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interface changed for adding dropifexist

This commit is contained in:
Lunny Xiao 2015-03-13 15:19:50 +08:00
parent a9aba4b935
commit c6d2321d63
1 changed files with 6 additions and 10 deletions
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16
dialect.go
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@ -47,6 +47,7 @@ type Dialect interface {
SupportInsertMany() bool
SupportEngine() bool
SupportCharset() bool
SupportDropIfExists() bool
IndexOnTable() bool
ShowCreateNull() bool
@ -63,7 +64,7 @@ type Dialect interface {
ModifyColumnSql(tableName string, col *Column) string
//CreateTableIfNotExists(table *Table, tableName, storeEngine, charset string) error
MustDropTable(tableName string) error
//MustDropTable(tableName string) error
GetColumns(tableName string) ([]string, map[string]*Column, error)
GetTables() ([]*Table, error)
@ -139,17 +140,12 @@ func (db *Base) RollBackStr() string {
return "ROLL BACK"
}
func (db *Base) DropTableSql(tableName string) string {
return fmt.Sprintf("DROP TABLE IF EXISTS `%s`;", tableName)
func (db *Base) SupportDropIfExists() bool {
return true
}
func (db *Base) MustDropTable(tableName string) error {
query := db.DropTableSql(tableName)
_, err := db.db.Exec(query)
if db.Logger != nil {
db.Logger.Info("[sql]", query)
}
return err
func (db *Base) DropTableSql(tableName string) string {
return fmt.Sprintf("DROP TABLE IF EXISTS `%s`", tableName)
}
func (db *Base) HasRecords(query string, args ...interface{}) (bool, error) {