php Laravel 5.1 从数据库中删除一行
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Laravel 5.1 Delete a row from database
提问by vignesh pbs
I am trying to delete a category by clicking on a button
我正在尝试通过单击按钮来删除类别
Blade:
刀刃：
<td class="center"><a href="{{URL::to('/deletecat/'.$category->name) }}"><span class="glyphicon glyphicon-trash"></span></a></td>
Route:
路线：
Route::get('/deletecat/{name}','CategoryController@delete');
Controller:
控制器：
public function delete($name)
{
category::find($name)->delete();
return Redirect::route('managecategory');
}
but I am getting an error while clicking on a button that
但是我在点击一个按钮时出现错误
Call to a member function delete() on a non-object
Any help appreciated.
任何帮助表示赞赏。
回答by Jerodev
The ::find($id)method expects $idto be a number, the primary key of the row you want to find.
该::find($id)方法需要$id一个数字，即您要查找的行的主键。
If you want to delete a row by name, you should use the following code:
如果要按名称删除一行，则应使用以下代码：
category::where('name', $name)->delete();
