1 files changed, 59 insertions, 0 deletions
diff --git a/library/Pbs/Graph.php b/library/Pbs/Graph.php
new file mode 100644
index 0000000..13bbe3a
--- /dev/null
+++ b/library/Pbs/Graph.php
@@ -0,0 +1,59 @@
+<?php
+
+class Pbs_Graph{
+
+	private $db = null;
+	private $membership;
+	private $graphstring;
+	
+	public function graph($groupID)
+    {
+		$this->db = Zend_Db_Table::getDefaultAdapter();
+        $db = $this->db;
+        
+        
+        
+        $this->graphstring = 'digraph groups {
+				size="6,6";';
+		$this->getParentGroups($groupID);
+		$this->getChildGroups($groupID);
+		$this->graphstring .= '}';
+    	   $this->graphstring =  str_replace(array("\t","\n"),"",$this->graphstring);
+	       return str_replace('"','\"',$this->graphstring);
+	}
+	private function getGroupTitle($groupID){
+		$group = new Application_Model_Group();
+		$groupmapper = new Application_Model_GroupMapper();
+		$groupmapper->find($groupID,$group);
+		return $group->getTitle();
+	}
+				
+	private function getParentGroups($groupID, $level=1) {
+		$db = Zend_Db_Table::getDefaultAdapter();
+		$query = 'SELECT parentID FROM pbs_groupgroups WHERE groupID="'.$groupID.'"';
+		$stmt = $db->query($query);
+		$result = $stmt->fetchAll();
+		foreach($result as $row){			
+			// save the current groupID in level-list
+			#$data[$level][] = $row['parentID'];
+			$this->graphstring .= '"'.$this->getGroupTitle($row['parentID']).'" -> "'.$this->getGroupTitle($groupID).'";'."\n";
+			// get the function recursive an increase the level
+			$this->getParentGroups($row['parentID'], $level+1);
+		}
+	}
+	
+	// Gets all childs-groups from a given group
+	private function getChildGroups($groupID, $level=1) {
+		$db = Zend_Db_Table::getDefaultAdapter();
+		$query = 'SELECT groupID FROM pbs_groupgroups WHERE parentID="'.$groupID.'"';
+		$stmt = $db->query($query);
+		$result = $stmt->fetchAll();
+		foreach($result as $row){	
+			// save the current groupID in level-list
+			#$data[$level][] = $row['groupID'];
+			$this->graphstring .= '"'.$this->getGroupTitle($groupID).'" -> "'.$this->getGroupTitle($row['groupID']).'";'."\n";
+			// get the function recursive an increase the level
+			$this->getChildGroups($row['groupID'], $level+1);
+		}
+	}
+}