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117 lines
4.9 KiB
PHP
117 lines
4.9 KiB
PHP
<?php
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// This file adds support to rss feeds generation
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// This function is the main entry point to database module
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// rss feeds generation. Foreach database with rss enabled
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// build one XML rss structure.
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function data_rss_feeds() {
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global $CFG, $DB;
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$status = true;
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// Check CFG->enablerssfeeds.
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if (empty($CFG->enablerssfeeds)) {
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debugging("DISABLED (admin variables)");
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}
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// Check CFG->data_enablerssfeeds.
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else if (empty($CFG->data_enablerssfeeds)) {
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debugging("DISABLED (module configuration)");
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}
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// It's working so we start...
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else {
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// Iterate over all data.
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if ($datas = $DB->get_records('data')) {
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foreach ($datas as $data) {
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if ($data->rssarticles > 0) {
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// Get the first field in the list (a hack for now until we have a selector)
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if (!$firstfield = $DB->get_record_sql('SELECT id,name FROM {data_fields} WHERE dataid = ? ORDER by id', array($data->id), true)) {
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continue;
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}
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// Get the data_records out.
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$approved = ($data->approval) ? ' AND dr.approved = 1 ' : ' ';
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$sql = "SELECT dr.*, u.firstname, u.lastname
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FROM {data_records} dr, {user} u
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WHERE dr.dataid = ? $approved
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AND dr.userid = u.id
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ORDER BY dr.timecreated DESC";
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if (!$records = $DB->get_records_sql($sql, array($data->id), 0, $data->rssarticles)) {
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continue;
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}
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$firstrecord = array_shift($records); // Get the first and put it back
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array_unshift($records, $firstrecord);
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$filename = rss_file_name('data', $data);
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if (file_exists($filename)) {
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if (filemtime($filename) >= $firstrecord->timemodified) {
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continue;
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}
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}
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// Now create all the articles
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mtrace('Creating feed for '.$data->name);
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$items = array();
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foreach ($records as $record) {
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$recordarray = array();
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array_push($recordarray, $record);
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$item = null;
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// guess title or not
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if (!empty($data->rsstitletemplate)) {
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$item->title = data_print_template('rsstitletemplate', $recordarray, $data, '', 0, true);
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} else { // else we guess
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$item->title = strip_tags($DB->get_field('data_content', 'content',
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array('fieldid'=>$firstfield->id, 'recordid'=>$record->id)));
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}
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$item->description = data_print_template('rsstemplate', $recordarray, $data, '', 0, true);
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$item->pubdate = $record->timecreated;
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$item->link = $CFG->wwwroot.'/mod/data/view.php?d='.$data->id.'&rid='.$record->id;
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array_push($items, $item);
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}
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$course = $DB->get_record('course', array('id'=>$data->course));
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// First all rss feeds common headers.
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$header = rss_standard_header($course->shortname.': '.format_string($data->name,true),
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$CFG->wwwroot."/mod/data/view.php?d=".$data->id,
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format_string($data->intro,true));
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if (!empty($header)) {
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$articles = rss_add_items($items);
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}
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// Now all rss feeds common footers.
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if (!empty($header) && !empty($articles)) {
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$footer = rss_standard_footer();
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}
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// Now, if everything is ok, concatenate it.
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if (!empty($header) && !empty($articles) && !empty($footer)) {
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$rss = $header.$articles.$footer;
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//Save the XML contents to file.
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$status = rss_save_file('data', $data, $rss);
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}
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else {
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$status = false;
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}
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}
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}
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}
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}
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return $status;
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}
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?>
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