root/trunk/trax/vendor/trax/scaffold_controller.php

<?php
/**
 *  File containing the ScaffoldController class
 *
 *  (PHP 5)
 *
 *  @package PHPonTrax
 *  @version $Id$
 *  @copyright (c) 2005 John Peterson
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 *
 *  @todo Document this class
 */
class ScaffoldController extends ActionController {

    /**
     *
     *  @todo Document this method
     */
    function __construct($model_name) {
        $model_name = strtolower($model_name);
        $this->model_name = Inflector::camelize($model_name);
        $this->model_object_name = Inflector::singularize($model_name);
        $this->model_class = Inflector::classify($model_name);
        $this->model_name_plural = Inflector::pluralize($model_name);
        $this->model_name_human = Inflector::humanize($model_name);
        if(!class_exists($this->model_class, true)) {
            $this->raise("Trying to use scaffolding on a non-existing Model ".$model_name, "Unknown Model", "404");
        }
    }

    /**
     *
     *  @todo Document this method
     */
    function index() {
        $model_class = $this->model_class;
        $model = new $model_class();
        $this->content_columns = $model->content_columns;
        $this->models = $model->find_all();
    }

    /**
     *
     *  @todo Document this method
     */
    function show() {
        $model_class = $this->model_class;
        $model = new $model_class();
        $this->{$this->model_object_name} = $model->find($_REQUEST['id']);
    }

    /**
     *
     *  @todo Document this method
     */
    function add() {
        $model_class = $this->model_class;
        $this->{$this->model_object_name} = new $model_class($_REQUEST[$this->model_object_name]);
        if($_POST) {
            if($this->{$this->model_object_name}->save($_POST[$this->model_object_name])) {
                Session::flash('notice', $this->model_name_human." was successfully created.");
                $this->redirect_to = url_for(array(":action" => "index"));
            } else {
                Session::flash('error', "Error adding ".$this->model_name_human." to the database.");
            }
        }
    }
    
    /**
     *
     *  @todo Document this method
     */
    function edit() {
        $model_class = $this->model_class;
        $model = new $model_class();
        $this->{$this->model_object_name} = $model->find($_REQUEST['id']);  
        if($_POST) {
            if($this->{$this->model_object_name}->save($_POST[$this->model_object_name])) {
                Session::flash('notice', $this->model_name_human." was successfully updated.");
                $this->redirect_to = url_for(array(":action" => "show", ":id" => $this->{$this->model_object_name}));
            } else {
                Session::flash('error', "Error saving ".$this->model_name_human." to the database.");
            }
        }
    }
    
    /**
     *
     *  @todo Document this method
     */
    function delete() {
        if($_REQUEST['id'] > 0) {
            $model_class = $this->model_class;
            $model = new $model_class();
            $model = $model->find($_REQUEST['id']);
            if($model->delete()) {
                Session::flash('notice', $this->model_name_human." was successfully deleted.");
            } else {
                Session::flash('error', "Error deleting ".$this->model_name_human." from the database.");
            }
        }
        $this->redirect_to = url_for(array(":action" => "index"));
    }

}

// -- set Emacs parameters --
// Local variables:
// tab-width: 4
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:
?>