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初始化仓库

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wangxiaowei
2025-04-22 14:09:52 +08:00
commit 8b100110bb
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316
vendor/topthink/think-orm/src/model/relation/HasOne.php vendored Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2023 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare(strict_types=1);
namespace think\model\relation;
use Closure;
use think\db\BaseQuery as Query;
use think\Model;
/**
* HasOne 关联类.
*/
class HasOne extends OneToOne
{
/**
* 架构函数.
*
* @param Model $parent 上级模型对象
* @param string $model 模型名
* @param string $foreignKey 关联外键
* @param string $localKey 当前模型主键
*/
public function __construct(Model $parent, string $model, string $foreignKey, string $localKey)
{
$this->parent = $parent;
$this->model = $model;
$this->foreignKey = $foreignKey;
$this->localKey = $localKey;
$this->query = (new $model())->db();
if (get_class($parent) == $model) {
$this->selfRelation = true;
}
}
/**
* 延迟获取关联数据.
*
* @param array $subRelation 子关联名
* @param Closure $closure 闭包查询条件
*
* @return Model
*/
public function getRelation(array $subRelation = [], Closure $closure = null)
{
$localKey = $this->localKey;
if ($closure) {
$closure($this->query);
}
// 判断关联类型执行查询
$relationModel = $this->query
->removeWhereField($this->foreignKey)
->where($this->foreignKey, $this->parent->$localKey)
->relation($subRelation)
->find();
if ($relationModel) {
if (!empty($this->bindAttr)) {
// 绑定关联属性
$this->bindAttr($this->parent, $relationModel);
}
$relationModel->setParent(clone $this->parent);
} else {
$default = $this->query->getOptions('default_model');
$relationModel = $this->getDefaultModel($default);
}
return $relationModel;
}
/**
* 创建关联统计子查询.
*
* @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 string
*/
public function getRelationCountQuery(Closure $closure = null, string $aggregate = 'count', string $field = '*', string &$name = null): string
{
if ($closure) {
$closure($this->query, $name);
}
return $this->query
->whereExp($this->foreignKey, '=' . $this->parent->getTable() . '.' . $this->localKey)
->fetchSql()
->$aggregate($field);
}
/**
* 关联统计
*
* @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 int
*/
public function relationCount(Model $result, Closure $closure = null, string $aggregate = 'count', string $field = '*', string &$name = null)
{
$localKey = $this->localKey;
if (!isset($result->$localKey)) {
return 0;
}
if ($closure) {
$closure($this->query, $name);
}
return $this->query
->where($this->foreignKey, '=', $result->$localKey)
->$aggregate($field);
}
/**
* 根据关联条件查询当前模型.
*
* @param string $operator 比较操作符
* @param int $count 个数
* @param string $id 关联表的统计字段
* @param string $joinType JOIN类型
* @param Query $query Query对象
*
* @return Query
*/
public function has(string $operator = '>=', int $count = 1, string $id = '*', string $joinType = '', Query $query = null): Query
{
$table = $this->query->getTable();
$model = class_basename($this->parent);
$relation = class_basename($this->model);
$localKey = $this->localKey;
$foreignKey = $this->foreignKey;
$softDelete = $this->query->getOptions('soft_delete');
$query = $query ?: $this->parent->db()->alias($model);
return $query->whereExists(function ($query) use ($table, $model, $relation, $localKey, $foreignKey, $softDelete) {
$query->table([$table => $relation])
->field($relation . '.' . $foreignKey)
->whereExp($model . '.' . $localKey, '=' . $relation . '.' . $foreignKey)
->when($softDelete, function ($query) use ($softDelete, $relation) {
$query->where($relation . strstr($softDelete[0], '.'), '=' == $softDelete[1][0] ? $softDelete[1][1] : null);
});
});
}
/**
* 根据关联条件查询当前模型.
*
* @param mixed $where 查询条件（数组或者闭包）
* @param mixed $fields 字段
* @param string $joinType JOIN类型
* @param Query $query Query对象
*
* @return Query
*/
public function hasWhere($where = [], $fields = null, string $joinType = '', Query $query = null): Query
{
$table = $this->query->getTable();
$model = class_basename($this->parent);
$relation = class_basename($this->model);
if (is_array($where)) {
$this->getQueryWhere($where, $relation);
} elseif ($where instanceof Query) {
$where->via($relation);
} elseif ($where instanceof Closure) {
$where($this->query->via($relation));
$where = $this->query;
}
$fields = $this->getRelationQueryFields($fields, $model);
$softDelete = $this->query->getOptions('soft_delete');
$query = $query ?: $this->parent->db();
return $query->alias($model)
->field($fields)
->join([$table => $relation], $model . '.' . $this->localKey . '=' . $relation . '.' . $this->foreignKey, $joinType ?: $this->joinType)
->when($softDelete, function ($query) use ($softDelete, $relation) {
$query->where($relation . strstr($softDelete[0], '.'), '=' == $softDelete[1][0] ? $softDelete[1][1] : null);
})
->where($where);
}
/**
* 预载入关联查询（数据集）.
*
* @param array $resultSet 数据集
* @param string $relation 当前关联名
* @param array $subRelation 子关联名
* @param Closure $closure 闭包
* @param array $cache 关联缓存
*
* @return void
*/
protected function eagerlySet(array &$resultSet, string $relation, array $subRelation = [], Closure $closure = null, array $cache = []): void
{
$localKey = $this->localKey;
$foreignKey = $this->foreignKey;
$range = [];
foreach ($resultSet as $result) {
// 获取关联外键列表
if (isset($result->$localKey)) {
$range[] = $result->$localKey;
}
}
if (!empty($range)) {
$this->query->removeWhereField($foreignKey);
$default = $this->query->getOptions('default_model');
$defaultModel = $this->getDefaultModel($default);
$data = $this->eagerlyWhere([
[$foreignKey, 'in', $range],
], $foreignKey, $subRelation, $closure, $cache);
// 关联数据封装
foreach ($resultSet as $result) {
// 关联模型
if (!isset($data[$result->$localKey])) {
$relationModel = $defaultModel;
} else {
$relationModel = $data[$result->$localKey];
$relationModel->setParent(clone $result);
$relationModel->exists(true);
}
// 设置关联属性
$result->setRelation($relation, $relationModel);
if (!empty($this->bindAttr)) {
// 绑定关联属性
$this->bindAttr($result, $relationModel);
$result->hidden([$relation], true);
}
}
}
}
/**
* 预载入关联查询（数据）.
*
* @param Model $result 数据对象
* @param string $relation 当前关联名
* @param array $subRelation 子关联名
* @param Closure $closure 闭包
* @param array $cache 关联缓存
*
* @return void
*/
protected function eagerlyOne(Model $result, string $relation, array $subRelation = [], Closure $closure = null, array $cache = []): void
{
$localKey = $this->localKey;
$foreignKey = $this->foreignKey;
$this->query->removeWhereField($foreignKey);
$data = $this->eagerlyWhere([
[$foreignKey, '=', $result->$localKey],
], $foreignKey, $subRelation, $closure, $cache);
// 关联模型
if (!isset($data[$result->$localKey])) {
$default = $this->query->getOptions('default_model');
$relationModel = $this->getDefaultModel($default);
} else {
$relationModel = $data[$result->$localKey];
$relationModel->setParent(clone $result);
$relationModel->exists(true);
}
// 设置关联属性
$result->setRelation($relation, $relationModel);
if (!empty($this->bindAttr)) {
// 绑定关联属性
$this->bindAttr($result, $relationModel);
$result->hidden([$relation], true);
}
}
/**
* 执行基础查询（仅执行一次）.
*
* @return void
*/
protected function baseQuery(): void
{
if (empty($this->baseQuery)) {
if (isset($this->parent->{$this->localKey})) {
// 关联查询带入关联条件
$this->query->where($this->foreignKey, '=', $this->parent->{$this->localKey});
}
$this->baseQuery = true;
}
}
}