僅從Laravel的Datetime中選擇月份

Question

我僅在datetime中選擇月份部分時遇到問題。我在表格事務中有一個名爲payment_date的列。我想select * from transaction和group by月的payment_date。我曾嘗試使用此代碼：

$selectedYearTrx = $connectDB->table('transaction')         
    ->join('payment_channel','transaction.payment_channel_id','=','payment_channel.id') 
    ->select('id','payment_date', 'payment_channel_id','amount',DB::raw('MONTH(payment_date) as monthPayment')) 
    ->whereYear('payment_date', '=', $year) 
    ->where('status','=','S') 
    ->wherein('payment_channel_id', [1,2,3]) 
    ->where('currency','=','IDR') 
    ->orderBy('id', 'desc') 
    ->get() 
    ->groupBy('payment_channel_id','id','monthPayment'); 

但是，我通過獲取錯誤monthPayment組。該錯誤稱爲成員函數groupby（）。

任何人都可以幫助我解決這個問題嗎？

謝謝。

Answer 1

你應該把 - > get（）方法的代碼的末尾）

$selectedYearTrx = $connectDB->table('transaction')         ->join('payment_channel','transaction.payment_channel_id','=','payment_channel.id') 
           ->select('id','payment_date', 'payment_channel_id','amount',DB::raw('MONTH(payment_date) as monthPayment')) 
           ->whereYear('payment_date', '=', $year) 
           ->where('status','=','S') 
           ->wherein('payment_channel_id', [1,2,3]) 
           ->where('currency','=','IDR') 
           ->orderBy('id', 'desc') 
           ->get() 
           ->groupBy('payment_channel_id','id','monthPayment'); 

應該

$selectedYearTrx = $connectDB->table('transaction')         ->join('payment_channel','transaction.payment_channel_id','=','payment_channel.id') 
           ->select('id','payment_date', 'payment_channel_id','amount',DB::raw('MONTH(payment_date) as monthPayment')) 
           ->whereYear('payment_date', '=', $year) 
           ->where('status','=','S') 
           ->wherein('payment_channel_id', [1,2,3]) 
           ->where('currency','=','IDR') 
           ->orderBy('id', 'desc') 

           ->groupBy('payment_channel_id','id','monthPayment')->get();