在 Laravel 的控制器/视图中使用模型中的函数
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Using a function from a model in a controller/view in Laravel
提问by user1072337
I am trying to access data from a query that I have placed within a function in a model. I am trying to call the function within a controller, and then send along that data to a view. So far, I have been unsuccessful. Here is the code:
我正在尝试从放置在模型函数中的查询访问数据。我试图在控制器中调用该函数，然后将该数据发送到视图。到目前为止，我一直没有成功。这是代码：
Model: Fanartist.php
模型：Fanartist.php
public function fan_likes() {
$fan_likes = DB::table('fanartists')
->join('artists', 'fanartists.fan_id', '=', 'artists.id')
->where('fanartists.fan_id', '=', Auth::user()->id)
->select('artists.id', 'artists.stage_name', 'artists.city', 'artists.state', 'artists.image_path', 'artists.description');
}
Controller: FansController.php
控制器：FansController.php
public function getHome() {
return View::make('fans.home')
->with('fans', Fan::all())
->with('fanartists', Fanartist::fan_likes());
}
View:
看法：
@foreach($fanartists as $fanartist)
{{$fanartist}}
@endforeach
When I run this, I get the error:
当我运行这个时，我收到错误：
Non-static method Fanartist::fan_likes() should not be called statically, assuming $this from incompatible context
Thank you for your help and suggestions.
感谢您的帮助和建议。
UPDATE:
更新：
New error. I am returning the view, but now, trying to run this:
新错误。我正在返回视图，但是现在，尝试运行它：
@foreach($fanartists as $fanartist)
{{$fanartist->artists.id}}
@endforeach
I get the error:
我收到错误：
log.ERROR: exception 'ErrorException' with message 'Trying to get property of non-object' in /Applications/MAMP/htdocs/crowdsets/laravel-master/app/storage/views/2ed7fc8952dab08cf4cb4f4e3d40d1ab:100
log.ERROR：异常“ErrorException”，消息“试图获取非对象的属性”在 /Applications/MAMP/htdocs/crowdsets/laravel-master/app/storage/views/2ed7fc8952dab08cf4cb4f4e3d40d1ab:100
UPDATE 2:
更新 2：
running:
跑步：
@foreach($fanartists as $fanartist)
<?php var_dump($fanartist); ?>
@endforeach
I get the following output:
我得到以下输出：
NULL array(6) { [0]=> string(10) "artists.id" [1]=> string(18) "artists.stage_name" [2]=> string(12) "artists.city" [3]=> string(13) "artists.state" [4]=> string(18) "artists.image_path" [5]=> string(19) "artists.description" } bool(false) string(10) "fanartists" array(1) { [0]=> object(Illuminate\Database\Query\JoinClause)#201 (3) { ["type"]=> string(5) "inner" ["table"]=> string(7) "artists" ["clauses"]=> array(1) { [0]=> array(4) { ["first"]=> string(17) "fanartists.fan_id" ["operator"]=> string(1) "=" ["second"]=> string(10) "artists.id" ["boolean"]=> string(3) "and" } } } } array(1) { [0]=> array(5) { ["type"]=> string(5) "Basic" ["column"]=> string(17) "fanartists.fan_id" ["operator"]=> string(1) "=" ["value"]=> string(1) "1" ["boolean"]=> string(3) "and" } } NULL NULL NULL NULL NULL NULL
采纳答案by Trying Tobemyself
Fanartist::fan_likes()is not supposed to be called statically, but if you want to call it statically then change your fan_likes function to static.
for your example
Fanartist::fan_likes()不应静态调用，但如果您想静态调用它，请将 fan_likes 函数更改为静态。对于你的例子
public static function fan_likes() {
$fan_likes = DB::table('fanartists')
->join('artists', 'fanartists.fan_id', '=', 'artists.id')
->where('fanartists.fan_id', '=', Auth::user()->id)
->select('artists.id', 'artists.stage_name', 'artists.city', 'artists.state', 'artists.image_path', 'artists.description');
return $fan_likes;
}
回答by jacanterbury
if you have a non-static function like this in your MyClass controller:
如果您的 MyClass 控制器中有这样的非静态函数：
public function my_func( ) {
// do stuff
return ( $stuff ) ;
}
then in your controller, you can call it with code like this:
然后在您的控制器中，您可以使用如下代码调用它：
$local_obj = MyClass::findOrFail( $myobj_id );
$rval = $local_obj->my_func();
if you want to call it from your view, I think you need to pass the object to the view similar to this:
如果你想从你的视图中调用它，我认为你需要将对象传递给类似于这样的视图：
$data['my_obj'] = $local_obj;
return View::make('view_name.show')->with('data',$data);
and then to use in the view use something like this:
然后在视图中使用这样的东西：
{{{$data['my_obj']->my_func() }}}
(above is copied and edited from working code - apols if i've made a typo )
（以上是从工作代码中复制和编辑的 - 如果我打错了 apols ）
