function lifestream_opml_feed()
{
/**
* Outputs an OPML feed which can be used to backup your lifestream settings.
* @todo
*/
global $wpdb, $lifestream;
$date = $lifestream->date_format(DATE_RFC822);
$lines = array('<?xml version="1.0" encoding="UTF-8"?>');
$lines[] = '<!-- OPML generated by Lifestream ' . LIFESTREAM_VERSION . ' on ' . $date . ' -->';
$lines[] = '<opml version="1.1">';
$lines[] = ' <head>';
$lines[] = ' <title>lifestream.feeds</title>';
$lines[] = ' <dateCreated>' . $date . '</dateCreated>';
$lines[] = ' <dateModified>' . $date . '</dateModified>';
$lines[] = ' </head>';
$lines[] = ' <body>';
$list_of_feeds = array();
foreach ($lifestream->feeds as $key => $class) {
if (method_exists($class, 'get_url')) {
$list_of_feeds[] = $key;
}
}
if (count($list_of_feeds)) {
$results =& $wpdb->get_results("SELECT * FROM `" . $wpdb->prefix . "lifestream_feeds` WHERE `feed` IN ('" . implode("', '", $list_of_feeds) . "')");
foreach ($results as $result) {
$instance = Lifestream_Feed::construct_from_query_result($lifestream, $result);
if (method_exists($instance, 'get_url')) {
$urls = $instance->get_url();
if (!is_array($urls)) {
$urls = array($urls);
}
$items = array();
foreach ($urls as $url_data) {
if (is_array($url_data)) {
// url, key
list($url, $key) = $url_data;
} else {
$url = $url_data;
$key = '';
}
$lines[] = ' <outline text="' . htmlspecialchars($instance->get_feed_display()) . '" xmlUrl="' . $url . '" type="' . $instance->get_constant('ID') . '"/>';
}
}
}
}
$lines[] = ' </body>';
$lines[] = '</opml>';
echo implode("\n", $lines);
}
function lifestream_widget_control($widget_args = 1)
{
global $wp_registered_widgets, $wpdb, $lifestream;
// Whether or not we have already updated the data after a POST submit
static $updated = false;
if (is_numeric($widget_args)) {
$widget_args = array('number' => $widget_args);
}
$widget_args = wp_parse_args($widget_args, array('number' => -1));
extract($widget_args, EXTR_SKIP);
// Data should be stored as array: array( number => data for that instance of the widget, ... )
$options = (array) $lifestream->get_option('widget');
// We need to update the data
if (!$updated && !empty($_POST['sidebar'])) {
// Tells us what sidebar to put the data in
$sidebar = (string) $_POST['sidebar'];
$sidebars_widgets = wp_get_sidebars_widgets();
if (isset($sidebars_widgets[$sidebar])) {
$this_sidebar =& $sidebars_widgets[$sidebar];
} else {
$this_sidebar = array();
}
foreach ($this_sidebar as $_widget_id) {
// Remove all widgets of this type from the sidebar. We'll add the new data in a second. This makes sure we don't get any duplicate data
// since widget ids aren't necessarily persistent across multiple updates
if ('lifestream_widget' == $wp_registered_widgets[$_widget_id]['callback'] && isset($wp_registered_widgets[$_widget_id]['params'][0]['number'])) {
$widget_number = $wp_registered_widgets[$_widget_id]['params'][0]['number'];
if (!in_array("lifestream-{$widget_number}", $_POST['widget-id'])) {
// the widget has been removed. "many-$widget_number" is "{id_base}-{widget_number}
unset($options[$widget_number]);
}
}
}
foreach ((array) $_POST['lifestream'] as $widget_number => $widget_options) {
// user clicked cancel
if (!isset($widget_options['submit']) && isset($options[$widget_number])) {
continue;
}
$options[$widget_number] = $widget_options;
}
$lifestream->update_option('widget', $options);
// So that we don't go through this more than once
$updated = true;
}
// Here we echo out the form
if (-1 == $number) {
$current_options = array('amount' => 10, 'title' => 'Lifestream', 'break_groups' => false, 'feeds' => array(), 'hide_metadata' => false);
$number = '%i%';
} else {
$current_options = (array) $options[$number];
foreach ($current_options as $key => $value) {
$current_options[$key] = attribute_escape($value);
}
}
$results =& $wpdb->get_results("SELECT * FROM `" . $wpdb->prefix . "lifestream_feeds` ORDER BY `id`");
$feeds = array();
foreach ($results as &$result) {
$feeds[] = Lifestream_Feed::construct_from_query_result($lifestream, $result);
}
// The form has inputs with names like widget-many[$number][something] so that all data for that instance of
// the widget are stored in one $_POST variable: $_POST['widget-many'][$number]
?>
<script type="text/javascript">
// TODO: move this out of the recursive wrapper
function lifestreamClearSelection(obj) {
for (var i=0; i<obj.options.length; i++) {
obj.options[i].selected = false;
}
}
</script>
<p>
<label>
<?php
$lifestream->_e('Title:');
?>
<input class="widefat" name="lifestream[<?php
echo $number;
?>
][title]" type="text" value="<?php
echo $current_options['title'];
?>
" />
</label>
</p>
<p>
<label>
<?php
$lifestream->_e('Number of events to show:');
?>
<input style="width: 35px; text-align: center;" name="lifestream[<?php
echo $number;
?>
][amount]" type="text" value="<?php
echo $current_options['amount'];
?>
" />
</label>
</p>
<p>
<label>
<input type="checkbox" name="lifestream[<?php
echo $number;
?>
][break_groups]" value="1"<?php
if (@$current_options['break_groups']) {
echo ' checked = "checked"';
}
?>
/>
<?php
$lifestream->_e('Break up grouped events.');
?>
</label><br />
</p>
<p>
<label>
<input type="checkbox" name="lifestream[<?php
echo $number;
?>
][hide_metadata]" value="1"<?php
if (@$current_options['hide_metadata']) {
echo ' checked = "checked"';
}
?>
/>
<?php
$lifestream->_e('Hide meta data, such as the time.');
?>
</label><br />
</p>
<p>
<?php
$lifestream->_e('Feeds to show (optional):');
?>
<small>(<a href="javascript:void(0);" onclick="lifestreamClearSelection(this.parentNode.parentNode.getElementsByTagName('select')[0]);"><?php
$lifestream->_e('Clear Selection');
?>
</a>)</small><br />
<select multiple="multiple" style="width: 92%; height: 80px;" name="lifestream[<?php
echo $number;
?>
][feeds][]">
<?php
foreach ($feeds as &$feed) {
?>
<option value="<?php
echo $feed->id;
?>
"<?php
if (in_array((string) $feed->id, @(array) $current_options['feeds'])) {
echo ' selected="selected"';
}
?>
><?php
echo $feed->get_public_name();
?>
(<?php
echo $feed->get_feed_display();
?>
)</option>
<?php
}
?>
</select>
</p>
<input type="hidden" name="lifestream[<?php
echo $number;
?>
][submit]" value="1" />
<?php
}
function update_all($user_id = null)
{
// $user_id is not implemented yet
global $wpdb;
$this->update_option('_last_update', time());
$events = array();
$results =& $wpdb->get_results("SELECT * FROM `" . $wpdb->prefix . "lifestream_feeds` WHERE `active` = 1");
foreach ($results as $result) {
$instance = Lifestream_Feed::construct_from_query_result($this, $result);
try {
$feed_msg = $instance->refresh();
$events[$instance->id] = $feed_msg[1];
} catch (Lifestream_FeedFetchError $ex) {
$this->log_error($ex, $instance->id);
$events[$instance->id] = $ex;
}
}
return $events;
}
