format getPopularTags and add docblock

diff --git a/src/SemanticScuttle/Service/Bookmark2Tag.php b/src/SemanticScuttle/Service/Bookmark2Tag.php
index 4d2c969b955359a3d214b1692765f2cabf283e50..e3997ddd11c068df2e7bf11d483eb6cdbc8d412d 100644 (file)
--- a/src/SemanticScuttle/Service/Bookmark2Tag.php
+++ b/src/SemanticScuttle/Service/Bookmark2Tag.php
@@ -477,35 +477,70 @@ class SemanticScuttle_Service_Bookmark2Tag extends SemanticScuttle_DbService
         return $this->getPopularTags($contacts, $limit, $logged_on_user, $days);
     }
 
-    // $users can be {NULL, an id, an array of id}
-    function &getPopularTags($user = NULL, $limit = 30, $logged_on_user = NULL, $days = NULL) {
+    /**
+     * The the most popular tags and their usage count
+     *
+     * @param mixed   $user           Integer user ID or array of user IDs to limit tag
+     *                                finding to
+     * @param integer $limit          Number of tags to return
+     * @param integer $logged_on_user ID of the user that's currently logged in.
+     *                                If the logged in user equals the $user to find
+     *                                tags for, tags of private bookmarks are
+     *                                returned.
+     * @param integer $days           Bookmarks have to be changed in the last X days
+     *                                if their tags shall count*
+     *
+     * @return array Array of found tags. Each tag entry is an array with two keys,
+     *               'tag' (tag name) and 'bCount'.
+     */
+    public function getPopularTags(
+        $user = null, $limit = 30, $logged_on_user = null, $days = null
+    ) {
         // Only count the tags that are visible to the current user.
-        if (($user != $logged_on_user) || is_null($user) || ($user === false))
-        $privacy = ' AND B.bStatus = 0';
-        else
-        $privacy = '';
+        if (($user != $logged_on_user) || is_null($user) || ($user === false)) {
+            $privacy = ' AND B.bStatus = 0';
+        } else {
+            $privacy = '';
+        }
 
-        if (is_null($days) || !is_int($days))
-        $span = '';
-        else
-        $span = ' AND B.bDatetime > "'. date('Y-m-d H:i:s', time() - (86400 * $days)) .'"';
+        if (is_null($days) || !is_int($days)) {
+            $span = '';
+        } else {
+            $span = ' AND B.bDatetime > "'
+                . date('Y-m-d H:i:s', time() - (86400 * $days))
+                . '"';
+        }
+
+        $query = 'SELECT'
+            . ' T.tag, COUNT(T.bId) AS bCount'
+            . ' FROM '
+            . $this->getTableName() . ' AS T'
+            . ', ' . $GLOBALS['tableprefix'] . 'bookmarks AS B'
+            . ' WHERE';
 
-        $query = 'SELECT T.tag, COUNT(T.bId) AS bCount FROM '. $this->getTableName() .' AS T, '. $GLOBALS['tableprefix'] .'bookmarks AS B WHERE ';
         if (is_null($user) || ($user === false)) {
-            $query .= 'B.bId = T.bId AND B.bStatus = 0';
-        } elseif(is_array($user)) {
+            $query .= ' B.bId = T.bId AND B.bStatus = 0';
+        } else if (is_array($user)) {
             $query .= ' (1 = 0';  //tricks
-            foreach($user as $u) {
-                $query .= ' OR B.uId = '. $this->db->sql_escape($u) .' AND B.bId = T.bId';
+            foreach ($user as $u) {
+                $query .= ' OR B.uId = ' . $this->db->sql_escape($u)
+                    . ' AND B.bId = T.bId';
             }
             $query .= ' )';
         } else {
-            $query .= 'B.uId = '. $this->db->sql_escape($user) .' AND B.bId = T.bId'. $privacy;
+            $query .= ' B.uId = ' . $this->db->sql_escape($user)
+                . ' AND B.bId = T.bId' . $privacy;
         }
-        $query .= $span .' AND LEFT(T.tag, 7) <> "system:" GROUP BY T.tag ORDER BY bCount DESC, tag';
 
-        if (!($dbresult =& $this->db->sql_query_limit($query, $limit))) {
-            message_die(GENERAL_ERROR, 'Could not get popular tags', '', __LINE__, __FILE__, $query, $this->db);
+        $query .= $span . ' AND LEFT(T.tag, 7) <> "system:"'
+            . ' GROUP BY T.tag'
+            . ' ORDER BY bCount DESC, tag';
+
+        if (!($dbresult = $this->db->sql_query_limit($query, $limit))) {
+            message_die(
+                GENERAL_ERROR, 'Could not get popular tags',
+                '', __LINE__, __FILE__, $query, $this->db
+            );
             return false;
         }
 
@@ -514,6 +549,8 @@ class SemanticScuttle_Service_Bookmark2Tag extends SemanticScuttle_DbService
         return $output;
     }
 
+
+
     function hasTag($bookmarkid, $tag) {
         $query = 'SELECT COUNT(*) AS tCount FROM '. $this->getTableName() .' WHERE bId = '. intval($bookmarkid) .' AND tag ="'. $this->db->sql_escape($tag) .'"';