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<?php
/**
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die;
jimport('joomla.application.component.modellist');
/**
* This models supports retrieving lists of articles.
*
* @package Joomla.Site
* @subpackage com_content
* @since 1.6
*/
class ContentModelArticles extends JModelList
{
/**
* Constructor.
*
* @param array An optional associative array of configuration settings.
* @see JController
* @since 1.6
*/
public function __construct($config = array())
{
if (empty($config['filter_fields'])) {
$config['filter_fields'] = array(
'id', 'a.id',
'title', 'a.title',
'alias', 'a.alias',
'checked_out', 'a.checked_out',
'checked_out_time', 'a.checked_out_time',
'catid', 'a.catid', 'category_title',
'state', 'a.state',
'access', 'a.access', 'access_level',
'created', 'a.created',
'created_by', 'a.created_by',
'ordering', 'a.ordering',
'featured', 'a.featured',
'language', 'a.language',
'hits', 'a.hits',
'publish_up', 'a.publish_up',
'publish_down', 'a.publish_down',
'images', 'a.images',
'urls', 'a.urls',
);
}
parent::__construct($config);
}
/**
* Method to auto-populate the model state.
*
* Note. Calling getState in this method will result in recursion.
*
* @return void
* @since 1.6
*/
protected function populateState($ordering = 'ordering', $direction = 'ASC')
{
$app = JFactory::getApplication();
// List state information
//$value = $app->getUserStateFromRequest('global.list.limit', 'limit', $app->getCfg('list_limit'));
$value = JRequest::getUInt('limit', $app->getCfg('list_limit', 0));
$this->setState('list.limit', $value);
//$value = $app->getUserStateFromRequest($this->context.'.limitstart', 'limitstart', 0);
$value = JRequest::getUInt('limitstart', 0);
$this->setState('list.start', $value);
$orderCol = JRequest::getCmd('filter_order', 'a.ordering');
if (!in_array($orderCol, $this->filter_fields)) {
$orderCol = 'a.ordering';
}
$this->setState('list.ordering', $orderCol);
$listOrder = JRequest::getCmd('filter_order_Dir', 'ASC');
if (!in_array(strtoupper($listOrder), array('ASC', 'DESC', ''))) {
$listOrder = 'ASC';
}
$this->setState('list.direction', $listOrder);
$params = $app->getParams();
$this->setState('params', $params);
$user = JFactory::getUser();
if ((!$user->authorise('core.edit.state', 'com_content')) && (!$user->authorise('core.edit', 'com_content'))){
// filter on published for those who do not have edit or edit.state rights.
$this->setState('filter.published', 1);
}
$this->setState('filter.language', $app->getLanguageFilter());
// process show_noauth parameter
if (!$params->get('show_noauth')) {
$this->setState('filter.access', true);
}
else {
$this->setState('filter.access', false);
}
$this->setState('layout', JRequest::getCmd('layout'));
}
/**
* Method to get a store id based on model configuration state.
*
* This is necessary because the model is used by the component and
* different modules that might need different sets of data or different
* ordering requirements.
*
* @param string $id A prefix for the store id.
*
* @return string A store id.
* @since 1.6
*/
protected function getStoreId($id = '')
{
// Compile the store id.
$id .= ':'.$this->getState('filter.published');
$id .= ':'.$this->getState('filter.access');
$id .= ':'.$this->getState('filter.featured');
$id .= ':'.$this->getState('filter.article_id');
$id .= ':'.$this->getState('filter.article_id.include');
$id .= ':'.$this->getState('filter.category_id');
$id .= ':'.$this->getState('filter.category_id.include');
$id .= ':'.$this->getState('filter.author_id');
$id .= ':'.$this->getState('filter.author_id.include');
$id .= ':'.$this->getState('filter.author_alias');
$id .= ':'.$this->getState('filter.author_alias.include');
$id .= ':'.$this->getState('filter.date_filtering');
$id .= ':'.$this->getState('filter.date_field');
$id .= ':'.$this->getState('filter.start_date_range');
$id .= ':'.$this->getState('filter.end_date_range');
$id .= ':'.$this->getState('filter.relative_date');
return parent::getStoreId($id);
}
/**
* Get the master query for retrieving a list of articles subject to the model state.
*
* @return JDatabaseQuery
* @since 1.6
*/
function getListQuery()
{
// Create a new query object.
$db = $this->getDbo();
$query = $db->getQuery(true);
// Select the required fields from the table.
$query->select(
$this->getState(
'list.select',
'a.id, a.title, a.alias, a.title_alias, a.introtext, ' .
'a.checked_out, a.checked_out_time, ' .
'a.catid, a.created, a.created_by, a.created_by_alias, ' .
// use created if modified is 0
'CASE WHEN a.modified = 0 THEN a.created ELSE a.modified END as modified, ' .
'a.modified_by, uam.name as modified_by_name,' .
// use created if publish_up is 0
'CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END as publish_up,' .
'a.publish_down, a.images, a.urls, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, ' .
'a.hits, a.xreference, a.featured,'.' '.$query->length('a.fulltext').' AS readmore'
)
);
// Process an Archived Article layout
if ($this->getState('filter.published') == 2) {
// If badcats is not null, this means that the article is inside an archived category
// In this case, the state is set to 2 to indicate Archived (even if the article state is Published)
$query->select($this->getState('list.select', 'CASE WHEN badcats.id is null THEN a.state ELSE 2 END AS state'));
}
else {
// Process non-archived layout
// If badcats is not null, this means that the article is inside an unpublished category
// In this case, the state is set to 0 to indicate Unpublished (even if the article state is Published)
$query->select($this->getState('list.select', 'CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state'));
}
$query->from('#__content AS a');
// Join over the frontpage articles.
if ($this->context != 'com_content.featured') {
$query->join('LEFT', '#__content_frontpage AS fp ON fp.content_id = a.id');
}
// Join over the categories.
$query->select('c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias');
$query->join('LEFT', '#__categories AS c ON c.id = a.catid');
// Join over the users for the author and modified_by names.
$query->select("CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author");
$query->select("ua.email AS author_email");
$query->join('LEFT', '#__users AS ua ON ua.id = a.created_by');
$query->join('LEFT', '#__users AS uam ON uam.id = a.modified_by');
// Join on contact table
$subQuery = $db->getQuery(true);
$subQuery->select('contact.user_id, MAX(contact.id) AS id, contact.language');
$subQuery->from('#__contact_details AS contact');
$subQuery->where('contact.published = 1');
$subQuery->group('contact.user_id, contact.language');
$query->select('contact.id as contactid' );
$query->join('LEFT', '(' . $subQuery . ') AS contact ON contact.user_id = a.created_by');
// Join over the categories to get parent category titles
$query->select('parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias');
$query->join('LEFT', '#__categories as parent ON parent.id = c.parent_id');
// Join on voting table
$query->select('ROUND(v.rating_sum / v.rating_count, 0) AS rating, v.rating_count as rating_count');
$query->join('LEFT', '#__content_rating AS v ON a.id = v.content_id');
// Join to check for category published state in parent categories up the tree
$query->select('c.published, CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published');
$subquery = 'SELECT cat.id as id FROM #__categories AS cat JOIN #__categories AS parent ';
$subquery .= 'ON cat.lft BETWEEN parent.lft AND parent.rgt ';
$subquery .= 'WHERE parent.extension = ' . $db->quote('com_content');
if ($this->getState('filter.published') == 2) {
// Find any up-path categories that are archived
// If any up-path categories are archived, include all children in archived layout
$subquery .= ' AND parent.published = 2 GROUP BY cat.id ';
// Set effective state to archived if up-path category is archived
$publishedWhere = 'CASE WHEN badcats.id is null THEN a.state ELSE 2 END';
}
else {
// Find any up-path categories that are not published
// If all categories are published, badcats.id will be null, and we just use the article state
$subquery .= ' AND parent.published != 1 GROUP BY cat.id ';
// Select state to unpublished if up-path category is unpublished
$publishedWhere = 'CASE WHEN badcats.id is null THEN a.state ELSE 0 END';
}
$query->join('LEFT OUTER', '(' . $subquery . ') AS badcats ON badcats.id = c.id');
// Filter by access level.
if ($access = $this->getState('filter.access')) {
$user = JFactory::getUser();
$groups = implode(',', $user->getAuthorisedViewLevels());
$query->where('a.access IN ('.$groups.')');
}
// Filter by published state
$published = $this->getState('filter.published');
if (is_numeric($published)) {
// Use article state if badcats.id is null, otherwise, force 0 for unpublished
$query->where($publishedWhere . ' = ' . (int) $published);
}
elseif (is_array($published)) {
JArrayHelper::toInteger($published);
$published = implode(',', $published);
// Use article state if badcats.id is null, otherwise, force 0 for unpublished
$query->where($publishedWhere . ' IN ('.$published.')');
}
// Filter by featured state
$featured = $this->getState('filter.featured');
switch ($featured)
{
case 'hide':
$query->where('a.featured = 0');
break;
case 'only':
$query->where('a.featured = 1');
break;
case 'show':
default:
// Normally we do not discriminate
// between featured/unfeatured items.
break;
}
// Filter by a single or group of articles.
$articleId = $this->getState('filter.article_id');
if (is_numeric($articleId)) {
$type = $this->getState('filter.article_id.include', true) ? '= ' : '<> ';
$query->where('a.id '.$type.(int) $articleId);
}
elseif (is_array($articleId)) {
JArrayHelper::toInteger($articleId);
$articleId = implode(',', $articleId);
$type = $this->getState('filter.article_id.include', true) ? 'IN' : 'NOT IN';
$query->where('a.id '.$type.' ('.$articleId.')');
}
// Filter by a single or group of categories
$categoryId = $this->getState('filter.category_id');
if (is_numeric($categoryId)) {
$type = $this->getState('filter.category_id.include', true) ? '= ' : '<> ';
// Add subcategory check
$includeSubcategories = $this->getState('filter.subcategories', false);
$categoryEquals = 'a.catid '.$type.(int) $categoryId;
if ($includeSubcategories) {
$levels = (int) $this->getState('filter.max_category_levels', '1');
// Create a subquery for the subcategory list
$subQuery = $db->getQuery(true);
$subQuery->select('sub.id');
$subQuery->from('#__categories as sub');
$subQuery->join('INNER', '#__categories as this ON sub.lft > this.lft AND sub.rgt < this.rgt');
$subQuery->where('this.id = '.(int) $categoryId);
if ($levels >= 0) {
$subQuery->where('sub.level <= this.level + '.$levels);
}
// Add the subquery to the main query
$query->where('('.$categoryEquals.' OR a.catid IN ('.$subQuery->__toString().'))');
}
else {
$query->where($categoryEquals);
}
}
elseif (is_array($categoryId) && (count($categoryId) > 0)) {
JArrayHelper::toInteger($categoryId);
$categoryId = implode(',', $categoryId);
if (!empty($categoryId)) {
$type = $this->getState('filter.category_id.include', true) ? 'IN' : 'NOT IN';
$query->where('a.catid '.$type.' ('.$categoryId.')');
}
}
// Filter by author
$authorId = $this->getState('filter.author_id');
$authorWhere = '';
if (is_numeric($authorId)) {
$type = $this->getState('filter.author_id.include', true) ? '= ' : '<> ';
$authorWhere = 'a.created_by '.$type.(int) $authorId;
}
elseif (is_array($authorId)) {
JArrayHelper::toInteger($authorId);
$authorId = implode(',', $authorId);
if ($authorId) {
$type = $this->getState('filter.author_id.include', true) ? 'IN' : 'NOT IN';
$authorWhere = 'a.created_by '.$type.' ('.$authorId.')';
}
}
// Filter by author alias
$authorAlias = $this->getState('filter.author_alias');
$authorAliasWhere = '';
if (is_string($authorAlias)) {
$type = $this->getState('filter.author_alias.include', true) ? '= ' : '<> ';
$authorAliasWhere = 'a.created_by_alias '.$type.$db->Quote($authorAlias);
}
elseif (is_array($authorAlias)) {
$first = current($authorAlias);
if (!empty($first)) {
JArrayHelper::toString($authorAlias);
foreach ($authorAlias as $key => $alias)
{
$authorAlias[$key] = $db->Quote($alias);
}
$authorAlias = implode(',', $authorAlias);
if ($authorAlias) {
$type = $this->getState('filter.author_alias.include', true) ? 'IN' : 'NOT IN';
$authorAliasWhere = 'a.created_by_alias '.$type.' ('.$authorAlias .
')';
}
}
}
if (!empty($authorWhere) && !empty($authorAliasWhere)) {
$query->where('('.$authorWhere.' OR '.$authorAliasWhere.')');
}
elseif (empty($authorWhere) && empty($authorAliasWhere)) {
// If both are empty we don't want to add to the query
}
else {
// One of these is empty, the other is not so we just add both
$query->where($authorWhere.$authorAliasWhere);
}
// Filter by start and end dates.
$nullDate = $db->Quote($db->getNullDate());
$nowDate = $db->Quote(JFactory::getDate()->toSql());
$query->where('(a.publish_up = '.$nullDate.' OR a.publish_up <= '.$nowDate.')');
$query->where('(a.publish_down = '.$nullDate.' OR a.publish_down >= '.$nowDate.')');
// Filter by Date Range or Relative Date
$dateFiltering = $this->getState('filter.date_filtering', 'off');
$dateField = $this->getState('filter.date_field', 'a.created');
switch ($dateFiltering)
{
case 'range':
$startDateRange = $db->Quote($this->getState('filter.start_date_range', $nullDate));
$endDateRange = $db->Quote($this->getState('filter.end_date_range', $nullDate));
$query->where('('.$dateField.' >= '.$startDateRange.' AND '.$dateField .
' <= '.$endDateRange.')');
break;
case 'relative':
$relativeDate = (int) $this->getState('filter.relative_date', 0);
$query->where($dateField.' >= DATE_SUB('.$nowDate.', INTERVAL ' .
$relativeDate.' DAY)');
break;
case 'off':
default:
break;
}
// process the filter for list views with user-entered filters
$params = $this->getState('params');
if ((is_object($params)) && ($params->get('filter_field') != 'hide') && ($filter = $this->getState('list.filter'))) {
// clean filter variable
$filter = JString::strtolower($filter);
$hitsFilter = intval($filter);
$filter = $db->Quote('%'.$db->escape($filter, true).'%', false);
switch ($params->get('filter_field'))
{
case 'author':
$query->where(
'LOWER( CASE WHEN a.created_by_alias > '.$db->quote(' ').
' THEN a.created_by_alias ELSE ua.name END ) LIKE '.$filter.' '
);
break;
case 'hits':
$query->where('a.hits >= '.$hitsFilter.' ');
break;
case 'title':
default: // default to 'title' if parameter is not valid
$query->where('LOWER( a.title ) LIKE '.$filter);
break;
}
}
// Filter by language
if ($this->getState('filter.language')) {
$query->where('a.language in ('.$db->quote(JFactory::getLanguage()->getTag()).','.$db->quote('*').')');
$query->where('(contact.language in ('.$db->quote(JFactory::getLanguage()->getTag()).','.$db->quote('*').') OR contact.language IS NULL)');
}
// Add the list ordering clause.
$query->order($this->getState('list.ordering', 'a.ordering').' '.$this->getState('list.direction', 'ASC'));
$query->group('a.id, a.title, a.alias, a.title_alias, a.introtext, a.checked_out, a.checked_out_time, a.catid, a.created, a.created_by, a.created_by_alias, a.created, a.modified, a.modified_by, uam.name, a.publish_up, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, a.fulltext, a.state, a.publish_down, badcats.id, c.title, c.path, c.access, c.alias, uam.id, ua.name, ua.email, contact.id, parent.title, parent.id, parent.path, parent.alias, v.rating_sum, v.rating_count, c.published, c.lft, a.ordering, parent.lft, fp.ordering, c.id, a.images, a.urls');
return $query;
}
/**
* Method to get a list of articles.
*
* Overriden to inject convert the attribs field into a JParameter object.
*
* @return mixed An array of objects on success, false on failure.
* @since 1.6
*/
public function getItems()
{
$items = parent::getItems();
$user = JFactory::getUser();
$userId = $user->get('id');
$guest = $user->get('guest');
$groups = $user->getAuthorisedViewLevels();
// Get the global params
$globalParams = JComponentHelper::getParams('com_content', true);
// Convert the parameter fields into objects.
foreach ($items as &$item)
{
$articleParams = new JRegistry;
$articleParams->loadString($item->attribs);
// Unpack readmore and layout params
$item->alternative_readmore = $articleParams->get('alternative_readmore');
$item->layout = $articleParams->get('layout');
$item->params = clone $this->getState('params');
// For blogs, article params override menu item params only if menu param = 'use_article'
// Otherwise, menu item params control the layout
// If menu item is 'use_article' and there is no article param, use global
if ((JRequest::getString('layout') == 'blog') || (JRequest::getString('view') == 'featured')
|| ($this->getState('params')->get('layout_type') == 'blog')) {
// create an array of just the params set to 'use_article'
$menuParamsArray = $this->getState('params')->toArray();
$articleArray = array();
foreach ($menuParamsArray as $key => $value)
{
if ($value === 'use_article') {
// if the article has a value, use it
if ($articleParams->get($key) != '') {
// get the value from the article
$articleArray[$key] = $articleParams->get($key);
}
else {
// otherwise, use the global value
$articleArray[$key] = $globalParams->get($key);
}
}
}
// merge the selected article params
if (count($articleArray) > 0) {
$articleParams = new JRegistry;
$articleParams->loadArray($articleArray);
$item->params->merge($articleParams);
}
}
else {
// For non-blog layouts, merge all of the article params
$item->params->merge($articleParams);
}
// get display date
switch ($item->params->get('list_show_date'))
{
case 'modified':
$item->displayDate = $item->modified;
break;
case 'published':
$item->displayDate = ($item->publish_up == 0) ? $item->created : $item->publish_up;
break;
default:
case 'created':
$item->displayDate = $item->created;
break;
}
// Compute the asset access permissions.
// Technically guest could edit an article, but lets not check that to improve performance a little.
if (!$guest) {
$asset = 'com_content.article.'.$item->id;
// Check general edit permission first.
if ($user->authorise('core.edit', $asset)) {
$item->params->set('access-edit', true);
}
// Now check if edit.own is available.
elseif (!empty($userId) && $user->authorise('core.edit.own', $asset)) {
// Check for a valid user and that they are the owner.
if ($userId == $item->created_by) {
$item->params->set('access-edit', true);
}
}
}
$access = $this->getState('filter.access');
if ($access) {
// If the access filter has been set, we already have only the articles this user can view.
$item->params->set('access-view', true);
}
else {
// If no access filter is set, the layout takes some responsibility for display of limited information.
if ($item->catid == 0 || $item->category_access === null) {
$item->params->set('access-view', in_array($item->access, $groups));
}
else {
$item->params->set('access-view', in_array($item->access, $groups) && in_array($item->category_access, $groups));
}
}
}
return $items;
}
public function getStart()
{
return $this->getState('list.start');
}
}
