338 lines
10 KiB
PHP
338 lines
10 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 think\db\Query;
|
||
use think\Exception;
|
||
use think\Loader;
|
||
use think\Model;
|
||
use think\model\Relation;
|
||
|
||
/**
|
||
* Class OneToOne
|
||
* @package think\model\relation
|
||
*
|
||
*/
|
||
abstract class OneToOne extends Relation
|
||
{
|
||
// 预载入方式 0 -JOIN 1 -IN
|
||
protected $eagerlyType = 1;
|
||
// 当前关联的JOIN类型
|
||
protected $joinType;
|
||
// 要绑定的属性
|
||
protected $bindAttr = [];
|
||
// 关联方法名
|
||
protected $relation;
|
||
|
||
/**
|
||
* 设置join类型
|
||
* @access public
|
||
* @param string $type JOIN类型
|
||
* @return $this
|
||
*/
|
||
public function joinType($type)
|
||
{
|
||
$this->joinType = $type;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 预载入关联查询（JOIN方式）
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @param string $relation 关联名
|
||
* @param string $subRelation 子关联
|
||
* @param \Closure $closure 闭包条件
|
||
* @param bool $first
|
||
* @return void
|
||
*/
|
||
public function eagerly(Query $query, $relation, $subRelation, $closure, $first)
|
||
{
|
||
$name = Loader::parseName(basename(str_replace('\\', '/', get_class($query->getModel()))));
|
||
|
||
if ($first) {
|
||
$table = $query->getTable();
|
||
$query->table([$table => $name]);
|
||
if ($query->getOptions('field')) {
|
||
$field = $query->getOptions('field');
|
||
$query->removeOption('field');
|
||
} else {
|
||
$field = true;
|
||
}
|
||
$query->field($field, false, $table, $name);
|
||
$field = null;
|
||
}
|
||
|
||
// 预载入封装
|
||
$joinTable = $this->query->getTable();
|
||
$joinAlias = $relation;
|
||
$query->via($joinAlias);
|
||
|
||
if ($this instanceof BelongsTo) {
|
||
$query->join([$joinTable => $joinAlias], $name . '.' . $this->foreignKey . '=' . $joinAlias . '.' . $this->localKey, $this->joinType);
|
||
} else {
|
||
$query->join([$joinTable => $joinAlias], $name . '.' . $this->localKey . '=' . $joinAlias . '.' . $this->foreignKey, $this->joinType);
|
||
}
|
||
|
||
if ($closure) {
|
||
// 执行闭包查询
|
||
call_user_func_array($closure, [ & $query]);
|
||
// 使用withField指定获取关联的字段，如
|
||
// $query->where(['id'=>1])->withField('id,name');
|
||
if ($query->getOptions('with_field')) {
|
||
$field = $query->getOptions('with_field');
|
||
$query->removeOption('with_field');
|
||
}
|
||
} elseif (isset($this->option['field'])) {
|
||
$field = $this->option['field'];
|
||
}
|
||
$query->field(isset($field) ? $field : true, false, $joinTable, $joinAlias, $relation . '__');
|
||
}
|
||
|
||
/**
|
||
* 预载入关联查询（数据集）
|
||
* @param array $resultSet
|
||
* @param string $relation
|
||
* @param string $subRelation
|
||
* @param \Closure $closure
|
||
* @return mixed
|
||
*/
|
||
abstract protected function eagerlySet(&$resultSet, $relation, $subRelation, $closure);
|
||
|
||
/**
|
||
* 预载入关联查询（数据）
|
||
* @param Model $result
|
||
* @param string $relation
|
||
* @param string $subRelation
|
||
* @param \Closure $closure
|
||
* @return mixed
|
||
*/
|
||
abstract protected function eagerlyOne(&$result, $relation, $subRelation, $closure);
|
||
|
||
/**
|
||
* 预载入关联查询（数据集）
|
||
* @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)
|
||
{
|
||
if (1 == $this->eagerlyType) {
|
||
// IN查询
|
||
$this->eagerlySet($resultSet, $relation, $subRelation, $closure);
|
||
} else {
|
||
// 模型关联组装
|
||
foreach ($resultSet as $result) {
|
||
$this->match($this->model, $relation, $result);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 预载入关联查询（数据）
|
||
* @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)
|
||
{
|
||
if (1 == $this->eagerlyType) {
|
||
// IN查询
|
||
$this->eagerlyOne($result, $relation, $subRelation, $closure);
|
||
} else {
|
||
// 模型关联组装
|
||
$this->match($this->model, $relation, $result);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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();
|
||
}
|
||
$model = new $this->model;
|
||
// 保存关联表数据
|
||
$data[$this->foreignKey] = $this->parent->{$this->localKey};
|
||
return $model->save($data) ? $model : false;
|
||
}
|
||
|
||
/**
|
||
* 设置预载入方式
|
||
* @access public
|
||
* @param integer $type 预载入方式 0 JOIN查询 1 IN查询
|
||
* @return $this
|
||
*/
|
||
public function setEagerlyType($type)
|
||
{
|
||
$this->eagerlyType = $type;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 获取预载入方式
|
||
* @access public
|
||
* @return integer
|
||
*/
|
||
public function getEagerlyType()
|
||
{
|
||
return $this->eagerlyType;
|
||
}
|
||
|
||
/**
|
||
* 绑定关联表的属性到父模型属性
|
||
* @access public
|
||
* @param mixed $attr 要绑定的属性列表
|
||
* @return $this
|
||
*/
|
||
public function bind($attr)
|
||
{
|
||
if (is_string($attr)) {
|
||
$attr = explode(',', $attr);
|
||
}
|
||
$this->bindAttr = $attr;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 获取绑定属性
|
||
* @access public
|
||
* @return array
|
||
*/
|
||
public function getBindAttr()
|
||
{
|
||
return $this->bindAttr;
|
||
}
|
||
|
||
/**
|
||
* 关联统计
|
||
* @access public
|
||
* @param Model $result 数据对象
|
||
* @param \Closure $closure 闭包
|
||
* @return integer
|
||
*/
|
||
public function relationCount($result, $closure)
|
||
{
|
||
}
|
||
|
||
/**
|
||
* 一对一 关联模型预查询拼装
|
||
* @access public
|
||
* @param string $model 模型名称
|
||
* @param string $relation 关联名
|
||
* @param Model $result 模型对象实例
|
||
* @return void
|
||
*/
|
||
protected function match($model, $relation, &$result)
|
||
{
|
||
// 重新组装模型数据
|
||
foreach ($result->getData() as $key => $val) {
|
||
if (strpos($key, '__')) {
|
||
list($name, $attr) = explode('__', $key, 2);
|
||
if ($name == $relation) {
|
||
$list[$name][$attr] = $val;
|
||
unset($result->$key);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (isset($list[$relation])) {
|
||
$relationModel = new $model($list[$relation]);
|
||
$relationModel->setParent(clone $result);
|
||
$relationModel->isUpdate(true);
|
||
|
||
if (!empty($this->bindAttr)) {
|
||
$this->bindAttr($relationModel, $result, $this->bindAttr);
|
||
}
|
||
} else {
|
||
$relationModel = null;
|
||
}
|
||
$result->setRelation(Loader::parseName($relation), $relationModel);
|
||
}
|
||
|
||
/**
|
||
* 绑定关联属性到父模型
|
||
* @access protected
|
||
* @param Model $model 关联模型对象
|
||
* @param Model $result 父模型对象
|
||
* @param array $bindAttr 绑定属性
|
||
* @return void
|
||
* @throws Exception
|
||
*/
|
||
protected function bindAttr($model, &$result, $bindAttr)
|
||
{
|
||
foreach ($bindAttr as $key => $attr) {
|
||
$key = is_numeric($key) ? $attr : $key;
|
||
if (isset($result->$key)) {
|
||
throw new Exception('bind attr has exists:' . $key);
|
||
} else {
|
||
$result->setAttr($key, $model ? $model->$attr : null);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 一对一 关联模型预查询（IN方式）
|
||
* @access public
|
||
* @param object $model 关联模型对象
|
||
* @param array $where 关联预查询条件
|
||
* @param string $key 关联键名
|
||
* @param string $relation 关联名
|
||
* @param string $subRelation 子关联
|
||
* @param bool|\Closure $closure
|
||
* @return array
|
||
*/
|
||
protected function eagerlyWhere($model, $where, $key, $relation, $subRelation = '', $closure = false)
|
||
{
|
||
$this->baseQuery = true;
|
||
|
||
// 预载入关联查询 支持嵌套预载入
|
||
if ($closure) {
|
||
call_user_func_array($closure, [ & $model]);
|
||
if ($field = $model->getOptions('with_field')) {
|
||
$model->field($field)->removeOption('with_field');
|
||
}
|
||
}
|
||
$list = $model->where($where)->with($subRelation)->select();
|
||
|
||
// 组装模型数据
|
||
$data = [];
|
||
foreach ($list as $set) {
|
||
$data[$set->$key] = $set;
|
||
}
|
||
return $data;
|
||
}
|
||
|
||
/**
|
||
* 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');
|
||
}
|
||
}
|