/controllers/admin/AdminCategoriesController.php

<?php
/*
* 2007-2014 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2014 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class AdminCategoriesControllerCore extends AdminController
{
	/**
	 *  @var object Category() instance for navigation
	 */
	protected $_category = null;
	protected $position_identifier = 'id_category_to_move';
	
	/** @var boolean does the product have to be removed during the delete process */
	public $remove_products = true;

	/** @var boolean does the product have to be disable during the delete process */
	public $disable_products = false;

	private $original_filter = '';

	public function __construct()
	{
		$this->bootstrap = true;
		$this->table = 'category';
		$this->className = 'Category';
		$this->lang = true;
		$this->deleted = false;
		$this->explicitSelect = true;
		$this->_defaultOrderBy = 'position';
		$this->allow_export = true;

		$this->context = Context::getContext();

 		$this->fieldImageSettings = array(
 			'name' => 'image',
 			'dir' => 'c'
 		);

		$this->fields_list = array(
			'id_category' => array(
				'title' => $this->l('ID'),
				'align' => 'center',
				'class' => 'fixed-width-xs'
			),
			'name' => array(
				'title' => $this->l('Name')
			),
			'description' => array(
				'title' => $this->l('Description'),
				'callback' => 'getDescriptionClean',
				'orderby' => false
			),
			'position' => array(
				'title' => $this->l('Position'),
				'filter_key' => 'sa!position',
				'position' => 'position',
				'align' => 'center'
			),
			'active' => array(
				'title' => $this->l('Displayed'),
				'active' => 'status',
				'type' => 'bool',
				'class' => 'fixed-width-xs',
				'align' => 'center',
				'orderby' => false
			)
		);

		$this->bulk_actions = array(
			'delete' => array(
				'text' => $this->l('Delete selected'),
				'icon' => 'icon-trash',
				'confirm' => $this->l('Delete selected items?')
			)
		);
		$this->specificConfirmDelete = false;
		
		parent::__construct();
	}

	public function init()
	{
		parent::init();

		// context->shop is set in the init() function, so we move the _category instanciation after that
		if (($id_category = Tools::getvalue('id_category')) && $this->action != 'select_delete')
			$this->_category = new Category($id_category);
		else
		{
			if (Shop::isFeatureActive() && Shop::getContext() == Shop::CONTEXT_SHOP)
				$this->_category = new Category($this->context->shop->id_category);
			elseif (count(Category::getCategoriesWithoutParent()) > 1 && Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE') && count(Shop::getShops(true, null, true)) != 1)
				$this->_category = Category::getTopCategory();
			else
				$this->_category = new Category(Configuration::get('PS_HOME_CATEGORY'));
		}

		$count_categories_without_parent = count(Category::getCategoriesWithoutParent());
		$top_category = Category::getTopCategory();
		if (Tools::isSubmit('id_category'))
			$id_parent = $this->_category->id;
		elseif (!Shop::isFeatureActive() && $count_categories_without_parent > 1)
			$id_parent = $top_category->id;
		elseif (Shop::isFeatureActive() && $count_categories_without_parent == 1)
			$id_parent = Configuration::get('PS_HOME_CATEGORY');
		elseif (Shop::isFeatureActive() && $count_categories_without_parent > 1 && Shop::getContext() != Shop::CONTEXT_SHOP)
		{
			if (Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE') && count(Shop::getShops(true, null, true)) == 1)
				$id_parent = $this->context->shop->id_category;
			else
				$id_parent = $top_category->id;
		}
		else
			$id_parent = $this->context->shop->id_category;

		$this->_select = 'sa.position position';
		$this->original_filter = $this->_filter .= ' AND `id_parent` = '.(int)$id_parent.' ';

		if (Shop::getContext() == Shop::CONTEXT_SHOP)
			$this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'category_shop` sa ON (a.`id_category` = sa.`id_category` AND sa.id_shop = '.(int)$this->context->shop->id.') ';
		else
			$this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'category_shop` sa ON (a.`id_category` = sa.`id_category` AND sa.id_shop = a.id_shop_default) ';


		// we add restriction for shop
		if (Shop::getContext() == Shop::CONTEXT_SHOP && Shop::isFeatureActive())
			$this->_where = ' AND sa.`id_shop` = '.(int)Context::getContext()->shop->id;

		// if we are not in a shop context, we remove the position column
		if (Shop::isFeatureActive() && Shop::getContext() != Shop::CONTEXT_SHOP)
			unset($this->fields_list['position']);
		// shop restriction : if category is not available for current shop, we redirect to the list from default category
		if (Validate::isLoadedObject($this->_category) && !$this->_category->isAssociatedToShop() && Shop::getContext() == Shop::CONTEXT_SHOP)
		{
			$this->redirect_after = self::$currentIndex.'&id_category='.(int)$this->context->shop->getCategory().'&token='.$this->token;
			$this->redirect();
		}
	}

	public function initPageHeaderToolbar()
	{
		parent::initPageHeaderToolbar();

		if ($this->display != 'edit' && $this->display != 'add')
		{
			if (Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE'))
				$this->page_header_toolbar_btn['new-url'] = array(
					'href' => self::$currentIndex.'&add'.$this->table.'root&token='.$this->token,
					'desc' => $this->l('Add new root category', null, null, false)
				);

			$this->page_header_toolbar_btn['new_category'] = array(
				'href' => self::$currentIndex.'&addcategory&token='.$this->token,
				'desc' => $this->l('Add new category', null, null, false),
				'icon' => 'process-icon-new'
			);
		}
	}
	
	public function initContent()
	{
		if ($this->action == 'select_delete')
			$this->context->smarty->assign(array(
				'delete_form' => true,
				'url_delete' => htmlentities($_SERVER['REQUEST_URI']),
				'boxes' => $this->boxes,
			));

		parent::initContent();
	}

	public function setMedia()
	{
		parent::setMedia();
		$this->addJqueryUi('ui.widget');
		$this->addJqueryPlugin('tagify');
	}

	public function renderList()
	{
		if (isset($this->_filter) && trim($this->_filter) == '')
			$this->_filter = $this->original_filter;

		$this->addRowAction('view');
		$this->addRowAction('add');
		$this->addRowAction('edit');
		$this->addRowAction('delete');
		
		$count_categories_without_parent = count(Category::getCategoriesWithoutParent());	
		$categories_tree = $this->_category->getParentsCategories();

		if (empty($categories_tree)
			&& ($this->_category->id != 1 || Tools::isSubmit('id_category'))
			&& (Shop::getContext() == Shop::CONTEXT_SHOP && !Shop::isFeatureActive() && $count_categories_without_parent > 1))
			$categories_tree = array(array('name' => $this->_category->name[$this->context->language->id]));

		$categories_tree = array_reverse($categories_tree);
		$this->tpl_list_vars['categories_tree'] = $categories_tree;
		$this->tpl_list_vars['categories_tree_current_id'] = $this->_category->id;

		if (Tools::isSubmit('submitBulkdelete'.$this->table) || Tools::isSubmit('delete'.$this->table))
		{
			$category = new Category(Tools::getValue('id_category'));
			if ($category->is_root_category)
				$this->tpl_list_vars['need_delete_mode'] = false;
			else
				$this->tpl_list_vars['need_delete_mode'] = true;
			$this->tpl_list_vars['delete_category'] = true;
			$this->tpl_list_vars['REQUEST_URI'] = $_SERVER['REQUEST_URI'];
			$this->tpl_list_vars['POST'] = $_POST;
		}

		return parent::renderList();
	}

	public function getList($id_lang, $order_by = null, $order_way = null, $start = 0, $limit = null, $id_lang_shop = false)
	{
		parent::getList($id_lang, $order_by, $order_way, $start, $limit, Context::getContext()->shop->id);
		// Check each row to see if there are combinations and get the correct action in consequence

		$nb_items = count($this->_list);
		for ($i = 0; $i < $nb_items; $i++)
		{
			$item = &$this->_list[$i];
			$category_tree = Category::getChildren((int)$item['id_category'], $this->context->language->id);
			if (!count($category_tree))
				$this->addRowActionSkipList('view', array($item['id_category']));
		}
	}

	public function renderView()
	{
		$this->initToolbar();
		return $this->renderList();
	}

	public function initToolbar()
	{
		if (empty($this->display))
		{
			$this->toolbar_btn['new'] = array(
				'href' => self::$currentIndex.'&amp;add'.$this->table.'&amp;token='.$this->token,
				'desc' => $this->l('Add New')
			);
			$this->toolbar_btn['import'] = array(
				'href' => $this->context->link->getAdminLink('AdminImport', true).'&import_type=categories',
				'desc' => $this->l('Import')
			);
		}
		// be able to edit the Home category
		if (count(Category::getCategoriesWithoutParent()) == 1 && !Tools::isSubmit('id_category')
			&& ($this->display == 'view' || empty($this->display)))
			$this->toolbar_btn['edit'] = array(
				'href' => self::$currentIndex.'&amp;update'.$this->table.'&amp;id_category='.(int)$this->_category->id.'&amp;token='.$this->token,
				'desc' => $this->l('Edit')
			);
		if (Tools::getValue('id_category') && !Tools::isSubmit('updatecategory'))
		{
			$this->toolbar_btn['edit'] = array(
				'href' => self::$currentIndex.'&amp;update'.$this->table.'&amp;id_category='.(int)Tools::getValue('id_category').'&amp;token='.$this->token,
				'desc' => $this->l('Edit')
			);
		}

		if ($this->display == 'view')
			$this->toolbar_btn['new'] = array(
				'href' => self::$currentIndex.'&amp;add'.$this->table.'&amp;id_parent='.(int)Tools::getValue('id_category').'&amp;token='.$this->token,
				'desc' => $this->l('Add New')
			);
		parent::initToolbar();
		if ($this->_category->id == Category::getTopCategory()->id && isset($this->toolbar_btn['new']))
			unset($this->toolbar_btn['new']);
		// after adding a category
		if (empty($this->display))
		{
			$id_category = (Tools::isSubmit('id_category')) ? '&amp;id_parent='.(int)Tools::getValue('id_category') : '';
			$this->toolbar_btn['new'] = array(
				'href' => self::$currentIndex.'&amp;add'.$this->table.'&amp;token='.$this->token.$id_category,
				'desc' => $this->l('Add New')
			);

			if (Tools::isSubmit('id_category'))
			{
				$back = Tools::safeOutput(Tools::getValue('back', ''));
				if (empty($back))
					$back = self::$currentIndex.'&token='.$this->token;
				$this->toolbar_btn['back'] = array(
					'href' => $back,
					'desc' => $this->l('Back to list')
				);
			}
		}
	}

	public function initProcess()
	{
		if (Tools::isSubmit('add'.$this->table.'root'))
		{
			if ($this->tabAccess['add'])
			{
				$this->action = 'add'.$this->table.'root';
				$obj = $this->loadObject(true);
				if (Validate::isLoadedObject($obj))
					$this->display = 'edit';
				else
					$this->display = 'add';
			}
			else
				$this->errors[] = Tools::displayError('You do not have permission to edit this.');
		}

		parent::initProcess();

		if ($this->action == 'delete' || $this->action == 'bulkdelete')
			if (Tools::getIsset('cancel'))
				Tools::redirectAdmin(self::$currentIndex.'&token='.Tools::getAdminTokenLite('AdminCategories'));
			elseif (Tools::getValue('deleteMode') == 'link' || Tools::getValue('deleteMode') == 'linkanddisable' || Tools::getValue('deleteMode') == 'delete')
				$this->delete_mode = Tools::getValue('deleteMode');
			else
				$this->action = 'select_delete';
	}

	public function renderKpis()
	{
		$time = time();
		$kpis = array();

		/* The data generation is located in AdminStatsControllerCore */

		$helper = new HelperKpi();
		$helper->id = 'box-disabled-categories';
		$helper->icon = 'icon-off';
		$helper->color = 'color1';
		$helper->title = $this->l('Disabled Categories', null, null, false);
		if (ConfigurationKPI::get('DISABLED_CATEGORIES') !== false)
			$helper->value = ConfigurationKPI::get('DISABLED_CATEGORIES');
		if (ConfigurationKPI::get('DISABLED_CATEGORIES_EXPIRE') < $time)
			$helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=disabled_categories';
		$kpis[] = $helper->generate();
		
		$helper = new HelperKpi();
		$helper->id = 'box-empty-categories';
		$helper->icon = 'icon-bookmark-empty';
		$helper->color = 'color2';
		$helper->href = $this->context->link->getAdminLink('AdminTracking');
		$helper->title = $this->l('Empty Categories', null, null, false);
		if (ConfigurationKPI::get('EMPTY_CATEGORIES') !== false)
			$helper->value = ConfigurationKPI::get('EMPTY_CATEGORIES');
		if (ConfigurationKPI::get('EMPTY_CATEGORIES_EXPIRE') < $time)
			$helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=empty_categories';
		$kpis[] = $helper->generate();
		
		$helper = new HelperKpi();
		$helper->id = 'box-top-category';
		$helper->icon = 'icon-money';
		$helper->color = 'color3';
		$helper->title = $this->l('Top Category', null, null, false);
		$helper->subtitle = $this->l('30 days', null, null, false);
		if (ConfigurationKPI::get('TOP_CATEGORY', $this->context->employee->id_lang) !== false)
			$helper->value = ConfigurationKPI::get('TOP_CATEGORY', $this->context->employee->id_lang);
		if (ConfigurationKPI::get('TOP_CATEGORY_EXPIRE', $this->context->employee->id_lang) < $time)
			$helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=top_category';
		$kpis[] = $helper->generate();
		
		$helper = new HelperKpi();
		$helper->id = 'box-products-per-category';
		$helper->icon = 'icon-search';
		$helper->color = 'color4';
		$helper->title = $this->l('Average number of products per category', null, null, false);
		if (ConfigurationKPI::get('PRODUCTS_PER_CATEGORY') !== false)
			$helper->value = ConfigurationKPI::get('PRODUCTS_PER_CATEGORY');
		if (ConfigurationKPI::get('PRODUCTS_PER_CATEGORY_EXPIRE') < $time)
			$helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=products_per_category';
		$kpis[] = $helper->generate();

		$helper = new HelperKpiRow();
		$helper->kpis = $kpis;
		return $helper->generate();
	}

	public function renderForm()
	{
		$this->initToolbar();
		$obj = $this->loadObject(true);
		$id_shop = Context::getContext()->shop->id;
		$selected_categories = array((isset($obj->id_parent) && $obj->isParentCategoryAvailable($id_shop))? (int)$obj->id_parent : (int)Tools::getValue('id_parent', Category::getRootCategory()->id));
		$unidentified = new Group(Configuration::get('PS_UNIDENTIFIED_GROUP'));
		$guest = new Group(Configuration::get('PS_GUEST_GROUP'));
		$default = new Group(Configuration::get('PS_CUSTOMER_GROUP'));

		$unidentified_group_information = sprintf($this->l('%s - All people without a valid customer account.'), '<b>'.$unidentified->name[$this->context->language->id].'</b>');
		$guest_group_information = sprintf($this->l('%s - Customer who placed an order with the guest checkout.'), '<b>'.$guest->name[$this->context->language->id].'</b>');
		$default_group_information = sprintf($this->l('%s - All people who have created an account on this site.'), '<b>'.$default->name[$this->context->language->id].'</b>');

		if (!($obj = $this->loadObject(true)))
			return;

		$image = _PS_CAT_IMG_DIR_.$obj->id.'.jpg';
		$image_url = ImageManager::thumbnail($image, $this->table.'_'.(int)$obj->id.'.'.$this->imageType, 350,
			$this->imageType, true, true);
		$image_size = file_exists($image) ? filesize($image) / 1000 : false;

		$this->fields_form = array(
			'tinymce' => true,
			'legend' => array(
				'title' => $this->l('Category'),
				'icon' => 'icon-tags'
			),
			'input' => array(
				array(
					'type' => 'text',
					'label' => $this->l('Name'),
					'name' => 'name',
					'lang' => true,
					'required' => true,
					'class' => 'copy2friendlyUrl',
					'hint' => $this->l('Invalid characters:').' <>;=#{}',
				),
				array(
					'type' => 'switch',
					'label' => $this->l('Displayed'),
					'name' => 'active',
					'required' => false,
					'is_bool' => true,
					'values' => array(
						array(
							'id' => 'active_on',
							'value' => 1,
							'label' => $this->l('Enabled')
						),
						array(
							'id' => 'active_off',
							'value' => 0,
							'label' => $this->l('Disabled')
						)
					)
				),
				array(
					'type'  => 'categories',
					'label' => $this->l('Parent category'),
					'name'  => 'id_parent',
					'tree'  => array(
						'id'                  => 'categories-tree',
						'selected_categories' => $selected_categories,
						'disabled_categories' => !Tools::isSubmit('add'.$this->table) ? array($this->_category->id) : null
					)
				),
				array(
					'type' => 'textarea',
					'label' => $this->l('Description'),
					'name' => 'description',
					'autoload_rte' => true,
					'lang' => true,
					'hint' => $this->l('Invalid characters:').' <>;=#{}'
				),
				array(
					'type' => 'file',
					'label' => $this->l('Image'),
					'name' => 'image',
					'display_image' => true,
					'image' => $image_url ? $image_url : false,
					'size' => $image_size,
					'delete_url' => self::$currentIndex.'&'.$this->identifier.'='.$this->_category->id.'&token='.$this->token.'&deleteImage=1',
					'hint' => $this->l('Upload a category logo from your computer.'),
				),
				array(
					'type' => 'text',
					'label' => $this->l('Meta title'),
					'name' => 'meta_title',
					'lang' => true,
					'hint' => $this->l('Forbidden characters:').' <>;=#{}'
				),
				array(
					'type' => 'text',
					'label' => $this->l('Meta description'),
					'name' => 'meta_description',
					'lang' => true,
					'hint' => $this->l('Forbidden characters:').' <>;=#{}'
				),
				array(
					'type' => 'tags',
					'label' => $this->l('Meta keywords'),
					'name' => 'meta_keywords',
					'lang' => true,
					'hint' => $this->l('To add "tags," click in the field, write something, and then press "Enter."').'&nbsp;'.$this->l('Forbidden characters:').' <>;=#{}'
				),
				array(
					'type' => 'text',
					'label' => $this->l('Friendly URL'),
					'name' => 'link_rewrite',
					'lang' => true,
					'required' => true,
					'hint' => $this->l('Only letters, numbers, underscore (_) and the minus (-) character are allowed.')
				),
				array(
					'type' => 'group',
					'label' => $this->l('Group access'),
					'name' => 'groupBox',
					'values' => Group::getGroups(Context::getContext()->language->id),
					'info_introduction' => $this->l('You now have three default customer groups.'),
					'unidentified' => $unidentified_group_information,
					'guest' => $guest_group_information,
					'customer' => $default_group_information,
					'hint' => $this->l('Mark all of the customer groups which you would like to have access to this category.')
				)
			),
			'submit' => array(
				'title' => $this->l('Save'),
				'name' => 'submitAdd'.$this->table.'AndBackToParent'
			)
		);

		$this->tpl_form_vars['shared_category'] = Validate::isLoadedObject($obj) && $obj->hasMultishopEntries(); 
		$this->tpl_form_vars['PS_ALLOW_ACCENTED_CHARS_URL'] = (int)Configuration::get('PS_ALLOW_ACCENTED_CHARS_URL');
		$this->tpl_form_vars['displayBackOfficeCategory'] = Hook::exec('displayBackOfficeCategory');
		
		// Display this field only if multistore option is enabled
		if (Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE') && Tools::isSubmit('add'.$this->table.'root'))
		{
			$this->fields_form['input'][] = array(
				'type' => 'switch',
				'label' => $this->l('Root Category'),
				'name' => 'is_root_category',
				'required' => false,
				'is_bool' => true,
				'values' => array(
					array(
						'id' => 'is_root_on',
						'value' => 1,
						'label' => $this->l('Yes')
					),
					array(
						'id' => 'is_root_off',
						'value' => 0,
						'label' => $this->l('No')
					)
				)
			);
			unset($this->fields_form['input'][2],$this->fields_form['input'][3]);
		}
		// Display this field only if multistore option is enabled AND there are several stores configured
		if (Shop::isFeatureActive())
			$this->fields_form['input'][] = array(
				'type' => 'shop',
				'label' => $this->l('Shop association'),
				'name' => 'checkBoxShopAsso',
			);

		// remove category tree and radio button "is_root_category" if this category has the root category as parent category to avoid any conflict
		if ($this->_category->id_parent == Category::getTopCategory()->id && Tools::isSubmit('updatecategory'))
			foreach ($this->fields_form['input'] as $k => $input)
				if (in_array($input['name'], array('id_parent', 'is_root_category')))
					unset($this->fields_form['input'][$k]);

		if (!($obj = $this->loadObject(true)))
			return;

		$image = ImageManager::thumbnail(_PS_CAT_IMG_DIR_.'/'.$obj->id.'.jpg', $this->table.'_'.(int)$obj->id.'.'.$this->imageType, 350, $this->imageType, true);

		$this->fields_value = array(
			'image' => $image ? $image : false,
			'size' => $image ? filesize(_PS_CAT_IMG_DIR_.'/'.$obj->id.'.jpg') / 1000 : false
		);

		// Added values of object Group
		$category_groups_ids = $obj->getGroups();

		$groups = Group::getGroups($this->context->language->id);
		// if empty $carrier_groups_ids : object creation : we set the default groups
		if (empty($category_groups_ids))
		{
			$preselected = array(Configuration::get('PS_UNIDENTIFIED_GROUP'), Configuration::get('PS_GUEST_GROUP'), Configuration::get('PS_CUSTOMER_GROUP'));
			$category_groups_ids = array_merge($category_groups_ids, $preselected);
		}
		foreach ($groups as $group)
			$this->fields_value['groupBox_'.$group['id_group']] = Tools::getValue('groupBox_'.$group['id_group'], (in_array($group['id_group'], $category_groups_ids)));

		$this->fields_value['is_root_category'] = (bool)Tools::isSubmit('add'.$this->table.'root');

		return parent::renderForm();
	}
	
	public function postProcess()
	{
		if (!in_array($this->display, array('edit', 'add')))
			$this->multishop_context_group = false;
		if (Tools::isSubmit('forcedeleteImage') || (isset($_FILES['image']) && $_FILES['image']['size'] > 0) || Tools::getValue('deleteImage'))
		{
			$this->processForceDeleteImage();
			if (Tools::isSubmit('forcedeleteImage'))
				Tools::redirectAdmin(self::$currentIndex.'&token='.Tools::getAdminTokenLite('AdminCategories').'&conf=7');
		}
		
		return parent::postProcess();
	}
	
	public function processForceDeleteImage()
	{
		$category = $this->loadObject(true);
		if (Validate::isLoadedObject($category))
			$category->deleteImage(true);
	}
	
	public function processAdd()
	{
		$id_category = (int)Tools::getValue('id_category');
		$id_parent = (int)Tools::getValue('id_parent');

		// if true, we are in a root category creation
		if (!$id_parent)
		{
			$_POST['is_root_category'] = $_POST['level_depth'] = 1;
		   $_POST['id_parent'] = $id_parent = (int)Configuration::get('PS_ROOT_CATEGORY');
		}

		if ($id_category)
		{
			if ($id_category != $id_parent)
			{
				if (!Category::checkBeforeMove($id_category, $id_parent))
					$this->errors[] = Tools::displayError('The category cannot be moved here.');
			}
			else
				$this->errors[] = Tools::displayError('The category cannot be a parent of itself.');
		}
		$object = parent::processAdd();

		//if we create a you root category you have to associate to a shop before to add sub categories in. So we redirect to AdminCategories listing
		if ($object && Tools::getValue('is_root_category'))
			Tools::redirectAdmin(self::$currentIndex.'&token='.Tools::getAdminTokenLite('AdminCategories').'&conf=3');
		return $object;
	}
	
	protected function setDeleteMode()
	{
		if ($this->delete_mode == 'link' || $this->delete_mode == 'linkanddisable')
		{
			$this->remove_products = false;
			if ($this->delete_mode == 'linkanddisable')
				$this->disable_products = true;
		}
		elseif ($this->delete_mode != 'delete')
			$this->errors[] = Tools::displayError('Unknown delete mode:'.' '.$this->deleted);
		
	}
	
	protected function processBulkDelete()
	{
		if ($this->tabAccess['delete'] === '1')
		{
			$cats_ids = array();
			foreach (Tools::getValue($this->table.'Box') as $id_category)
			{
				$category = new Category((int)$id_category);
				if (!$category->isRootCategoryForAShop())
					$cats_ids[$category->id] = $category->id_parent;
			}
	
			if (parent::processBulkDelete())
			{
					$this->setDeleteMode();
					foreach ($cats_ids as $id => $id_parent)
						$this->processFatherlessProducts((int)$id_parent);
					return true;
			}
			else
				return false;
		}
		else
			$this->errors[] = Tools::displayError('You do not have permission to delete this.');
	}
	
	public function processDelete()
	{
		if ($this->tabAccess['delete'] === '1')
		{
			$category = $this->loadObject();
			if ($category->isRootCategoryForAShop())
				$this->errors[] = Tools::displayError('You cannot remove this category because one of your shops uses it as a root category.');
			elseif (parent::processDelete())
			{
				$this->setDeleteMode();
				$this->processFatherlessProducts((int)$category->id_parent);
				return true;
			}
		}
		else
			$this->errors[] = Tools::displayError('You do not have permission to delete this.');
		return false;
	}
	
	public function processFatherlessProducts($id_parent)
	{
		/* Delete or link products which were not in others categories */
		$fatherless_products = Db::getInstance()->executeS('
			SELECT p.`id_product` FROM `'._DB_PREFIX_.'product` p
			'.Shop::addSqlAssociation('product', 'p').'
			WHERE p.`id_product` NOT IN (SELECT DISTINCT(cp.`id_product`) FROM `'._DB_PREFIX_.'category_product` cp)');

		foreach ($fatherless_products as $id_poor_product)
		{
			$poor_product = new Product((int)$id_poor_product['id_product']);
			if (Validate::isLoadedObject($poor_product))
			{
				if ($this->remove_products || $id_parent == 0)
					$poor_product->delete();
				else
				{
					if ($this->disable_products)
						$poor_product->active = 0;
					$poor_product->id_category_default = (int)$id_parent;
					$poor_product->addToCategories((int)$id_parent);
					$poor_product->save();
				}
			}
		}
	}

	public function processPosition()
	{
		if ($this->tabAccess['edit'] !== '1')
			$this->errors[] = Tools::displayError('You do not have permission to edit this.');
		else if (!Validate::isLoadedObject($object = new Category((int)Tools::getValue($this->identifier, Tools::getValue('id_category_to_move', 1)))))
			$this->errors[] = Tools::displayError('An error occurred while updating the status for an object.').' <b>'.
				$this->table.'</b> '.Tools::displayError('(cannot load object)');
		if (!$object->updatePosition((int)Tools::getValue('way'), (int)Tools::getValue('position')))
			$this->errors[] = Tools::displayError('Failed to update the position.');
		else
		{
			$object->regenerateEntireNtree();
			Tools::redirectAdmin(self::$currentIndex.'&'.$this->table.'Orderby=position&'.$this->table.'Orderway=asc&conf=5'.(($id_category = (int)Tools::getValue($this->identifier, Tools::getValue('id_category_parent', 1))) ? ('&'.$this->identifier.'='.$id_category) : '').'&token='.Tools::getAdminTokenLite('AdminCategories'));
		}
	}

	protected function postImage($id)
	{
		$ret = parent::postImage($id);
		if (($id_category = (int)Tools::getValue('id_category')) &&
			isset($_FILES) && count($_FILES) && $_FILES['image']['name'] != null &&
			file_exists(_PS_CAT_IMG_DIR_.$id_category.'.jpg'))
		{
			$images_types = ImageType::getImagesTypes('categories');
			foreach ($images_types as $k => $image_type)
			{
				ImageManager::resize(
					_PS_CAT_IMG_DIR_.$id_category.'.jpg',
					_PS_CAT_IMG_DIR_.$id_category.'-'.stripslashes($image_type['name']).'.jpg',
					(int)$image_type['width'], (int)$image_type['height']
				);
			}
		}

		return $ret;
	}

	public static function getDescriptionClean($description)
	{
		return Tools::getDescriptionClean($description);
	}

	public function ajaxProcessUpdatePositions()
	{
		$id_category_to_move = (int)(Tools::getValue('id_category_to_move'));
		$id_category_parent = (int)(Tools::getValue('id_category_parent'));
		$way = (int)(Tools::getValue('way'));
		$positions = Tools::getValue('category');
		if (is_array($positions))
			foreach ($positions as $key => $value)
			{
				$pos = explode('_', $value);
				if ((isset($pos[1]) && isset($pos[2])) && ($pos[1] == $id_category_parent && $pos[2] == $id_category_to_move))
				{
					$position = $key + 1;
					break;
				}
			}

		$category = new Category($id_category_to_move);
		if (Validate::isLoadedObject($category))
		{
			if (isset($position) && $category->updatePosition($way, $position))
			{
				Hook::exec('actionCategoryUpdate');
				die(true);
			}
			else
				die('{"hasError" : true, errors : "Can not update categories position"}');
		}
		else
			die('{"hasError" : true, "errors" : "This category can not be loaded"}');
	}
}