Yii2:如何在ActiveController中使用组件默认动作 [英] Yii2: how to use component in ActiveController default action
问题描述
如文档所示:
[[yii\rest\IndexAction | index]]:按页列出资源
响应具有视图:
curl -i -H "Accept:application/json" "http://192.168.100.5/index.php/tweets"
HTTP/1.1 200 OK
Date: Wed, 30 Mar 2016 12:10:07 GMT
Server: Apache/2.4.7 (Ubuntu)
X-Powered-By: PHP/5.5.9-1ubuntu4.14
X-Pagination-Total-Count: 450
X-Pagination-Page-Count: 23
X-Pagination-Current-Page: 1
X-Pagination-Per-Page: 20
Link: <http://192.168.100.5/tweets?page=1>; rel=self, <http://192.168.100.5/tweets?page=2>; rel=next, <http://192.168.100.5/tweets?page=23>; rel=last
Content-Length: 4305
Content-Type: application/json; charset=UTF-8
[{"id":71,"text":"Juíza do RS Graziela Bünd.......
我有一个组件,其中一个返回 - 一些数组(从两个表选择)如果我自定义indexAction。
I have component which one return - some array (selection from two tables). If i customize indexAction.
public function actions()
{
$actions = parent::actions();
unset($actions['update']);
unset($actions['delete']);
unset($actions['view']);
unset($actions['index']);
return $actions;
}
public function actionIndex($count = 10)
{
/** @var TweetLastfinder $tweetLastFinder */
$tweetLastFinder = Yii::$app->get('tweetlastfinder');
return $tweetLastFinder->findLastTweets($count);
}
回应内容正确,但有查看:
Response have correct content but has view:
curl -i -H "Accept:application/json" "http://192.168.100.5/index.php/tweets"
HTTP/1.1 200 OK
Date: Wed, 30 Mar 2016 12:15:36 GMT
Server: Apache/2.4.7 (Ubuntu)
X-Powered-By: PHP/5.5.9-1ubuntu4.14
Content-Length: 2282
Content-Type: application/json; charset=UTF-8
[{"id":605,"text":"Popular Mus......
在这种情况下,我不能使用 $ serializer
,显示 _meta
In this case i cant use $serializer
, show _meta
etc
我想要使用组件和列表资源的响应,因为它是默认动作,应该怎么做?
I want to use response from component and list resources page by page as it do default action. How it should be done properly?
推荐答案
要充分利用内置的 yii \rest\Serializer 并显示 _meta
或让您的网址看起来像:
To get full use of the built in yii\rest\Serializer and show _meta
or have your urls to look like:
/tweets?page=5&per-page=12&sort=name
您的操作应返回数据提供者对象,用于实现 DataProviderInterface ,可以是以下任何一种:
your action should return a data provider object that implements the DataProviderInterface which can be any of those:
所以这一切都取决于什么样的对象 $ tweetLastFinder-> findLastTweets()
正在返回。如果 findLastTweets
方法返回 ActiveQuery
对象,如:
So it all depends on what kind of object $tweetLastFinder->findLastTweets()
is returning. If the findLastTweets
method is returning an ActiveQuery
object like:
public function findLastTweets($count)
{
...
return $Tweets::find();
}
然后将它放入 ActiveDataProvider
instance:
Then just put it into an ActiveDataProvider
instance:
use yii\data\ActiveDataProvider;
public function actionIndex($count = 10)
{
/** @var TweetLastfinder $tweetLastFinder */
$tweetLastFinder = Yii::$app->get('tweetlastfinder');
$tweets = $tweetLastFinder->findLastTweets();
return new ActiveDataProvider([
'query' => $tweets,
]);
}
如果它返回一个数据数组或者你可以转换为数组只是把它放入一个 ArrayDataProvider
实例。如果它是一个更复杂的对象,那么您需要构建一个自定义数据提供程序,您可以在其中包装它。请参阅相关 docs 。
If it returns an array of data or something you can convert to an array then just put it into an ArrayDataProvider
instance. If it is a more complex object then you'll need to build a custom Data Provider inside which you can wrap it. See how to do that in related docs.
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