80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
|
// Copyright 2017 The Xorm Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package statements
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"reflect"
|
||
|
|
|
||
|
|
"xorm.io/builder"
|
||
|
|
"xorm.io/xorm/schemas"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
ptrPkType = reflect.TypeOf(&schemas.PK{})
|
||
|
|
pkType = reflect.TypeOf(schemas.PK{})
|
||
|
|
stringType = reflect.TypeOf("")
|
||
|
|
intType = reflect.TypeOf(int64(0))
|
||
|
|
uintType = reflect.TypeOf(uint64(0))
|
||
|
|
)
|
||
|
|
|
||
|
|
// ID generate "where id = ? " statement or for composite key "where key1 = ? and key2 = ?"
|
||
|
|
func (statement *Statement) ID(id interface{}) *Statement {
|
||
|
|
switch t := id.(type) {
|
||
|
|
case *schemas.PK:
|
||
|
|
statement.idParam = *t
|
||
|
|
case schemas.PK:
|
||
|
|
statement.idParam = t
|
||
|
|
case string, int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
|
||
|
|
statement.idParam = schemas.PK{id}
|
||
|
|
default:
|
||
|
|
idValue := reflect.ValueOf(id)
|
||
|
|
idType := idValue.Type()
|
||
|
|
|
||
|
|
switch idType.Kind() {
|
||
|
|
case reflect.String:
|
||
|
|
statement.idParam = schemas.PK{idValue.Convert(stringType).Interface()}
|
||
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||
|
|
statement.idParam = schemas.PK{idValue.Convert(intType).Interface()}
|
||
|
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||
|
|
statement.idParam = schemas.PK{idValue.Convert(uintType).Interface()}
|
||
|
|
case reflect.Slice:
|
||
|
|
if idType.ConvertibleTo(pkType) {
|
||
|
|
statement.idParam = idValue.Convert(pkType).Interface().(schemas.PK)
|
||
|
|
}
|
||
|
|
case reflect.Ptr:
|
||
|
|
if idType.ConvertibleTo(ptrPkType) {
|
||
|
|
statement.idParam = idValue.Convert(ptrPkType).Elem().Interface().(schemas.PK)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if statement.idParam == nil {
|
||
|
|
statement.LastError = fmt.Errorf("ID param %#v is not supported", id)
|
||
|
|
}
|
||
|
|
|
||
|
|
return statement
|
||
|
|
}
|
||
|
|
|
||
|
|
func (statement *Statement) ProcessIDParam() error {
|
||
|
|
if statement.idParam == nil || statement.RefTable == nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(statement.RefTable.PrimaryKeys) != len(statement.idParam) {
|
||
|
|
fmt.Println("=====", statement.RefTable.PrimaryKeys, statement.idParam)
|
||
|
|
return fmt.Errorf("ID condition is error, expect %d primarykeys, there are %d",
|
||
|
|
len(statement.RefTable.PrimaryKeys),
|
||
|
|
len(statement.idParam),
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
for i, col := range statement.RefTable.PKColumns() {
|
||
|
|
var colName = statement.colName(col, statement.TableName())
|
||
|
|
statement.cond = statement.cond.And(builder.Eq{colName: statement.idParam[i]})
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|