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package testfixtures
import (
"database/sql"
"fmt"
)
// MySQL is the MySQL helper for this package
type MySQL struct {
baseHelper
}
func (*MySQL) paramType() int {
return paramTypeQuestion
}
func (*MySQL) quoteKeyword(str string) string {
return fmt.Sprintf("`%s`", str)
}
func (*MySQL) databaseName(db *sql.DB) (dbName string) {
db.QueryRow("SELECT DATABASE()").Scan(&dbName)
return
}
func (h *MySQL) tableNames(db *sql.DB) ([]string, error) {
query := `
SELECT table_name
FROM information_schema.tables
WHERE table_schema=?;
`
rows, err := db.Query(query, h.databaseName(db))
if err != nil {
return nil, err
}
defer rows.Close()
var tables []string
for rows.Next() {
var table string
if err = rows.Scan(&table); err != nil {
return nil, err
}
tables = append(tables, table)
}
return tables, nil
}
func (h *MySQL) disableReferentialIntegrity(db *sql.DB, loadFn loadFunction) error {
// re-enable after load
defer db.Exec("SET FOREIGN_KEY_CHECKS = 1")
tx, err := db.Begin()
if err != nil {
return err
}
if _, err = tx.Exec("SET FOREIGN_KEY_CHECKS = 0"); err != nil {
return err
}
if err = loadFn(tx); err != nil {
tx.Rollback()
return err
}
return tx.Commit()
}
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