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【Laravel】複数のクエリのwhere句を結合する

Last updated at Posted at 2020-06-12

where句をマージする関数は、クエリビルダに存在する

自作しようかと思ったがあった。

/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php
    /**
     * Merge an array of where clauses and bindings.
     *
     * @param  array  $wheres
     * @param  array  $bindings
     * @return void
     */
    public function mergeWheres($wheres, $bindings)
    {
        $this->wheres = array_merge($this->wheres, (array) $wheres);

        $this->bindings['where'] = array_values(
            array_merge($this->bindings['where'], (array) $bindings)
        );
    }

追加したいwhere句のwheresとbindingsを渡せば、マージしてくれるらしい

wheresを取得する方法

$query = app('App\Hogehoge');
$wheres = $query->getQuery()->wheres;

bindingsを取得する方法

$query = app('App\Hogehoge');
$bindings = $query->getBindings();

複数のクエリのwhere句を結合する

// もとになるクエリ
$query = app('App\Hogehoge')::join('piyopiyo', 'piyopiyo.id', '=', 'hogehoge.piyopiyo_id')
    ->where('hogehoge.class', 'A');

// 結合したいクエリ
$add_query = app('App\Piyopiyo')
    ->where('piyopiyo.class', 'B');

// queryにadd_queryのwhere句を結合する
$query->getQuery()->mergeWheres(
    $add_query->getQuery()->wheres,
    $add_query->getBindings()
);
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