671 lines
20 KiB
PHP
671 lines
20 KiB
PHP
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<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think\model\concern;
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use think\Collection;
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use think\db\Query;
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use think\Loader;
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use think\Model;
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use think\model\Relation;
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use think\model\relation\BelongsTo;
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use think\model\relation\BelongsToMany;
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use think\model\relation\HasMany;
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use think\model\relation\HasManyThrough;
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use think\model\relation\HasOne;
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use think\model\relation\MorphMany;
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use think\model\relation\MorphOne;
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use think\model\relation\MorphTo;
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/**
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* 模型关联处理
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*/
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trait RelationShip
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{
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/**
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* 父关联模型对象
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* @var object
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*/
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private $parent;
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/**
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* 模型关联数据
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* @var array
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*/
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private $relation = [];
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/**
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* 关联写入定义信息
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* @var array
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*/
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private $together;
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/**
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* 关联自动写入信息
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* @var array
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*/
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protected $relationWrite;
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/**
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* 设置父关联对象
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* @access public
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* @param Model $model 模型对象
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* @return $this
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*/
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public function setParent($model)
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{
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$this->parent = $model;
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return $this;
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}
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/**
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* 获取父关联对象
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* @access public
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* @return Model
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*/
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public function getParent()
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{
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return $this->parent;
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}
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/**
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* 获取当前模型的关联模型数据
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* @access public
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* @param string $name 关联方法名
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* @return mixed
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*/
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public function getRelation($name = null)
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{
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if (is_null($name)) {
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return $this->relation;
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} elseif (array_key_exists($name, $this->relation)) {
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return $this->relation[$name];
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}
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return;
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}
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/**
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* 设置关联数据对象值
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* @access public
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* @param string $name 属性名
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* @param mixed $value 属性值
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* @param array $data 数据
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* @return $this
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*/
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public function setRelation($name, $value, $data = [])
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{
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// 检测修改器
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$method = 'set' . Loader::parseName($name, 1) . 'Attr';
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if (method_exists($this, $method)) {
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$value = $this->$method($value, array_merge($this->data, $data));
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}
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$this->relation[$name] = $value;
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return $this;
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}
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/**
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* 关联数据写入
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* @access public
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* @param array|string $relation 关联
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* @return $this
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*/
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public function together($relation)
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{
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if (is_string($relation)) {
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$relation = explode(',', $relation);
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}
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$this->together = $relation;
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$this->checkAutoRelationWrite();
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return $this;
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}
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/**
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* 根据关联条件查询当前模型
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* @access public
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* @param string $relation 关联方法名
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* @param mixed $operator 比较操作符
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* @param integer $count 个数
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* @param string $id 关联表的统计字段
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* @param string $joinType JOIN类型
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* @return Query
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*/
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public static function has($relation, $operator = '>=', $count = 1, $id = '*', $joinType = 'INNER')
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{
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$relation = (new static())->$relation();
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if (is_array($operator) || $operator instanceof \Closure) {
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return $relation->hasWhere($operator);
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}
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return $relation->has($operator, $count, $id, $joinType);
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}
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/**
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* 根据关联条件查询当前模型
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* @access public
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* @param string $relation 关联方法名
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* @param mixed $where 查询条件（数组或者闭包）
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* @param mixed $fields 字段
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* @return Query
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*/
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public static function hasWhere($relation, $where = [], $fields = '*')
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{
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return (new static())->$relation()->hasWhere($where, $fields);
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}
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/**
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* 查询当前模型的关联数据
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* @access public
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* @param string|array $relations 关联名
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* @param array $withRelationAttr 关联获取器
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* @return $this
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*/
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public function relationQuery($relations, $withRelationAttr = [])
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{
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if (is_string($relations)) {
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$relations = explode(',', $relations);
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}
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foreach ($relations as $key => $relation) {
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$subRelation = '';
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$closure = null;
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if ($relation instanceof \Closure) {
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// 支持闭包查询过滤关联条件
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$closure = $relation;
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$relation = $key;
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}
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if (is_array($relation)) {
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$subRelation = $relation;
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$relation = $key;
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} elseif (strpos($relation, '.')) {
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list($relation, $subRelation) = explode('.', $relation, 2);
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}
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$method = Loader::parseName($relation, 1, false);
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$relationName = Loader::parseName($relation);
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$relationResult = $this->$method();
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if (isset($withRelationAttr[$relationName])) {
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$relationResult->getQuery()->withAttr($withRelationAttr[$relationName]);
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}
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$this->relation[$relation] = $relationResult->getRelation($subRelation, $closure);
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}
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return $this;
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}
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/**
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* 预载入关联查询 返回数据集
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* @access public
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* @param array $resultSet 数据集
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* @param string $relation 关联名
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* @param array $withRelationAttr 关联获取器
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* @param bool $join 是否为JOIN方式
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* @return array
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*/
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public function eagerlyResultSet(&$resultSet, $relation, $withRelationAttr = [], $join = false)
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{
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$relations = is_string($relation) ? explode(',', $relation) : $relation;
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foreach ($relations as $key => $relation) {
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$subRelation = '';
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$closure = null;
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if ($relation instanceof \Closure) {
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$closure = $relation;
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$relation = $key;
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}
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if (is_array($relation)) {
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$subRelation = $relation;
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$relation = $key;
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} elseif (strpos($relation, '.')) {
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list($relation, $subRelation) = explode('.', $relation, 2);
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}
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$relation = Loader::parseName($relation, 1, false);
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$relationName = Loader::parseName($relation);
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$relationResult = $this->$relation();
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if (isset($withRelationAttr[$relationName])) {
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$relationResult->getQuery()->withAttr($withRelationAttr[$relationName]);
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}
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$relationResult->eagerlyResultSet($resultSet, $relation, $subRelation, $closure, $join);
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}
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}
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/**
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* 预载入关联查询 返回模型对象
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* @access public
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* @param Model $result 数据对象
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* @param string $relation 关联名
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* @param array $withRelationAttr 关联获取器
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* @param bool $join 是否为JOIN方式
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* @return Model
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*/
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public function eagerlyResult(&$result, $relation, $withRelationAttr = [], $join = false)
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{
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$relations = is_string($relation) ? explode(',', $relation) : $relation;
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foreach ($relations as $key => $relation) {
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$subRelation = '';
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$closure = null;
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if ($relation instanceof \Closure) {
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$closure = $relation;
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$relation = $key;
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}
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if (is_array($relation)) {
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$subRelation = $relation;
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$relation = $key;
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} elseif (strpos($relation, '.')) {
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list($relation, $subRelation) = explode('.', $relation, 2);
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}
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$relation = Loader::parseName($relation, 1, false);
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$relationName = Loader::parseName($relation);
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$relationResult = $this->$relation();
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if (isset($withRelationAttr[$relationName])) {
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$relationResult->getQuery()->withAttr($withRelationAttr[$relationName]);
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}
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$relationResult->eagerlyResult($result, $relation, $subRelation, $closure, $join);
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}
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}
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/**
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* 关联统计
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* @access public
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* @param Model $result 数据对象
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* @param array $relations 关联名
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* @param string $aggregate 聚合查询方法
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* @param string $field 字段
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* @return void
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*/
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public function relationCount(&$result, $relations, $aggregate = 'sum', $field = '*')
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{
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foreach ($relations as $key => $relation) {
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$closure = $name = null;
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if ($relation instanceof \Closure) {
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$closure = $relation;
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$relation = $key;
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} elseif (is_string($key)) {
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$name = $relation;
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$relation = $key;
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}
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$relation = Loader::parseName($relation, 1, false);
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$count = $this->$relation()->relationCount($result, $closure, $aggregate, $field, $name);
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if (empty($name)) {
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$name = Loader::parseName($relation) . '_' . $aggregate;
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}
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$result->setAttr($name, $count);
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}
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}
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/**
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* HAS ONE 关联定义
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* @access public
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* @param string $model 模型名
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* @param string $foreignKey 关联外键
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* @param string $localKey 当前主键
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* @return HasOne
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*/
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public function hasOne($model, $foreignKey = '', $localKey = '')
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{
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// 记录当前关联信息
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$model = $this->parseModel($model);
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$localKey = $localKey ?: $this->getPk();
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$foreignKey = $foreignKey ?: $this->getForeignKey($this->name);
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return new HasOne($this, $model, $foreignKey, $localKey);
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}
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/**
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* BELONGS TO 关联定义
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* @access public
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* @param string $model 模型名
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* @param string $foreignKey 关联外键
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* @param string $localKey 关联主键
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* @return BelongsTo
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*/
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public function belongsTo($model, $foreignKey = '', $localKey = '')
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{
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// 记录当前关联信息
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$model = $this->parseModel($model);
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$foreignKey = $foreignKey ?: $this->getForeignKey((new $model)->getName());
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$localKey = $localKey ?: (new $model)->getPk();
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$trace = debug_backtrace(false, 2);
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$relation = Loader::parseName($trace[1]['function']);
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return new BelongsTo($this, $model, $foreignKey, $localKey, $relation);
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}
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/**
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* HAS MANY 关联定义
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* @access public
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* @param string $model 模型名
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* @param string $foreignKey 关联外键
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* @param string $localKey 当前主键
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* @return HasMany
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*/
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public function hasMany($model, $foreignKey = '', $localKey = '')
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{
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// 记录当前关联信息
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$model = $this->parseModel($model);
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$localKey = $localKey ?: $this->getPk();
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$foreignKey = $foreignKey ?: $this->getForeignKey($this->name);
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return new HasMany($this, $model, $foreignKey, $localKey);
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}
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/**
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* HAS MANY 远程关联定义
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* @access public
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* @param string $model 模型名
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* @param string $through 中间模型名
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|
|
* @param string $foreignKey 关联外键
|
||
|
|
* @param string $throughKey 关联外键
|
||
|
|
* @param string $localKey 当前主键
|
||
|
|
* @return HasManyThrough
|
||
|
|
*/
|
||
|
|
public function hasManyThrough($model, $through, $foreignKey = '', $throughKey = '', $localKey = '')
|
||
|
|
{
|
||
|
|
// 记录当前关联信息
|
||
|
|
$model = $this->parseModel($model);
|
||
|
|
$through = $this->parseModel($through);
|
||
|
|
$localKey = $localKey ?: $this->getPk();
|
||
|
|
$foreignKey = $foreignKey ?: $this->getForeignKey($this->name);
|
||
|
|
$throughKey = $throughKey ?: $this->getForeignKey((new $through)->getName());
|
||
|
|
|
||
|
|
return new HasManyThrough($this, $model, $through, $foreignKey, $throughKey, $localKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* BELONGS TO MANY 关联定义
|
||
|
|
* @access public
|
||
|
|
* @param string $model 模型名
|
||
|
|
* @param string $table 中间表名
|
||
|
|
* @param string $foreignKey 关联外键
|
||
|
|
* @param string $localKey 当前模型关联键
|
||
|
|
* @return BelongsToMany
|
||
|
|
*/
|
||
|
|
public function belongsToMany($model, $table = '', $foreignKey = '', $localKey = '')
|
||
|
|
{
|
||
|
|
// 记录当前关联信息
|
||
|
|
$model = $this->parseModel($model);
|
||
|
|
$name = Loader::parseName(basename(str_replace('\\', '/', $model)));
|
||
|
|
$table = $table ?: Loader::parseName($this->name) . '_' . $name;
|
||
|
|
$foreignKey = $foreignKey ?: $name . '_id';
|
||
|
|
$localKey = $localKey ?: $this->getForeignKey($this->name);
|
||
|
|
|
||
|
|
return new BelongsToMany($this, $model, $table, $foreignKey, $localKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* MORPH One 关联定义
|
||
|
|
* @access public
|
||
|
|
* @param string $model 模型名
|
||
|
|
* @param string|array $morph 多态字段信息
|
||
|
|
* @param string $type 多态类型
|
||
|
|
* @return MorphOne
|
||
|
|
*/
|
||
|
|
public function morphOne($model, $morph = null, $type = '')
|
||
|
|
{
|
||
|
|
// 记录当前关联信息
|
||
|
|
$model = $this->parseModel($model);
|
||
|
|
|
||
|
|
if (is_null($morph)) {
|
||
|
|
$trace = debug_backtrace(false, 2);
|
||
|
|
$morph = Loader::parseName($trace[1]['function']);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_array($morph)) {
|
||
|
|
list($morphType, $foreignKey) = $morph;
|
||
|
|
} else {
|
||
|
|
$morphType = $morph . '_type';
|
||
|
|
$foreignKey = $morph . '_id';
|
||
|
|
}
|
||
|
|
|
||
|
|
$type = $type ?: get_class($this);
|
||
|
|
|
||
|
|
return new MorphOne($this, $model, $foreignKey, $morphType, $type);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* MORPH MANY 关联定义
|
||
|
|
* @access public
|
||
|
|
* @param string $model 模型名
|
||
|
|
* @param string|array $morph 多态字段信息
|
||
|
|
* @param string $type 多态类型
|
||
|
|
* @return MorphMany
|
||
|
|
*/
|
||
|
|
public function morphMany($model, $morph = null, $type = '')
|
||
|
|
{
|
||
|
|
// 记录当前关联信息
|
||
|
|
$model = $this->parseModel($model);
|
||
|
|
|
||
|
|
if (is_null($morph)) {
|
||
|
|
$trace = debug_backtrace(false, 2);
|
||
|
|
$morph = Loader::parseName($trace[1]['function']);
|
||
|
|
}
|
||
|
|
|
||
|
|
$type = $type ?: get_class($this);
|
||
|
|
|
||
|
|
if (is_array($morph)) {
|
||
|
|
list($morphType, $foreignKey) = $morph;
|
||
|
|
} else {
|
||
|
|
$morphType = $morph . '_type';
|
||
|
|
$foreignKey = $morph . '_id';
|
||
|
|
}
|
||
|
|
|
||
|
|
return new MorphMany($this, $model, $foreignKey, $morphType, $type);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* MORPH TO 关联定义
|
||
|
|
* @access public
|
||
|
|
* @param string|array $morph 多态字段信息
|
||
|
|
* @param array $alias 多态别名定义
|
||
|
|
* @return MorphTo
|
||
|
|
*/
|
||
|
|
public function morphTo($morph = null, $alias = [])
|
||
|
|
{
|
||
|
|
$trace = debug_backtrace(false, 2);
|
||
|
|
$relation = Loader::parseName($trace[1]['function']);
|
||
|
|
|
||
|
|
if (is_null($morph)) {
|
||
|
|
$morph = $relation;
|
||
|
|
}
|
||
|
|
|
||
|
|
// 记录当前关联信息
|
||
|
|
if (is_array($morph)) {
|
||
|
|
list($morphType, $foreignKey) = $morph;
|
||
|
|
} else {
|
||
|
|
$morphType = $morph . '_type';
|
||
|
|
$foreignKey = $morph . '_id';
|
||
|
|
}
|
||
|
|
|
||
|
|
return new MorphTo($this, $morphType, $foreignKey, $alias, $relation);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 解析模型的完整命名空间
|
||
|
|
* @access protected
|
||
|
|
* @param string $model 模型名（或者完整类名）
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function parseModel($model)
|
||
|
|
{
|
||
|
|
if (false === strpos($model, '\\')) {
|
||
|
|
$path = explode('\\', static::class);
|
||
|
|
array_pop($path);
|
||
|
|
array_push($path, Loader::parseName($model, 1));
|
||
|
|
$model = implode('\\', $path);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $model;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 获取模型的默认外键名
|
||
|
|
* @access protected
|
||
|
|
* @param string $name 模型名
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function getForeignKey($name)
|
||
|
|
{
|
||
|
|
if (strpos($name, '\\')) {
|
||
|
|
$name = basename(str_replace('\\', '/', $name));
|
||
|
|
}
|
||
|
|
|
||
|
|
return Loader::parseName($name) . '_id';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 检查属性是否为关联属性 如果是则返回关联方法名
|
||
|
|
* @access protected
|
||
|
|
* @param string $attr 关联属性名
|
||
|
|
* @return string|false
|
||
|
|
*/
|
||
|
|
protected function isRelationAttr($attr)
|
||
|
|
{
|
||
|
|
$relation = Loader::parseName($attr, 1, false);
|
||
|
|
|
||
|
|
if (method_exists($this, $relation) && !method_exists('think\Model', $relation)) {
|
||
|
|
return $relation;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 智能获取关联模型数据
|
||
|
|
* @access protected
|
||
|
|
* @param Relation $modelRelation 模型关联对象
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
protected function getRelationData(Relation $modelRelation)
|
||
|
|
{
|
||
|
|
if ($this->parent && !$modelRelation->isSelfRelation() && get_class($this->parent) == get_class($modelRelation->getModel())) {
|
||
|
|
$value = $this->parent;
|
||
|
|
} else {
|
||
|
|
// 获取关联数据
|
||
|
|
$value = $modelRelation->getRelation();
|
||
|
|
}
|
||
|
|
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 关联数据自动写入检查
|
||
|
|
* @access protected
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function checkAutoRelationWrite()
|
||
|
|
{
|
||
|
|
foreach ($this->together as $key => $name) {
|
||
|
|
if (is_array($name)) {
|
||
|
|
if (key($name) === 0) {
|
||
|
|
$this->relationWrite[$key] = [];
|
||
|
|
// 绑定关联属性
|
||
|
|
foreach ((array) $name as $val) {
|
||
|
|
if (isset($this->data[$val])) {
|
||
|
|
$this->relationWrite[$key][$val] = $this->data[$val];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// 直接传入关联数据
|
||
|
|
$this->relationWrite[$key] = $name;
|
||
|
|
}
|
||
|
|
} elseif (isset($this->relation[$name])) {
|
||
|
|
$this->relationWrite[$name] = $this->relation[$name];
|
||
|
|
} elseif (isset($this->data[$name])) {
|
||
|
|
$this->relationWrite[$name] = $this->data[$name];
|
||
|
|
unset($this->data[$name]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 自动关联数据更新（针对一对一关联）
|
||
|
|
* @access protected
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function autoRelationUpdate()
|
||
|
|
{
|
||
|
|
foreach ($this->relationWrite as $name => $val) {
|
||
|
|
if ($val instanceof Model) {
|
||
|
|
$val->isUpdate()->save();
|
||
|
|
} else {
|
||
|
|
$model = $this->getRelation($name);
|
||
|
|
if ($model instanceof Model) {
|
||
|
|
$model->isUpdate()->save($val);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 自动关联数据写入（针对一对一关联）
|
||
|
|
* @access protected
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function autoRelationInsert()
|
||
|
|
{
|
||
|
|
foreach ($this->relationWrite as $name => $val) {
|
||
|
|
$method = Loader::parseName($name, 1, false);
|
||
|
|
$this->$method()->save($val);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 自动关联数据删除（支持一对一及一对多关联）
|
||
|
|
* @access protected
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function autoRelationDelete()
|
||
|
|
{
|
||
|
|
foreach ($this->relationWrite as $key => $name) {
|
||
|
|
$name = is_numeric($key) ? $name : $key;
|
||
|
|
$result = $this->getRelation($name);
|
||
|
|
|
||
|
|
if ($result instanceof Model) {
|
||
|
|
$result->delete();
|
||
|
|
} elseif ($result instanceof Collection) {
|
||
|
|
foreach ($result as $model) {
|
||
|
|
$model->delete();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|