如何更新已经存在的文件

Question

在我的项目中，我有 2 个需要图像的元素（俱乐部有自己的图像和事件）

在这个问题中，我只关注俱乐部，因为事件解决方案可能是相同的。

我找到了一种方法来保存数据库中的文件路径，同时将文件保存在我的项目文件夹中。每当我在视图中调用图像时，我都会执行以下操作：

<img src="{{ asset('storage/' . $clubView->photo_patch) }}">

一切正常，但是当我尝试更新它们时（将数据库中的文件路径更改为新路径并将新图像添加到我的公共/存储/图像）

一切都出错了：

Call to a member function store() on string 

我的问题是，那我该怎么做呢？

这是我为完成这项工作而编写的代码：

控制器类及其下方的路由

--------Create new object/club-------------------

public function create(Request $request)
    {
        $id = Auth::id();
        $club = new Club;
        $club->name = $request->name;
        $club->description = $request->description;
        $club->address = $request->address;
        $club->city_id = $request->city_id;
        $club->user_id = $id;
        $club->photo_patch = $request->photo_patch->store('images','public');
        // $path = $request->photo_patch->store('images','public');

        // dd($club->photo_patch);
        $club->save();
        return redirect('clubs');
    }

Route::get('clubs/create', [App\Http\Controllers\ClubController::class, 'createView'])->name('clubs.createView');

--------Go to edit form-----------------------
public function edit($id)
    {
        $data = Club::find($id);
        $city = City::get();
        // $city_id = City::find;
        return view('backend/club/edit', ['data' => $data],['city' =>$city]);
    }

Route::get('clubs/edit/'.'{id}', [App\Http\Controllers\ClubController::class, 'edit'])->name('clubs.edit');

-----And then from edit, by pressing form button i do update function--------

    public function update(Request $request)
    {
        $data = Club::find($request->id);
        $data->name = $request->name;
        $data->description = $request->description;
        $data->address = $request->address;
        $data->photo_patch = $request->photo_patch->store('images','public');
        $data->city_id = $request->city_id;
        $data->save();

        return redirect('clubs');
    }

Route::post('club/update', [App\Http\Controllers\ClubController::class, 'update'])->name('club.update');

为了清楚起见，在 db 中，我存储了我的实际图像的路径，该图像位于我的 app/public/storage/images 中。

编辑：

创建表单

<form action="{{ route('club.create') }}" method="POST" enctype="multipart/form-data">
    @csrf
    <div class="container-sm">
        <div class="form-group">

            <label for="Club name">Club name</label>
            <input type="text" name="name" class="form-control" placeholder="enter name">

            <label for="Description">Description</label>
            <input type="textarea" rows="2" style="width:100%;height:60px;" name="description" class="form-control" placeholder="enter description">

            <label for="Address">Address</label>
            <input type="text" name="address" class="form-control" placeholder="enter address">

            <label for="inputState">City</label>
            <select id="inputState" name="city_id" class="form-control">
                @foreach($cities as $city)
                <option value="{{$city->id}}">{{ $city->name }}</option>
                @endforeach
            </select>

            <label for="Photo">Photo</label>
            <input type="file" class="form-control-file" name="photo_patch" accept="image/png, image/jpg">
            @error('photo_parch')
            <div class="invalid-feedback d-block">{{$message}}</div>
            @enderror

        </div>
        <button class="btn btn-primary" type="submit"> Create</button>
    </div>
</form>

编辑表单

<form action="{{ route('club.update') }}" method="POST" enctype="multipart/form-data">
    @csrf
    <div class="container-sm">
        <div class="form-group">

            <input type="hidden" name="id" value="{{$data->id}}">
            <input type="hidden" name="city_id" value="{{$data->city_id}}">

            <label for="City exit form input form">City name</label>
            <input type="text" name="name" class="form-control" value="{{$data->name}}">

            <label for="Description">Description</label>
            <input type="textarea" rows="2" style="width:100%;height:60px;" name="description" class="form-control" value="{{$data->description}}">

            <label for="Address exit form input form">Address</label>
            <input type="text" name="address" class="form-control" value="{{$data->address}}">

            <label for="inputState">City</label>
            <select id="inputState" name="city_id" class="form-control">
                @foreach($city as $city)
                <option value="{{$city->id}}">{{ $city->name }}</option>
                @endforeach
            </select>

            <label for="Photo">Photo</label>
            <input type="file" class="form-control-file" name="photo_patch" accept="image/png, image/jpg">
            @error('photo_parch')
            <div class="invalid-feedback d-block">{{$message}}</div>
            @enderror

        </div>
        <button class="btn btn-primary" type="submit"> Update</button>
        <div class="row">
        <img src="{{ asset('storage/' . $data->photo_patch) }}" options="transform: 0.5">
        </div>
    </div>
</form>

Answer 1

您似乎正在尝试访问像文件一样的表单字段。尝试改用$club->photo_patch = $request->file('photo_patch')->store('images','public');。

为此，您的编辑表单中应该有一个文件输入（我怀疑您的创建表单有）。为了更好地帮助您，查看您的表单 html 也会很有用（对于两种表单）。

Answer 2

您可以通过这种方式上传图片

public function create(Request $request)
{
    $imageName=date('d').time().date('m').'.'.$request->image->extension();
    $request->image->move(public_path('image'),$imageName);

    $id = Auth::id();
    $club = new Club;
    $club->name = $request->name;
    $club->description = $request->description;
    $club->address = $request->address;
    $club->city_id = $request->city_id;
    $club->user_id = $id;
    $club->photo_patch = $imageName;
    // $path = $request->photo_patch->store('images','public');

    // dd($club->photo_patch);
    $club->save();
    return redirect('clubs');
}
public function update(Request $request)
{
    $imageName=date('d').time().date('m').'.'.$request->image->extension();
    $request->image->move(public_path('image'),$imageName);

    $data = Club::find($request->id);
    $data->name = $request->name;
    $data->description = $request->description;
    $data->address = $request->address;
    $data->photo_patch = $imageName;
    $data->city_id = $request->city_id;
    $data->save();

    return redirect('clubs');
}

Answer 3

  public function update(Club $club, Request $request) {

$club->update([
"name" => request->name,
...
]);
        return redirect('clubs');
    }


Route:
Route::get('update-club/{$club}' [AppControlller::class, 'update']);