shuguang/yii2-rss

Yii2 Framework extension to provide functionality for consuming RSS and Atom feeds using zend-feed library.

yii2-rss

Yii2 Framework extension to provide functionality for consuming RSS and Atom feeds using zend-feed library., _(*1)

Installation

php composer.phar require "shuguang/yii2-rss:dev-master"

or, _(*2)

{
    "require": 
    {
        "shuguang/yii2-rss": "dev-master"
    }
}

Configuration

In config file, _(*3)

/config/web.php

Add feed component, _(*4)

'components' => array(
    ...
    'feed' => array(
        'class' => 'yii\feed\FeedDriver',
    ),
)

Simple usage

Read Rss feed:, _(*5)

$feed=Yii::$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, _(*6)

Create Rss feed:, _(*7)

Create action Rss in controller, _(*8)

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:, _(*9)

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, _(*10)