Question

我在db中的表中有几行，每行与三个表相关，每个表都有很多行。当我循环主表行时，我现在也循环三个表行，如果其中一个表有行内容，那么我想阻止显示整个子循环只包含一个值。

在我的控制器中：

public function classWiseResult(Request $request){
         $students = Students::where('class',$request->class)
            ->with('firstTerm')
            ->with('secondTerm')
            ->with('finalTerm')
            ->get();

        return view('admin.showResult.show',compact('students'));
}

在我看来：

@foreach($students as $student)
                                      <tr>
                                        <td>{{$student->id}}</td>
                                          <td>{{$student->fname}}</td>
                                      <?php $Ftotal = 0; $Fcount = 0; ?>
                                     @foreach($student->firstTerm as $first)
                                          <?php $Fcount++;?>

                                      <?php  $Ftotal +=  gradePoint($first->number); ?>
                                     @endforeach

                                      <?php $fttp = gpa($Ftotal, $Fcount) ;?>
                                      <td>{{$fttp}}</td>
                                      <td>
@if($Ftotal){
{letterGrade(gpa($Ftotal, $Fcount))}
}
@endif
</td>

结果：

如果我的主题编号低于32

，我想跳过显示结果

Answer 1

此方法使用关系计数比较。

<强>控制器

@foreach($students as $student)
    @if($student->firstTermPromoted == $student->firstTermAllCount
        && $student->secondTermPromoted == $student->secondTermAllCount
        && $student->finalTermPromoted == $student->finalTermAllCount)

        {{ "Promoted" }}

    @else

        {{ "Not Promoted" }}

    @endif
@endforeach

在您的视图中，您可以比较所有关系的总数和通过该条件的关系数。

查看

public void createAppiumDriver() throws MalformedURLException, InterruptedException { DesiredCapabilities capabilities = new DesiredCapabilities(); capabilities.setCapability("deviceName", "iPhone 7 Plus"); capabilities.setCapability("platformName", "iOS"); capabilities.setCapability("platformVersion", "11.2"); capabilities.setCapability("autoWebView", true); capabilities.setCapability("app", getProperties().getProperty("appURL")); capabilities.setCapability("autoAcceptAlerts", true); capabilities.setCapability("useNewWDA", true); capabilities.setCapability("startIWDP",true); iosDriver = new IOSDriver(new URL("http://0.0.0.0:4723/wd/hub"), capabilities);}

从嵌套循环停止循环并删除特定循环集，如果该循环具有laravel中的内容

1 个答案: