public override IEnumerable <T> ExecuteQueryScalars <T>()
{
var stmt = Prepare();
try
{
if (SQLite3.ColumnCount(stmt) < 1)
{
throw new InvalidOperationException("QueryScalars should return at least one column");
}
while (SQLite3.Step(stmt) == SQLite3.Result.Row)
{
var colType = SQLite3.ColumnType(stmt, 0);
var val = ReadCol(stmt, 0, colType, typeof(T));
if (val == null)
{
yield return(default(T));
}
else
{
yield return((T)val);
}
}
}
finally
{
Finalize(stmt);
}
}
public override int ExecuteNonQuery()
{
var r = SQLite3.Result.OK;
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, SQLite3.GetErrmsg(_conn.Handle));
}
public override T ExecuteScalar <T>()
{
T val = default(T);
var stmt = Prepare();
try
{
var r = SQLite3.Step(stmt);
if (r == SQLite3.Result.Row)
{
var colType = SQLite3.ColumnType(stmt, 0);
var colval = ReadCol(stmt, 0, colType, typeof(T));
if (colval != null)
{
val = (T)colval;
}
}
else if (r == SQLite3.Result.Done)
{
}
else
{
throw SQLiteException.New(r, SQLite3.GetErrmsg(_conn.Handle));
}
}
finally
{
Finalize(stmt);
}
return(val);
}
public int ExecuteNonQuery(object[] source)
{
if (Initialized && Statement == NullStatement)
{
throw new ObjectDisposedException(nameof(PreparedSqlLiteInsertCommand));
}
if (Connection.IsClosed)
{
Connection.RenewConnection();
}
var r = SQLite3.Result.OK;
if (!Initialized)
{
Statement = SQLite3.Prepare2(Connection.Handle, CommandText);
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, Connection.DateTimeStringFormat, Connection.StoreTimeSpanAsTicks);
}
}
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 if (r == SQLite3.Result.Constraint && SQLite3.ExtendedErrCode(Connection.Handle) == SQLite3.ExtendedResult.ConstraintUnique)
{
SQLite3.Reset(Statement);
throw NotNullConstraintViolationException.New(r, SQLite3.GetErrmsg(Connection.Handle));
}
else
{
SQLite3.Reset(Statement);
throw SQLiteException.New(r, SQLite3.GetErrmsg(Connection.Handle));
}
}
public IEnumerable <T> ExecuteDeferredQuery <T>(Base.TableMapping map, DaemonCompiledSetter _compiledSetter) where T : class
{
DaemonCompiledSetter <T, sqlite3_stmt> compiledSetter = _compiledSetter as DaemonCompiledSetter <T, sqlite3_stmt>;
List <T> result = new List <T>();
if (_conn.IsClosed)
{
_conn.RenewConnection();
}
Log.Logger.Debug(this.CommandText);
var stmt = Prepare();
try
{
while (SQLite3.Step(stmt) == SQLite3.Result.Row)
{
var obj = Activator.CreateInstance(map.MappedType);
for (int i = 0; i < compiledSetter.Columns.Length; i++)
{
if (compiledSetter.Columns[i] == null)
{
continue;
}
if (compiledSetter.Setters[i] != null)
{
if (obj is not T)
{
}
compiledSetter.Setters[i].Invoke((T)obj, stmt, i);
}
else
{
var colType = SQLite3.ColumnType(stmt, i);
var val = ReadCol(stmt, i, colType, compiledSetter.Columns[i].ColumnType);
compiledSetter.Columns[i].SetValue(obj, val);
}
}
OnInstanceCreated(obj);
result.Add((T)obj);
}
}
catch (Exception ex)
{
Log.Logger.Error(ex, "SqliteCommand.ExecuteDeferredQuery");
}
finally
{
SQLite3.Finalize(stmt);
}
return(result);
}
public override IEnumerable <T> ExecuteDeferredQuery <T>(Kit.Sql.Base.TableMapping map)
{
List <T> result = new List <T>();
if (_conn.IsClosed)
{
_conn.RenewConnection();
}
Log.Logger.Debug(this.CommandText);
var stmt = Prepare();
try
{
var cols = new Column[SQLite3.ColumnCount(stmt)];
var fastColumnSetters = new Action <T, sqlite3_stmt, int> [SQLite3.ColumnCount(stmt)];
for (int i = 0; i < cols.Length; i++)
{
var name = SQLite3.ColumnName16(stmt, i);
cols[i] = map.FindColumn(name);
if (cols[i] != null)
{
fastColumnSetters[i] = FastColumnSetter.GetFastSetter <T>(_conn, cols[i]);
}
}
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;
}
if (fastColumnSetters[i] != null)
{
if (obj is not T)
{
}
fastColumnSetters[i].Invoke((T)obj, stmt, i);
}
else
{
var colType = SQLite3.ColumnType(stmt, i);
var val = ReadCol(stmt, i, colType, cols[i].ColumnType);
cols[i].SetValue(obj, val);
}
}
OnInstanceCreated(obj);
result.Add((T)obj);
}
}
catch (Exception ex)
{
Log.Logger.Error(ex, "SqliteCommand.ExecuteDeferredQuery");
}
finally
{
SQLite3.Finalize(stmt);
}
return(result);
}