74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
//go:build sqlite && !wflib
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// +build sqlite,!wflib
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/*
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* Copyright © 2019-2020 Musing Studio LLC.
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*
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* This file is part of WriteFreely.
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*
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* WriteFreely is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, included
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* in the LICENSE file in this source code package.
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*/
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package writefreely
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import (
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"database/sql"
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"github.com/go-sql-driver/mysql"
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"github.com/mattn/go-sqlite3"
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"github.com/writeas/web-core/log"
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"regexp"
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)
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func init() {
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SQLiteEnabled = true
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regex := func(re, s string) (bool, error) {
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return regexp.MatchString(re, s)
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}
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sql.Register("sqlite3_with_regex", &sqlite3.SQLiteDriver{
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ConnectHook: func(conn *sqlite3.SQLiteConn) error {
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return conn.RegisterFunc("regexp", regex, true)
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},
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})
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}
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func (db *datastore) isDuplicateKeyErr(err error) bool {
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if db.driverName == driverSQLite {
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if err, ok := err.(sqlite3.Error); ok {
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return err.Code == sqlite3.ErrConstraint
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}
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} else if db.driverName == driverMySQL {
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if mysqlErr, ok := err.(*mysql.MySQLError); ok {
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return mysqlErr.Number == mySQLErrDuplicateKey
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}
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} else {
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log.Error("isDuplicateKeyErr: failed check for unrecognized driver '%s'", db.driverName)
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}
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return false
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}
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func (db *datastore) isIgnorableError(err error) bool {
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if db.driverName == driverMySQL {
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if mysqlErr, ok := err.(*mysql.MySQLError); ok {
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return mysqlErr.Number == mySQLErrCollationMix
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}
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} else {
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log.Error("isIgnorableError: failed check for unrecognized driver '%s'", db.driverName)
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}
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return false
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}
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func (db *datastore) isHighLoadError(err error) bool {
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if db.driverName == driverMySQL {
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if mysqlErr, ok := err.(*mysql.MySQLError); ok {
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return mysqlErr.Number == mySQLErrMaxUserConns || mysqlErr.Number == mySQLErrTooManyConns
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}
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}
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return false
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}
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