Question

我正在使用Laravel控制器将数据发送到chartist.js。当我尝试将三个表连接在一起以求值总和时，当我连接第三个表时，输出实际上将增加一倍。

以下查询获取了我需要的数据，但是并不能准确地求和

$chart_stats = Transactions::join('customers', 'customers.id', '=', 'transactions.customer_id')
                        ->join('orders', 'orders.customer_id', '=', 'transactions.customer_id')
                        ->distinct()
                        ->select('customers.region', 'transactions.deposit', 'transactions.purchase_total', 'transactions.finance_amount_paid', 'orders.gov_funding_amount')
                        ->whereIn('customers.region', $selected_regions)
                        ->where('transactions.created_at', '>', $from)
                        ->where('transactions.created_at', '<', $to)
                        ->select(
                            DB::raw('customers.region as region' ),            
                            DB::raw('sum(transactions.deposit) as deposits'),
                            DB::raw('sum(transactions.purchase_total) as sums'),
                            DB::raw('sum(transactions.finance_amount_paid) as finance_paid'),
                            DB::raw('sum(transactions.deposit+transactions.finance_amount_paid) as total_paid'),
                            DB::raw('sum(orders.gov_funding_amount) as funding')
                        )
                        ->groupBy('customers.region')
                        ->orderBy('sums', 'asc')
                        ->get();

这将在数组中输出以下内容：

#original: array:6 [▼
    "region" => "Region 1"
    "deposits" => "5025.40"
    "sums" => "52875.00"
    "finance_amount_paid" => "0.00"
    "total_paid" => "5025.40"
    "funding" => "9228.00"

应该是：

    #original: array:6 [▼
    "region" => "Region 1"
    "deposits" => "1706.00"
    "sums" => "21271.00"
    "finance_amount_paid" => "0.00"
    "total_paid" => "1706.40"
    "funding" => "3396.00"

Answer 1

我本来打算对此发表评论，但最好是作为答复。这是一个命题，我可能是错的。有2个可能的答案。

更改这些行：

->where('transactions.created_at', '>', $from)
->where('transactions.created_at', '<', $to)

要：

->whereBetween('transaction.created_at, $from, $to)

或 edit：类型，将数组纠正为数组：

->where([['transactions.created_at', '>', $from], ['transactions.created_at', '<', $to]])

如果这两个条件均成立，则有可能将行选择两次。 distinct（）可能不执行预期的操作。您也可以尝试关闭：

->where(function ($query) {
      $query->where('transactions.created_at', '>', $from)
            ->where('transactions.created_at', '<', $to)
            ->distinct();
       })

在Laravel中连接三个表时，总和查询加倍

1 个答案: