silverstripe-blog/code/RSSWidget.php

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<?php
class RSSWidget extends Widget {
static $db = array(
"RSSTitle" => "Text",
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"RssUrl" => "Text",
"NumberToShow" => "Int"
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);
static $defaults = array(
"NumberToShow" => 10,
"RSSTitle" => 'RSS Feed'
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);
static $cmsTitle = "RSS Feed";
static $description = "Shows the latest entries of a RSS feed.";
/**
* If the RssUrl is relative, convert it to absolute with the
* current baseURL to avoid confusing simplepie.
* Passing relative URLs to simplepie will result
* in strange DNS lookups and request timeouts.
*
* @return string
*/
function getAbsoluteRssUrl() {
$urlParts = parse_url($this->RssUrl);
if(!isset($urlParts['host']) || !$urlParts['host']) {
return Director::absoluteBaseURL() . $this->RssUrl;
} else {
return $this->RssUrl;
}
}
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function getCMSFields() {
return new FieldSet(
new TextField("RSSTitle", _t('RSSWidget.CT', "Custom title for the feed")),
new TextField("RssUrl", _t('RSSWidget.URL', "URL of RSS Feed")),
new NumericField("NumberToShow", _t('RSSWidget.NTS', "Number of Items to show"))
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);
}
function Title() {
return ($this->RSSTitle) ? $this->RSSTitle : 'RSS Feed';
}
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function FeedItems() {
$output = new DataObjectSet();
$this->feed = new SimplePie($this->AbsoluteRssUrl);
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$this->feed->init();
if($items = $this->feed->get_items(0, $this->NumberToShow)) {
foreach($items as $item) {
$output->push(new ArrayData(array(
"Title" => $item->get_title(),
"Link" => $item->get_link()
)));
}
return $output;
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}
}
}
?>