 }); /// /// // µÎ ¹øÂ° ÀÛ¾÷¸¸ ·Ñ¹é (¼¼À̺êÆ÷ÀÎÆ®·Î µÇµ¹¸®±â) /// db.RollbackTo(savepoint); /// /// // ù ¹øÂ° ÀÛ¾÷Àº ¿©ÀüÈ÷ À¯È¿ÇÏ¸ç Æ®·£Àè¼ÇÀ» Ä¿¹Ô /// db.Commit(); /// /// public void RollbackTo(string savepoint) { RollbackTo(savepoint, false); } /// /// ¿¡ ÀÇÇØ ½ÃÀÛµÈ °Å·¡¸¦ ·Ñ¹éÇÕ´Ï´Ù. /// /// ¿¹¿Ü ¹ß»ýÀ» ¹æÁöÇÏ·Á¸é true, ±×·¸Áö ¾ÊÀ¸¸é false void RollbackTo(string savepoint, bool noThrow) { // Rolling back without a TO clause rolls backs all transactions // and leaves the transaction stack empty. try { if (String.IsNullOrEmpty(savepoint)) { if (Interlocked.Exchange(ref _transactionDepth, 0) > 0) { Execute("rollback"); } } else { DoSavePointExecute(savepoint, "rollback to "); } } catch (SQLiteException) { if (!noThrow) throw; } // No need to rollback if there are no transactions open. } /// /// ¿¡¼­ ¹ÝȯµÈ ¼¼À̺êÆ÷ÀÎÆ®¸¦ ÇØÁ¦ÇÕ´Ï´Ù. /// ¼¼À̺êÆ÷ÀÎÆ®¸¦ ÇØÁ¦Çϸé ÇØ´ç ¼¼À̺êÆ÷ÀÎÆ®°¡ Æ®·£Àè¼ÇÀ» ½ÃÀÛÇß´ø °æ¿ì /// ±× ¼¼À̺êÆ÷ÀÎÆ® ÀÌÈÄÀÇ º¯°æ»çÇ×ÀÌ ¿µ±¸ÀûÀ¸·Î Àû¿ëµË´Ï´Ù. /// ±×·¸Áö ¾ÊÀº °æ¿ì¿¡´Â È£ÃâÀÌ ÀÖÀ» ¶§±îÁö º¯°æ»çÇ×ÀÌ ´ë±â »óÅ·ΠÀ¯ÁöµË´Ï´Ù. /// /// RELEASE ¸í·ÉÀº SAVEPOINT¿¡ ´ëÇÑ COMMIT°ú °°½À´Ï´Ù. /// /// ÇØÁ¦ÇÒ ¼¼À̺êÆ÷ÀÎÆ®ÀÇ À̸§. ÀÌ ¹®ÀÚ¿­Àº È£Ãâ °á°ú¿©¾ß ÇÕ´Ï´Ù. /// /// /// // ¼¼À̺êÆ÷ÀÎÆ® ÇØÁ¦(È®Á¤) »ç¿ë ¿¹Á¦ /// db.BeginTransaction(); /// /// // ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// /// // ¼¼À̺êÆ÷ÀÎÆ® »ý¼º /// string savepoint1 = db.SaveTransactionPoint(); /// db.Insert(new Person { Name = "±èö¼ö", Age = 25 }); /// /// // ´Ù¸¥ ¼¼À̺êÆ÷ÀÎÆ® »ý¼º /// string savepoint2 = db.SaveTransactionPoint(); /// db.Insert(new Person { Name = "ÀÌ¿µÈñ", Age = 35 }); /// /// // µÎ ¹øÂ° ¼¼À̺êÆ÷ÀÎÆ®ÀÇ º¯°æ»çÇ×À» È®Á¤ /// db.Release(savepoint2); /// /// // ÀÌÁ¦ ù ¹øÂ° ¼¼À̺êÆ÷ÀÎÆ®ÀÇ º¯°æ»çÇ×µµ È®Á¤ /// db.Release(savepoint1); /// /// // Àüü Æ®·£Àè¼Ç Ä¿¹Ô /// db.Commit(); /// /// public void Release(string savepoint) { DoSavePointExecute(savepoint, "release "); } /// /// ¼¼À̺êÆ÷ÀÎÆ®¿¡ ´ëÇÑ ¸í·ÉÀ» ½ÇÇàÇÕ´Ï´Ù. /// /// ¼¼À̺êÆ÷ÀÎÆ® ½Äº°ÀÚ /// ½ÇÇàÇÒ SQL ¸í·É(rollback to ¶Ç´Â release) /// ¼¼À̺êÆ÷ÀÎÆ®°¡ À¯È¿ÇÏÁö ¾ÊÀº °æ¿ì ¹ß»ý void DoSavePointExecute(string savepoint, string cmd) { // Validate the savepoint int firstLen = savepoint.IndexOf('D'); if (firstLen >= 2 && savepoint.Length > firstLen + 1) { int depth; if (Int32.TryParse(savepoint.Substring(firstLen + 1), out depth)) { // TODO: Mild race here, but inescapable without locking almost everywhere. if (0 <= depth && depth < _transactionDepth) { #if NETFX_CORE Volatile.Write (ref _transactionDepth, depth); #elif SILVERLIGHT _transactionDepth = depth; #else Thread.VolatileWrite(ref _transactionDepth, depth); #endif Execute(cmd + savepoint); return; } } } throw new ArgumentException("savePoint is not valid, and should be the result of a call to SaveTransactionPoint.", "savePoint"); } /// /// À¸·Î ½ÃÀÛµÈ Æ®·£Àè¼ÇÀ» Ä¿¹ÔÇÕ´Ï´Ù. /// /// /// /// // Æ®·£Àè¼Ç Ä¿¹Ô ¿¹Á¦ /// try { /// db.BeginTransaction(); /// /// // ¿©·¯ ÀÛ¾÷ ¼öÇà /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// db.Insert(new Person { Name = "±èö¼ö", Age = 25 }); /// db.Insert(new Person { Name = "ÀÌ¿µÈñ", Age = 35 }); /// /// // ¸ðµç ÀÛ¾÷ÀÌ ¼º°øÀûÀ¸·Î ¿Ï·áµÇ¸é Æ®·£Àè¼Ç Ä¿¹Ô /// db.Commit(); /// } catch(Exception ex) { /// // ¿À·ù ¹ß»ý ½Ã ·Ñ¹é /// db.Rollback(); /// Console.WriteLine("Æ®·£Àè¼Ç ½ÇÆÐ: " + ex.Message); /// } /// /// public void Commit() { if (Interlocked.Exchange(ref _transactionDepth, 0) != 0) { Execute("commit"); } // Do nothing on a commit with no open transaction } /// /// ÁÖ¾îÁø ¾×¼ÇÀ» SAVEPOINT·Î °¨½Î¼­ (ÁßøµÉ ¼ö ÀÖ´Â) Æ®·£Àè¼Ç ³»¿¡¼­ ½ÇÇàÇÕ´Ï´Ù. /// ¿¹¿Ü°¡ ¹ß»ýÇϸé ÇöÀç ¼¼À̺êÆ÷ÀÎÆ®»Ó¸¸ ¾Æ´Ï¶ó Àüü Æ®·£Àè¼ÇÀÌ ·Ñ¹éµË´Ï´Ù. /// ¹ß»ýÇÑ ¿¹¿Ü´Â ´Ù½Ã ´øÁ®Áý´Ï´Ù. /// /// /// Æ®·£Àè¼Ç ³»¿¡¼­ ¼öÇàÇÒ . actionÀº ¿¬°á¿¡ ´ëÇÑ ¿©·¯ ÀÛ¾÷À» Æ÷ÇÔÇÒ ¼ö ÀÖÁö¸¸ /// ¶Ç´Â À» È£ÃâÇØ¼­´Â ¾È µË´Ï´Ù. /// /// /// /// // RunInTransactionÀ» »ç¿ëÇÑ Æ®·£Àè¼Ç ó¸® /// db.RunInTransaction(() => { /// // ¸ðµç ÀÛ¾÷Àº ÇϳªÀÇ Æ®·£Àè¼ÇÀ¸·Î ½ÇÇàµË´Ï´Ù. /// db.Insert(new Person { Name = "È«±æµ¿", Age = 30 }); /// db.Insert(new Person { Name = "±èö¼ö", Age = 25 }); /// db.Update(new Person { Id = 1, Name = "È«±æµ¿", Age = 31 }); /// /// // ÀÌ ºí·Ï ³»¿¡¼­ ¿¹¿Ü°¡ ¹ß»ýÇÏ¸é ¸ðµç ÀÛ¾÷ÀÌ ·Ñ¹éµË´Ï´Ù. /// }); /// /// // ¿©±â¿¡ µµ´ÞÇÏ¸é Æ®·£Àè¼ÇÀÌ ¼º°øÀûÀ¸·Î Ä¿¹ÔµÈ °ÍÀÔ´Ï´Ù. /// /// public void RunInTransaction(Action action) { try { lock (syncObjects[DatabasePath]) { var savePoint = SaveTransactionPoint(); action(); Release(savePoint); } } catch (Exception) { Rollback(); throw; } } /// /// ´Ù¸¥ ½º·¹µå°¡ µ¿ÀÏÇÑ µ¥ÀÌÅͺ£À̽º¿¡ Á¢±ÙÇÏÁö ¸øÇϵµ·Ï Â÷´ÜÇϸ鼭 ÁÖ¾îÁø ¾×¼ÇÀ» ½ÇÇàÇÕ´Ï´Ù. /// /// /// ¶ô(lock) ³»¿¡¼­ ¼öÇàÇÒ . /// /// /// /// // RunInDatabaseLockÀ» »ç¿ëÇÑ ½º·¹µå ¾ÈÀüÇÑ µ¥ÀÌÅͺ£À̽º Á¢±Ù /// db.RunInDatabaseLock(() => { /// // ÀÌ ºí·Ï ³»ÀÇ ÀÛ¾÷Àº ´Ù¸¥ ½º·¹µå¿¡¼­ µ¿ÀÏÇÑ µ¥ÀÌÅͺ£À̽º¿¡ Á¢±ÙÇÒ ¼ö ¾ø½À´Ï´Ù. /// var count = db.ExecuteScalar("SELECT COUNT(*) FROM Person"); /// /// if (count > 0) { /// var people = db.Query("SELECT * FROM Person"); /// foreach (var person in people) { /// // ¾ÈÀüÇÏ°Ô µ¥ÀÌÅÍ Ã³¸® /// ProcessPerson(person); /// } /// } /// }); /// /// public void RunInDatabaseLock(Action action) { lock (syncObjects[DatabasePath]) { action(); } } /// /// ÁöÁ¤µÈ ¸ðµç °´Ã¼¸¦ »ðÀÔÇÕ´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼ÀÇ Ä÷º¼Ç. /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // °´Ã¼ ¸ñ·ÏÀ» ÇÑ ¹ø¿¡ »ðÀÔ /// var people = new List /// { /// new Person { Name = "È«±æµ¿", Age = 30 }, /// new Person { Name = "±èö¼ö", Age = 25 }, /// new Person { Name = "ÀÌ¿µÈñ", Age = 35 } /// }; /// /// // ¸ðµç °´Ã¼¸¦ »ðÀÔÇÏ°í ¿µÇâ¹ÞÀº Çà ¼ö¸¦ ¹Ýȯ /// int count = db.InsertAll(people); /// Console.WriteLine($"»ðÀÔµÈ Çà ¼ö: {count}"); /// /// public int InsertAll(System.Collections.IEnumerable objects) { var c = 0; RunInTransaction(() => { foreach (var r in objects) { c += Insert(r); } }); return c; } /// /// ÁöÁ¤µÈ ¸ðµç °´Ã¼¸¦ »ðÀÔÇÕ´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼µéÀÇ Ä÷º¼Ç. /// /// /// ¸í·É¿¡ »ðÀԵǴ ¸®ÅÍ·² SQL ÄÚµåÀÔ´Ï´Ù. INSERT {extra} INTO ... /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // ¿©·¯ °´Ã¼ ÇÑ ¹ø¿¡ »ðÀÔ (Ãæµ¹ ¹«½Ã ¿É¼Ç »ç¿ë) /// var people = new List /// { /// new Person { Id = 1, Name = "È«±æµ¿", Age = 30 }, /// new Person { Id = 2, Name = "±èö¼ö", Age = 25 }, /// new Person { Id = 3, Name = "ÀÌ¿µÈñ", Age = 35 } /// }; /// /// // OR IGNORE ¿É¼ÇÀ¸·Î »ðÀÔÇÏ¿© Áߺ¹ Ű Ãæµ¹ ¹«½Ã /// int count = db.InsertAll(people, "OR IGNORE"); /// Console.WriteLine($"»ðÀÔµÈ Çà ¼ö: {count}"); /// /// public int InsertAll(System.Collections.IEnumerable objects, string extra) { var c = 0; RunInTransaction(() => { foreach (var r in objects) { c += Insert(r, extra); } }); return c; } /// /// ÁöÁ¤µÈ ¸ðµç °´Ã¼¸¦ »ðÀÔÇÕ´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼µéÀÇ Ä÷º¼Ç. /// /// /// »ðÀÔÇÒ °´Ã¼µéÀÇ Å¸ÀÔ. /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // µ¿Àû ŸÀÔÀ¸·Î ¿©·¯ °´Ã¼ ÇÑ ¹ø¿¡ »ðÀÔ /// var people = new List /// { /// new Person { Name = "È«±æµ¿", Age = 30 }, /// new Person { Name = "±èö¼ö", Age = 25 } /// }; /// /// // ƯÁ¤ ŸÀÔÀ¸·Î ÁöÁ¤ÇÏ¿© »ðÀÔ /// int count = db.InsertAll(people, typeof(Person)); /// Console.WriteLine($"»ðÀÔµÈ Çà ¼ö: {count}"); /// /// public int InsertAll(System.Collections.IEnumerable objects, Type objType) { var c = 0; RunInTransaction(() => { foreach (var r in objects) { c += Insert(r, objType); } }); return c; } /// /// ÁÖ¾îÁø °´Ã¼¸¦ »ðÀÔÇϰí, ÀÚµ¿ Áõ°¡ ±âº» ۰¡ ÀÖ´Ù¸é ±× °ªÀ» °¡Á®¿É´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼. /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // Person °´Ã¼¸¦ »ý¼ºÇÏ°í »ðÀÔ /// var person = new Person { Name = "È«±æµ¿", Age = 30 }; /// /// // °´Ã¼ »ðÀÔ ¹× ¿µÇâ¹ÞÀº Çà ¼ö È®ÀÎ /// int rowsAffected = db.Insert(person); /// /// // ÀÚµ¿ Áõ°¡ ID°¡ ÀÖ´Â °æ¿ì, »ðÀÔ ÈÄ ID°¡ °´Ã¼¿¡ ¼³Á¤µÊ /// Console.WriteLine($"»ðÀÔµÈ ID: {person.Id}"); /// /// public int Insert(object obj) { if (obj == null) { return 0; } return Insert(obj, "", obj.GetType()); } /// /// ÁÖ¾îÁø °´Ã¼¸¦ »ðÀÔÇϰí, ÀÚµ¿ Áõ°¡ ±âº» ۰¡ ÀÖ´Ù¸é ±× °ªÀ» °¡Á®¿É´Ï´Ù. /// UNIQUE Á¦¾à Á¶°Ç À§¹ÝÀÌ ¹ß»ýÇÑ °æ¿ì ±âÁ¸ °´Ã¼¸¦ »èÁ¦ÇÕ´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼. /// /// /// ¼öÁ¤µÈ ÇàÀÇ ¼ö. /// /// /// /// // Áߺ¹ ۰¡ ÀÖ´Â °æ¿ì ±³Ã¼ÇÏ¿© »ðÀÔ /// var existingPerson = new Person { Id = 1, Name = "È«±æµ¿", Age = 30 }; /// /// // µ¿ÀÏÇÑ Id·Î »õ °´Ã¼ »ðÀÔ (±âÁ¸ °´Ã¼´Â ±³Ã¼µÊ) /// db.InsertOrReplace(new Person { Id = 1, Name = "È«±æµ¿(¼öÁ¤)", Age = 31 }); /// /// // °ªÀÌ º¯°æµÈ °´Ã¼¸¦ ±³Ã¼ »ðÀÔÇÏ´Â ¹æ½ÄÀ¸·Î ¾÷µ¥ÀÌÆ®ÇÒ ¼öµµ ÀÖÀ½ /// var person = db.Get(1); /// person.Age += 1; /// db.InsertOrReplace(person); /// /// public int InsertOrReplace(object obj) { if (obj == null) { return 0; } return Insert(obj, "OR REPLACE", obj.GetType()); } /// /// ÁÖ¾îÁø °´Ã¼¸¦ »ðÀÔÇϰí ÀÚµ¿ Áõ°¡ ±âº» ۰¡ ÀÖ´Ù¸é ±× °ªÀ» °¡Á®¿É´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼. /// /// /// ¸í·É¿¡ »ðÀԵǴ ¸®ÅÍ·² SQL ÄÚµåÀÔ´Ï´Ù. INSERT {extra} INTO ... /// /// /// »ðÀÔÇÒ °´Ã¼ÀÇ Å¸ÀÔ. /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // ƯÁ¤ ŸÀÔÀ¸·Î °´Ã¼ »ðÀÔ /// object person = new Person { Name = "È«±æµ¿", Age = 30 }; /// /// // OR IGNORE ¿É¼ÇÀ» »ç¿ëÇÏ¿© Ãæµ¹ ½Ã ¹«½Ã /// int count = db.Insert(person, "OR IGNORE", typeof(Person)); /// /// // ¶Ç´Â ´Ù¸¥ SQL ¿É¼Ç Ãß°¡ /// db.Insert(person, "OR FAIL", typeof(Person)); /// /// public int Insert(object obj, Type objType) { return Insert(obj, "", objType); } /// /// ÁÖ¾îÁø °´Ã¼¸¦ »ðÀÔÇϰí ÀÚµ¿ Áõ°¡ ±âº» ۰¡ ÀÖ´Ù¸é ±× °ªÀ» °¡Á®¿É´Ï´Ù. /// UNIQUE Á¦¾à Á¶°Ç À§¹ÝÀÌ ¹ß»ýÇÑ °æ¿ì ±âÁ¸ °´Ã¼¸¦ ±³Ã¼ÇÕ´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼. /// /// /// »ðÀÔÇÒ °´Ã¼ÀÇ Å¸ÀÔ. /// /// /// ¼öÁ¤µÈ ÇàÀÇ ¼ö. /// /// /// /// // ƯÁ¤ ŸÀÔÀ¸·Î °´Ã¼ »ðÀÔ ¹× ±³Ã¼ /// object person = new Person { Id = 1, Name = "È«±æµ¿", Age = 30 }; /// /// // ±³Ã¼ »ðÀÔ ½ÇÇà /// int count = db.InsertOrReplace(person, typeof(Person)); /// /// public int InsertOrReplace(object obj, Type objType) { return Insert(obj, "OR REPLACE", objType); } /// /// ÁÖ¾îÁø °´Ã¼¸¦ »ðÀÔÇϰí ÀÚµ¿ Áõ°¡ ±âº» ۰¡ ÀÖ´Ù¸é ±× °ªÀ» °¡Á®¿É´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼. /// /// /// ¸í·É¿¡ »ðÀԵǴ ¸®ÅÍ·² SQL ÄÚµåÀÔ´Ï´Ù. INSERT {extra} INTO ... /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // Ãæµ¹ ¹«½Ã ¿É¼ÇÀ¸·Î °´Ã¼ »ðÀÔ /// var person = new Person { Id = 1, Name = "È«±æµ¿", Age = 30 }; /// /// // OR IGNORE ¿É¼ÇÀ¸·Î »ðÀÔÇÏ¿© Áߺ¹ Ű Ãæµ¹ ¹«½Ã /// int count = db.Insert(person, "OR IGNORE"); /// Console.WriteLine($"»ðÀÔµÈ Çà ¼ö: {count}"); /// /// public int Insert(object obj, string extra) { if (obj == null) { return 0; } return Insert(obj, extra, obj.GetType()); } /// /// ÁÖ¾îÁø °´Ã¼¸¦ »ðÀÔÇϰí ÀÚµ¿ Áõ°¡ ±âº» ۰¡ ÀÖ´Ù¸é ±× °ªÀ» °¡Á®¿É´Ï´Ù. /// /// /// »ðÀÔÇÒ °´Ã¼. /// /// /// ¸í·É¿¡ »ðÀԵǴ ¸®ÅÍ·² SQL ÄÚµåÀÔ´Ï´Ù. INSERT {extra} INTO ... /// /// /// »ðÀÔÇÒ °´Ã¼ÀÇ Å¸ÀÔ. /// /// /// Å×ÀÌºí¿¡ Ãß°¡µÈ ÇàÀÇ ¼ö. /// /// /// /// // ´Ù¾çÇÑ ¿É¼ÇÀ¸·Î °´Ã¼ »ðÀÔ /// var person = new Person { Name = "È«±æµ¿", Age = 30 }; /// /// // ±âº» »ðÀÔ /// db.Insert(person); /// /// // OR IGNORE ¿É¼ÇÀ¸·Î Ãæµ¹ ½Ã ¹«½Ã /// db.Insert(person, "OR IGNORE"); /// /// // ƯÁ¤ ŸÀÔÀ¸·Î ÁöÁ¤ /// db.Insert(person, "OR REPLACE", typeof(Person)); /// /// public int Insert(object obj, string extra, Type objType) { if (obj == null || objType == null) { return 0; } var map = GetMapping(objType); #if NETFX_CORE if (map.PK != null && map.PK.IsAutoGuid) { // no GetProperty so search our way up the inheritance chain till we find it PropertyInfo prop; while (objType != null) { var info = objType.GetTypeInfo(); prop = info.GetDeclaredProperty(map.PK.PropertyName); if (prop != null) { if (prop.GetValue(obj, null).Equals(Guid.Empty)) { prop.SetValue(obj, Guid.NewGuid(), null); } break; } objType = info.BaseType; } } #else if (map.PK != null && map.PK.IsAutoGuid) { var prop = objType.GetProperty(map.PK.PropertyName); if (prop != null) { //if (prop.GetValue(obj, null).Equals(Guid.Empty)) { if (prop.GetGetMethod().Invoke(obj, null).Equals(Guid.Empty)) { prop.SetValue(obj, Guid.NewGuid(), null); } } } #endif var replacing = string.Compare(extra, "OR REPLACE", StringComparison.OrdinalIgnoreCase) == 0; var cols = replacing ? map.InsertOrReplaceColumns : map.InsertColumns; var vals = new object[cols.Length]; for (var i = 0; i < vals.Length; i++) { vals[i] = cols[i].GetValue(obj); } var insertCmd = map.GetInsertCommand(this, extra); int count; try { count = insertCmd.ExecuteNonQuery(vals); } catch (SQLiteException ex) { if (SQLite3.ExtendedErrCode(this.Handle) == SQLite3.ExtendedResult.ConstraintNotNull) { throw NotNullConstraintViolationException.New(ex.Result, ex.Message, map, obj); } throw; } if (map.HasAutoIncPK) { var id = SQLite3.LastInsertRowid(Handle); map.SetAutoIncPK(obj, id); } return count; } /// /// ÁöÁ¤µÈ °´Ã¼¸¦ »ç¿ëÇÏ¿© Å×À̺íÀÇ ¸ðµç ¿­À» ±âº» ۸¦ Á¦¿ÜÇÏ°í ¾÷µ¥ÀÌÆ®ÇÕ´Ï´Ù. /// °´Ã¼¿¡´Â ±âº» ۰¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ¾÷µ¥ÀÌÆ®ÇÒ °´Ã¼. PrimaryKeyAttribute¸¦ »ç¿ëÇÏ¿© ÁöÁ¤µÈ ±âº» ۰¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ¾÷µ¥ÀÌÆ®µÈ ÇàÀÇ ¼ö. /// /// /// /// // µ¥ÀÌÅͺ£À̽º¿¡¼­ °´Ã¼ °Ë»ö /// var person = db.Get(1); /// /// // °´Ã¼ ¼Ó¼º º¯°æ /// person.Name = "È«±æµ¿(¼öÁ¤µÊ)"; /// person.Age = 31; /// /// // º¯°æµÈ °´Ã¼ ¾÷µ¥ÀÌÆ® /// int rowsAffected = db.Update(person); /// Console.WriteLine($"¾÷µ¥ÀÌÆ®µÈ Çà ¼ö: {rowsAffected}"); /// /// public int Update(object obj) { if (obj == null) { return 0; } return Update(obj, obj.GetType()); } /// /// ÁöÁ¤µÈ °´Ã¼¸¦ »ç¿ëÇÏ¿© Å×À̺íÀÇ ¸ðµç ¿­À» ±âº» ۸¦ Á¦¿ÜÇÏ°í ¾÷µ¥ÀÌÆ®ÇÕ´Ï´Ù. /// °´Ã¼¿¡´Â ±âº» ۰¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ¾÷µ¥ÀÌÆ®ÇÒ °´Ã¼. PrimaryKeyAttribute¸¦ »ç¿ëÇÏ¿© ÁöÁ¤µÈ ±âº» ۰¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// ¾÷µ¥ÀÌÆ®ÇÒ °´Ã¼ÀÇ Å¸ÀÔ. /// /// /// ¾÷µ¥ÀÌÆ®µÈ ÇàÀÇ ¼ö. /// /// /// /// // µ¿Àû ŸÀÔÀ¸·Î °´Ã¼ ¾÷µ¥ÀÌÆ® /// object person = new Person { Id = 1, Name = "È«±æµ¿(¼öÁ¤µÊ)", Age = 31 }; /// /// // ƯÁ¤ ŸÀÔÀ¸·Î ÁöÁ¤ÇÏ¿© ¾÷µ¥ÀÌÆ® /// int count = db.Update(person, typeof(Person)); /// Console.WriteLine($"¾÷µ¥ÀÌÆ®µÈ Çà ¼ö: {count}"); /// /// public int Update(object obj, Type objType) { int rowsAffected = 0; if (obj == null || objType == null) { return 0; } var map = GetMapping(objType); var pk = map.PK; if (pk == null) { throw new NotSupportedException("Cannot update " + map.TableName + ": it has no PK"); } var cols = from p in map.Columns where p != pk select p; var vals = from c in cols select c.GetValue(obj); var ps = new List(vals); ps.Add(pk.GetValue(obj)); var q = string.Format("update \"{0}\" set {1} where {2} = ? ", map.TableName, string.Join(",", (from c in cols select "\"" + c.Name + "\" = ? ").ToArray()), pk.Name); try { rowsAffected = Execute(q, ps.ToArray()); } catch (SQLiteException ex) { if (ex.Result == SQLite3.Result.Constraint && SQLite3.ExtendedErrCode(this.Handle) == SQLite3.ExtendedResult.ConstraintNotNull) { throw NotNullConstraintViolationException.New(ex, map, obj); } throw ex; } return rowsAffected; } /// /// ÁöÁ¤µÈ ¸ðµç °´Ã¼¸¦ ¾÷µ¥ÀÌÆ®ÇÕ´Ï´Ù. /// /// /// ¾÷µ¥ÀÌÆ®ÇÒ °´Ã¼µéÀÇ Ä÷º¼Ç. /// /// /// ¼öÁ¤µÈ ÇàÀÇ ¼ö. /// /// /// /// // ¿©·¯ °´Ã¼ ÇÑ ¹ø¿¡ ¾÷µ¥ÀÌÆ® /// var people = db.Query("SELECT * FROM Person WHERE Age < 30"); /// foreach (var person in people) { /// person.Age++; /// } /// /// // ¸ðµç ¼öÁ¤µÈ °´Ã¼¸¦ ÇÑ ¹ø¿¡ ¾÷µ¥ÀÌÆ® /// int count = db.UpdateAll(people); /// Console.WriteLine($"¾÷µ¥ÀÌÆ®µÈ Çà ¼ö: {count}"); /// /// public int UpdateAll(System.Collections.IEnumerable objects) { var c = 0; RunInTransaction(() => { foreach (var r in objects) { c += Update(r); } }); return c; } /// /// ±âº» ۸¦ »ç¿ëÇÏ¿© µ¥ÀÌÅͺ£À̽º¿¡¼­ ÁöÁ¤µÈ °´Ã¼¸¦ »èÁ¦ÇÕ´Ï´Ù. /// /// /// »èÁ¦ÇÒ °´Ã¼. PrimaryKeyAttribute¸¦ »ç¿ëÇÏ¿© ÁöÁ¤µÈ ±âº» ۰¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù. /// /// /// »èÁ¦µÈ ÇàÀÇ ¼ö. /// /// /// /// // µ¥ÀÌÅͺ£À̽º¿¡¼­ °´Ã¼ °Ë»ö /// var person = db.Get(1); /// /// // °´Ã¼ »èÁ¦ /// int rowsAffected = db.Delete(person); /// Console.WriteLine($"»èÁ¦µÈ Çà ¼ö: {rowsAffected}"); /// /// // ¶Ç´Â Á÷Á¢ ID·Î »èÁ¦ /// rowsAffected = db.Delete(2); /// /// public int Delete(object objectToDelete) { var map = GetMapping(objectToDelete.GetType()); var pk = map.PK; if (pk == null) { throw new NotSupportedException("Cannot delete " + map.TableName + ": it has no PK"); } var q = string.Format("delete from \"{0}\" where \"{1}\" = ?", map.TableName, pk.Name); return Execute(q, pk.GetValue(objectToDelete)); } /// /// ÁöÁ¤µÈ ±âº» ۸¦ °¡Áø °´Ã¼¸¦ »èÁ¦ÇÕ´Ï´Ù. /// /// /// »èÁ¦ÇÒ °´Ã¼ÀÇ ±âº» Ű. /// /// /// »èÁ¦µÈ °´Ã¼ÀÇ ¼ö. /// /// /// °´Ã¼ÀÇ Å¸ÀÔ. /// /// /// /// // ±âº» Ű·Î Á÷Á¢ °´Ã¼ »èÁ¦ /// int rowsDeleted = db.Delete(1); /// Console.WriteLine($"ID°¡ 1ÀÎ Person °´Ã¼ {rowsDeleted}°³ »èÁ¦µÊ"); /// /// // ¿©·¯ ID¸¦ Â÷·Ê·Î »èÁ¦ /// int[] idsToDelete = { 2, 3, 4 }; /// foreach (int id in idsToDelete) { /// db.Delete(id); /// } /// /// public int Delete(object primaryKey) { var map = GetMapping(typeof(T)); var pk = map.PK; if (pk == null) { throw new NotSupportedException("Cannot delete " + map.TableName + ": it has no PK"); } var q = string.Format("delete from \"{0}\" where \"{1}\" = ?", map.TableName, pk.Name); return Execute(q, primaryKey); } /// /// ÁöÁ¤µÈ Å×À̺íÀÇ ¸ðµç °´Ã¼¸¦ »èÁ¦ÇÕ´Ï´Ù. /// ÁÖÀÇ: ¹Ýº¹ÇÏ¿© °­Á¶ÇÏÀÚ¸é, ÀÌ ¸Þ¼Òµå´Â ÁöÁ¤µÈ Å×À̺íÀÇ ¸ðµç °´Ã¼¸¦ »èÁ¦ÇÕ´Ï´Ù. /// Á¤¸» ÀÌ ÀÛ¾÷À» ¼öÇàÇÏ·Á´Â °ÍÀÌ ¸Â´ÂÁö È®ÀÎÇϼ¼¿ä. /// /// /// »èÁ¦µÈ °´Ã¼ÀÇ ¼ö. /// /// /// »èÁ¦ÇÒ °´Ã¼ÀÇ Å¸ÀÔ. /// /// /// /// // Å×À̺íÀÇ ¸ðµç µ¥ÀÌÅÍ »èÁ¦ (ÁÖÀÇÇØ¼­ »ç¿ë) /// db.BeginTransaction(); /// try { /// // »èÁ¦ Àü È®ÀÎÀ» À§ÇÑ Ä«¿îÆ® /// int beforeCount = db.ExecuteScalar("SELECT COUNT(*) FROM Person"); /// Console.WriteLine($"»èÁ¦ Àü µ¥ÀÌÅÍ ¼ö: {beforeCount}"); /// /// // ¸ðµç Person µ¥ÀÌÅÍ »èÁ¦ /// int deleted = db.DeleteAll(); /// /// Console.WriteLine($"»èÁ¦µÈ µ¥ÀÌÅÍ ¼ö: {deleted}"); /// db.Commit(); /// } catch(Exception) { /// db.Rollback(); /// Console.WriteLine("»èÁ¦ ÀÛ¾÷ Ãë¼ÒµÊ"); /// } /// /// public int DeleteAll() { var map = GetMapping(typeof(T)); var query = string.Format("delete from \"{0}\"", map.TableName); return Execute(query); } ~SQLiteConnection() { Dispose(false); } /// /// µ¥ÀÌÅͺ£À̽º ¿¬°áÀ» Á¤¸®ÇÏ°í ´Ý½À´Ï´Ù. /// /// /// /// // using ¹®À» »ç¿ëÇÑ ÀÚµ¿ ¸®¼Ò½º Á¤¸® /// using (var db = new SQLiteConnection("database.db")) /// { /// // µ¥ÀÌÅͺ£À̽º ÀÛ¾÷ ¼öÇà /// var people = db.Query("SELECT * FROM Person"); /// /// // using ºí·ÏÀÌ ³¡³ª¸é ÀÚµ¿À¸·Î db.Dispose() È£ÃâµÊ /// } /// /// // ¼öµ¿À¸·Î ¸®¼Ò½º Á¤¸® /// var connection = new SQLiteConnection("database.db"); /// try /// { /// // ÀÛ¾÷ ¼öÇà /// connection.CreateTable(); /// } /// finally /// { /// connection.Dispose(); /// } /// /// public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected virtual void Dispose(bool disposing) { Close(); } /// /// µ¥ÀÌÅͺ£À̽º ¿¬°áÀ» ´Ý½À´Ï´Ù. ÀÌ ¸Þ¼Òµå´Â Dispose¿¡¼­µµ È£ÃâµË´Ï´Ù. /// /// /// /// // µ¥ÀÌÅͺ£À̽º ¿¬°á ´Ý±â /// db.Close(); /// /// // ¶Ç´Â using ¹®À» »ç¿ëÇÏ¿© ÀÚµ¿À¸·Î ´Ý±â /// using (var db = new SQLiteConnection("database.db")) { /// // µ¥ÀÌÅͺ£À̽º ÀÛ¾÷ ¼öÇà /// var count = db.ExecuteScalar("SELECT COUNT(*) FROM Person"); /// Console.WriteLine($"Person Å×À̺íÀÇ Çà ¼ö: {count}"); /// /// // using ºí·ÏÀÌ ³¡³ª¸é ÀÚµ¿À¸·Î db.Dispose()°¡ È£ÃâµÇ¾î ¿¬°áÀÌ ´ÝÈû /// } /// /// public void Close() { if (_open && Handle != NullHandle) { try { if (_mappings != null) { foreach (var sqlInsertCommand in _mappings.Values) { sqlInsertCommand.Dispose(); } } var r = SQLite3.Close(Handle); if (r != SQLite3.Result.OK) { string msg = SQLite3.GetErrmsg(Handle); throw SQLiteException.New(r, msg); } } finally { Handle = NullHandle; _open = false; } } } } /// /// Represents a parsed connection string. /// class SQLiteConnectionString { public string ConnectionString { get; private set; } public string DatabasePath { get; private set; } public bool StoreDateTimeAsTicks { get; private set; } #if NETFX_CORE static readonly string MetroStyleDataPath = Windows.Storage.ApplicationData.Current.LocalFolder.Path; #endif public SQLiteConnectionString(string databasePath, bool storeDateTimeAsTicks) { ConnectionString = databasePath; StoreDateTimeAsTicks = storeDateTimeAsTicks; #if NETFX_CORE DatabasePath = System.IO.Path.Combine (MetroStyleDataPath, databasePath); #else DatabasePath = databasePath; #endif } } [AttributeUsage(AttributeTargets.Class)] public class TableAttribute : Attribute { public string Name { get; set; } public TableAttribute(string name) { Name = name; } } [AttributeUsage(AttributeTargets.Property)] public class ColumnAttribute : Attribute { public string Name { get; set; } public ColumnAttribute(string name) { Name = name; } } [AttributeUsage(AttributeTargets.Property)] public class PrimaryKeyAttribute : Attribute { } [AttributeUsage(AttributeTargets.Property)] public class AutoIncrementAttribute : Attribute { } [AttributeUsage(AttributeTargets.Property)] public class IndexedAttribute : Attribute { public string Name { get; set; } public int Order { get; set; } public virtual bool Unique { get; set; } public IndexedAttribute() { } public IndexedAttribute(string name, int order) { Name = name; Order = order; } } [AttributeUsage(AttributeTargets.Property)] public class IgnoreAttribute : Attribute { } [AttributeUsage(AttributeTargets.Property)] public class UniqueAttribute : IndexedAttribute { public override bool Unique { get { return true; } set { /* throw? */ } } public UniqueAttribute() : base() { } public UniqueAttribute(string name, int order) : base(name, order) { } } [AttributeUsage(AttributeTargets.Property)] public class MaxLengthAttribute : Attribute { public int Value { get; private set; } public MaxLengthAttribute(int length) { Value = length; } } [AttributeUsage(AttributeTargets.Property)] public class CollationAttribute : Attribute { public string Value { get; private set; } public CollationAttribute(string collation) { Value = collation; } } [AttributeUsage(AttributeTargets.Property)] public class NotNullAttribute : Attribute { } public class TableMapping { public Type MappedType { get; private set; } public string TableName { get; private set; } public Column[] Columns { get; private set; } public Column PK { get; private set; } public string GetByPrimaryKeySql { get; private set; } Column _autoPk; Column[] _insertColumns; Column[] _insertOrReplaceColumns; public TableMapping(Type type, CreateFlags createFlags = CreateFlags.None) { MappedType = type; #if NETFX_CORE var tableAttr = (TableAttribute)System.Reflection.CustomAttributeExtensions .GetCustomAttribute(type.GetTypeInfo(), typeof(TableAttribute), true); #else var tableAttr = (TableAttribute)type.GetCustomAttributes(typeof(TableAttribute), true).FirstOrDefault(); #endif TableName = tableAttr != null ? tableAttr.Name : MappedType.Name; #if !NETFX_CORE var props = MappedType.GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty); #else var props = from p in MappedType.GetRuntimeProperties() where ((p.GetMethod != null && p.GetMethod.IsPublic) || (p.SetMethod != null && p.SetMethod.IsPublic) || (p.GetMethod != null && p.GetMethod.IsStatic) || (p.SetMethod != null && p.SetMethod.IsStatic)) select p; #endif var cols = new List(); foreach (var p in props) { #if !NETFX_CORE var ignore = p.GetCustomAttributes(typeof(IgnoreAttribute), true).Length > 0; #else var ignore = p.GetCustomAttributes (typeof(IgnoreAttribute), true).Count() > 0; #endif if (p.CanWrite && !ignore) { cols.Add(new Column(p, createFlags)); } } Columns = cols.ToArray(); foreach (var c in Columns) { if (c.IsAutoInc && c.IsPK) { _autoPk = c; } if (c.IsPK) { PK = c; } } HasAutoIncPK = _autoPk != null; if (PK != null) { GetByPrimaryKeySql = string.Format("select * from \"{0}\" where \"{1}\" = ?", TableName, PK.Name); } else { // People should not be calling Get/Find without a PK GetByPrimaryKeySql = string.Format("select * from \"{0}\" limit 1", TableName); } } public bool HasAutoIncPK { get; private set; } public void SetAutoIncPK(object obj, long id) { if (_autoPk != null) { _autoPk.SetValue(obj, Convert.ChangeType(id, _autoPk.ColumnType, null)); } } public Column[] InsertColumns { get { if (_insertColumns == null) { _insertColumns = Columns.Where(c => !c.IsAutoInc).ToArray(); } return _insertColumns; } } public Column[] InsertOrReplaceColumns { get { if (_insertOrReplaceColumns == null) { _insertOrReplaceColumns = Columns.ToArray(); } return _insertOrReplaceColumns; } } public Column FindColumnWithPropertyName(string propertyName) { var exact = Columns.FirstOrDefault(c => c.PropertyName == propertyName); return exact; } public Column FindColumn(string columnName) { var exact = Columns.FirstOrDefault(c => c.Name == columnName); return exact; } PreparedSqlLiteInsertCommand _insertCommand; string _insertCommandExtra; public PreparedSqlLiteInsertCommand GetInsertCommand(SQLiteConnection conn, string extra) { if (_insertCommand == null) { _insertCommand = CreateInsertCommand(conn, extra); _insertCommandExtra = extra; } else if (_insertCommandExtra != extra) { _insertCommand.Dispose(); _insertCommand = CreateInsertCommand(conn, extra); _insertCommandExtra = extra; } return _insertCommand; } PreparedSqlLiteInsertCommand CreateInsertCommand(SQLiteConnection conn, string extra) { var cols = InsertColumns; string insertSql; if (!cols.Any() && Columns.Count() == 1 && Columns[0].IsAutoInc) { insertSql = string.Format("insert {1} into \"{0}\" default values", TableName, extra); } else { var replacing = string.Compare(extra, "OR REPLACE", StringComparison.OrdinalIgnoreCase) == 0; if (replacing) { cols = InsertOrReplaceColumns; } insertSql = string.Format("insert {3} into \"{0}\"({1}) values ({2})", TableName, string.Join(",", (from c in cols select "\"" + c.Name + "\"").ToArray()), string.Join(",", (from c in cols select "?").ToArray()), extra); } var insertCommand = new PreparedSqlLiteInsertCommand(conn); insertCommand.CommandText = insertSql; return insertCommand; } protected internal void Dispose() { if (_insertCommand != null) { _insertCommand.Dispose(); _insertCommand = null; } } public class Column { PropertyInfo _prop; public string Name { get; private set; } public string PropertyName { get { return _prop.Name; } } public Type ColumnType { get; private set; } public string Collation { get; private set; } public bool IsAutoInc { get; private set; } public bool IsAutoGuid { get; private set; } public bool IsPK { get; private set; } public IEnumerable Indices { get; set; } public bool IsNullable { get; private set; } public int? MaxStringLength { get; private set; } public Column(PropertyInfo prop, CreateFlags createFlags = CreateFlags.None) { var colAttr = (ColumnAttribute)prop.GetCustomAttributes(typeof(ColumnAttribute), true).FirstOrDefault(); _prop = prop; Name = colAttr == null ? prop.Name : colAttr.Name; //If this type is Nullable then Nullable.GetUnderlyingType returns the T, otherwise it returns null, so get the actual type instead ColumnType = Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType; Collation = Orm.Collation(prop); IsPK = Orm.IsPK(prop) || (((createFlags & CreateFlags.ImplicitPK) == CreateFlags.ImplicitPK) && string.Compare(prop.Name, Orm.ImplicitPkName, StringComparison.OrdinalIgnoreCase) == 0); var isAuto = Orm.IsAutoInc(prop) || (IsPK && ((createFlags & CreateFlags.AutoIncPK) == CreateFlags.AutoIncPK)); IsAutoGuid = isAuto && ColumnType == typeof(Guid); IsAutoInc = isAuto && !IsAutoGuid; Indices = Orm.GetIndices(prop); if (!Indices.Any() && !IsPK && ((createFlags & CreateFlags.ImplicitIndex) == CreateFlags.ImplicitIndex) && Name.EndsWith(Orm.ImplicitIndexSuffix, StringComparison.OrdinalIgnoreCase) ) { Indices = new IndexedAttribute[] { new IndexedAttribute() }; } IsNullable = !(IsPK || Orm.IsMarkedNotNull(prop)); MaxStringLength = Orm.MaxStringLength(prop); } public void SetValue(object obj, object val) { _prop.SetValue(obj, val, null); } public object GetValue(object obj) { return _prop.GetGetMethod().Invoke(obj, null); } } } public static class Orm { public const int DefaultMaxStringLength = 140; public const string ImplicitPkName = "Id"; public const string ImplicitIndexSuffix = "Id"; public static string SqlDecl(TableMapping.Column p, bool storeDateTimeAsTicks) { string decl = "\"" + p.Name + "\" " + SqlType(p, storeDateTimeAsTicks) + " "; if (p.IsPK) { decl += "primary key "; } if (p.IsAutoInc) { decl += "autoincrement "; } if (!p.IsNullable) { decl += "not null "; } if (!string.IsNullOrEmpty(p.Collation)) { decl += "collate " + p.Collation + " "; } return decl; } public static string SqlType(TableMapping.Column p, bool storeDateTimeAsTicks) { var clrType = p.ColumnType; if (clrType == typeof(Boolean) || clrType == typeof(Byte) || clrType == typeof(UInt16) || clrType == typeof(SByte) || clrType == typeof(Int16) || clrType == typeof(Int32)) { return "integer"; } else if (clrType == typeof(UInt32) || clrType == typeof(Int64)) { return "bigint"; } else if (clrType == typeof(Single) || clrType == typeof(Double) || clrType == typeof(Decimal)) { return "float"; } else if (clrType == typeof(String)) { int? len = p.MaxStringLength; if (len.HasValue) return "varchar(" + len.Value + ")"; return "varchar"; } else if (clrType == typeof(TimeSpan)) { return "bigint"; } else if (clrType == typeof(DateTime)) { return storeDateTimeAsTicks ? "bigint" : "datetime"; } else if (clrType == typeof(DateTimeOffset)) { return "bigint"; #if !NETFX_CORE } else if (clrType.IsEnum) { #else } else if (clrType.GetTypeInfo().IsEnum) { #endif return "integer"; } else if (clrType == typeof(byte[])) { return "blob"; } else if (clrType == typeof(Guid)) { return "varchar(36)"; } else { throw new NotSupportedException("Don't know about " + clrType); } } public static bool IsPK(MemberInfo p) { var attrs = p.GetCustomAttributes(typeof(PrimaryKeyAttribute), true); #if !NETFX_CORE return attrs.Length > 0; #else return attrs.Count() > 0; #endif } public static string Collation(MemberInfo p) { var attrs = p.GetCustomAttributes(typeof(CollationAttribute), true); #if !NETFX_CORE if (attrs.Length > 0) { return ((CollationAttribute)attrs[0]).Value; #else if (attrs.Count() > 0) { return ((CollationAttribute)attrs.First()).Value; #endif } else { return string.Empty; } } public static bool IsAutoInc(MemberInfo p) { var attrs = p.GetCustomAttributes(typeof(AutoIncrementAttribute), true); #if !NETFX_CORE return attrs.Length > 0; #else return attrs.Count() > 0; #endif } public static IEnumerable GetIndices(MemberInfo p) { var attrs = p.GetCustomAttributes(typeof(IndexedAttribute), true); return attrs.Cast(); } public static int? MaxStringLength(PropertyInfo p) { var attrs = p.GetCustomAttributes(typeof(MaxLengthAttribute), true); #if !NETFX_CORE if (attrs.Length > 0) return ((MaxLengthAttribute)attrs[0]).Value; #else if (attrs.Count() > 0) return ((MaxLengthAttribute)attrs.First()).Value; #endif return null; } public static bool IsMarkedNotNull(MemberInfo p) { var attrs = p.GetCustomAttributes(typeof(NotNullAttribute), true); #if !NETFX_CORE return attrs.Length > 0; #else return attrs.Count() > 0; #endif } } public partial class SQLiteCommand { SQLiteConnection _conn; private List _bindings; public string CommandText { get; set; } internal SQLiteCommand(SQLiteConnection conn) { _conn = conn; _bindings = new List(); CommandText = ""; } public int ExecuteNonQuery() { if (_conn.Trace) { _conn.InvokeTrace("Executing: " + this); } var r = SQLite3.Result.OK; lock (_conn.SyncObject) { var stmt = Prepare(); r = SQLite3.Step(stmt); Finalize(stmt); } if (r == SQLite3.Result.Done) { int rowsAffected = SQLite3.Changes(_conn.Handle); return rowsAffected; } else if (r == SQLite3.Result.Error) { string msg = SQLite3.GetErrmsg(_conn.Handle); throw SQLiteException.New(r, msg); } else if (r == SQLite3.Result.Constraint) { if (SQLite3.ExtendedErrCode(_conn.Handle) == SQLite3.ExtendedResult.ConstraintNotNull) { throw NotNullConstraintViolationException.New(r, SQLite3.GetErrmsg(_conn.Handle)); } } throw SQLiteException.New(r, r.ToString()); } public IEnumerable ExecuteDeferredQuery() { return ExecuteDeferredQuery(_conn.GetMapping(typeof(T))); } public List ExecuteQuery() { return ExecuteDeferredQuery(_conn.GetMapping(typeof(T))).ToList(); } public List ExecuteQuery(TableMapping map) { return ExecuteDeferredQuery(map).ToList(); } /// /// Invoked every time an instance is loaded from the database. /// /// /// The newly created object. /// /// /// This can be overridden in combination with the /// method to hook into the life-cycle of objects. /// /// Type safety is not possible because MonoTouch does not support virtual generic methods. /// protected virtual void OnInstanceCreated(object obj) { // Can be overridden. } public IEnumerable ExecuteDeferredQuery(TableMapping map) { if (_conn.Trace) { _conn.InvokeTrace("Executing Query: " + this); } lock (_conn.SyncObject) { var stmt = Prepare(); try { var cols = new TableMapping.Column[SQLite3.ColumnCount(stmt)]; for (int i = 0; i < cols.Length; i++) { var name = SQLite3.ColumnName16(stmt, i); cols[i] = map.FindColumn(name); } while (SQLite3.Step(stmt) == SQLite3.Result.Row) { var obj = Activator.CreateInstance(map.MappedType); for (int i = 0; i < cols.Length; i++) { if (cols[i] == null) continue; var colType = SQLite3.ColumnType(stmt, i); var val = ReadCol(stmt, i, colType, cols[i].ColumnType); cols[i].SetValue(obj, val); } OnInstanceCreated(obj); yield return (T)obj; } } finally { SQLite3.Finalize(stmt); } } } public T ExecuteScalar() { if (_conn.Trace) { _conn.InvokeTrace("Executing Query: " + this); } T val = default(T); lock (_conn.SyncObject) { var stmt = Prepare(); try { var r = SQLite3.Step(stmt); if (r == SQLite3.Result.Row) { var colType = SQLite3.ColumnType(stmt, 0); val = (T)ReadCol(stmt, 0, colType, typeof(T)); } else if (r == SQLite3.Result.Done) { } else { throw SQLiteException.New(r, SQLite3.GetErrmsg(_conn.Handle)); } } finally { Finalize(stmt); } } return val; } public void Bind(string name, object val) { _bindings.Add(new Binding { Name = name, Value = val }); } public void Bind(object val) { Bind(null, val); } public override string ToString() { var parts = new string[1 + _bindings.Count]; parts[0] = CommandText; var i = 1; foreach (var b in _bindings) { parts[i] = string.Format(" {0}: {1}", i - 1, b.Value); i++; } return string.Join(Environment.NewLine, parts); } Sqlite3Statement Prepare() { var stmt = SQLite3.Prepare2(_conn.Handle, CommandText); BindAll(stmt); return stmt; } void Finalize(Sqlite3Statement stmt) { SQLite3.Finalize(stmt); } void BindAll(Sqlite3Statement stmt) { int nextIdx = 1; foreach (var b in _bindings) { if (b.Name != null) { b.Index = SQLite3.BindParameterIndex(stmt, b.Name); } else { b.Index = nextIdx++; } BindParameter(stmt, b.Index, b.Value, _conn.StoreDateTimeAsTicks); } } internal static IntPtr NegativePointer = new IntPtr(-1); internal static void BindParameter(Sqlite3Statement stmt, int index, object value, bool storeDateTimeAsTicks) { if (value == null) { SQLite3.BindNull(stmt, index); } else { if (value is Int32) { SQLite3.BindInt(stmt, index, (int)value); } else if (value is String) { SQLite3.BindText(stmt, index, (string)value, -1, NegativePointer); } else if (value is Byte || value is UInt16 || value is SByte || value is Int16) { SQLite3.BindInt(stmt, index, Convert.ToInt32(value)); } else if (value is Boolean) { SQLite3.BindInt(stmt, index, (bool)value ? 1 : 0); } else if (value is UInt32 || value is Int64) { SQLite3.BindInt64(stmt, index, Convert.ToInt64(value)); } else if (value is Single || value is Double || value is Decimal) { SQLite3.BindDouble(stmt, index, Convert.ToDouble(value)); } else if (value is TimeSpan) { SQLite3.BindInt64(stmt, index, ((TimeSpan)value).Ticks); } else if (value is DateTime) { if (storeDateTimeAsTicks) { SQLite3.BindInt64(stmt, index, ((DateTime)value).Ticks); } else { SQLite3.BindText(stmt, index, ((DateTime)value).ToString("yyyy-MM-dd HH:mm:ss"), -1, NegativePointer); } } else if (value is DateTimeOffset) { SQLite3.BindInt64(stmt, index, ((DateTimeOffset)value).UtcTicks); #if !NETFX_CORE } else if (value.GetType().IsEnum) { #else } else if (value.GetType().GetTypeInfo().IsEnum) { #endif SQLite3.BindInt(stmt, index, Convert.ToInt32(value)); } else if (value is byte[]) { SQLite3.BindBlob(stmt, index, (byte[])value, ((byte[])value).Length, NegativePointer); } else if (value is Guid) { SQLite3.BindText(stmt, index, ((Guid)value).ToString(), 72, NegativePointer); } else { throw new NotSupportedException("Cannot store type: " + value.GetType()); } } } class Binding { public string Name { get; set; } public object Value { get; set; } public int Index { get; set; } } object ReadCol(Sqlite3Statement stmt, int index, SQLite3.ColType type, Type clrType) { if (type == SQLite3.ColType.Null) { return null; } else { if (clrType == typeof(String)) { return SQLite3.ColumnString(stmt, index); } else if (clrType == typeof(Int32)) { return (int)SQLite3.ColumnInt(stmt, index); } else if (clrType == typeof(Boolean)) { return SQLite3.ColumnInt(stmt, index) == 1; } else if (clrType == typeof(double)) { return SQLite3.ColumnDouble(stmt, index); } else if (clrType == typeof(float)) { return (float)SQLite3.ColumnDouble(stmt, index); } else if (clrType == typeof(TimeSpan)) { return new TimeSpan(SQLite3.ColumnInt64(stmt, index)); } else if (clrType == typeof(DateTime)) { if (_conn.StoreDateTimeAsTicks) { return new DateTime(SQLite3.ColumnInt64(stmt, index)); } else { var text = SQLite3.ColumnString(stmt, index); return DateTime.Parse(text); } } else if (clrType == typeof(DateTimeOffset)) { return new DateTimeOffset(SQLite3.ColumnInt64(stmt, index), TimeSpan.Zero); #if !NETFX_CORE } else if (clrType.IsEnum) { #else } else if (clrType.GetTypeInfo().IsEnum) { #endif return SQLite3.ColumnInt(stmt, index); } else if (clrType == typeof(Int64)) { return SQLite3.ColumnInt64(stmt, index); } else if (clrType == typeof(UInt32)) { return (uint)SQLite3.ColumnInt64(stmt, index); } else if (clrType == typeof(decimal)) { return (decimal)SQLite3.ColumnDouble(stmt, index); } else if (clrType == typeof(Byte)) { return (byte)SQLite3.ColumnInt(stmt, index); } else if (clrType == typeof(UInt16)) { return (ushort)SQLite3.ColumnInt(stmt, index); } else if (clrType == typeof(Int16)) { return (short)SQLite3.ColumnInt(stmt, index); } else if (clrType == typeof(sbyte)) { return (sbyte)SQLite3.ColumnInt(stmt, index); } else if (clrType == typeof(byte[])) { return SQLite3.ColumnByteArray(stmt, index); } else if (clrType == typeof(Guid)) { var text = SQLite3.ColumnString(stmt, index); return new Guid(text); } else { throw new NotSupportedException("Don't know how to read " + clrType); } } } } /// /// Since the insert never changed, we only need to prepare once. /// public class PreparedSqlLiteInsertCommand : IDisposable { public bool Initialized { get; set; } protected SQLiteConnection Connection { get; set; } public string CommandText { get; set; } protected Sqlite3Statement Statement { get; set; } internal static readonly Sqlite3Statement NullStatement = default(Sqlite3Statement); internal PreparedSqlLiteInsertCommand(SQLiteConnection conn) { Connection = conn; } public int ExecuteNonQuery(object[] source) { if (Connection.Trace) { Connection.InvokeTrace("Executing: " + CommandText); } var r = SQLite3.Result.OK; if (!Initialized) { Statement = Prepare(); Initialized = true; } //bind the values. if (source != null) { for (int i = 0; i < source.Length; i++) { SQLiteCommand.BindParameter(Statement, i + 1, source[i], Connection.StoreDateTimeAsTicks); } } r = SQLite3.Step(Statement); if (r == SQLite3.Result.Done) { int rowsAffected = SQLite3.Changes(Connection.Handle); SQLite3.Reset(Statement); return rowsAffected; } else if (r == SQLite3.Result.Error) { string msg = SQLite3.GetErrmsg(Connection.Handle); SQLite3.Reset(Statement); throw SQLiteException.New(r, msg); } else if (r == SQLite3.Result.Constraint && SQLite3.ExtendedErrCode(Connection.Handle) == SQLite3.ExtendedResult.ConstraintNotNull) { SQLite3.Reset(Statement); throw NotNullConstraintViolationException.New(r, SQLite3.GetErrmsg(Connection.Handle)); } else { SQLite3.Reset(Statement); throw SQLiteException.New(r, r.ToString()); } } protected virtual Sqlite3Statement Prepare() { var stmt = SQLite3.Prepare2(Connection.Handle, CommandText); return stmt; } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } private void Dispose(bool disposing) { if (Statement != NullStatement) { try { SQLite3.Finalize(Statement); } finally { Statement = NullStatement; Connection = null; } } } ~PreparedSqlLiteInsertCommand() { Dispose(false); } } public abstract class BaseTableQuery { protected class Ordering { public string ColumnName { get; set; } public bool Ascending { get; set; } } } public class TableQuery : BaseTableQuery, IEnumerable { public SQLiteConnection Connection { get; private set; } public TableMapping Table { get; private set; } Expression _where; List _orderBys; int? _limit; int? _offset; BaseTableQuery _joinInner; Expression _joinInnerKeySelector; BaseTableQuery _joinOuter; Expression _joinOuterKeySelector; Expression _joinSelector; Expression _selector; TableQuery(SQLiteConnection conn, TableMapping table) { Connection = conn; Table = table; } public TableQuery(SQLiteConnection conn) { Connection = conn; Table = Connection.GetMapping(typeof(T)); } public TableQuery Clone() { var q = new TableQuery(Connection, Table); q._where = _where; q._deferred = _deferred; if (_orderBys != null) { q._orderBys = new List(_orderBys); } q._limit = _limit; q._offset = _offset; q._joinInner = _joinInner; q._joinInnerKeySelector = _joinInnerKeySelector; q._joinOuter = _joinOuter; q._joinOuterKeySelector = _joinOuterKeySelector; q._joinSelector = _joinSelector; q._selector = _selector; return q; } /// /// ÁöÁ¤µÈ Á¶°Ç½Ä¿¡ µû¶ó Å×À̺í Äõ¸®¸¦ ÇÊÅ͸µÇÕ´Ï´Ù. /// /// /// °á°ú¸¦ ÇÊÅ͸µÇÏ´Â Á¶°Ç½Ä. /// /// /// ÇÊÅ͸µµÈ TableQuery °´Ã¼. /// /// /// /// // Á¶°Ç½ÄÀ¸·Î µ¥ÀÌÅÍ ÇÊÅ͸µ /// var adults = db.Table() /// .Where(p => p.Age >= 18); /// /// // ¿©·¯ Á¶°Ç üÀÌ´× /// var adultMales = db.Table() /// .Where(p => p.Age >= 18) /// .Where(p => p.Gender == "³²¼º"); /// /// foreach (var person in adults) { /// Console.WriteLine($"¼ºÀÎ: {person.Name}, {person.Age}¼¼"); /// } /// /// public TableQuery Where(Expression> predExpr) { if (predExpr.NodeType == ExpressionType.Lambda) { var lambda = (LambdaExpression)predExpr; var pred = lambda.Body; var q = Clone(); q.AddWhere(pred); return q; } else { throw new NotSupportedException("Must be a predicate"); } } public TableQuery Take(int n) { var q = Clone(); q._limit = n; return q; } public TableQuery Skip(int n) { var q = Clone(); q._offset = n; return q; } public T ElementAt(int index) { return Skip(index).Take(1).First(); } bool _deferred; public TableQuery Deferred() { var q = Clone(); q._deferred = true; return q; } /// /// ÁöÁ¤µÈ ¼Ó¼º¿¡ µû¶ó Å×À̺í Äõ¸® °á°ú¸¦ ¿À¸§Â÷¼øÀ¸·Î Á¤·ÄÇÕ´Ï´Ù. /// /// Á¤·Ä ±âÁØ ¼Ó¼ºÀÇ Å¸ÀÔ /// Á¤·Ä ±âÁØ ¼Ó¼ºÀ» ¼±ÅÃÇÏ´Â ½Ä /// Á¤·ÄµÈ Äõ¸® °´Ã¼ /// /// /// // ³ªÀ̼øÀ¸·Î Á¤·Ä /// var peopleByAge = db.Table().OrderBy(p => p.Age); /// /// // À̸§¼øÀ¸·Î Á¤·Ä /// var peopleByName = db.Table().OrderBy(p => p.Name); /// /// foreach (var person in peopleByAge) { /// Console.WriteLine($"{person.Name}, {person.Age}¼¼"); /// } /// /// public TableQuery OrderBy(Expression> orderExpr) { return AddOrderBy(orderExpr, true); } /// /// ÁöÁ¤µÈ ¼Ó¼º¿¡ µû¶ó Å×À̺í Äõ¸® °á°ú¸¦ ³»¸²Â÷¼øÀ¸·Î Á¤·ÄÇÕ´Ï´Ù. /// /// Á¤·Ä ±âÁØ ¼Ó¼ºÀÇ Å¸ÀÔ /// Á¤·Ä ±âÁØ ¼Ó¼ºÀ» ¼±ÅÃÇÏ´Â ½Ä /// Á¤·ÄµÈ Äõ¸® °´Ã¼ /// /// /// // ³ªÀÌ ³»¸²Â÷¼øÀ¸·Î Á¤·Ä /// var olderFirst = db.Table().OrderByDescending(p => p.Age); /// /// // À̸§ ³»¸²Â÷¼øÀ¸·Î Á¤·Ä /// var reverseAlpha = db.Table().OrderByDescending(p => p.Name); /// /// foreach (var person in olderFirst) { /// Console.WriteLine($"{person.Name}, {person.Age}¼¼"); /// } /// /// public TableQuery OrderByDescending(Expression> orderExpr) { return AddOrderBy(orderExpr, false); } public TableQuery ThenBy(Expression> orderExpr) { return AddOrderBy(orderExpr, true); } public TableQuery ThenByDescending(Expression> orderExpr) { return AddOrderBy(orderExpr, false); } private TableQuery AddOrderBy(Expression> orderExpr, bool asc) { if (orderExpr.NodeType == ExpressionType.Lambda) { var lambda = (LambdaExpression)orderExpr; MemberExpression mem = null; var unary = lambda.Body as UnaryExpression; if (unary != null && unary.NodeType == ExpressionType.Convert) { mem = unary.Operand as MemberExpression; } else { mem = lambda.Body as MemberExpression; } if (mem != null && (mem.Expression.NodeType == ExpressionType.Parameter)) { var q = Clone(); if (q._orderBys == null) { q._orderBys = new List(); } q._orderBys.Add(new Ordering { ColumnName = Table.FindColumnWithPropertyName(mem.Member.Name).Name, Ascending = asc }); return q; } else { throw new NotSupportedException("Order By does not support: " + orderExpr); } } else { throw new NotSupportedException("Must be a predicate"); } } private void AddWhere(Expression pred) { if (_where == null) { _where = pred; } else { _where = Expression.AndAlso(_where, pred); } } public TableQuery Join( TableQuery inner, Expression> outerKeySelector, Expression> innerKeySelector, Expression> resultSelector) { var q = new TableQuery(Connection, Connection.GetMapping(typeof(TResult))) { _joinOuter = this, _joinOuterKeySelector = outerKeySelector, _joinInner = inner, _joinInnerKeySelector = innerKeySelector, _joinSelector = resultSelector, }; return q; } public TableQuery Select(Expression> selector) { var q = Clone(); q._selector = selector; return q; } private SQLiteCommand GenerateCommand(string selectionList) { if (_joinInner != null && _joinOuter != null) { throw new NotSupportedException("Joins are not supported."); } else { var cmdText = "select " + selectionList + " from \"" + Table.TableName + "\""; var args = new List(); if (_where != null) { var w = CompileExpr(_where, args); cmdText += " where " + w.CommandText; } if ((_orderBys != null) && (_orderBys.Count > 0)) { var t = string.Join(", ", _orderBys.Select(o => "\"" + o.ColumnName + "\"" + (o.Ascending ? "" : " desc")).ToArray()); cmdText += " order by " + t; } if (_limit.HasValue) { cmdText += " limit " + _limit.Value; } if (_offset.HasValue) { if (!_limit.HasValue) { cmdText += " limit -1 "; } cmdText += " offset " + _offset.Value; } return Connection.CreateCommand(cmdText, args.ToArray()); } } class CompileResult { public string CommandText { get; set; } public object Value { get; set; } } private CompileResult CompileExpr(Expression expr, List queryArgs) { if (expr == null) { throw new NotSupportedException("Expression is NULL"); } else if (expr is BinaryExpression) { var bin = (BinaryExpression)expr; var leftr = CompileExpr(bin.Left, queryArgs); var rightr = CompileExpr(bin.Right, queryArgs); //If either side is a parameter and is null, then handle the other side specially (for "is null"/"is not null") string text; if (leftr.CommandText == "?" && leftr.Value == null) text = CompileNullBinaryExpression(bin, rightr); else if (rightr.CommandText == "?" && rightr.Value == null) text = CompileNullBinaryExpression(bin, leftr); else text = "(" + leftr.CommandText + " " + GetSqlName(bin) + " " + rightr.CommandText + ")"; return new CompileResult { CommandText = text }; } else if (expr.NodeType == ExpressionType.Call) { var call = (MethodCallExpression)expr; var args = new CompileResult[call.Arguments.Count]; var obj = call.Object != null ? CompileExpr(call.Object, queryArgs) : null; for (var i = 0; i < args.Length; i++) { args[i] = CompileExpr(call.Arguments[i], queryArgs); } var sqlCall = ""; if (call.Method.Name == "Like" && args.Length == 2) { sqlCall = "(" + args[0].CommandText + " like " + args[1].CommandText + ")"; } else if (call.Method.Name == "Contains" && args.Length == 2) { sqlCall = "(" + args[1].CommandText + " in " + args[0].CommandText + ")"; } else if (call.Method.Name == "Contains" && args.Length == 1) { if (call.Object != null && call.Object.Type == typeof(string)) { sqlCall = "(" + obj.CommandText + " like ('%' || " + args[0].CommandText + " || '%'))"; } else { sqlCall = "(" + args[0].CommandText + " in " + obj.CommandText + ")"; } } else if (call.Method.Name == "StartsWith" && args.Length == 1) { sqlCall = "(" + obj.CommandText + " like (" + args[0].CommandText + " || '%'))"; } else if (call.Method.Name == "EndsWith" && args.Length == 1) { sqlCall = "(" + obj.CommandText + " like ('%' || " + args[0].CommandText + "))"; } else if (call.Method.Name == "Equals" && args.Length == 1) { sqlCall = "(" + obj.CommandText + " = (" + args[0].CommandText + "))"; } else if (call.Method.Name == "ToLower") { sqlCall = "(lower(" + obj.CommandText + "))"; } else if (call.Method.Name == "ToUpper") { sqlCall = "(upper(" + obj.CommandText + "))"; } else { sqlCall = call.Method.Name.ToLower() + "(" + string.Join(",", args.Select(a => a.CommandText).ToArray()) + ")"; } return new CompileResult { CommandText = sqlCall }; } else if (expr.NodeType == ExpressionType.Constant) { var c = (ConstantExpression)expr; queryArgs.Add(c.Value); return new CompileResult { CommandText = "?", Value = c.Value }; } else if (expr.NodeType == ExpressionType.Convert) { var u = (UnaryExpression)expr; var ty = u.Type; var valr = CompileExpr(u.Operand, queryArgs); return new CompileResult { CommandText = valr.CommandText, Value = valr.Value != null ? ConvertTo(valr.Value, ty) : null }; } else if (expr.NodeType == ExpressionType.Not) { var u = (UnaryExpression)expr; var ty = u.Type; var valr = CompileExpr(u.Operand, queryArgs); return new CompileResult { CommandText = "NOT " + valr.CommandText, Value = valr.Value != null ? valr.Value : null }; } else if (expr.NodeType == ExpressionType.MemberAccess) { var mem = (MemberExpression)expr; if (mem.Expression != null && mem.Expression.NodeType == ExpressionType.Parameter) { // // This is a column of our table, output just the column name // Need to translate it if that column name is mapped // var columnName = Table.FindColumnWithPropertyName(mem.Member.Name).Name; return new CompileResult { CommandText = "\"" + columnName + "\"" }; } else { object obj = null; if (mem.Expression != null) { var r = CompileExpr(mem.Expression, queryArgs); if (r.Value == null) { throw new NotSupportedException("Member access failed to compile expression"); } if (r.CommandText == "?") { queryArgs.RemoveAt(queryArgs.Count - 1); } obj = r.Value; } // // Get the member value // object val = null; #if !NETFX_CORE if (mem.Member.MemberType == MemberTypes.Property) { #else if (mem.Member is PropertyInfo) { #endif var m = (PropertyInfo)mem.Member; //val = m.GetValue (obj, null); val = m.GetGetMethod().Invoke(obj, null); #if !NETFX_CORE } else if (mem.Member.MemberType == MemberTypes.Field) { #else } else if (mem.Member is FieldInfo) { #endif #if SILVERLIGHT val = Expression.Lambda (expr).Compile ().DynamicInvoke (); #else var m = (FieldInfo)mem.Member; val = m.GetValue(obj); #endif } else { #if !NETFX_CORE throw new NotSupportedException("MemberExpr: " + mem.Member.MemberType); #else throw new NotSupportedException ("MemberExpr: " + mem.Member.DeclaringType); #endif } // // Work special magic for enumerables // if (val != null && val is System.Collections.IEnumerable && !(val is string) && !(val is System.Collections.Generic.IEnumerable)) { var sb = new System.Text.StringBuilder(); sb.Append("("); var head = ""; foreach (var a in (System.Collections.IEnumerable)val) { queryArgs.Add(a); sb.Append(head); sb.Append("?"); head = ","; } sb.Append(")"); return new CompileResult { CommandText = sb.ToString(), Value = val }; } else { queryArgs.Add(val); return new CompileResult { CommandText = "?", Value = val }; } } } throw new NotSupportedException("Cannot compile: " + expr.NodeType.ToString()); } static object ConvertTo(object obj, Type t) { Type nut = Nullable.GetUnderlyingType(t); if (nut != null) { if (obj == null) return null; return Convert.ChangeType(obj, nut); } else { return Convert.ChangeType(obj, t); } } /// /// Compiles a BinaryExpression where one of the parameters is null. /// /// The non-null parameter private string CompileNullBinaryExpression(BinaryExpression expression, CompileResult parameter) { if (expression.NodeType == ExpressionType.Equal) return "(" + parameter.CommandText + " is ?)"; else if (expression.NodeType == ExpressionType.NotEqual) return "(" + parameter.CommandText + " is not ?)"; else throw new NotSupportedException("Cannot compile Null-BinaryExpression with type " + expression.NodeType.ToString()); } string GetSqlName(Expression expr) { var n = expr.NodeType; if (n == ExpressionType.GreaterThan) return ">"; else if (n == ExpressionType.GreaterThanOrEqual) { return ">="; } else if (n == ExpressionType.LessThan) { return "<"; } else if (n == ExpressionType.LessThanOrEqual) { return "<="; } else if (n == ExpressionType.And) { return "&"; } else if (n == ExpressionType.AndAlso) { return "and"; } else if (n == ExpressionType.Or) { return "|"; } else if (n == ExpressionType.OrElse) { return "or"; } else if (n == ExpressionType.Equal) { return "="; } else if (n == ExpressionType.NotEqual) { return "!="; } else { throw new NotSupportedException("Cannot get SQL for: " + n); } } public int Count() { return GenerateCommand("count(*)").ExecuteScalar(); } public int Count(Expression> predExpr) { return Where(predExpr).Count(); } public IEnumerator GetEnumerator() { if (!_deferred) return GenerateCommand("*").ExecuteQuery().GetEnumerator(); return GenerateCommand("*").ExecuteDeferredQuery().GetEnumerator(); } System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return GetEnumerator(); } public T First() { var query = Take(1); return query.ToList().First(); } public T FirstOrDefault() { var query = Take(1); return query.ToList().FirstOrDefault(); } } public static class SQLite3 { public enum Result : int { OK = 0, Error = 1, Internal = 2, Perm = 3, Abort = 4, Busy = 5, Locked = 6, NoMem = 7, ReadOnly = 8, Interrupt = 9, IOError = 10, Corrupt = 11, NotFound = 12, Full = 13, CannotOpen = 14, LockErr = 15, Empty = 16, SchemaChngd = 17, TooBig = 18, Constraint = 19, Mismatch = 20, Misuse = 21, NotImplementedLFS = 22, AccessDenied = 23, Format = 24, Range = 25, NonDBFile = 26, Notice = 27, Warning = 28, Row = 100, Done = 101 } public enum ExtendedResult : int { IOErrorRead = (Result.IOError | (1 << 8)), IOErrorShortRead = (Result.IOError | (2 << 8)), IOErrorWrite = (Result.IOError | (3 << 8)), IOErrorFsync = (Result.IOError | (4 << 8)), IOErrorDirFSync = (Result.IOError | (5 << 8)), IOErrorTruncate = (Result.IOError | (6 << 8)), IOErrorFStat = (Result.IOError | (7 << 8)), IOErrorUnlock = (Result.IOError | (8 << 8)), IOErrorRdlock = (Result.IOError | (9 << 8)), IOErrorDelete = (Result.IOError | (10 << 8)), IOErrorBlocked = (Result.IOError | (11 << 8)), IOErrorNoMem = (Result.IOError | (12 << 8)), IOErrorAccess = (Result.IOError | (13 << 8)), IOErrorCheckReservedLock = (Result.IOError | (14 << 8)), IOErrorLock = (Result.IOError | (15 << 8)), IOErrorClose = (Result.IOError | (16 << 8)), IOErrorDirClose = (Result.IOError | (17 << 8)), IOErrorSHMOpen = (Result.IOError | (18 << 8)), IOErrorSHMSize = (Result.IOError | (19 << 8)), IOErrorSHMLock = (Result.IOError | (20 << 8)), IOErrorSHMMap = (Result.IOError | (21 << 8)), IOErrorSeek = (Result.IOError | (22 << 8)), IOErrorDeleteNoEnt = (Result.IOError | (23 << 8)), IOErrorMMap = (Result.IOError | (24 << 8)), LockedSharedcache = (Result.Locked | (1 << 8)), BusyRecovery = (Result.Busy | (1 << 8)), CannottOpenNoTempDir = (Result.CannotOpen | (1 << 8)), CannotOpenIsDir = (Result.CannotOpen | (2 << 8)), CannotOpenFullPath = (Result.CannotOpen | (3 << 8)), CorruptVTab = (Result.Corrupt | (1 << 8)), ReadonlyRecovery = (Result.ReadOnly | (1 << 8)), ReadonlyCannotLock = (Result.ReadOnly | (2 << 8)), ReadonlyRollback = (Result.ReadOnly | (3 << 8)), AbortRollback = (Result.Abort | (2 << 8)), ConstraintCheck = (Result.Constraint | (1 << 8)), ConstraintCommitHook = (Result.Constraint | (2 << 8)), ConstraintForeignKey = (Result.Constraint | (3 << 8)), ConstraintFunction = (Result.Constraint | (4 << 8)), ConstraintNotNull = (Result.Constraint | (5 << 8)), ConstraintPrimaryKey = (Result.Constraint | (6 << 8)), ConstraintTrigger = (Result.Constraint | (7 << 8)), ConstraintUnique = (Result.Constraint | (8 << 8)), ConstraintVTab = (Result.Constraint | (9 << 8)), NoticeRecoverWAL = (Result.Notice | (1 << 8)), NoticeRecoverRollback = (Result.Notice | (2 << 8)) } public enum ConfigOption : int { SingleThread = 1, MultiThread = 2, Serialized = 3 } #if !USE_CSHARP_SQLITE && !USE_WP8_NATIVE_SQLITE [DllImport("sqlite3", EntryPoint = "sqlite3_open", CallingConvention = CallingConvention.Cdecl)] public static extern Result Open([MarshalAs(UnmanagedType.LPStr)] string filename, out IntPtr db); [DllImport("sqlite3", EntryPoint = "sqlite3_open_v2", CallingConvention = CallingConvention.Cdecl)] public static extern Result Open([MarshalAs(UnmanagedType.LPStr)] string filename, out IntPtr db, int flags, IntPtr zvfs); [DllImport("sqlite3", EntryPoint = "sqlite3_open_v2", CallingConvention = CallingConvention.Cdecl)] public static extern Result Open(byte[] filename, out IntPtr db, int flags, IntPtr zvfs); [DllImport("sqlite3", EntryPoint = "sqlite3_open16", CallingConvention = CallingConvention.Cdecl)] public static extern Result Open16([MarshalAs(UnmanagedType.LPWStr)] string filename, out IntPtr db); [DllImport("sqlite3", EntryPoint = "sqlite3_enable_load_extension", CallingConvention = CallingConvention.Cdecl)] public static extern Result EnableLoadExtension(IntPtr db, int onoff); [DllImport("sqlite3", EntryPoint = "sqlite3_close", CallingConvention = CallingConvention.Cdecl)] public static extern Result Close(IntPtr db); [DllImport("sqlite3", EntryPoint = "sqlite3_initialize", CallingConvention = CallingConvention.Cdecl)] public static extern Result Initialize(); [DllImport("sqlite3", EntryPoint = "sqlite3_shutdown", CallingConvention = CallingConvention.Cdecl)] public static extern Result Shutdown(); [DllImport("sqlite3", EntryPoint = "sqlite3_config", CallingConvention = CallingConvention.Cdecl)] public static extern Result Config(ConfigOption option); [DllImport("sqlite3", EntryPoint = "sqlite3_win32_set_directory", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Unicode)] public static extern int SetDirectory(uint directoryType, string directoryPath); [DllImport("sqlite3", EntryPoint = "sqlite3_busy_timeout", CallingConvention = CallingConvention.Cdecl)] public static extern Result BusyTimeout(IntPtr db, int milliseconds); [DllImport("sqlite3", EntryPoint = "sqlite3_changes", CallingConvention = CallingConvention.Cdecl)] public static extern int Changes(IntPtr db); [DllImport("sqlite3", EntryPoint = "sqlite3_prepare_v2", CallingConvention = CallingConvention.Cdecl)] public static extern Result Prepare2(IntPtr db, [MarshalAs(UnmanagedType.LPStr)] string sql, int numBytes, out IntPtr stmt, IntPtr pzTail); #if NETFX_CORE [DllImport ("sqlite3", EntryPoint = "sqlite3_prepare_v2", CallingConvention = CallingConvention.Cdecl)] public static extern Result Prepare2 (IntPtr db, byte[] queryBytes, int numBytes, out IntPtr stmt, IntPtr pzTail); #endif public static IntPtr Prepare2(IntPtr db, string query) { IntPtr stmt; #if NETFX_CORE byte[] queryBytes = System.Text.UTF8Encoding.UTF8.GetBytes (query); var r = Prepare2 (db, queryBytes, queryBytes.Length, out stmt, IntPtr.Zero); #else var r = Prepare2(db, query, System.Text.UTF8Encoding.UTF8.GetByteCount(query), out stmt, IntPtr.Zero); #endif if (r != Result.OK) { throw SQLiteException.New(r, GetErrmsg(db)); } return stmt; } [DllImport("sqlite3", EntryPoint = "sqlite3_step", CallingConvention = CallingConvention.Cdecl)] public static extern Result Step(IntPtr stmt); [DllImport("sqlite3", EntryPoint = "sqlite3_reset", CallingConvention = CallingConvention.Cdecl)] public static extern Result Reset(IntPtr stmt); [DllImport("sqlite3", EntryPoint = "sqlite3_finalize", CallingConvention = CallingConvention.Cdecl)] public static extern Result Finalize(IntPtr stmt); [DllImport("sqlite3", EntryPoint = "sqlite3_last_insert_rowid", CallingConvention = CallingConvention.Cdecl)] public static extern long LastInsertRowid(IntPtr db); [DllImport("sqlite3", EntryPoint = "sqlite3_errmsg16", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr Errmsg(IntPtr db); public static string GetErrmsg(IntPtr db) { return Marshal.PtrToStringUni(Errmsg(db)); } [DllImport("sqlite3", EntryPoint = "sqlite3_bind_parameter_index", CallingConvention = CallingConvention.Cdecl)] public static extern int BindParameterIndex(IntPtr stmt, [MarshalAs(UnmanagedType.LPStr)] string name); [DllImport("sqlite3", EntryPoint = "sqlite3_bind_null", CallingConvention = CallingConvention.Cdecl)] public static extern int BindNull(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_bind_int", CallingConvention = CallingConvention.Cdecl)] public static extern int BindInt(IntPtr stmt, int index, int val); [DllImport("sqlite3", EntryPoint = "sqlite3_bind_int64", CallingConvention = CallingConvention.Cdecl)] public static extern int BindInt64(IntPtr stmt, int index, long val); [DllImport("sqlite3", EntryPoint = "sqlite3_bind_double", CallingConvention = CallingConvention.Cdecl)] public static extern int BindDouble(IntPtr stmt, int index, double val); [DllImport("sqlite3", EntryPoint = "sqlite3_bind_text16", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Unicode)] public static extern int BindText(IntPtr stmt, int index, [MarshalAs(UnmanagedType.LPWStr)] string val, int n, IntPtr free); [DllImport("sqlite3", EntryPoint = "sqlite3_bind_blob", CallingConvention = CallingConvention.Cdecl)] public static extern int BindBlob(IntPtr stmt, int index, byte[] val, int n, IntPtr free); [DllImport("sqlite3", EntryPoint = "sqlite3_column_count", CallingConvention = CallingConvention.Cdecl)] public static extern int ColumnCount(IntPtr stmt); [DllImport("sqlite3", EntryPoint = "sqlite3_column_name", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr ColumnName(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_name16", CallingConvention = CallingConvention.Cdecl)] static extern IntPtr ColumnName16Internal(IntPtr stmt, int index); public static string ColumnName16(IntPtr stmt, int index) { return Marshal.PtrToStringUni(ColumnName16Internal(stmt, index)); } [DllImport("sqlite3", EntryPoint = "sqlite3_column_type", CallingConvention = CallingConvention.Cdecl)] public static extern ColType ColumnType(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_int", CallingConvention = CallingConvention.Cdecl)] public static extern int ColumnInt(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_int64", CallingConvention = CallingConvention.Cdecl)] public static extern long ColumnInt64(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_double", CallingConvention = CallingConvention.Cdecl)] public static extern double ColumnDouble(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_text", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr ColumnText(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_text16", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr ColumnText16(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_blob", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr ColumnBlob(IntPtr stmt, int index); [DllImport("sqlite3", EntryPoint = "sqlite3_column_bytes", CallingConvention = CallingConvention.Cdecl)] public static extern int ColumnBytes(IntPtr stmt, int index); public static string ColumnString(IntPtr stmt, int index) { return Marshal.PtrToStringUni(SQLite3.ColumnText16(stmt, index)); } public static byte[] ColumnByteArray(IntPtr stmt, int index) { int length = ColumnBytes(stmt, index); var result = new byte[length]; if (length > 0) Marshal.Copy(ColumnBlob(stmt, index), result, 0, length); return result; } [DllImport("sqlite3", EntryPoint = "sqlite3_extended_errcode", CallingConvention = CallingConvention.Cdecl)] public static extern ExtendedResult ExtendedErrCode(IntPtr db); [DllImport("sqlite3", EntryPoint = "sqlite3_libversion_number", CallingConvention = CallingConvention.Cdecl)] public static extern int LibVersionNumber(); #else public static Result Open(string filename, out Sqlite3DatabaseHandle db) { return (Result) Sqlite3.sqlite3_open(filename, out db); } public static Result Open(string filename, out Sqlite3DatabaseHandle db, int flags, IntPtr zVfs) { #if USE_WP8_NATIVE_SQLITE return (Result)Sqlite3.sqlite3_open_v2(filename, out db, flags, ""); #else return (Result)Sqlite3.sqlite3_open_v2(filename, out db, flags, null); #endif } public static Result Close(Sqlite3DatabaseHandle db) { return (Result)Sqlite3.sqlite3_close(db); } public static Result BusyTimeout(Sqlite3DatabaseHandle db, int milliseconds) { return (Result)Sqlite3.sqlite3_busy_timeout(db, milliseconds); } public static int Changes(Sqlite3DatabaseHandle db) { return Sqlite3.sqlite3_changes(db); } public static Sqlite3Statement Prepare2(Sqlite3DatabaseHandle db, string query) { Sqlite3Statement stmt = default(Sqlite3Statement); #if USE_WP8_NATIVE_SQLITE var r = Sqlite3.sqlite3_prepare_v2(db, query, out stmt); #else stmt = new Sqlite3Statement(); var r = Sqlite3.sqlite3_prepare_v2(db, query, -1, ref stmt, 0); #endif if (r != 0) { throw SQLiteException.New((Result)r, GetErrmsg(db)); } return stmt; } public static Result Step(Sqlite3Statement stmt) { return (Result)Sqlite3.sqlite3_step(stmt); } public static Result Reset(Sqlite3Statement stmt) { return (Result)Sqlite3.sqlite3_reset(stmt); } public static Result Finalize(Sqlite3Statement stmt) { return (Result)Sqlite3.sqlite3_finalize(stmt); } public static long LastInsertRowid(Sqlite3DatabaseHandle db) { return Sqlite3.sqlite3_last_insert_rowid(db); } public static string GetErrmsg(Sqlite3DatabaseHandle db) { return Sqlite3.sqlite3_errmsg(db); } public static int BindParameterIndex(Sqlite3Statement stmt, string name) { return Sqlite3.sqlite3_bind_parameter_index(stmt, name); } public static int BindNull(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_bind_null(stmt, index); } public static int BindInt(Sqlite3Statement stmt, int index, int val) { return Sqlite3.sqlite3_bind_int(stmt, index, val); } public static int BindInt64(Sqlite3Statement stmt, int index, long val) { return Sqlite3.sqlite3_bind_int64(stmt, index, val); } public static int BindDouble(Sqlite3Statement stmt, int index, double val) { return Sqlite3.sqlite3_bind_double(stmt, index, val); } public static int BindText(Sqlite3Statement stmt, int index, string val, int n, IntPtr free) { #if USE_WP8_NATIVE_SQLITE return Sqlite3.sqlite3_bind_text(stmt, index, val, n); #else return Sqlite3.sqlite3_bind_text(stmt, index, val, n, null); #endif } public static int BindBlob(Sqlite3Statement stmt, int index, byte[] val, int n, IntPtr free) { #if USE_WP8_NATIVE_SQLITE return Sqlite3.sqlite3_bind_blob(stmt, index, val, n); #else return Sqlite3.sqlite3_bind_blob(stmt, index, val, n, null); #endif } public static int ColumnCount(Sqlite3Statement stmt) { return Sqlite3.sqlite3_column_count(stmt); } public static string ColumnName(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_name(stmt, index); } public static string ColumnName16(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_name(stmt, index); } public static ColType ColumnType(Sqlite3Statement stmt, int index) { return (ColType)Sqlite3.sqlite3_column_type(stmt, index); } public static int ColumnInt(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_int(stmt, index); } public static long ColumnInt64(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_int64(stmt, index); } public static double ColumnDouble(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_double(stmt, index); } public static string ColumnText(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_text(stmt, index); } public static string ColumnText16(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_text(stmt, index); } public static byte[] ColumnBlob(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_blob(stmt, index); } public static int ColumnBytes(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_bytes(stmt, index); } public static string ColumnString(Sqlite3Statement stmt, int index) { return Sqlite3.sqlite3_column_text(stmt, index); } public static byte[] ColumnByteArray(Sqlite3Statement stmt, int index) { return ColumnBlob(stmt, index); } public static Result EnableLoadExtension(Sqlite3DatabaseHandle db, int onoff) { return (Result)Sqlite3.sqlite3_enable_load_extension(db, onoff); } public static ExtendedResult ExtendedErrCode(Sqlite3DatabaseHandle db) { return (ExtendedResult)Sqlite3.sqlite3_extended_errcode(db); } #endif public enum ColType : int { Integer = 1, Float = 2, Text = 3, Blob = 4, Null = 5 } } }