Added support for permissions. Next is to implement some.

git-svn-id: file:///svn-source/pmgr/branches/pre_0.1_work_20090819@798 97e9348a-65ac-dc4b-aefc-98561f571b83

site/models/permission_value.php

@@ -0,0 +1,36 @@
+<?php
+class PermissionValue extends AppModel {
+
+  var $belongsTo =
+    array('Permission',
+	  );
+
+  var $hasMany =
+    array('UserPermission',
+	  'SitePermission',
+	  'GroupPermission',
+	  'DefaultPermission',
+	  );
+
+  function values($name = null, $query = null) {
+    $this->prEnter(compact('name', 'query'));
+    $this->queryInit($query);
+
+    $query['link']['Permission'] = array();
+
+    if (!empty($name)) {
+      $query['conditions'][] = array('Permission.name' => $name);
+      $query['link']['Permission']['fields'] = array();
+    }
+
+    $this->cacheQueries = true;
+    $values = array();
+    foreach ($this->find('all', $query) AS $result)
+      $values[] = array('access' => $result['PermissionValue']['access'],
+			'level'  => $result['PermissionValue']['level']);
+    $this->cacheQueries = false;
+
+    return $this->prReturn($values);
+  }
+
+}