laravel 在非对象上调用成员函数 delete()
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Call to a member function delete() on a non-object
提问by CIPSR
Im trying to delete value form web page but get an error
我试图删除值表单网页但收到错误
Symfony \ Component \ Debug \ Exception \ FatalErrorException (E_ERROR)
Call to a member function delete() on a non-object
Here's my controller code:
这是我的控制器代码：
public function delete(){
$id=Input::get('id');
$galleries=ForumGallery::find($id);
$galleries->delete();
return Redirect ::route('gallery',$id);
}
And the according route:
以及相应的路线：
Route::get('/Gallery/delete',array('uses'=>'GalleryController@destroy','as'=>'d??estroy'))
how to solve it?
如何解决？
回答by kapa89
You should check $galleries before delete it:
你应该在删除它之前检查 $galleries ：
$galleries=ForumGallery::find($id);
if (!is_null($galleries)) {
$galleries->delete();
}
回答by lukasgeiter
You need to check if a gallery has actually been found. Otherwise find()returns null:
您需要检查是否确实找到了画廊。否则find()返回null：
$galleries = ForumGallery::find($id);
if ($galleries) {
$galleries->delete();
}
Alternatively you can also use findOrFail()which will throw an Exception if no model is found and handle that exception globally (e.g. to display a 404 error)
或者，您也可以使用findOrFail()which 将在未找到模型时抛出异常并全局处理该异常（例如显示 404 错误）
$galleries = ForumGallery::findOrFail($id);
$galleries->delete();
Edit
编辑
Judging from the comment you left on the other answer, you call the route by /Gallery/delete/6. If you want to do that you need to change your route:
从您在另一个答案上留下的评论来看，您通过/Gallery/delete/6. 如果你想这样做，你需要改变你的路线：
Route::get('/Gallery/delete/{id}',array('uses'=>'GalleryController@destroy','as'=>'d??estroy'));
and controller method:
和控制器方法：
public function delete($id){
$galleries=ForumGallery::findOrFail($id);
$galleries->delete();
return Redirect ::route('gallery',$id);
}
