gorm/mysql.go

78 lines
1.8 KiB
Go
Raw Normal View History

package gorm
2013-11-14 14:59:11 +04:00
import (
"fmt"
2014-03-16 05:28:43 +04:00
"reflect"
2013-11-14 14:59:11 +04:00
)
type mysql struct{}
2013-11-16 16:47:25 +04:00
func (s *mysql) BinVar(i int) string {
2013-11-21 10:33:06 +04:00
return "$$" // ?
2013-11-14 14:59:11 +04:00
}
func (s *mysql) SupportLastInsertId() bool {
return true
}
2014-03-16 05:28:43 +04:00
func (d *mysql) SqlTag(value reflect.Value, size int) string {
switch value.Kind() {
case reflect.Bool:
2013-11-14 14:59:11 +04:00
return "boolean"
2014-03-16 05:28:43 +04:00
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
2013-11-14 14:59:11 +04:00
return "int"
2014-03-16 05:28:43 +04:00
case reflect.Int64, reflect.Uint64:
2013-11-14 14:59:11 +04:00
return "bigint"
2014-03-16 05:28:43 +04:00
case reflect.Float32, reflect.Float64:
2013-11-14 14:59:11 +04:00
return "double"
2014-03-16 05:28:43 +04:00
case reflect.String:
2013-11-14 14:59:11 +04:00
if size > 0 && size < 65532 {
return fmt.Sprintf("varchar(%d)", size)
} else {
return "longtext"
}
2014-03-16 05:28:43 +04:00
case reflect.Struct:
if value.Type() == timeType {
return "datetime"
}
2013-11-14 14:59:11 +04:00
default:
2014-03-16 05:28:43 +04:00
if _, ok := value.Interface().([]byte); ok {
if size > 0 && size < 65532 {
return fmt.Sprintf("varbinary(%d)", size)
} else {
return "longblob"
}
}
2013-11-14 14:59:11 +04:00
}
2014-03-16 05:28:43 +04:00
panic(fmt.Sprintf("invalid sql type %s (%s) for mysql", value.Type().Name(), value.Kind().String()))
2013-11-14 14:59:11 +04:00
}
2014-03-16 05:28:43 +04:00
func (s *mysql) PrimaryKeyTag(value reflect.Value, size int) string {
2013-11-14 14:59:11 +04:00
suffix_str := " NOT NULL AUTO_INCREMENT PRIMARY KEY"
2014-03-16 05:28:43 +04:00
switch value.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
2013-11-14 14:59:11 +04:00
return "int" + suffix_str
2014-03-16 05:28:43 +04:00
case reflect.Int64, reflect.Uint64:
2013-11-14 14:59:11 +04:00
return "bigint" + suffix_str
default:
panic("Invalid primary key type")
}
}
func (s *mysql) ReturningStr(key string) string {
return ""
2013-11-14 14:59:11 +04:00
}
func (s *mysql) Quote(key string) string {
return fmt.Sprintf("`%s`", key)
}
func (s *mysql) HasTable(tableName string) bool {
return true
}
func (s *mysql) HasColumn(tableName string, columnName string) bool {
return true
}