Added ability to lock unlock any unit, and to track that based on the actual locks that are on it, not the lock status.

git-svn-id: file:///svn-source/pmgr/branches/v0.3_work@1042 97e9348a-65ac-dc4b-aefc-98561f571b83

site/models/unit.php

@@ -248,6 +248,23 @@ class Unit extends AppModel {
   }
 
 
+  /**************************************************************************
+   **************************************************************************
+   **************************************************************************
+   * function: lockCount
+   *  - Number of locks on a unit
+   */
+  function lockCount($id) {
+    $this->prEnter(compact('id'));
+    return $this->prReturn($this->find
+			   ('count', array
+			    ('fields' => array("COUNT(Lock.id) AS count"),
+			     'link' => array('Lock'),
+			     'conditions' => array('Unit.id' => $id),
+			     )));
+  }
+
+
   /**************************************************************************
    **************************************************************************
    **************************************************************************