如何计算刀片模板的平均值? [英] how to calculate average in blade template?
问题描述
带有此图片
是否可以计算内部刀片模板的平均值?我正在使用foreach循环显示学生的学科和成绩，并且在平均部分上如何求平均，在此问题上通过刀片或控制器计算的最佳方法是什么?目的是产生总平均数.
Is it possible to calculate the average inside blade template? I'm using foreach loop to show the subject and grade of the student and on the average section how can I total average, what is the best approach on this matter calculate through blade or controller? aim is to generate total avarage.
这是查看代码:
@foreach($scores as $score)
<td> {{$score->subject->subject_name}}</td>
<td> {{$score->result}}</td>
<td> {{$score->getGrade()}}</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> {{$score->final}}</td>
<td> {{$score->average()}}</td>
@endforeach
推荐答案
避免混淆的最好方法是在控制器中计算平均值并将其作为变量发送，因此您不必在视图中操作数据.您可以通过两种方式做到这一点，在视图中手动进行或在控制器中使用模型.
The best way to avoid confusion is to calculate the average in the controller and send it as a variable, so you don't have to manipulate data in the view. You can do it both ways, manually in the view or using the model in the controller.
以下是使用模型的示例:如何获取laravel中列值的平均值
Here is an example of using the model: How to get average of column values in laravel
$average = Scores::avg('average')
或者在视图中手动执行此操作，方法是将以前的值添加到变量中并用count($scores)除.
Or do it in the view manually by adding previous values to a variable and dividing with count($scores).
希望有帮助.
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