Removed the Balance column from vacant and unavailable grids, since they should always be zero.

git-svn-id: file:///svn-source/pmgr/branches/pre_0.1_work_20090819@792 97e9348a-65ac-dc4b-aefc-98561f571b83

site/views/elements/units.ctp

@@ -13,6 +13,9 @@ $cols['Status']   = array('index' => 'Unit.status',   'formatter' => 'name'); //
 $cols['Balance']  = array('index' => 'balance',       'formatter' => 'currency');
 $cols['Comment']  = array('index' => 'Unit.comment',  'formatter' => 'comment');
 
+if (in_array($this->params['action'], array('vacant', 'unavailable')))
+  $grid->invalidFields('Balance');
+
 // Render the grid
 $grid
 ->columns($cols)