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<?php
/**
* Provides functionality to list (or get) objects related to the current object based on a search of the tags
* the assigned to the current object.
*
* @package plugins
*/
$plugin_description = gettext('Provides functionality to get the related items to an item based on a tag search.');
$plugin_author = "Malte Müller (acrylian)";
function getRelatedItems($type = 'news', $album = NULL) {
global $_zp_gallery, $_zp_current_album, $_zp_current_image, $_zp_current_zenpage_page, $_zp_current_zenpage_news, $_zp_gallery_page;
$tags = getTags();
if (!empty($tags)) { // if there are tags at all
$searchstring = '';
$count = '';
foreach ($tags as $tag) {
$count++;
if ($count == 1) {
$bool = '';
} else {
$bool = '|'; // connect tags by OR to get a wide range
}
$searchstring .= $bool . $tag;
}
$paramstr = urlencode('words') . '=' . $searchstring . '&searchfields=tags';
if (!is_null($album)) {
$paramstr = '&albumname=' . urlencode($album);
}
$search = new SearchEngine();
switch ($type) {
case 'albums':
$paramstr .= '&inalbums=1';
break;
case 'images':
$paramstr .= '&inimages=1';
break;
case 'news':
$paramstr .= '&innews=1';
break;
case 'pages':
$paramstr .= '&inpages=1';
break;
case 'all':
$paramstr .= '&inalbums=1&inimages=1&innews=1&inpages=1';
break;
}
$search->setSearchParams($paramstr);
// get the results
switch ($type) {
case 'albums':
$albumresult = $search->getAlbums(0, "date", "desc");
$result = createRelatedItemsResultArray($albumresult, $type);
break;
case 'images':
$imageresult = $search->getImages(0, 0, 'date', 'desc');
$result = createRelatedItemsResultArray($imageresult, $type);
break;
case 'news':
$newsresult = $search->getArticles(0, NULL, true, "date", "desc");
$result = createRelatedItemsResultArray($newsresult, $type);
break;
case 'pages':
$pageresult = $search->getPages();
$result = createRelatedItemsResultArray($pageresult, $type);
break;
case 'all':
$albumresult = $search->getAlbums(0, "date", "desc");
$imageresult = $search->getImages(0, 0, 'date', 'desc');
$newsresult = $search->getArticles(0, NULL, true, "date", "desc");
$pageresult = $search->getPages();
$result1 = createRelatedItemsResultArray($albumresult, 'albums');
$result2 = createRelatedItemsResultArray($imageresult, 'images');
$result3 = createRelatedItemsResultArray($newsresult, 'news');
$result4 = createRelatedItemsResultArray($pageresult, 'pages');
$result = array_merge($result1, $result2, $result3, $result4);
$result = sortMultiArray($result, 'weight', true, true, false, false); // sort by search result weight
break;
}
return $result;
}
return array();
}
/**
* Helper function for getRelatedItems() only.
* Returns an array with array for each item with name, album (images only), type and weight (search weight value)
* Excludes the current item itself.
*
* @param array $result array with search results
* @param string $type "albums", "images", "news", "pages"
*/
function createRelatedItemsResultArray($result, $type) {
global $_zp_gallery, $_zp_current_album, $_zp_current_image, $_zp_current_zenpage_page, $_zp_current_zenpage_news, $_zp_gallery_page;
switch ($_zp_gallery_page) {
case 'album.php':
$current = $_zp_current_album;
break;
case 'image.php':
$current = $_zp_current_image;
break;
case 'news.php':
$current = $_zp_current_zenpage_news;
break;
case 'pages.php':
$current = $_zp_current_zenpage_page;
break;
}
$results = array();
foreach ($result as $item) {
switch ($type) {
case 'albums':
if (get_class($current) != 'Album' || $current->name != $item) {
array_push($results, array('name' => $item, 'album' => '', 'type' => $type, 'weight' => '13')); // doesn't have weight so we just add one for sorting later
}
break;
case 'images':
if (get_class($current) != 'Image' || ($current->filename != $item['filename'] && $current->getAlbum()->name != $item['folder'])) {
array_push($results, array('name' => $item['filename'], 'album' => $item['folder'], 'type' => $type, 'weight' => $item['weight']));
}
break;
case 'news':
if (get_class($current) != 'ZenpageNews' || $current->getTitlelink() != $item['titlelink']) {
if (!isset($item['weight']))
$item['weight'] = 13; // there are circumstances where weights are not generated.
array_push($results, array('name' => $item['titlelink'], 'album' => '', 'type' => $type, 'weight' => $item['weight']));
}
break;
case 'pages':
if (get_class($current) != 'ZenpagePage' || $current->getTitlelink() != $item) {
array_push($results, array('name' => $item, 'album' => '', 'type' => $type, 'weight' => '13')); // doesn't have weight so we just add one for sorting later
}
break;
}
}
return $results;
}
/**
* Prints the x related articles based on a tag search
*
* @param int $number Number of items to get
* @param string $type 'albums', 'images','news','pages', "all" for all combined.
* @param string $specific If $type = 'albums' or 'images' name of album
* @param bool $excerpt If a text excerpt (gallery items: description; Zenpage items: content) should be shown. NULL for none or number of length
* @param bool $thumb For $type = 'albums' or 'images' if a thumb should be shown (default size as set on the options)
*/
function printRelatedItems($number = 5, $type = 'news', $specific = NULL, $excerpt = NULL, $thumb = false, $date = false) {
global $_zp_gallery, $_zp_current_album, $_zp_current_image, $_zp_current_zenpage_page, $_zp_current_zenpage_news;
$label = array('albums' => gettext('Albums'), 'images' => gettext('Images'), 'news' => gettext('News'), 'pages' => gettext('Pages'));
$result = getRelatedItems($type, $specific);
$resultcount = count($result);
if ($resultcount != 0) {
?>
<h3 class="relateditems">
<?php printf(gettext('Related %s'), $type); ?>
</h3>
<ul id="relateditems">
<?php
$count = 0;
foreach ($result as $item) {
$count++;
?>
<li class="<?php echo $item['type']; ?>">
<?php
$category = '';
switch ($item['type']) {
case 'albums':
$obj = newAlbum($item['name']);
$url = $obj->getAlbumLink();
$text = $obj->getDesc();
$category = gettext('Album');
break;
case 'images':
$alb = newAlbum($item['album']);
$obj = newImage($alb, $item['name']);
$url = $obj->getImageLink();
$text = $obj->getDesc();
$category = gettext('Image');
break;
case 'news':
$obj = new ZenpageNews($item['name']);
$url = getNewsURL($obj->getTitlelink());
$text = $obj->getContent();
$category = gettext('News');
break;
case 'pages':
$obj = new ZenpagePage($item['name']);
$url = getPageLinkURL($obj->getTitlelink());
$text = $obj->getContent();
$category = gettext('Page');
break;
}
?>
<?php
if ($thumb) {
$thumburl = false;
switch ($item['type']) {
case 'albums':
$thumburl = $obj->getAlbumThumb();
break;
case 'images':
$thumburl = $obj->getThumb();
break;
}
if ($thumburl) {
?>
<a href="<?php echo html_encode(pathurlencode($url)); ?>" title="<?php echo html_encode($obj->getTitle()); ?>" class="relateditems_thumb">
<img src="<?php echo html_encode(pathurlencode($thumburl)); ?>" alt="<?php echo html_encode($obj->getTitle()); ?>" />
</a>
<?php
}
}
?>
<h4><a href="<?php echo html_encode(pathurlencode($url)); ?>" title="<?php echo html_encode($obj->getTitle()); ?>"><?php echo html_encode($obj->getTitle()); ?></a>
<?php
if ($date) {
switch ($item['type']) {
case 'albums':
case 'images':
$d = $obj->getDateTime();
break;
case 'news':
case 'pages':
$d = $obj->getDateTime();
break;
}
?>
<span class="relateditems_date">
<?php echo zpFormattedDate(DATE_FORMAT, strtotime($d)); ?>
</span>
<?php
}
?>
<?php if ($type == 'all') { ?> (<small><?php echo $category; ?></small>)<?php } ?>
</h4>
<?php
if ($excerpt) {
echo shortenContent($text, $excerpt, '...', true);
}
?>
</li>
<?php
if ($count == $number) {
break;
}
} // foreach
if ($count) {
?>
</ul>
<?php
}
}
}
?>
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