First pass at implementing a new lock tracking mechnism. Not complete, but the basics seem to work

git-svn-id: file:///svn-source/pmgr/branches/v0.3_work@1038 97e9348a-65ac-dc4b-aefc-98561f571b83

site/models/unit.php

@@ -25,6 +25,11 @@ class Unit extends AppModel {
 
 	var $hasMany = array(
 		'Lease',
+		'LocksUnit'
+	);
+
+	var $hasAndBelongsToMany = array(
+		'Lock'
 	);
 
 	//var $default_log_level = array('log' => 30, 'show' => 15);
@@ -209,6 +214,40 @@ class Unit extends AppModel {
   }
 
 
+  /**************************************************************************
+   **************************************************************************
+   **************************************************************************
+   * function: lockUnit
+   *  - Put lock on unit
+   */
+  function lockUnit($id, $lock_ids) {
+    $this->prEnter(compact('id', 'lock_ids'));
+    $this->id = $id;
+
+    // Remove any exising locks for this unit
+    $this->LocksUnit->deleteAll
+      (array('unit_id' => $id), false);
+
+    // We'll proceed forward as much as possible, even
+    // if we encounter an error.  For now, we'll assume
+    // the operation will succeed.
+    $ret = true;
+
+    // Go through each lock, and put them on the unit
+    foreach ($lock_ids AS $lock_id) {
+      $pair['unit_id'] = $id;
+      $pair['lock_id'] = $lock_id;
+
+      // Save the relationship between lock and unit
+      $LU = new LocksUnit();
+      if (!$LU->save($pair, false))
+	$ret = false;
+    }
+
+    return $this->prReturn($ret);
+  }
+
+
   /**************************************************************************
    **************************************************************************
    **************************************************************************