如何顯示數據庫中的所有行-Laravel 5.2？

Question

我的Laravel應用程序有一個簡單的問題，但找不到任何解決方案，請在此處查看我的代碼：

控制器：

public function index(){
    $members = Member::paginate(15);

    $meal_entry = Member::all();
    $breakfast = DB::SELECT("SELECT self_meal_breakfast + guest_meal_breakfast AS breakfast FROM meal_entry");
    $lunch = DB::SELECT("SELECT self_meal_lunch + guest_meal_lunch AS lunch FROM meal_entry");        
    $dinner = DB::SELECT("SELECT self_meal_dinner + guest_meal_dinner AS dinner FROM meal_entry");
    $total_meal = DB::SELECT("SELECT self_meal_breakfast + self_meal_lunch + self_meal_dinner + guest_meal_breakfast + guest_meal_lunch + guest_meal_dinner AS total FROM meal_entry");

    return view('member.mealView', compact('members','data','breakfast','lunch','dinner','meal_entry','total_meal'));
}

刀片視圖：

<tbody>
    <tr>
        @foreach($meal_entry as $value)
        <td>{{ $value->created_at }}</td>
        @endforeach                                        
        @foreach($breakfast as $value)
        <td>{{ $value->breakfast }}</td>
        @endforeach                                        
        @foreach($lunch as $value)
        <td>{{ $value->lunch }}</td>
        @endforeach                                        
        @foreach($dinner as $value)
        <td>{{ $value->dinner }}</td>
        @endforeach                                        
        @foreach($total_meal as $value)
        <td>{{ $value->total }}</td>
        @endforeach                                        
        @foreach($meal_entry as $value)
        <td>{{ $value->created_at }}</td>
        @endforeach
    </tr>
</tbody>

並在表中： meal_entry 。

如果數據庫中有row ，則可以查看 （ 請參閱 ）。但是如果row多於一行，則其所有數據都顯示在row （ 請參閱 ）。我該如何處理呢？ 我認為應該運行另一個循環，但是我該怎么做呢？ 提前致謝。

Answer 1

因此，如果您使用的是Laravel，則具有的最佳功能之一就是訪問器：

https://laravel.com/docs/5.2/eloquent-mutators#accessors-and-mutators

您可以創建新屬性並將其用作模型屬性。

對於某些東西非常有用。

class Meal extends Model
{
    public function getTotalBreakfastAttribute()
    {
        return $this->self_meal_breakfast + $this->guest_meal_breakfast;
    }
}

然后，將此訪問器用作屬性：

<tbody>
   @foreach($foods as $value)
    <tr>
       <td> {{$value->total_breakfast}} </td> 
       <td> {{$value->created_at}} </td>
    </tr>
  @endforeach
</tbody>

或者，如果您不想這樣做，則可以使用一個示例，因為所有字段都在同一個表中，而不是使用多個查詢來獲取數據，然后可以使用上面的示例。

請享用！ :)

Answer 2

一個快速的修補程序是只執行一個查詢，然后在視圖上進行計算（我知道這不是在視圖中進行計算的好習慣，但這是我能看到的最簡單的方法）。

就像這樣：

控制器：

public function index(){
    $members = Member::paginate(15);

    return view('member.mealView', compact('members'));
}

刀片視圖

<tbody>
    @foreach($members as $meal_entry)
    <tr>
        <td>{{ $meal_entry->created_at }}</td>

        <td>{{ $breakfast = $meal_entry->self_meal_breakfast + $meal_entry->guest_meal_breakfast }}</td>

        <td>{{ $lunch = $meal_entry->self_meal_lunch+ $meal_entry->guest_meal_lunch}}</td>

        <td>{{ $dinner = $meal_entry->self_meal_dinner + $meal_entry->guest_meal_dinner }}</td>

        <td>{{ $breakfast + $lunch + $dinner }}</td>

        <td>{{ $meal_entry->created_at }}</td>
    </tr>
    @endforeach 
</tbody>

並記得添加

{{ $members->links() }}

您想要分頁鏈接的位置。