writefreely/database-sqlite.go
Matt Baer 8a555567a6 Fix tagged posts SQLite query
SQLite doesn't have an `RLIKE` function, so the query for hashtagged
posts was failing before. This adds a `regexp` function to SQLite and
correctly retrieves all posts on a blog with the requested hashtag.

This closes #55
2019-01-07 11:55:23 -05:00

50 lines
1.2 KiB
Go

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