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yii2-rss
=========
Yii2 Framework extension to provide functionality for consuming RSS and Atom feeds using zend-feed library.
Installation
------------
```code
{
"require":
{
"yurkinx/yii2-rss": "dev-master"
}
}
```
Configuration
-------------
In config file
```code
/config/web.php
```
Add feed component
```code
'components' => array(
...
'feed' => array(
'class' => 'yii\feed\FeedDriver',
),
)
```
Simple usage
-----
__Read Rss feed:__
```php
$feed=Yii::$app->feed->reader()->import('http://exapmple.com/feed.rss');
```
This will get RSS feed, parse it and return feed object.
For more details you can read the official Zend-feed extention documentaion:
http://framework.zend.com/manual/2.2/en/modules/zend.feed.reader.html
__Create Rss feed:__
Create action Rss in controller
```php
public function actionRss(){
$feed=Yii::$app->feed->writer();
$feed->setTitle(Yii::$app->params['title']);
$feed->setLink('http://example.com');
$feed->setFeedLink('http://example.com/rss', 'rss');
$feed->setDescription(Yii::t('app','Recent headlines'));
$feed->setGenerator('http://example.com/rss');
$feed->setDateModified(time());
/**
* Add one or more entries. Note that entries must
* be manually added once created.
*/
$posts=Post::find()->orderBy('id DESC')->limit(20)->all();
foreach($posts as $post){
$entry = $feed->createEntry();
$entry->setTitle($post->title);
$entry->setLink(Yii::$app->urlManager->createAbsoluteUrl('/post/view',['id'=>$post->id]));
$entry->setDateModified(intval($post->created));
$entry->setDateCreated(intval($post->created));
$entry->setContent(
$post->content
);
$entry->setEnclosure(
[
'uri'=>$post->image,
'type'=>'image/jpeg',
'length'=>filesize(Yii::getAlias('@webroot').$post->image)
]
);
$feed->addEntry($entry);
}
/**
* Render the resulting feed to Atom 1.0 and assign to $out.
* You can substitute "atom" with "rss" to generate an RSS 2.0 feed.
*/
$out = $feed->export('rss');
header('Content-type: text/xml');
echo $out;
die();
}
```
Then it's better to cache it with cache component:
```php
public function behaviors() {
return [
....
'cache'=> [
'only'=>['rss'],
'class'=>PageCache::className(),
'duration'=>0,
'dependency'=>[
'class' => 'yii\caching\DbDependency',
'sql' => 'SELECT max(time_updated) as max FROM tbl_post',
],
]
];
}
```
Take a look at Zend-feed writer official documentaion for more advanced usage of Zend-feed
http://framework.zend.com/manual/2.2/en/modules/zend.feed.writer.html