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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//go:build !moderncsqlite3 && !nowasm && libsqlite3
package sqlite
import (
"context"
"database/sql/driver"
sqlite3 "github.com/mattn/go-sqlite3"
"github.com/superseriousbusiness/gotosocial/internal/db"
)
// Driver is our own wrapper around the
// driver.SQLite{} type in order to wrap
// further SQL types with our own
// functionality, e.g. err processing.
type Driver struct{ sqlite3.SQLiteDriver }
func (d *Driver) Open(name string) (driver.Conn, error) {
conn, err := d.SQLiteDriver.Open(name)
if err != nil {
err = processSQLiteError(err)
return nil, err
}
return &sqliteConn{conn.(connIface)}, nil
}
type sqliteConn struct{ connIface }
func (c *sqliteConn) Begin() (driver.Tx, error) {
return c.BeginTx(context.Background(), driver.TxOptions{})
}
func (c *sqliteConn) BeginTx(ctx context.Context, opts driver.TxOptions) (tx driver.Tx, err error) {
tx, err = c.connIface.BeginTx(ctx, opts)
err = processSQLiteError(err)
if err != nil {
return nil, err
}
return &sqliteTx{tx}, nil
}
func (c *sqliteConn) Prepare(query string) (driver.Stmt, error) {
return c.PrepareContext(context.Background(), query)
}
func (c *sqliteConn) PrepareContext(ctx context.Context, query string) (stmt driver.Stmt, err error) {
stmt, err = c.connIface.PrepareContext(ctx, query)
err = processSQLiteError(err)
if err != nil {
return nil, err
}
return &sqliteStmt{stmtIface: stmt.(stmtIface)}, nil
}
func (c *sqliteConn) Exec(query string, args []driver.Value) (driver.Result, error) {
return c.ExecContext(context.Background(), query, db.ToNamedValues(args))
}
func (c *sqliteConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (res driver.Result, err error) {
res, err = c.connIface.ExecContext(ctx, query, args)
err = processSQLiteError(err)
return
}
func (c *sqliteConn) Close() (err error) {
// see: https://www.sqlite.org/pragma.html#pragma_optimize
const onClose = "PRAGMA optimize;"
_, _ = c.connIface.ExecContext(context.Background(), onClose, nil)
// Finally, close the conn.
err = c.connIface.Close()
return
}
type sqliteTx struct{ driver.Tx }
func (tx *sqliteTx) Commit() (err error) {
err = tx.Tx.Commit()
err = processSQLiteError(err)
return
}
func (tx *sqliteTx) Rollback() (err error) {
err = tx.Tx.Rollback()
err = processSQLiteError(err)
return
}
type sqliteStmt struct{ stmtIface }
func (stmt *sqliteStmt) Exec(args []driver.Value) (driver.Result, error) {
return stmt.ExecContext(context.Background(), db.ToNamedValues(args))
}
func (stmt *sqliteStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (res driver.Result, err error) {
res, err = stmt.stmtIface.ExecContext(ctx, args)
err = processSQLiteError(err)
return
}
func (stmt *sqliteStmt) Query(args []driver.Value) (driver.Rows, error) {
return stmt.QueryContext(context.Background(), db.ToNamedValues(args))
}
func (stmt *sqliteStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (rows driver.Rows, err error) {
rows, err = stmt.stmtIface.QueryContext(ctx, args)
err = processSQLiteError(err)
if err != nil {
return nil, err
}
return &sqliteRows{rows.(rowsIface)}, nil
}
func (stmt *sqliteStmt) Close() (err error) {
err = stmt.stmtIface.Close()
err = processSQLiteError(err)
return
}
type sqliteRows struct{ rowsIface }
func (r *sqliteRows) Next(dest []driver.Value) (err error) {
err = r.rowsIface.Next(dest)
err = processSQLiteError(err)
return
}
func (r *sqliteRows) Close() (err error) {
err = r.rowsIface.Close()
err = processSQLiteError(err)
return
}
// connIface is the driver.Conn interface
// types (and the like) that go-sqlite3/driver.conn
// conforms to. Useful so you don't need
// to repeatedly perform checks yourself.
type connIface interface {
driver.Conn
driver.ConnBeginTx
driver.ConnPrepareContext
driver.ExecerContext
}
// StmtIface is the driver.Stmt interface
// types (and the like) that go-sqlite3/driver.stmt
// conforms to. Useful so you don't need
// to repeatedly perform checks yourself.
type stmtIface interface {
driver.Stmt
driver.StmtExecContext
driver.StmtQueryContext
}
// RowsIface is the driver.Rows interface
// types (and the like) that go-sqlite3/driver.rows
// conforms to. Useful so you don't need
// to repeatedly perform checks yourself.
type rowsIface interface {
driver.Rows
driver.RowsColumnTypeDatabaseTypeName
driver.RowsColumnTypeNullable
}
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