'getTagsByRegExp',
'desc' => 'returns tags for given Regular Expression',
'params' => array(
'tags (required)' => 'string',
'namespace (optional)' => 'string',),
'return' => array('tags' => 'array'),
);
$result[] = array(
'name' => 'getTagsByNamespace',
'desc' => 'returns tags for given namespace',
'params' => array(
'namespace' => 'string',),
'return' => array('tags' => 'array'),
);
$result[] = array(
'name' => 'getTagsBySiteID',
'desc' => 'returns tags for given siteID',
'params' => array(
'siteID' => 'string',),
'return' => array('tags' => 'array'),
);
return $result;
}
/**
* Search index for tags using preg_match
* @param tags
* @param $ns
* return tags
*/
function getTagsByRegExp($tag_expr = null, $ns = '',$acl_safe = false){
$Htag = $this->Htag;
if(!$Htag) return false;
$tags = array_map('trim', idx_getIndex('subject','_w'));
$tag_label_r = array();
foreach($tags as $tag){
if( (is_null($tag_expr) || @preg_match('/^'.$tag_expr.'$/i',$tag)) && $this->_checkTagInNamespace($tag,$ns,$acl_safe)){
//$label =stristr($tag,':');
$label = strrchr($tag,':');
$label = $label !=''?$label:$tag;
$tag_label_r[$tag] = ucwords(trim(str_replace('_',' ',trim($label,':'))));
}
}
asort($tag_label_r);
return $tag_label_r;
}
/*
* Return all tags for a defined namespace
* @param namespace
* @param acl_safe
* @return tags for namespace
*/
function getTagsByNamespace($ns = '',$acl_safe = true){
return array_keys($this->getTagsByRegExp(null, $ns, $acl_safe));
}
/*
* Return all tags for a defined site
* @param siteID
* @return tags for site
*/
function getTagsBySiteID($siteID){
$meta = p_get_metadata($siteID,'subject');
if($meta === NULL) $meta=array();
return $meta;
}
function _tagCompare ($tag1,$tag2){
return $tag1==$tag2;
}
private function _checkTagInNamespace($tag,$ns,$acl_safe=true){
$Htag = $this->Htag;
if(!$Htag) return false;
if($ns == '') return true;
$indexer = idx_get_indexer();
$pages = $indexer->lookupKey('subject', $tag, array($this, '_tagCompare'));
foreach($page_r as $page){
if($Htag->_isVisible($page,$ns)) {
if (!$acl_safe) return true;
$perm = auth_quickaclcheck($page);
if (!$perm < AUTH_READ)
return true;
}
}
return false;
}
/**
* Categorysize Tags by the first part before a ':'
* @param array $tags Array of tags
*
* array('category1:tag1','category1:tag2','category2:tag1','category2:tag2')
*
* @returns array multidimensional array
*
* [category1] => 'category1:tag1'
* => 'category1:tag2'
* [category2] => 'category2:tag1'
* => 'category2:tag2'
*
*/
public function categorysizeTags($tags)
{
$catTags = array();
if ( empty($tags) ) return array();
foreach($tags as $nsTag){
list($category, $tag) = explode(':', $nsTag, 2);
if ( empty($tag) ) {
$tag = $category;
$category = '';
}
$catTags[$category][$tag]++;
}
ksort($catTags);
return $catTags;
}
}