<?php

/******************************************************************************
* Administration Article Edit <administration_article_edit.php>
*
* Author: Michael McMullen <michael.mcmullen@tutelagesystems.com>
******************************************************************************/

require_once '../System/configuration.php';

class AdministrationArticleEditPage extends MasterTemplate
{
	
	var $template					= 'admin_article_edit.html';
	var $output 					= array();
	
	function AdministrationArticleEditPage()
	{
		// Call the Master Template Constructor
		parent::__construct();
		
		// Validate for Administrator
		if(! isset($_SESSION['administration']))
		{
			$this->redirect('login.php');
		}
		
		// Load Categories for drop down
		$this->output['categories'] = $this->LoadCategories();
		
		// Check for Post
		$this->SaveArticle();
		
		// Check for Edit
		$this->LoadArticle();
		
		// Add a Crumb
		$this->AddBreadCrumb('Welcome', $this->output['webRoot']);
		$this->AddBreadCrumb('Administration', 'administration.php');
		$this->AddBreadCrumb('Article Management', 'administration_article.php');
		$this->AddBreadCrumb('Add / Edit Article', null);
		
			
		// Render the Template
		$this->RenderTemplate();
	}
	
	// Renders the index template (called from master)
	function outputBody()
	{
		$body = new HTML_Template_Flexy($this->config['flexy']);
		$body->compile($this->template);
		$body->outputObject($this);
	}
	
	function LoadArticle()
	{
		$article_id = intval($_GET['article_id']);
		
		if($article_id > 0)
		{
			$article_db = DB_DataObject::factory('articles');
			$article_db->article_id = $article_id;
			if($article_db->find(true))
			{
				$this->output['article']							= $article_db->toArray();
				
				$category_db = DB_DataObject::factory('categories');
				$category_db->category_id = $article_db->article_category_id;
				if($category_db->find(true))
				{
					$this->output['article']['category']	= $category_db->toArray();
				}
			}
		}
		
		// Check for form data (from previous POST)
		$form_data = $this->GetFormData();
		if(! empty($form_data))
		{
			$this->output['article'] = $form_data;
			
			// Set article as active by default
			if(empty($this->output['article']['article_active']))
			{
				$this->output['article']['article_active'] = 1;
			}
		}
	}
	
	function SaveArticle()
	{
		if(isset($_POST['article']))
		{			
			$article_id						= 0;
			$article_category_id	= intval($_POST['article']['article_category_id']);
			$article_name 				= $_POST['article']['article_name'];
			$article_text 				= $_POST['article']['article_text'];
			$article_rank 				= $_POST['article']['article_rank']; // This will be validated later
			$article_active				= isset($_POST['article']['article_active']) ? intval($_POST['article']['article_active']) : 1;
			
			if(empty($article_name))
			{
				// Save Form Input
				$this->SaveFormInput($_POST['article']);
				// Show Error
				$this->output['errors'] = 'The Article Name cannot be empty.';
				return;
			}
			
			if(empty($article_category_id))
			{
				// Save Form Input
				$this->SaveFormInput($_POST['article']);
				// Show Error
				$this->output['errors'] = 'You must select a Category for this article.';
				return;
			}
			
			if(! empty($_POST['article']['article_id']))
			{
				$article_id = intval($_POST['article']['article_id']);
			}
			
			// Validate Rank
			if(empty($article_rank))
			{
				$article_db = DB_DataObject::factory('articles');
				$article_rank = $article_db->count();
			}
			
			// Are we updating or inserting
			if($article_id <= 0)
			{
				$article_db = DB_DataObject::factory('articles');
				$article_db->article_category_id	= $article_category_id;
				$article_db->article_name 				= $article_name;
				$article_db->article_text 				= $article_text;
				$article_db->article_rank 				= intval($article_rank);
				$article_db->insert();
			}
			else
			{
				$article_db = DB_DataObject::factory('articles');
				$article_db->article_id = $article_id;
				if(! $article_db->find(true))
				{
					$this->output['errors'] = 'The Article you are trying to edit could not be found.';
					return;
				}
				$article_db->article_category_id		= $article_category_id;
				$article_db->article_name 					= $article_name;
				$article_db->article_text						= $article_text;
				$article_db->article_rank 					= intval($article_rank);
				$article_db->article_active 				= $article_active;
				$article_db->update();
			}
			
			// We have inserted or updated successfully
			$this->redirect('administration_article.php');
		}
	}
	
	function LoadCategories()
	{
		$categories = array();
		
		$category_db = DB_DataObject::factory('categories');
		$category_db->category_active = 1;
		$category_db->orderBy('category_rank, category_name');
		$category_db->find();
		while($category_db->fetch())
		{
			$categories[$category_db->category_id] = $category_db->category_name;
		}
		
		return $categories;
	}
	
}

new AdministrationArticleEditPage();