Merge in from pre_0.1 branch

git-svn-id: file:///svn-source/pmgr/trunk/site@847 97e9348a-65ac-dc4b-aefc-98561f571b83

models/user.php

@@ -0,0 +1,39 @@
+<?php
+class User extends AppModel {
+
+  var $hasMany =
+    array('UserOption',
+	  'Membership',
+	  );
+
+  static $current_user_id;
+
+  function currentUser() {
+    if (!empty($_SERVER['REMOTE_USER']))
+      return $_SERVER['REMOTE_USER'];
+
+    return null;
+  }
+
+  function currentUserId() {
+    if (!empty(self::$current_user_id))
+      return self::$current_user_id;
+
+    $user = $this->find
+      ('first',
+       array('recursive' => -1,
+	     'conditions' => array('login' => $this->currentUser())));
+
+    if (!empty($user['User']['id']))
+      self::$current_user_id = $user['User']['id'];
+    else
+      // We must force a stop here, since this is typically
+      // called very early on, and so will cause a recursive
+      // crash as we try to render the internal error and
+      // again stumble on this problem.
+      $this->INTERNAL_ERROR('UNKNOWN USER', 0, true);
+
+    return self::$current_user_id;
+  }
+
+}