App.php

<?php
class App extends Doctrine_Record {
    public function setTableDefinition() {
        $this->hasColumn('name', 'string', 32);
        $this->hasColumn('user_id', 'integer', 11);
        $this->hasColumn('app_category_id', 'integer', 11);
    }
    public function setUp() {
        $this->hasOne('User', 'User.id');
        $this->hasMany('App_Category as Category', 'App_Category.id');
    }        
}