Laravel 7-尝试获取非对象的属性“ task_name”-具有各种输入和多图像上传的表单 我可以看到的另一个问题

如何解决Laravel 7-尝试获取非对象的属性“ task_name”-具有各种输入和多图像上传的表单 我可以看到的另一个问题

我正在尝试测试应用程序的多重上传功能，但由于停留在Trying to get property 'task_name' of non-object上而无法进入该阶段 我是Laravel的新手，并且有将表单数据上传到数据库的经验。但是，这种形式与我尝试上传图像数组时有些不同。我什至不确定我是否做对了。阻止我的是表单操作。除了Laravel错误之外，我还在控制台中得到了一些我也不了解的东西。我将Route::resource用于存储方法，我将在下面更详细地发布。在控制台中，我注意到它正在重复执行任务路由，并且我不知道这是否正常。这是控制台错误：

/tasks/tasks?_token=***Token Info Here***_method=POST&task_name=Toilet+repair+&task_priority=3&task_description=dsfsdf&task_assigned_by=Ren%C3%A9+Gomez&task_assigned_to=John+Whitmore&task_to_be_completed_date=2020-09-13&task_status=Pending&task_notes=sdfsdf&imageName%5B%5D=broken-toilet.jpg&imageName%5B%5D=carpet.jpg&imageName%5B%5D=molding.jpg:1 GET http://taskapp.test/tasks/tasks?_token=***Token Info Here***_method=POST&task_name=Toilet+repair+&task_priority=3&task_description=dsfsdf&task_assigned_by=Ren%C3%A9+Gomez&task_assigned_to=John+Whitmore&task_to_be_completed_date=2020-09-13&task_status=Pending&task_notes=sdfsdf&imageName%5B%5D=broken-toilet.jpg&imageName%5B%5D=carpet.jpg&imageName%5B%5D=molding.jpg 500 (Internal Server Error)

这是我的create.blade.PHP中的表格

<form action="tasks" method="GET" enctype="multipart/form-data" class="mb-5">
        {{ csrf_field() }}
        @method('POST')
            <div class="form-group">
              <input
                id="task_name"
                type="text"
                name="task_name"
                class="form-control"
                placeholder="Task Name" />
            </div>
            <div class="form-group">
              <select
                id="task_priority"
                type="text"
                name="task_priority"
                class="form-control"
              >
                <option value>Select a Priority Level</option>
                <option value="1">1</option>
                <option value="2">2</option>
                <option value="3">3</option>
                <option value="4">4</option>
                <option value="5">5</option>
              </select>
            </div>
            <div class="form-group">
              <textarea
                id="task_description"
                type="text"
                name="task_description"
                class="form-control"
                placeholder="Task Description"
              ></textarea>
            </div>

            <div class="form-group">
              <input
                id="task_assigned_by"
                type="text"
                name="task_assigned_by"
                class="form-control"
                placeholder="Assigned By"
              />
            </div>
            <div class="form-group">
              <input
                id="task_assigned_to"
                type="text"
                name="task_assigned_to"
                class="form-control"
                placeholder="Assigned To"
              />
            </div>
            <div class="form-group">
              <label for="task_to_be_completed_date">Due:</label>
              <input
                id="task_to_be_completed_date"
                type="date"
                name="task_to_be_completed_date"
                class="form-control"
                placeholder="Due: "
              />
            </div>
            <div class="form-group">
              <select
                id="task_status"
                type="text"
                name="task_status"
                class="form-control"
              >
                <option value>Select Task Status</option>
                <option value="Pending">Pending</option>
                <option value="Finished">Finished</option>
                <option value="Incomplete">Incomplete</option>
              </select>
            </div>


            <div class="form-group">
              <label for="task_notes">Notes:</label>
              <textarea
                id="task_notes"
                type="text"
                name="task_notes"
                class="form-control"
                placeholder="Notes: "
              ></textarea>
            </div>
            <label for="imageName">Image(s)</label>
            <input type="file" name="imageName[]" multiple />
            <button type="submit" class="btn btn-success float-right">Create Task</button>
    </form>

web.PHP

Route::resource('tasks','TasksController');

TaskController.PHP（仅相关功能）

 public function create()
    {
        return view('tasks.create');

}
 public function store(Request $request)
    {
        $this->validate($request,[
            'task_name' => 'required','task_description' => 'required'
        ]);

        // Create Task
        $task = new Task;

        $task->task_name = $request->input('task_name');
        $task->task_description = $request->input('task_description');
        $task->task_priority = $request->input('task_priority');
        $task->task_assigned_by = $request->input('task_assigned_by');
        $task->task_assigned_to = $request->input('task_assigned_to');
        $task->task_to_be_completed_date = $request->input('task_to_be_completed_date');
        $task->task_notes = $request->input('task_notes');
        $task->task_status = $request->input('task_status');
        $imageName = array();
        if ($files = $request->file('imageName')) {
            foreach ($files as $file) {
                $name = $file->getClientOriginalName();
                $file->move('imageName',$imageName);
                $imageName[] = $name;
            }
        }
        Task::insert([
            'imageName' => implode("|",$imageName)
        ]);
        // $task->imageName = $request->input('imageName');
        $task->save();
        return redirect('/tasks')->with('success','Task Created');
    }
    
    public function show($id)
    {
        $task =  Task::find($id);
        return view('tasks.show')->with('task',$task);
    }

最后是我的show.blade.PHP

<div class="container">
    <a href="/tasks" class="btn bg-purple mb-4">Go Back</a>
    <div class="card p-3">
        <div class="row">
            <div class="col-md-4 col-sm-12">
                <h3>Task</h3>
                <p>{{ $task->task_name }}</p>
                <h3>Assigned On:</h3>
                <p>{{ $task->created_at->format('m/d/Y') }}</p>
                <h3>Assigned To:</h3>
                <p>{{ $task->task_assigned_to }}</p>
            </div>
            <div class="col-md-4 col-sm-12">
                <h3>Task Description</h3>
                <p>{{ $task->task_description }}</p>
                <h3>Priority</h3>
            <p>{{ $task->task_priority }}</p>
                <h3>Status</h3>
                <p>{{ $task->task_status }}</p>
            </div>
            <div class="col-md-4 col-sm-12">
                <h3>Due:</h3>
                <p>{{ $task->task_to_be_completed_date }}</p>
                <h3>Notes</h3>
                <p>{{ $task->task_notes }}</p>
                <h3>Images</h3>
                    {{-- @if(count($tasks) > 0)
                        @foreach($tasks as $task)
                            <img src="{{ $task->imageName }}" alt="">
                        @endforeach
                    @else
                        <p>No Images to show</p>
                    @endif --}}
            </div>
        </div>
    </div>
</div>

如果有人可以看看并让我知道我可能做错了什么，我将非常感激。如果我缺少任何文件或代码，请告诉我，以便我可以编辑查询。再次感谢您。

解决方法

upload an array of images和multipart/form-data

要求POST表单

如果您使用的是Route::resource('tasks','TasksController');，请添加@method('put') 因此，使method="POST"

<form action="tasks" method="POST" enctype="multipart/form-data" class="mb-5">
@method('put')

并使用它，这样您就不会收到像Trying to get property 'task_name' of non-object

这样的错误

$task =  Task::find($id);

到

$task =  Task::findOrFail($id);// if task is not present will throw 404 error

---

我可以看到的另一个问题

  Task::insert([
            'imageName' => implode("|",$imageName)
        ]);

应该是

 $task->imageName =  implode("|",$imageName);