/**
* Returns the html of a feed to be displaed in the block
*
* @param mixed feedrecord The feed record from the database
* @param int maxentries The maximum number of entries to be displayed
* @param boolean showtitle Should the feed title be displayed in html
* @return string html representing the rss feed content
*/
function get_feed_html($feedrecord, $maxentries, $showtitle)
{
global $CFG;
require_once $CFG->libdir . '/simplepie/moodle_simplepie.php';
$feed = new moodle_simplepie($feedrecord->url);
if (isset($CFG->block_rss_client_timeout)) {
$feed->set_cache_duration($CFG->block_rss_client_timeout * 60);
}
if (debugging() && $feed->error()) {
return '<p>' . $feedrecord->url . ' Failed with code: ' . $feed->error() . '</p>';
}
$r = '';
// return string
if ($this->config->block_rss_client_show_channel_image) {
if ($image = $feed->get_image_url()) {
$imagetitle = s($feed->get_image_title());
$imagelink = $feed->get_image_link();
$r .= '<div class="image" title="' . $imagetitle . '">' . "\n";
if ($imagelink) {
$r .= '<a href="' . $imagelink . '">';
}
$r .= '<img src="' . $image . '" alt="' . $imagetitle . '" />' . "\n";
if ($imagelink) {
$r .= '</a>';
}
$r .= '</div>';
}
}
if (empty($feedrecord->preferredtitle)) {
$feedtitle = $this->format_title($feed->get_title());
} else {
$feedtitle = $this->format_title($feedrecord->preferredtitle);
}
if ($showtitle) {
$r .= '<div class="title">' . $feedtitle . '</div>';
}
$r .= '<ul class="list no-overflow">' . "\n";
$feeditems = $feed->get_items(0, $maxentries);
foreach ($feeditems as $item) {
$r .= $this->get_item_html($item);
}
$r .= '</ul>';
if ($this->config->block_rss_client_show_channel_link) {
$channellink = $feed->get_link();
if (!empty($channellink)) {
//NOTE: this means the 'last feed' display wins the block title - but
//this is exiting behaviour..
$this->content->footer = '<a href="' . htmlspecialchars(clean_param($channellink, PARAM_URL)) . '">' . get_string('clientchannellink', 'block_rss_client') . '</a>';
}
}
if (empty($this->config->title)) {
//NOTE: this means the 'last feed' displayed wins the block title - but
//this is exiting behaviour..
$this->title = strip_tags($feedtitle);
}
return $r;
}
/**
* Returns the html of a feed to be displaed in the block
*
* @param mixed feedrecord The feed record from the database
* @param int maxentries The maximum number of entries to be displayed
* @param boolean showtitle Should the feed title be displayed in html
* @return block_rss_client\output\feed|null The renderable feed or null of there is an error
*/
public function get_feed($feedrecord, $maxentries, $showtitle)
{
global $CFG;
require_once $CFG->libdir . '/simplepie/moodle_simplepie.php';
$simplepiefeed = new moodle_simplepie($feedrecord->url);
if (isset($CFG->block_rss_client_timeout)) {
$simplepiefeed->set_cache_duration($CFG->block_rss_client_timeout * 60);
}
if ($simplepiefeed->error()) {
debugging($feedrecord->url . ' Failed with code: ' . $simplepiefeed->error());
return null;
}
if (empty($feedrecord->preferredtitle)) {
$feedtitle = $this->format_title($simplepiefeed->get_title());
} else {
$feedtitle = $this->format_title($feedrecord->preferredtitle);
}
if (empty($this->config->title)) {
//NOTE: this means the 'last feed' displayed wins the block title - but
//this is exiting behaviour..
$this->title = strip_tags($feedtitle);
}
$feed = new \block_rss_client\output\feed($feedtitle, $showtitle, $this->config->block_rss_client_show_channel_image);
if ($simplepieitems = $simplepiefeed->get_items(0, $maxentries)) {
foreach ($simplepieitems as $simplepieitem) {
try {
$item = new \block_rss_client\output\item($simplepieitem->get_id(), new moodle_url($simplepieitem->get_link()), $simplepieitem->get_title(), $simplepieitem->get_description(), new moodle_url($simplepieitem->get_permalink()), $simplepieitem->get_date('U'), $this->config->display_description);
$feed->add_item($item);
} catch (moodle_exception $e) {
// If there is an error with the RSS item, we don't
// want to crash the page. Specifically, moodle_url can
// throw an exception of the param is an extremely
// malformed url.
debugging($e->getMessage());
}
}
}
// Feed image.
if ($imageurl = $simplepiefeed->get_image_url()) {
try {
$image = new \block_rss_client\output\channel_image(new moodle_url($imageurl), $simplepiefeed->get_image_title(), new moodle_url($simplepiefeed->get_image_link()));
$feed->set_image($image);
} catch (moodle_exception $e) {
// If there is an error with the RSS image, we don'twant to
// crash the page. Specifically, moodle_url can throw an
// exception if the param is an extremely malformed url.
debugging($e->getMessage());
}
}
return $feed;
}
