/app/code/core/Enterprise/CatalogEvent/controllers/Adminhtml/Catalog/EventController.php

<?php
/**
 * Magento Enterprise Edition
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Magento Enterprise Edition License
 * that is bundled with this package in the file LICENSE_EE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://www.magentocommerce.com/license/enterprise-edition
 * 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@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Enterprise
 * @package     Enterprise_CatalogEvent
 * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://www.magentocommerce.com/license/enterprise-edition
 */

/**
 * Catalog Events Adminhtml controller
 *
 * @category   Enterprise
 * @package    Enterprise_CatalogEvent
 */

class Enterprise_CatalogEvent_Adminhtml_Catalog_EventController extends Mage_Adminhtml_Controller_Action
{
    /**
     * Check is enabled module in config
     *
     * @return Enterprise_CatalogEvent_Adminhtml_Catalog_EventController
     */
    public function preDispatch()
    {
        parent::preDispatch();
        if (!Mage::helper('enterprise_catalogevent')->isEnabled()) {
            if ($this->getRequest()->getActionName() != 'noroute') {
                $this->_forward('noroute');
            }
        }
        return $this;
    }

    /**
     * Init action breadcrumbs and active menu
     *
     * @return Enterprise_CatalogEvent_IndexController
     */
    public function _initAction()
    {
        $this->loadLayout()
            ->_addBreadcrumb(Mage::helper('catalog')->__('Catalog'), Mage::helper('catalog')->__('Catalog'))
            ->_addBreadcrumb(Mage::helper('enterprise_catalogevent')->__('Events'), Mage::helper('enterprise_catalogevent')->__('Events'))
            ->_setActiveMenu('catalog/enterprise_catelogevent');
        return $this;
    }

    /**
     * Events list action
     *
     * @return void
     */
    public function indexAction()
    {
        $this->_title($this->__('Catalog'))
             ->_title($this->__('Categories'))
             ->_title($this->__('Catalog Events'));

        $this->_initAction();
        $this->renderLayout();
    }

    /**
     * New event action
     *
     * @return void
     */
    public function newAction()
    {
        $this->_forward('edit');
    }

    /**
     * Edit event action
     */
    public function editAction()
    {
        $this->_title($this->__('Catalog'))
             ->_title($this->__('Categories'))
             ->_title($this->__('Catalog Events'));

        $event = Mage::getModel('enterprise_catalogevent/event')
            ->setStoreId($this->getRequest()->getParam('store', 0));
        if ($eventId = $this->getRequest()->getParam('id', false)) {
            $event->load($eventId);
        } else {
            $event->setCategoryId($this->getRequest()->getParam('category_id'));
        }

        $this->_title($event->getId() ? sprintf("#%s", $event->getId()) : $this->__('New Event'));

        $sessionData = Mage::getSingleton('adminhtml/session')->getEventData(true);
        if (!empty($sessionData)) {
            $event->addData($sessionData);
        }

        Mage::register('enterprise_catalogevent_event', $event);

        $this->_initAction();
        $this->getLayout()->getBlock('head')->setCanLoadExtJs(true);
        if (($switchBlock = $this->getLayout()->getBlock('store_switcher'))) {
            if (!$event->getId() || Mage::app()->isSingleStoreMode()) {
                $switchBlock->getParentBlock()->unsetChild('store_switcher');
            } else {
                $switchBlock->setDefaultStoreName(Mage::helper('enterprise_catalogevent')->__('Default Values'))
                    ->setSwitchUrl($this->getUrl('*/*/*', array('_current' => true, 'store' => null)));
            }
        }
        $this->renderLayout();

    }

    /**
     * Save action
     *
     * @return void
     */
    public function saveAction()
    {
        $event = Mage::getModel('enterprise_catalogevent/event')
            ->setStoreId($this->getRequest()->getParam('store', 0));
        /* @var $event Enterprise_CatalogEvent_Model_Event */
        if ($eventId = $this->getRequest()->getParam('id', false)) {
            $event->load($eventId);
        } else {
            $event->setCategoryId($this->getRequest()->getParam('category_id'));
        }

        $postData = $this->_filterPostData($this->getRequest()->getPost());

        if (!isset($postData['catalogevent'])) {
            $this->_getSession()->addError(
                Mage::helper('enterprise_catalogevent')->__('An error occurred while saving this event.')
            );
            $this->_redirect('*/*/edit', array('_current' => true));
            return;
        }

        $data = new Varien_Object($postData['catalogevent']);

        $event->setDisplayState($data->getDisplayState())
            ->setStoreDateStart($data->getDateStart())
            ->setStoreDateEnd($data->getDateEnd())
            ->setSortOrder($data->getSortOrder());

        $isUploaded = true;
        try {
            $uploader = new Mage_Core_Model_File_Uploader('image');
            $uploader->setAllowedExtensions(array('jpg','jpeg','gif','png'));
            $uploader->setAllowRenameFiles(true);
            $uploader->setAllowCreateFolders(true);
            $uploader->setFilesDispersion(false);
        } catch (Exception $e) {
            $isUploaded = false;
        }

        $validateResult = $event->validate();
        if ($validateResult !== true) {
            foreach ($validateResult as $errorMessage) {
                $this->_getSession()->addError($errorMessage);
            }
            $this->_getSession()->setEventData($event->getData());
            $this->_redirect('*/*/edit', array('_current' => true));
            return;
        }

        try {
            if ($data->getData('image/is_default')) {
                $event->setImage(null);
            } elseif ($data->getData('image/delete')) {
                $event->setImage('');
            } elseif ($isUploaded) {
                try {
                    $event->setImage($uploader);
                } catch (Exception $e) {
                    Mage::throwException(
                        Mage::helper('enterprise_catalogevent')->__('Image was not uploaded.')
                    );
                }
            }
            $event->save();

            $this->_getSession()->addSuccess(
                Mage::helper('enterprise_catalogevent')->__('Event has been saved.')
            );
            if ($this->getRequest()->getParam('_continue')) {
                $this->_redirect('*/*/edit', array('_current' => true, 'id' => $event->getId()));
            } else {
                $this->_redirect('*/*/');
            }
        } catch (Exception $e) {
            $this->_getSession()->addError($e->getMessage());
            $this->_getSession()->setEventData($event->getData());
            $this->_redirect('*/*/edit', array('_current' => true));
        }


    }

    /**
     * Delete action
     *
     * @return void
     */
    public function deleteAction()
    {
        $event = Mage::getModel('enterprise_catalogevent/event');
        $event->load($this->getRequest()->getParam('id', false));
        if ($event->getId()) {
            try {
                $event->delete();
                $this->_getSession()->addSuccess(
                    Mage::helper('enterprise_catalogevent')->__('Event has been deleted.')
                );
                if ($this->getRequest()->getParam('category')) {
                    $this->_redirect('*/catalog_category/edit', array('id' => $event->getCategoryId(), 'clear' => 1));
                } else {
                    $this->_redirect('*/*/');
                }
            } catch (Exception $e) {
                $this->_getSession()->addError($e->getMessage());
                $this->_redirect('*/*/edit', array('_current' => true));
            }
        }
    }

    /**
     * Ajax categories tree loader action
     *
     */
    public function categoriesJsonAction()
    {
        $id = $this->getRequest()->getParam('id', null);
        $this->getResponse()->setBody(
            $this->getLayout()->createBlock('enterprise_catalogevent/adminhtml_event_edit_category')
                ->getTreeArray($id, true, 1)
        );
    }

    /**
     * Acl check for admin
     *
     * @return boolean
     */
    protected function _isAllowed()
    {
        return Mage::getSingleton('admin/session')->isAllowed('catalog/events');
    }

    /**
     * Filtering posted data. Converting localized data if needed
     *
     * @param array
     * @return array
     */
    protected function _filterPostData($data)
    {
        if(isset($data['catalogevent'])) {
            $_data = $data['catalogevent'];
            $_data = $this->_filterDateTime($_data, array('date_start', 'date_end'));
            $data['catalogevent'] = $_data;
        }
        return $data;
    }

}