mirror of https://github.com/go-gorm/gorm.git
78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
package gorm
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"reflect"
|
|
)
|
|
|
|
type mysql struct{}
|
|
|
|
func (s *mysql) BinVar(i int) string {
|
|
return "$$" // ?
|
|
}
|
|
|
|
func (s *mysql) SupportLastInsertId() bool {
|
|
return true
|
|
}
|
|
|
|
func (d *mysql) SqlTag(value reflect.Value, size int) string {
|
|
switch value.Kind() {
|
|
case reflect.Bool:
|
|
return "boolean"
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
|
|
return "int"
|
|
case reflect.Int64, reflect.Uint64:
|
|
return "bigint"
|
|
case reflect.Float32, reflect.Float64:
|
|
return "double"
|
|
case reflect.String:
|
|
if size > 0 && size < 65532 {
|
|
return fmt.Sprintf("varchar(%d)", size)
|
|
} else {
|
|
return "longtext"
|
|
}
|
|
case reflect.Struct:
|
|
if value.Type() == timeType {
|
|
return "datetime"
|
|
}
|
|
default:
|
|
if _, ok := value.Interface().([]byte); ok {
|
|
if size > 0 && size < 65532 {
|
|
return fmt.Sprintf("varbinary(%d)", size)
|
|
} else {
|
|
return "longblob"
|
|
}
|
|
}
|
|
}
|
|
panic(fmt.Sprintf("invalid sql type %s (%s) for mysql", value.Type().Name(), value.Kind().String()))
|
|
}
|
|
|
|
func (s *mysql) PrimaryKeyTag(value reflect.Value, size int) string {
|
|
suffix_str := " NOT NULL AUTO_INCREMENT PRIMARY KEY"
|
|
switch value.Kind() {
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
|
|
return "int" + suffix_str
|
|
case reflect.Int64, reflect.Uint64:
|
|
return "bigint" + suffix_str
|
|
default:
|
|
panic("Invalid primary key type")
|
|
}
|
|
}
|
|
|
|
func (s *mysql) ReturningStr(key string) string {
|
|
return ""
|
|
}
|
|
|
|
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
|
|
}
|