You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
264 lines
7.9 KiB
264 lines
7.9 KiB
<?php
|
|
// +----------------------------------------------------------------------
|
|
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
|
|
// +----------------------------------------------------------------------
|
|
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
|
|
// +----------------------------------------------------------------------
|
|
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
|
|
// +----------------------------------------------------------------------
|
|
// | Author: liu21st <liu21st@gmail.com>
|
|
// +----------------------------------------------------------------------
|
|
|
|
namespace think\model\relation;
|
|
|
|
use think\db\Query;
|
|
use think\Exception;
|
|
use think\Loader;
|
|
use think\Model;
|
|
use think\model\Relation;
|
|
|
|
class MorphOne extends Relation
|
|
{
|
|
// 多态字段
|
|
protected $morphKey;
|
|
protected $morphType;
|
|
// 多态类型
|
|
protected $type;
|
|
|
|
/**
|
|
* 构造函数
|
|
* @access public
|
|
* @param Model $parent 上级模型对象
|
|
* @param string $model 模型名
|
|
* @param string $morphKey 关联外键
|
|
* @param string $morphType 多态字段名
|
|
* @param string $type 多态类型
|
|
*/
|
|
public function __construct(Model $parent, $model, $morphKey, $morphType, $type)
|
|
{
|
|
$this->parent = $parent;
|
|
$this->model = $model;
|
|
$this->type = $type;
|
|
$this->morphKey = $morphKey;
|
|
$this->morphType = $morphType;
|
|
$this->query = (new $model)->db();
|
|
}
|
|
|
|
/**
|
|
* 延迟获取关联数据
|
|
* @param string $subRelation 子关联名
|
|
* @param \Closure $closure 闭包查询条件
|
|
* @return false|\PDOStatement|string|\think\Collection
|
|
*/
|
|
public function getRelation($subRelation = '', $closure = null)
|
|
{
|
|
if ($closure) {
|
|
call_user_func_array($closure, [ & $this->query]);
|
|
}
|
|
$relationModel = $this->relation($subRelation)->find();
|
|
|
|
if ($relationModel) {
|
|
$relationModel->setParent(clone $this->parent);
|
|
}
|
|
|
|
return $relationModel;
|
|
}
|
|
|
|
/**
|
|
* 根据关联条件查询当前模型
|
|
* @access public
|
|
* @param string $operator 比较操作符
|
|
* @param integer $count 个数
|
|
* @param string $id 关联表的统计字段
|
|
* @param string $joinType JOIN类型
|
|
* @return Query
|
|
*/
|
|
public function has($operator = '>=', $count = 1, $id = '*', $joinType = 'INNER')
|
|
{
|
|
return $this->parent;
|
|
}
|
|
|
|
/**
|
|
* 根据关联条件查询当前模型
|
|
* @access public
|
|
* @param mixed $where 查询条件（数组或者闭包）
|
|
* @param mixed $fields 字段
|
|
* @return Query
|
|
*/
|
|
public function hasWhere($where = [], $fields = null)
|
|
{
|
|
throw new Exception('relation not support: hasWhere');
|
|
}
|
|
|
|
/**
|
|
* 预载入关联查询
|
|
* @access public
|
|
* @param array $resultSet 数据集
|
|
* @param string $relation 当前关联名
|
|
* @param string $subRelation 子关联名
|
|
* @param \Closure $closure 闭包
|
|
* @return void
|
|
*/
|
|
public function eagerlyResultSet(&$resultSet, $relation, $subRelation, $closure)
|
|
{
|
|
$morphType = $this->morphType;
|
|
$morphKey = $this->morphKey;
|
|
$type = $this->type;
|
|
$range = [];
|
|
foreach ($resultSet as $result) {
|
|
$pk = $result->getPk();
|
|
// 获取关联外键列表
|
|
if (isset($result->$pk)) {
|
|
$range[] = $result->$pk;
|
|
}
|
|
}
|
|
|
|
if (!empty($range)) {
|
|
$data = $this->eagerlyMorphToOne([
|
|
$morphKey => ['in', $range],
|
|
$morphType => $type,
|
|
], $relation, $subRelation, $closure);
|
|
// 关联属性名
|
|
$attr = Loader::parseName($relation);
|
|
// 关联数据封装
|
|
foreach ($resultSet as $result) {
|
|
if (!isset($data[$result->$pk])) {
|
|
$relationModel = null;
|
|
} else {
|
|
$relationModel = $data[$result->$pk];
|
|
$relationModel->setParent(clone $result);
|
|
$relationModel->isUpdate(true);
|
|
}
|
|
|
|
$result->setRelation($attr, $relationModel);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 预载入关联查询
|
|
* @access public
|
|
* @param Model $result 数据对象
|
|
* @param string $relation 当前关联名
|
|
* @param string $subRelation 子关联名
|
|
* @param \Closure $closure 闭包
|
|
* @return void
|
|
*/
|
|
public function eagerlyResult(&$result, $relation, $subRelation, $closure)
|
|
{
|
|
$pk = $result->getPk();
|
|
if (isset($result->$pk)) {
|
|
$pk = $result->$pk;
|
|
$data = $this->eagerlyMorphToOne([
|
|
$this->morphKey => $pk,
|
|
$this->morphType => $this->type,
|
|
], $relation, $subRelation, $closure);
|
|
|
|
if (isset($data[$pk])) {
|
|
$relationModel = $data[$pk];
|
|
$relationModel->setParent(clone $result);
|
|
$relationModel->isUpdate(true);
|
|
} else {
|
|
$relationModel = null;
|
|
}
|
|
|
|
$result->setRelation(Loader::parseName($relation), $relationModel);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 多态一对一 关联模型预查询
|
|
* @access public
|
|
* @param array $where 关联预查询条件
|
|
* @param string $relation 关联名
|
|
* @param string $subRelation 子关联
|
|
* @param bool|\Closure $closure 闭包
|
|
* @return array
|
|
*/
|
|
protected function eagerlyMorphToOne($where, $relation, $subRelation = '', $closure = false)
|
|
{
|
|
// 预载入关联查询 支持嵌套预载入
|
|
if ($closure) {
|
|
call_user_func_array($closure, [ & $this]);
|
|
}
|
|
$list = $this->query->where($where)->with($subRelation)->find();
|
|
$morphKey = $this->morphKey;
|
|
// 组装模型数据
|
|
$data = [];
|
|
foreach ($list as $set) {
|
|
$data[$set->$morphKey][] = $set;
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* 保存（新增）当前关联数据对象
|
|
* @access public
|
|
* @param mixed $data 数据 可以使用数组 关联模型对象 和 关联对象的主键
|
|
* @return Model|false
|
|
*/
|
|
public function save($data)
|
|
{
|
|
if ($data instanceof Model) {
|
|
$data = $data->getData();
|
|
}
|
|
|
|
// 保存关联表数据
|
|
$pk = $this->parent->getPk();
|
|
|
|
$data[$this->morphKey] = $this->parent->$pk;
|
|
$data[$this->morphType] = $this->type;
|
|
|
|
$model = new $this->model();
|
|
|
|
return $model->save() ? $model : false;
|
|
}
|
|
|
|
/**
|
|
* 创建关联对象实例
|
|
* @param array $data
|
|
* @return Model
|
|
*/
|
|
public function make($data = [])
|
|
{
|
|
if ($data instanceof Model) {
|
|
$data = $data->getData();
|
|
}
|
|
// 保存关联表数据
|
|
$pk = $this->parent->getPk();
|
|
|
|
$data[$this->morphKey] = $this->parent->$pk;
|
|
$data[$this->morphType] = $this->type;
|
|
|
|
return new $this->model($data);
|
|
}
|
|
|
|
/**
|
|
* 执行基础查询（进执行一次）
|
|
* @access protected
|
|
* @return void
|
|
*/
|
|
protected function baseQuery()
|
|
{
|
|
if (empty($this->baseQuery) && $this->parent->getData()) {
|
|
$pk = $this->parent->getPk();
|
|
$map[$this->morphKey] = $this->parent->$pk;
|
|
$map[$this->morphType] = $this->type;
|
|
$this->query->where($map);
|
|
$this->baseQuery = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 创建关联统计子查询
|
|
* @access public
|
|
* @param \Closure $closure 闭包
|
|
* @param string $name 统计数据别名
|
|
* @return string
|
|
*/
|
|
public function getRelationCountQuery($closure, &$name = null)
|
|
{
|
|
throw new Exception('relation not support: withCount');
|
|
}
|
|
}
|