System.Data.SQLite
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Overview
Comment:When translating a DbType to a type name, be sure to prioritize the type names supported by the EDMX components. Fix for [47f4bac575].
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 4aa236088586925e892f367ac8cc5cbc375afd13
User & Date: mistachkin 2013-05-28 09:34:15
References
2013-05-28
09:37 • Pending ticket [47f4bac575]: Entity Data Model generator problem plus 7 other changes artifact: 88ef29888c user: mistachkin
Context
2013-05-28
09:55
Bump all versions to 1.0.87.0. check-in: 01ae5e862f user: mistachkin tags: trunk
09:34
When translating a DbType to a type name, be sure to prioritize the type names supported by the EDMX components. Fix for [47f4bac575]. check-in: 4aa2360885 user: mistachkin tags: trunk
08:19
Fix incorrect comment. check-in: 3a98512a05 user: mistachkin tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to System.Data.SQLite/SQLiteConvert.cs. 

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      DBNull.Value  // Xml (25)
    };

    internal static string DbTypeToTypeName(DbType typ)
    {
      for (int n = 0; n < _dbtypeNames.Length; n++)
      {
        if (_dbtypeNames[n].dataType == typ)
          return _dbtypeNames[n].typeName;



      }

      string defaultTypeName = String.Empty;

#if !NET_COMPACT_20 && TRACE_WARNING
      Trace.WriteLine(String.Format(
          "WARNING: Type mapping failed, returning default name \"{0}\" for type {1}.",
          defaultTypeName, typ));
#endif

      return defaultTypeName;
    }

    private static SQLiteTypeNames[] _dbtypeNames = GetSQLiteTypeNames();

    /// <summary>
    /// Convert a DbType to a Type
    /// </summary>
    /// <param name="typ">The DbType to convert from</param>
    /// <returns>The closest-match .NET type</returns>
    internal static Type DbTypeToType(DbType typ)
................................................................................
    /// Builds and returns an array containing the database column types
    /// recognized by this provider.
    /// </summary>
    /// <returns>
    /// An array containing the database column types recognized by this
    /// provider.
    /// </returns>
    private static SQLiteTypeNames[] GetSQLiteTypeNames()
    {
        return new SQLiteTypeNames[] {
            new SQLiteTypeNames("BIGINT", DbType.Int64),
            new SQLiteTypeNames("BIGUINT", DbType.UInt64),
            new SQLiteTypeNames("BINARY", DbType.Binary),
            new SQLiteTypeNames("BIT", DbType.Boolean),
            new SQLiteTypeNames("BLOB", DbType.Binary),
            new SQLiteTypeNames("BOOL", DbType.Boolean),
            new SQLiteTypeNames("BOOLEAN", DbType.Boolean),
            new SQLiteTypeNames("CHAR", DbType.AnsiStringFixedLength),
            new SQLiteTypeNames("COUNTER", DbType.Int64),
            new SQLiteTypeNames("CURRENCY", DbType.Decimal),
            new SQLiteTypeNames("DATE", DbType.DateTime),
            new SQLiteTypeNames("DATETIME", DbType.DateTime),
            new SQLiteTypeNames("DECIMAL", DbType.Decimal),
            new SQLiteTypeNames("DOUBLE", DbType.Double),
            new SQLiteTypeNames("FLOAT", DbType.Double),
            new SQLiteTypeNames("GENERAL", DbType.Binary),
            new SQLiteTypeNames("GUID", DbType.Guid),
            new SQLiteTypeNames("IDENTITY", DbType.Int64),
            new SQLiteTypeNames("IMAGE", DbType.Binary),
            new SQLiteTypeNames("INT", DbType.Int32),
            new SQLiteTypeNames("INT8", DbType.SByte),
            new SQLiteTypeNames("INT16", DbType.Int16),
            new SQLiteTypeNames("INT32", DbType.Int32),
            new SQLiteTypeNames("INT64", DbType.Int64),
            new SQLiteTypeNames("INTEGER", DbType.Int64),
            new SQLiteTypeNames("INTEGER8", DbType.SByte),
            new SQLiteTypeNames("INTEGER16", DbType.Int16),
            new SQLiteTypeNames("INTEGER32", DbType.Int32),
            new SQLiteTypeNames("INTEGER64", DbType.Int64),
            new SQLiteTypeNames("LOGICAL", DbType.Boolean),
            new SQLiteTypeNames("LONG", DbType.Int64),
            new SQLiteTypeNames("LONGCHAR", DbType.String),
            new SQLiteTypeNames("LONGTEXT", DbType.String),
            new SQLiteTypeNames("LONGVARCHAR", DbType.String),
            new SQLiteTypeNames("MEMO", DbType.String),
            new SQLiteTypeNames("MONEY", DbType.Decimal),
            new SQLiteTypeNames("NCHAR", DbType.StringFixedLength),
            new SQLiteTypeNames("NOTE", DbType.String),
            new SQLiteTypeNames("NTEXT", DbType.String),
            new SQLiteTypeNames("NUMERIC", DbType.Decimal),
            new SQLiteTypeNames("NVARCHAR", DbType.String),
            new SQLiteTypeNames("OLEOBJECT", DbType.Binary),
            new SQLiteTypeNames("REAL", DbType.Double),

            new SQLiteTypeNames("SMALLDATE", DbType.DateTime),
            new SQLiteTypeNames("SMALLINT", DbType.Int16),
            new SQLiteTypeNames("SMALLUINT", DbType.UInt16),
            new SQLiteTypeNames("STRING", DbType.String),
            new SQLiteTypeNames("TEXT", DbType.String),
            new SQLiteTypeNames("TIME", DbType.DateTime),
            new SQLiteTypeNames("TIMESTAMP", DbType.DateTime),
            new SQLiteTypeNames("TINYINT", DbType.Byte),
            new SQLiteTypeNames("TINYSINT", DbType.SByte),
            new SQLiteTypeNames("UINT", DbType.UInt32),
            new SQLiteTypeNames("UINT8", DbType.Byte),
            new SQLiteTypeNames("UINT16", DbType.UInt16),
            new SQLiteTypeNames("UINT32", DbType.UInt32),
            new SQLiteTypeNames("UINT64", DbType.UInt64),
            new SQLiteTypeNames("ULONG", DbType.UInt64),
            new SQLiteTypeNames("UNIQUEIDENTIFIER", DbType.Guid),
            new SQLiteTypeNames("UNSIGNEDINTEGER", DbType.UInt64),
            new SQLiteTypeNames("UNSIGNEDINTEGER8", DbType.Byte),
            new SQLiteTypeNames("UNSIGNEDINTEGER16", DbType.UInt16),
            new SQLiteTypeNames("UNSIGNEDINTEGER32", DbType.UInt32),
            new SQLiteTypeNames("UNSIGNEDINTEGER64", DbType.UInt64),
            new SQLiteTypeNames("VARBINARY", DbType.Binary),
            new SQLiteTypeNames("VARCHAR", DbType.AnsiString),
            new SQLiteTypeNames("YESNO", DbType.Boolean)
        };
    }

    /// <summary>
    /// For a given type name, return a closest-match .NET type
    /// </summary>
    /// <param name="Name">The name of the type to match</param>
................................................................................
    /// <returns>The .NET DBType the text evaluates to.</returns>
    internal static DbType TypeNameToDbType(string Name)
    {
      lock (_syncRoot)
      {
        if (_typeNames == null)
        {
          _typeNames = new Dictionary<string, SQLiteTypeNames>(
              new TypeNameStringComparer());

          foreach (SQLiteTypeNames typeName in GetSQLiteTypeNames())
            _typeNames.Add(typeName.typeName, typeName);
        }
      }

      if (String.IsNullOrEmpty(Name)) return DbType.Object;

      SQLiteTypeNames value;

      if (_typeNames.TryGetValue(Name, out value))
      {
        return value.dataType;
      }
      else
      {
................................................................................
#endif

      return defaultDbType;
    }
    #endregion

    private static object _syncRoot = new object();
    private static Dictionary<string, SQLiteTypeNames> _typeNames = null;
  }

  /// <summary>
  /// SQLite has very limited types, and is inherently text-based.  The first 5 types below represent the sum of all types SQLite
  /// understands.  The DateTime extension to the spec is for internal use only.
  /// </summary>
  public enum TypeAffinity
................................................................................
    internal DbType Type;
    /// <summary>
    /// The affinity of a column, used for expressions or when Type is DbType.Object
    /// </summary>
    internal TypeAffinity Affinity;
  }

  internal struct SQLiteTypeNames
  {
    internal SQLiteTypeNames(string newtypeName, DbType newdataType)
    {
      typeName = newtypeName;
      dataType = newdataType;

    }

    internal string typeName;
    internal DbType dataType;

  }

  internal class TypeNameStringComparer : IEqualityComparer<string>
  {
    #region IEqualityComparer<string> Members
    public bool Equals(
      string left,








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      DBNull.Value  // Xml (25)
    };

    internal static string DbTypeToTypeName(DbType typ)
    {
      for (int n = 0; n < _dbtypeNames.Length; n++)
      {

        SQLiteTypeName typeName = _dbtypeNames[n];

        if ((typeName.dataType == typ) && typeName.primary)
          return typeName.typeName;
      }

      string defaultTypeName = String.Empty;

#if !NET_COMPACT_20 && TRACE_WARNING
      Trace.WriteLine(String.Format(
          "WARNING: Type mapping failed, returning default name \"{0}\" for type {1}.",
          defaultTypeName, typ));
#endif

      return defaultTypeName;
    }

    private static SQLiteTypeName[] _dbtypeNames = GetSQLiteTypeNames();

    /// <summary>
    /// Convert a DbType to a Type
    /// </summary>
    /// <param name="typ">The DbType to convert from</param>
    /// <returns>The closest-match .NET type</returns>
    internal static Type DbTypeToType(DbType typ)
................................................................................
    /// Builds and returns an array containing the database column types
    /// recognized by this provider.
    /// </summary>
    /// <returns>
    /// An array containing the database column types recognized by this
    /// provider.
    /// </returns>
    private static SQLiteTypeName[] GetSQLiteTypeNames()
    {
        return new SQLiteTypeName[] {
            new SQLiteTypeName("BIGINT", DbType.Int64, false),
            new SQLiteTypeName("BIGUINT", DbType.UInt64, false),
            new SQLiteTypeName("BINARY", DbType.Binary, false),
            new SQLiteTypeName("BIT", DbType.Boolean, true),
            new SQLiteTypeName("BLOB", DbType.Binary, true),
            new SQLiteTypeName("BOOL", DbType.Boolean, false),
            new SQLiteTypeName("BOOLEAN", DbType.Boolean, false),
            new SQLiteTypeName("CHAR", DbType.AnsiStringFixedLength, true),
            new SQLiteTypeName("COUNTER", DbType.Int64, false),
            new SQLiteTypeName("CURRENCY", DbType.Decimal, false),
            new SQLiteTypeName("DATE", DbType.DateTime, false),
            new SQLiteTypeName("DATETIME", DbType.DateTime, true),
            new SQLiteTypeName("DECIMAL", DbType.Decimal, true),
            new SQLiteTypeName("DOUBLE", DbType.Double, false),
            new SQLiteTypeName("FLOAT", DbType.Double, false),
            new SQLiteTypeName("GENERAL", DbType.Binary, false),
            new SQLiteTypeName("GUID", DbType.Guid, false),
            new SQLiteTypeName("IDENTITY", DbType.Int64, false),
            new SQLiteTypeName("IMAGE", DbType.Binary, false),
            new SQLiteTypeName("INT", DbType.Int32, true),
            new SQLiteTypeName("INT8", DbType.SByte, false),
            new SQLiteTypeName("INT16", DbType.Int16, false),
            new SQLiteTypeName("INT32", DbType.Int32, false),
            new SQLiteTypeName("INT64", DbType.Int64, false),
            new SQLiteTypeName("INTEGER", DbType.Int64, true),
            new SQLiteTypeName("INTEGER8", DbType.SByte, false),
            new SQLiteTypeName("INTEGER16", DbType.Int16, false),
            new SQLiteTypeName("INTEGER32", DbType.Int32, false),
            new SQLiteTypeName("INTEGER64", DbType.Int64, false),
            new SQLiteTypeName("LOGICAL", DbType.Boolean, false),
            new SQLiteTypeName("LONG", DbType.Int64, false),
            new SQLiteTypeName("LONGCHAR", DbType.String, false),
            new SQLiteTypeName("LONGTEXT", DbType.String, false),
            new SQLiteTypeName("LONGVARCHAR", DbType.String, false),
            new SQLiteTypeName("MEMO", DbType.String, false),
            new SQLiteTypeName("MONEY", DbType.Decimal, false),
            new SQLiteTypeName("NCHAR", DbType.StringFixedLength, true),
            new SQLiteTypeName("NOTE", DbType.String, false),
            new SQLiteTypeName("NTEXT", DbType.String, false),
            new SQLiteTypeName("NUMERIC", DbType.Decimal, false),
            new SQLiteTypeName("NVARCHAR", DbType.String, true),
            new SQLiteTypeName("OLEOBJECT", DbType.Binary, false),
            new SQLiteTypeName("REAL", DbType.Double, true),
            new SQLiteTypeName("SINGLE", DbType.Single, true),
            new SQLiteTypeName("SMALLDATE", DbType.DateTime, false),
            new SQLiteTypeName("SMALLINT", DbType.Int16, true),
            new SQLiteTypeName("SMALLUINT", DbType.UInt16, true),
            new SQLiteTypeName("STRING", DbType.String, false),
            new SQLiteTypeName("TEXT", DbType.String, false),
            new SQLiteTypeName("TIME", DbType.DateTime, false),
            new SQLiteTypeName("TIMESTAMP", DbType.DateTime, false),
            new SQLiteTypeName("TINYINT", DbType.Byte, true),
            new SQLiteTypeName("TINYSINT", DbType.SByte, true),
            new SQLiteTypeName("UINT", DbType.UInt32, true),
            new SQLiteTypeName("UINT8", DbType.Byte, false),
            new SQLiteTypeName("UINT16", DbType.UInt16, false),
            new SQLiteTypeName("UINT32", DbType.UInt32, false),
            new SQLiteTypeName("UINT64", DbType.UInt64, false),
            new SQLiteTypeName("ULONG", DbType.UInt64, false),
            new SQLiteTypeName("UNIQUEIDENTIFIER", DbType.Guid, true),
            new SQLiteTypeName("UNSIGNEDINTEGER", DbType.UInt64, true),
            new SQLiteTypeName("UNSIGNEDINTEGER8", DbType.Byte, false),
            new SQLiteTypeName("UNSIGNEDINTEGER16", DbType.UInt16, false),
            new SQLiteTypeName("UNSIGNEDINTEGER32", DbType.UInt32, false),
            new SQLiteTypeName("UNSIGNEDINTEGER64", DbType.UInt64, false),
            new SQLiteTypeName("VARBINARY", DbType.Binary, false),
            new SQLiteTypeName("VARCHAR", DbType.AnsiString, true),
            new SQLiteTypeName("YESNO", DbType.Boolean, false)
        };
    }

    /// <summary>
    /// For a given type name, return a closest-match .NET type
    /// </summary>
    /// <param name="Name">The name of the type to match</param>
................................................................................
    /// <returns>The .NET DBType the text evaluates to.</returns>
    internal static DbType TypeNameToDbType(string Name)
    {
      lock (_syncRoot)
      {
        if (_typeNames == null)
        {
          _typeNames = new Dictionary<string, SQLiteTypeName>(
              new TypeNameStringComparer());

          foreach (SQLiteTypeName typeName in GetSQLiteTypeNames())
            _typeNames.Add(typeName.typeName, typeName);
        }
      }

      if (String.IsNullOrEmpty(Name)) return DbType.Object;

      SQLiteTypeName value;

      if (_typeNames.TryGetValue(Name, out value))
      {
        return value.dataType;
      }
      else
      {
................................................................................
#endif

      return defaultDbType;
    }
    #endregion

    private static object _syncRoot = new object();
    private static Dictionary<string, SQLiteTypeName> _typeNames = null;
  }

  /// <summary>
  /// SQLite has very limited types, and is inherently text-based.  The first 5 types below represent the sum of all types SQLite
  /// understands.  The DateTime extension to the spec is for internal use only.
  /// </summary>
  public enum TypeAffinity
................................................................................
    internal DbType Type;
    /// <summary>
    /// The affinity of a column, used for expressions or when Type is DbType.Object
    /// </summary>
    internal TypeAffinity Affinity;
  }

  internal struct SQLiteTypeName
  {
    internal SQLiteTypeName(string newTypeName, DbType newDataType, bool newPrimary)
    {
      typeName = newTypeName;
      dataType = newDataType;
      primary = newPrimary;
    }

    internal string typeName;
    internal DbType dataType;
    internal bool primary;
  }

  internal class TypeNameStringComparer : IEqualityComparer<string>
  {
    #region IEqualityComparer<string> Members
    public bool Equals(
      string left,

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###############################################################################
#
# tkt-47f4bac575.eagle --
#
# Written by Joe Mistachkin.
# Released to the public domain, use at your own risk!
#
###############################################################################

package require Eagle
package require Eagle.Library
package require Eagle.Test

runTestPrologue

###############################################################################

package require System.Data.SQLite.Test
runSQLiteTestPrologue

###############################################################################

runTest {test tkt-47f4bac575-1.1 {SQLiteConvert DbTypeToTypeName} -body {
  foreach dbType [list \
      AnsiString Binary Byte Boolean Currency Date DateTime Decimal \
      Double Guid Int16 Int32 Int64 Object SByte Single String Time \
      UInt16 UInt32 UInt64 VarNumeric AnsiStringFixedLength \
      StringFixedLength Xml DateTime2 DateTimeOffset] {
    lappend result [list $dbType [object invoke -flags +NonPublic \
        System.Data.SQLite.SQLiteConvert DbTypeToTypeName $dbType]]
  }
  set result
} -cleanup {
  unset -nocomplain result dbType
} -constraints {eagle System.Data.SQLite} -result {{AnsiString VARCHAR} {Binary\
BLOB} {Byte TINYINT} {Boolean BIT} {Currency {}} {Date {}} {DateTime DATETIME}\
{Decimal DECIMAL} {Double REAL} {Guid UNIQUEIDENTIFIER} {Int16 SMALLINT} {Int32\
INT} {Int64 INTEGER} {Object {}} {SByte TINYSINT} {Single SINGLE} {String\
NVARCHAR} {Time {}} {UInt16 SMALLUINT} {UInt32 UINT} {UInt64 UNSIGNEDINTEGER}\
{VarNumeric {}} {AnsiStringFixedLength CHAR} {StringFixedLength NCHAR} {Xml {}}\
{DateTime2 {}} {DateTimeOffset {}}}}

###############################################################################

runSQLiteTestEpilogue
runTestEpilogue

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