Question

我在Laravel中很陌生，

实际上，我正在尝试使用Laravel 5.6创建一个crud操作，所以我已经成功创建了create，delete函数，但是在update函数上却出现了错误

Please find the attched image for detailed error

Use of undefined constant title - assumed 'title' (this will throw an Error in a future version of PHP)

控制器

public function edit($id){
    $blogCategories = BlogCategories::find($id);

    if (empty($blogCategories)) {
        Flash::error('Category not found');
        return redirect(route('categories.index'));
    }
    return view('cms/BlogCategories/editCategory')->with('blogCategories', $blogCategories);
}
public function update(Request $request, $id){
    $blogCategories = BlogCategories::find($id);
    $blogCategories->title = $request->get(title);
    $blogCategories->slug = $request->get(slug);
    $blogCategories->description = $request->get(description);
    $blogCategories->featured_image = $request->get(featured_image);
    $blogCategories->save();
    return redirect()->back();
}

模型

class BlogCategories extends Model{
protected $fillable = ['title', 'slug', 'description', 'featured_image'];
protected $guarded = [];
}

表格

<form action="{{route('categories.update', $blogCategories->id)}}" method="post" class="m-form m-form--fit m-form--label-align-right">
                                    @csrf
                                    @method('put')
                                    <div class="m-portlet__body">
                                        <div class="form-group m-form__group">
                                            <label>Title</label>
                                            <input type="text" class="form-control m-input" name="title" id="title" value="{{$blogCategories->title}}" aria-describedby="emailHelp" placeholder="Muhammad Owais">
                                        </div>

                                        <div class="form-group m-form__group">
                                            <label>slug</label>
                                            <input type="text" class="form-control m-input" name="slug" id="slug" value="{{$blogCategories->slug}}" aria-describedby="emailHelp" placeholder="mail@domain.com">
                                        </div>

                                        <div class="form-group m-form__group">
                                            <label>Description</label>
                                            <textarea class="form-control" name="description" id="description" value="{{$blogCategories->description}}" placeholder="Enter Description"></textarea>
                                        </div>
                                        <div class="form-group m-form__group">
                                            <label>Featured Image</label>
                                            <input type="text" class="form-control m-input" name="featured_image" id="featured_image" value="{{$blogCategories->featured_image}}" aria-describedby="emailHelp" placeholder="Enter Amazon S3 URL">
                                        </div>
                                    </div>
                                    <div class="m-portlet__foot m-portlet__foot--fit">
                                        <div class="m-form__actions">
                                            <button type="submit" class="btn btn-primary">
                                                Submit
                                            </button>
                                            <button type="reset" class="btn btn-secondary">
                                                Cancel
                                            </button>
                                        </div>
                                    </div>
                                </form>

Answer 1

对所有HTTP请求使用引号，例如：

$request->get('title');
$request->get('slug');

使用未定义的常量标题-假定为“标题”

1 个答案: