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components/com_attachments/models/attachment.php

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+<?php
+/**
+ * Attachment model definition
+ *
+ * @package Attachments
+ * @subpackage Attachments_Component
+ *
+ * @copyright Copyright (C) 2007-2018 Jonathan M. Cameron, All Rights Reserved
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GNU/GPL
+ * @link http://joomlacode.org/gf/project/attachments/frs/
+ * @author Jonathan M. Cameron
+ */
+
+defined('_JEXEC') or die('Restricted access');
+
+/** Define the legacy classes, if necessary */
+require_once(JPATH_SITE.'/components/com_attachments/legacy/model.php');
+
+
+/**
+ * Attachment Model
+ *
+ * @package Attachments
+ */
+class AttachmentsModelAttachment extends JModelLegacy
+{
+
+	/**
+	 * Attachment ID
+	 */
+	var $_id = null;
+
+
+	/**
+	 * Attachment object/data
+	 *
+	 * @var object
+	 */
+	var $_attachment = null;
+
+
+	/**
+	 * Constructor, build object and determines its ID
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		// Get the cid array from the request
+		$cid = JRequest::getVar('cid', false, 'DEFAULT', 'array');
+
+		if ($cid) {
+			// Accept only the first id from the array
+			$id = $cid[0];
+			}
+		else {
+			$id = JRequest::getInt('id',0);
+			}
+
+		$this->setId($id);
+	}
+
+
+	/**
+	 * Reset the model ID and data
+	 */
+	public function setId($id=0)
+	{
+		$this->_id = $id;
+		$this->_attachment = null;
+	}
+
+
+	/**
+	 * Load the attachment data
+	 *
+	 * @return true if loaded successfully
+	 */
+	private function _loadAttachment()
+	{
+		if ($this->_id == 0) {
+			return false;
+			}
+
+		if ( empty($this->_attachment) ) {
+
+			$user	= JFactory::getUser();
+			$user_levels = $user->getAuthorisedViewLevels();
+
+			// If the user is not logged in, add extra view levels (if configured)
+			if ( $user->get('username') == '' ) {
+
+				// Get the component parameters
+				jimport('joomla.application.component.helper');
+				$params = JComponentHelper::getParams('com_attachments');
+
+				// Add the specified access levels
+				$guest_levels = $params->get('show_guest_access_levels', Array('1'));
+				if (is_array($guest_levels)) {
+					foreach ($guest_levels as $glevel) {
+						$user_levels[] = $glevel;
+						}
+					}
+				else {
+					$user_levels[] = $glevel;
+					}
+				}
+			$user_levels = implode(',', array_unique($user_levels));
+
+			// Load the attachment data and make sure this user has access
+			$db		= $this->getDbo();
+			$query	= $db->getQuery(true);
+			$query->select('a.*, a.id as id');
+			$query->from('#__attachments as a');
+			$query->where('a.id = '.(int)$this->_id);
+			if ( !$user->authorise('core.admin') ) {
+				$query->where('a.access in ('.$user_levels.')');
+				}
+			$db->setQuery($query, 0, 1);
+			$this->_attachment = $db->loadObject();
+			if ( empty($this->_attachment) ) {
+				return false;
+				}
+
+			// Retrieve the information about the parent
+			$parent_type = $this->_attachment->parent_type;
+			$parent_entity = $this->_attachment->parent_entity;
+			JPluginHelper::importPlugin('attachments');
+			$apm = getAttachmentsPluginManager();
+			if ( !$apm->attachmentsPluginInstalled($parent_type) ) {
+				$this->_attachment->parent_type = false;
+				return false;
+				}
+			$parent = $apm->getAttachmentsPlugin($parent_type);
+
+			// Set up the parent info
+			$parent_id = $this->_attachment->parent_id;
+			$this->_attachment->parent_title = $parent->getTitle($parent_id, $parent_entity);
+			$this->_attachment->parent_published =
+				$parent->isParentPublished($parent_id, $parent_entity);
+			}
+
+		return true;
+	}
+
+
+	/**
+	 * Create a new Attachment object
+	 */
+	private function _initAttachment()
+	{
+		echo "_initData not implemented yet <br />";
+		return null;
+	}
+
+
+	/**
+	 * Get the data
+	 *
+	 * @return object
+	 */
+	public function getAttachment()
+	{
+		if ( !$this->_loadAttachment() ) {
+			// If the load fails, create a new one
+			$this->_initAttachment();
+			}
+
+		return $this->_attachment;
+	}
+
+
+	/**
+	 * Save the attachment
+	 *
+	 * @param object $data mixed object or associative array of data to save
+	 *
+	 * @return Boolean true on success
+	 */
+	public function save($data)
+	{
+		// Get the table
+		$table = $this->getTable('Attachments');
+
+		// Save the data
+		if ( !$table->save($data) ) {
+			// An error occured, save the model error message
+			$this->setError($table->getError());
+			return false;
+			}
+
+		return true;
+	}
+
+
+	/**
+	 * Increment the download cout
+	 *
+	 * @param int $attachment_id the attachment ID
+	 */
+	public function incrementDownloadCount()
+	{
+		// Update the download count
+		$db = JFactory::getDBO();
+		$query = $db->getQuery(true);
+		$query->update('#__attachments')->set('download_count = (download_count + 1)');
+		$query->where('id = ' .(int)$this->_id);
+		$db->setQuery($query);
+		if ( !$db->query() ) {
+			$errmsg = $db->stderr() . ' (ERR 49)';
+			JError::raiseError(500, $errmsg);
+			}
+	}
+
+}