343 lines
9.6 KiB
PHP
343 lines
9.6 KiB
PHP
|
<?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 Closure;
|
||
|
|
use think\db\Query;
|
||
|
|
use think\Exception;
|
||
|
|
use think\Loader;
|
||
|
|
use think\Model;
|
||
|
|
use think\model\Relation;
|
||
|
|
|
||
|
|
class MorphMany extends Relation
|
||
|
|
{
|
||
|
|
// 多态字段
|
||
|
|
protected $morphKey;
|
||
|
|
protected $morphType;
|
||
|
|
// 多态类型
|
||
|
|
protected $type;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 架构函数
|
||
|
|
* @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
|
||
|
|
* @access public
|
||
|
|
* @param string $subRelation 子关联名
|
||
|
|
* @param \Closure $closure 闭包查询条件
|
||
|
|
* @return \think\Collection
|
||
|
|
*/
|
||
|
|
public function getRelation($subRelation = '', $closure = null)
|
||
|
|
{
|
||
|
|
if ($closure instanceof Closure) {
|
||
|
|
$closure($this->query);
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->baseQuery();
|
||
|
|
|
||
|
|
$list = $this->query->relation($subRelation)->select();
|
||
|
|
$parent = clone $this->parent;
|
||
|
|
|
||
|
|
foreach ($list as &$model) {
|
||
|
|
$model->setParent($parent);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $list;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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')
|
||
|
|
{
|
||
|
|
throw new Exception('relation not support: has');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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)) {
|
||
|
|
$where = [
|
||
|
|
[$morphKey, 'in', $range],
|
||
|
|
[$morphType, '=', $type],
|
||
|
|
];
|
||
|
|
$data = $this->eagerlyMorphToMany($where, $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])) {
|
||
|
|
$data[$result->$pk] = [];
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($data[$result->$pk] as &$relationModel) {
|
||
|
|
$relationModel->setParent(clone $result);
|
||
|
|
$relationModel->isUpdate(true);
|
||
|
|
}
|
||
|
|
|
||
|
|
$result->setRelation($attr, $this->resultSetBuild($data[$result->$pk]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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)) {
|
||
|
|
$key = $result->$pk;
|
||
|
|
$where = [
|
||
|
|
[$this->morphKey, '=', $key],
|
||
|
|
[$this->morphType, '=', $this->type],
|
||
|
|
];
|
||
|
|
$data = $this->eagerlyMorphToMany($where, $relation, $subRelation, $closure);
|
||
|
|
|
||
|
|
if (!isset($data[$key])) {
|
||
|
|
$data[$key] = [];
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($data[$key] as &$relationModel) {
|
||
|
|
$relationModel->setParent(clone $result);
|
||
|
|
$relationModel->isUpdate(true);
|
||
|
|
}
|
||
|
|
|
||
|
|
$result->setRelation(Loader::parseName($relation), $this->resultSetBuild($data[$key]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 关联统计
|
||
|
|
* @access public
|
||
|
|
* @param Model $result 数据对象
|
||
|
|
* @param \Closure $closure 闭包
|
||
|
|
* @param string $aggregate 聚合查询方法
|
||
|
|
* @param string $field 字段
|
||
|
|
* @param string $name 统计字段别名
|
||
|
|
* @return integer
|
||
|
|
*/
|
||
|
|
public function relationCount($result, $closure, $aggregate = 'count', $field = '*', &$name = '')
|
||
|
|
{
|
||
|
|
$pk = $result->getPk();
|
||
|
|
|
||
|
|
if (!isset($result->$pk)) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($closure instanceof Closure) {
|
||
|
|
$return = $closure($this->query);
|
||
|
|
|
||
|
|
if ($return && is_string($return)) {
|
||
|
|
$name = $return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->query
|
||
|
|
->where([
|
||
|
|
[$this->morphKey, '=', $result->$pk],
|
||
|
|
[$this->morphType, '=', $this->type],
|
||
|
|
])
|
||
|
|
->$aggregate($field);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 获取关联统计子查询
|
||
|
|
* @access public
|
||
|
|
* @param \Closure $closure 闭包
|
||
|
|
* @param string $aggregate 聚合查询方法
|
||
|
|
* @param string $field 字段
|
||
|
|
* @param string $aggregateAlias 聚合字段别名
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getRelationCountQuery($closure, $aggregate = 'count', $field = '*', &$aggregateAlias = '')
|
||
|
|
{
|
||
|
|
if ($closure instanceof Closure) {
|
||
|
|
$return = $closure($this->query);
|
||
|
|
|
||
|
|
if ($return && is_string($return)) {
|
||
|
|
$aggregateAlias = $return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->query
|
||
|
|
->whereExp($this->morphKey, '=' . $this->parent->getTable() . '.' . $this->parent->getPk())
|
||
|
|
->where($this->morphType, '=', $this->type)
|
||
|
|
->fetchSql()
|
||
|
|
->$aggregate($field);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 多态一对多 关联模型预查询
|
||
|
|
* @access protected
|
||
|
|
* @param array $where 关联预查询条件
|
||
|
|
* @param string $relation 关联名
|
||
|
|
* @param string $subRelation 子关联
|
||
|
|
* @param \Closure $closure 闭包
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected function eagerlyMorphToMany($where, $relation, $subRelation = '', $closure = null)
|
||
|
|
{
|
||
|
|
// 预载入关联查询 支持嵌套预载入
|
||
|
|
$this->query->removeOption('where');
|
||
|
|
|
||
|
|
if ($closure instanceof Closure) {
|
||
|
|
$closure($this->query);
|
||
|
|
}
|
||
|
|
|
||
|
|
$list = $this->query->where($where)->with($subRelation)->select();
|
||
|
|
$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 $data 数据
|
||
|
|
* @return Model|false
|
||
|
|
*/
|
||
|
|
public function save($data)
|
||
|
|
{
|
||
|
|
$model = $this->make();
|
||
|
|
|
||
|
|
return $model->save($data) ? $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);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 批量保存当前关联数据对象
|
||
|
|
* @access public
|
||
|
|
* @param array $dataSet 数据集
|
||
|
|
* @return array|false
|
||
|
|
*/
|
||
|
|
public function saveAll(array $dataSet)
|
||
|
|
{
|
||
|
|
$result = [];
|
||
|
|
|
||
|
|
foreach ($dataSet as $key => $data) {
|
||
|
|
$result[] = $this->save($data);
|
||
|
|
}
|
||
|
|
|
||
|
|
return empty($result) ? false : $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 执行基础查询（仅执行一次）
|
||
|
|
* @access protected
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function baseQuery()
|
||
|
|
{
|
||
|
|
if (empty($this->baseQuery) && $this->parent->getData()) {
|
||
|
|
$pk = $this->parent->getPk();
|
||
|
|
|
||
|
|
$this->query->where([
|
||
|
|
[$this->morphKey, '=', $this->parent->$pk],
|
||
|
|
[$this->morphType, '=', $this->type],
|
||
|
|
]);
|
||
|
|
|
||
|
|
$this->baseQuery = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|