Question

我需要将管理员的总和添加到交易中。事务被分成多个表，现在我想分别从两个表中获取总数。结果我得到的结果是荒谬的高。我不确定是我的查询乘以某处的值。

User::select('user.name as name',
                DB::raw('sum(CASE WHEN current.amount > 0 THEN current.amount END) as current_positive'),
                DB::raw('sum(CASE WHEN current.amount < 0 THEN current.amount END) as current_negative'),
                DB::raw('sum(CASE WHEN cash.amount > 0 THEN cash.amount END) as cash_positive'),
                DB::raw('sum(CASE WHEN cash.amount < 0 THEN cash.amount END) as cash_negative')
                )->leftjoin('current_transaction as current', 'current.created_by', '=', 'user.id')
                ->leftjoin('cash_transaction as cash', 'cash.created_by', '=', 'user.id')
                ->whereBetween('current.created_at', [$start_date->format('Y-m-d'), $end_date->format('Y-m-d')])
                ->whereBetween('cash.created_at', [$start_date->format('Y-m-d'), $end_date->format('Y-m-d')])
                ->where('user.type', 3)
                ->groupBy('user.name')
                ->get();

更新

我正在尝试使用M Khalid的解决方案，以下是错误消息：

- ＆gt; mergeBindings（$ CUT）

Symfony \ Component \ Debug \ Exception \ FatalThrowableError：类型错误：传递给Illuminate \ Database \ Query \ Builder的参数1 :: mergeBindings（）必须是Illuminate \ Database \ Query \ Builder的实例

- ＆GT; mergeBindings（$ CUT-＆GT; getBindings（））

Symfony \ Component \ Debug \ Exception \ FatalThrowableError：类型错误：参数1传递给Illuminate \ Database \ Query \ Builder :: mergeBindings（）必须是Illuminate \ Database \ Query \ Builder的实例，给定数组

- ＆gt; addBinding（$ CUT）

ErrorException：类Illuminate \ Database \ Eloquent \ Builder的对象无法转换为字符串

Answer 1

由于左边连接，你得到的金额错误，每个连接表可能每个用户有多行，这使得金额远远高于原始金额，为了解决这个问题你需要计算这些金额在indvidual子句中，然后加入这些与主要有点像

// For current_transaction
$CUT = CurrentTransaction::query()
    ->select('created_by',
              DB::raw('sum(CASE WHEN amount > 0 THEN amount END) as current_positive'),
              DB::raw('sum(CASE WHEN amount < 0 THEN amount END) as current_negative')
            )
    ->from('current_transaction')
    ->whereBetween('created_at', [$start_date->format('Y-m-d'), $end_date->format('Y-m-d')])
    ->groupBy('created_by');
$CUTSql = $CUT->toSql();

// For cash_transaction
$CAT = CashTransaction::query()
    ->select('created_by',
              DB::raw('sum(CASE WHEN amount > 0 THEN amount END) as cash_positive'),
              DB::raw('sum(CASE WHEN amount < 0 THEN amount END) as cash_negative')
            )
    ->from('cash_transaction')
    ->whereBetween('created_at', [$start_date->format('Y-m-d'), $end_date->format('Y-m-d')])
    ->groupBy('created_by');
$CATSql = $CAT->toSql();

// Main query
User::select('user.name as name','cu.*','ca.*')
    ->leftjoin(DB::raw('(' . $CUTSql. ') AS cu'),function($join) use ($CUT) {
            $join->on('user.id', '=', 'cu.created_by');
            /* ->addBinding($CUT->getBindings());*/
    })
    ->leftjoin(DB::raw('(' . $CATSql. ') AS ca'),function($join) use ($CAT) {
            $join->on('user.id', '=', 'ca.created_by');
            /* ->addBinding($CAT->getBindings());  */
    })
    ->where('user.type', 3)
    ->mergeBindings($CUT) /* or try with ->mergeBindings($CUT->getBindings()) */
    ->mergeBindings($CAT) /* or try with ->mergeBindings($CAT->getBindings()) */
    ->get();

在laravel上面做的很复杂，就像每个子句获取sql和query构建器对象然后在主查询中使用它们有点像下面

{{1}}

连接表的总和不正确

更新

1 个答案: