public override int ExecuteSql(string sql, QueryParameterCollection parameters = null)
{
lock (this) // although sqlite3 is thread-safe, we need to make sure that the last_insert_rowid is correct
{
var stmt = CreateCommand(sql, parameters);
try
{
SqliteReturnCode returnCode = _sqlite3.step(stmt);
if (returnCode == SqliteReturnCode.Row)
{
return(0); // quietly eat any rows being returned
}
if (returnCode != SqliteReturnCode.Done)
{
throw new SqliteException(returnCode, _sqlite3.extended_errcode(DbHandle), _sqlite3.errmsg(DbHandle));
}
_lastRowId.Value = _sqlite3.last_insert_rowid(DbHandle);
return(_sqlite3.changes(DbHandle));
}
finally
{
_sqlite3.finalize(stmt);
}
}
}
public SqliteException(SqliteReturnCode returnCode, SqliteExtendedErrorCode extendedErrorCode, string message) : base(message)
{
ReturnCode = returnCode;
ExtendedErrorCode = extendedErrorCode;
}
private IntPtr CreateCommand(string sql, QueryParameterCollection parameters)
{
IntPtr stmt;
SqliteReturnCode returnCode = _sqlite3.prepare_v2(DbHandle, sql, out stmt);
if (returnCode != SqliteReturnCode.Ok)
{
throw new SqliteException(returnCode, _sqlite3.extended_errcode(DbHandle), _sqlite3.errmsg(DbHandle));
}
if (parameters != null)
{
foreach (var parameter in parameters)
{
int paramNumber = _sqlite3.bind_parameter_index(stmt, SqlDialect.CreateParameterExpression(parameter.Name));
var value = parameter.Value;
if (value == null)
{
_sqlite3.bind_null(stmt, paramNumber);
}
else
{
var parameterType = parameter.Type.Inspector();
if (parameterType.Is(TypeFlags.Boolean))
{
_sqlite3.bind_int(stmt, paramNumber, value.Convert <bool>() ? 1 : 0);
}
else if (parameterType.Is(TypeFlags.Array | TypeFlags.Byte))
{
_sqlite3.bind_blob(stmt, paramNumber, (byte[])value);
}
else if (parameterType.Is(TypeFlags.Integer64))
{
_sqlite3.bind_int64(stmt, paramNumber, value.Convert <long>());
}
else if (parameterType.Is(TypeFlags.Integer))
{
_sqlite3.bind_int(stmt, paramNumber, value.Convert <int>());
}
else if (parameterType.Is(TypeFlags.FloatingPoint))
{
_sqlite3.bind_double(stmt, paramNumber, value.Convert <double>());
}
else if (parameterType.Is(TypeFlags.String))
{
_sqlite3.bind_text(stmt, paramNumber, value.Convert <string>());
}
else if (parameterType.Is(TypeFlags.DateTime))
{
switch (DateFormat)
{
case SqliteDateFormat.String:
_sqlite3.bind_text(stmt, paramNumber, ((DateTime)value).ToString("yyyy-MM-dd HH:mm:ss.fff"));
break;
// case SqliteDateFormat.Julian:
// _sqlite3.bind_int64(stmt, paramNumber, ((DateTime)value).Ticks);
// break;
case SqliteDateFormat.Unix:
_sqlite3.bind_int(stmt, paramNumber, (int)(((DateTime)value) - new DateTime(1970, 1, 1)).TotalSeconds);
break;
case SqliteDateFormat.Ticks:
_sqlite3.bind_int64(stmt, paramNumber, ((DateTime)value).Ticks);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
_sqlite3.bind_text(stmt, paramNumber, value.Convert <string>());
}
}
}
}
return(stmt);
}
