HasManyThrough::eagerlyWhere() - Code Metrics - Inspection of "远程一对一和一对多增加预载入支持" - top-think/framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed
Push — 6.0 ( 6faeca...d95081 )

by liu
created 2019-06-04 06:11 UTC
HasManyThrough::eagerlyWhere() A

↳ Parent: HasManyThrough
Complexity

Conditions	3
Paths	4
Size

Total Lines	21
Code Lines	10
Duplication

Lines	0
Ratio	0 %
Code Coverage

Tests	0
CRAP Score	12
Importance

Changes
Metric	Value
cc	3
eloc	10
nc	4
nop	5
dl	0
loc	21
ccs	0
cts	11
cp	0
crap	12
rs	9.9332
c	0
b	0
f	0
<?php
// +----------------------------------------------------------------------

// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <[email protected]>
// +----------------------------------------------------------------------

namespace think\model\relation;

use Closure;
use think\App;
use think\Collection;
use think\db\Query;
use think\Exception;
use think\Model;
use think\model\Relation;

/**
 * 远程一对多关联类
 */

class HasManyThrough extends Relation
{
    /**
     * 中间关联表外键
     * @var string
     */
    protected $throughKey;

    /**
     * 中间主键
     * @var string
     */
    protected $throughPk;

    /**
     * 中间表查询对象
     * @var Query
     */
    protected $through;

    /**
     * 架构函数
     * @access public
     * @param  Model  $parent     上级模型对象
     * @param  string $model      模型名
     * @param  string $through    中间模型名
     * @param  string $foreignKey 关联外键
     * @param  string $throughKey 关联外键
     * @param  string $localKey   当前主键
     * @param  string $throughPk  中间表主键
     */
    public function __construct(Model $parent, string $model, string $through, string $foreignKey, string $throughKey, string $localKey, string $throughPk)
    {
        $this->parent     = $parent;
        $this->model      = $model;
        $this->through    = (new $through)->db();
        $this->foreignKey = $foreignKey;
        $this->throughKey = $throughKey;
        $this->localKey   = $localKey;
        $this->throughPk  = $throughPk;
        $this->query      = (new $model)->db();
    }

    /**
     * 延迟获取关联数据
     * @access public
     * @param  array   $subRelation 子关联名
     * @param  Closure $closure     闭包查询条件
     * @return Collection
     */
    public function getRelation(array $subRelation = [], \Closure $closure = null): Collection
    {
        if ($closure) {
            $closure($this->query);
        }

        $this->baseQuery();

        return $this->query->relation($subRelation)

            ->select()
            ->setParent(clone $this->parent);
            ->/** @scrutinizer ignore-call */ setParent(clone $this->parent);
    }

    /**
     * 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(string $operator = '>=', int $count = 1, string $id = '*', $joinType = '')
    public function has(string $operator = '>=', /** @scrutinizer ignore-unused */ int $count = 1, string $id = '*', $joinType = '')
    {
        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

     * @param  string $joinType JOIN类型
     * @return Query
     */
    public function hasWhere($where = [], $fields = null, $joinType = '')
    public function hasWhere(/** @scrutinizer ignore-unused */ $where = [], $fields = null, $joinType = '')
    {
        throw new Exception('relation not support: hasWhere');
    }

    /**
     * 预载入关联查询（数据集）
     * @access protected
     * @param  array   $resultSet   数据集
     * @param  string  $relation    当前关联名
     * @param  array   $subRelation 子关联名
     * @param  Closure $closure     闭包
     * @return void
     */
    public function eagerlyResultSet(array &$resultSet, string $relation, array $subRelation = [], Closure $closure = null): 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);

            $data = $this->eagerlyWhere([

                [$this->foreignKey, 'in', $range],
            ], $foreignKey, $relation, $subRelation, $closure);
someFunctionCall(
    $firstArgument,
    $secondArgument,
    $thirdArgument
); // Closing parenthesis on a new line.

            // 关联属性名
            $attr = App::parseName($relation);

            // 关联数据封装
            foreach ($resultSet as $result) {
                $pk = $result->$localKey;
                if (!isset($data[$pk])) {
                    $data[$pk] = [];
                }

                // 设置关联属性
                $result->setRelation($attr, $this->resultSetBuild($data[$pk], clone $this->parent));
            }
        }
    }

    /**
     * 预载入关联查询（数据）
     * @access protected
     * @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
     * @return void
     */
    public function eagerlyResult(Model $result, string $relation, array $subRelation = [], Closure $closure = null): void
    {
        $localKey   = $this->localKey;
        $foreignKey = $this->foreignKey;
        $pk         = $result->$localKey;

        $this->query->removeWhereField($foreignKey);

        $data = $this->eagerlyWhere([

            [$foreignKey, '=', $pk],
        ], $foreignKey, $relation, $subRelation, $closure);
someFunctionCall(
    $firstArgument,
    $secondArgument,
    $thirdArgument
); // Closing parenthesis on a new line.

        // 关联数据封装
        if (!isset($data[$pk])) {
            $data[$pk] = [];
        }

        $result->setRelation(App::parseName($relation), $this->resultSetBuild($data[$pk], clone $this->parent));
    }

    /**
     * 关联模型预查询
     * @access public
     * @param  array   $where       关联预查询条件
     * @param  string  $key         关联键名
     * @param  string  $relation    关联名
     * @param  array   $subRelation 子关联
     * @param  Closure $closure

     * @return array
     */
    protected function eagerlyWhere(array $where, string $key, string $relation, array $subRelation = [], Closure $closure = null)
    protected function eagerlyWhere(array $where, /** @scrutinizer ignore-unused */ string $key, string $relation, array $subRelation = [], Closure $closure = null)
    {
        // 预载入关联查询 支持嵌套预载入
        $throughList = $this->through->where($where)->select();
        $keys        = $throughList->column($this->throughPk, $this->throughPk);

        if ($closure) {
            $closure($this->query);
        }

        $list = $this->query->where($this->throughKey, 'in', $keys)->select();

        // 组装模型数据
        $data = [];
        $keys = $throughList->column($this->foreignKey, $this->throughPk);

        foreach ($list as $set) {
            $data[$keys[$set->{$this->throughKey}]][] = $set;
        }

        return $data;
    }

    /**
     * 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

     * @return integer
     */
    public function relationCount(Model $result, Closure $closure, string $aggregate = 'count', string $field = '*')
    public function relationCount(/** @scrutinizer ignore-unused */ Model $result, Closure $closure, string $aggregate = 'count', string $field = '*')
    {}


    /**
     * 执行基础查询（仅执行一次）
     * @access protected
     * @return void
     */
    protected function baseQuery(): void
    {
        if (empty($this->baseQuery) && $this->parent->getData()) {
            $alias        = App::parseName(App::classBaseName($this->model));
            $throughTable = $this->through->getTable();
            $pk           = $this->throughPk;
            $throughKey   = $this->throughKey;
            $modelTable   = $this->parent->getTable();
            $modelTable   = $this->parent->getTable();
            $fields       = $this->getQueryFields($alias);

            $this->query
                ->field($fields)
                ->alias($alias)
                ->join($throughTable, $throughTable . '.' . $pk . '=' . $alias . '.' . $throughKey)
                ->join($modelTable, $modelTable . '.' . $this->localKey . '=' . $throughTable . '.' . $this->foreignKey)
                ->where($throughTable . '.' . $this->foreignKey, $this->parent->{$this->localKey});

            $this->baseQuery = true;
        }
    }

}

top-think / framework

Push — 6.0 ( 6faeca...d95081 )

HasManyThrough::eagerlyWhere() A

Complexity

Size

Duplication

Code Coverage

Importance

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