php 此集合实例上不存在属性 [id]
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Property [id] does not exist on this collection instance
提问by Regolith
I am trying to create edit page and this error keeps popping up
Whoops, looks like something went wrong. Property [id] does not exist on this collection instance.What I've done so far
This is my Route
我正在尝试创建编辑页面，但此错误不断弹出
Whoops, looks like something went wrong. Property [id] does not exist on this collection instance.到目前为止我所做的事情
这是我的Route
Route::get('book/edit/{id}', 'BookController@edit')->name('admin.book.edit');
Route::PATCH('book/edit/{id}', 'BookController@update')->name('admin.book.edit');
This is my controller
这是我的控制器
$books = $this->bookModel
->join('author', 'author.id', '=', 'book.author_id')
->where('book.id', '=', $id)
->select('book.*', 'author.name_1 as authorname1')
->get();
return view('backend.book.edit', compact('books', $books));
Finally view file have the following in form part
最后查看文件在表单部分有以下内容
{{ Form::model($books, ['route' => ['admin.book.edit', $books->id], 'class' => 'form-horizontal', 'role' => 'form', 'method' => 'PATCH']) }}
<!--form content-->
{{ Form::close() }}
Any help will be appreciated. Thanks
任何帮助将不胜感激。谢谢
回答by dparoli
You have to retrieve one record with first()not a collection with get(), i.e:
您必须检索一个first()没有集合的记录get()，即：
$book = $this->bookModel
->join('author', 'author.id', '=', 'book.author_id')
->where('book.id', '=', $id)
->select('book.*', 'author.name_1 as authorname1')
->first();
Please sobstitute $bookswith $bookin the rest of the code also.
请sobstitute$books与$book代码也休息。
回答by Mayank Pandeyz
The error is here:
错误在这里：
$books->id
When you're using get()you get a collection and $booksis a collection. In this case you need to iterate over it to get its properties:
当您使用时，您将get()获得一个集合并且$books是一个集合。在这种情况下，您需要迭代它以获取其属性：
@foreach ($books as $book)
{{ $book->id }}
@endforeach
回答by AddWeb Solution Pvt Ltd
I think your code need to update like:
我认为您的代码需要更新如下：
$books = $this->bookModel
->join('author', 'author.id', '=', 'book.author_id')
->where('book.id', '=', $id)
->select('book.*', 'author.name_1 as authorname1')
->first();
return view('backend.book.edit', compact('books'));
Hope this work for you!
希望这对你有用！
回答by DragonFire
As Mayank mentioned above you get a collection, you neeed to itreate over the FIELDS to get the right field you want. I am giving the same answer in the sytax which is working for me
正如 Mayank 上面提到的，你得到一个集合，你需要遍历 FIELDS 以获得你想要的正确字段。我在对我有用的语法中给出了相同的答案
foreach ($books as $book) {
$book_id = $book->id
}
