Question

我正在尝试将一组对象传递给视图，然后使用刀片模板引擎来遍历它们。

数据从Parse.com查询返回，结构如下：

[
    {
        "Params": [],
        "difficulty": "Medium",
        "exerciseDescription": "Sit on a gym ball with a dumbbell in each hand. Bend your elbows to lift the dumbbells to your shoulder.",
        "exerciseID": "1024",
        "exerciseName": "Bicep Curl Sitting on Gym Ball",
        "images": [
            2758,
            2759,
            2760
        ],
        "objectId": "9xjQ4WVo6e",
        "tags": [
            "Dumbbell",
            "Gym Ball",
            "Flexion"
        ],
        "words": [
            "seated",
            "dumbbell",
            "arm",
            "curl"
        ]
    }
]

我使用此查询获取此信息：

public function about()
    {

      $programmeId = 'T8iqZhtDqe';
      $query = new ParseQuery("PrescribedProgrammes");
            try {
              $programme = $query->get($programmeId);
              // The object was retrieved successfully.
            } catch (ParseException $ex) {
                echo $ex;
              // The object was not retrieved successfully.
              // error is a ParseException with an error code and message.
            }

        $exerciseData = $programme->get("exerciseData");
        $programmeTitle = $programme->get("prescribedProgrammeTitle");


        // return view('pages.about', compact('exerciseData','programmeTitle'));

        return view('pages.about')->with('exerciseData', $exerciseData);

    }

为了测试这一点，我一直在尝试：

@foreach($exerciseData as $exercise => $value)
    {{ $exercise->exerciseName }}
@endforeach

但是我收到Array to string conversion错误。来自angularJS背景我希望将我的对象数组传递给视图，然后在我认为合适时循环遍历它们。这会被认为是不好的形式吗？

修改

正在运行dd($exerciseData)

array:7 [▼
  0 => array:9 [▼
    "Params" => []
    "difficulty" => "Medium"
    "exerciseDescription" => "Sit on a gym ball with a dumbbell in each hand. Bend your elbows to lift the dumbbells to your shoulder."
    "exerciseID" => "1024"
    "exerciseName" => "Bicep Curl Sitting on Gym Ball"
    "images" => array:6 [▶]
    "objectId" => "9xjQ4WVo6e"
    "tags" => array:6 [▶]
    "words" => array:8 [▶]
  ]
  1 => array:9 [▶]
  2 => array:9 [▶]
  3 => array:9 [▶]
  4 => array:9 [▶]
  5 => array:9 [▶]
  6 => array:9 [▶]
]

Answer 1

我认为你正在使用数组的键而不是值。例如，默认的PHP foreach如下所示：

foreach($array as $key => $value) {
    // code
}

编辑：在查看$ exerciseData的转储后，看来PHP正在将JSON序列化为一个数组，因此这会改变答案。

如果将此内容返回到视图：

return view('quiz.create', compact('programmeTitle', 'exerciseData'));

然后在您的视图中有以下内容，它应该可以正常工作，因为我在本地进行了测试：

<h2>{{$programmeTitle}}</h2>
@foreach ($exerciseData as $key => $exercise)
    <p>{{$exercise['exerciseName']}}</p>
@endforeach

Laravel 5显示从Parse.com返回的对象数组

1 个答案: