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<?php
/**
* Helper functions for Site Pages.
*
* @package SitePages
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
* @author Curverider Ltd
* @copyright Curverider Ltd 2008-2010
* @link http://elgg.org/
*/
/**
* Returns a single object that holds information about
* customizations for the $page_type site page. The object guid
* is stored as private data on the site entity. This allows the pages
* to still be searchable as standard entities.
*
* @param $type
* @return mixed ElggSitePage on success, FALSE on fail
*/
function sitepages_get_sitepage_object($page_type) {
global $CONFIG;
$page_guid = get_private_setting($CONFIG->site->getGUID(), "sitepages:$page_type");
$sitepage = get_entity($page_guid);
if ($sitepage instanceof ElggSitePage || $sitepage->page_type == $page_type) {
return $sitepage;
}
return FALSE;
}
/**
* Creates a site page object.
*
* @param str $page_type
* @return mixed ElggSitePage on success, FALSE on fail.
*/
function sitepages_create_sitepage_object($page_type) {
global $CONFIG;
$sitepage = new ElggSitePage();
$sitepage->page_type = $page_type;
$sitepage->access_id = ACCESS_PUBLIC;
$sitepage->save();
if ($sitepage->save() && set_private_setting($CONFIG->site->getGUID(), "sitepages:$page_type", $sitepage->getGUID())) {
return $sitepage;
}
return FALSE;
}
/**
* Assembles html for edit sections of site pages.
*
* @param str $section
* @return str html
*/
function sitepages_get_edit_section_content($page_type) {
set_context('admin');
$keywords = '';
$title = elgg_view_title(elgg_echo('sitepages'));
$menu = elgg_view('sitepages/menu', array('page_type' => $page_type));
switch ($page_type) {
case 'front':
$view = 'sitepages/forms/editfront';
$keywords = elgg_view('sitepages/keywords');
break;
case 'seo':
$view = 'sitepages/forms/editmeta';
break;
default:
$view = 'sitepages/forms/edit';
break;
}
$form .= elgg_view($view, array('page_type' => $page_type));
$body = $title . $menu . $form;
$content = elgg_view_layout('one_column_with_sidebar', $body, $keywords);
return $content;
}
/**
* Assembles html for displaying site pages
*
* @param string $page_type
* @return string Formatted html
*/
function sitepages_get_page_content($page_type) {
$body = elgg_view_title(elgg_echo("sitepages:". strtolower($page_type)));
$sitepage = sitepages_get_sitepage_object($page_type);
if ($sitepage) {
$body .= elgg_view('page_elements/elgg_content', array('body' => $sitepage->description));
} else {
$body .= elgg_view('page_elements/elgg_content', array('body' => elgg_echo('sitepages:notset')));
}
$content = elgg_view_layout('one_column_with_sidebar', $body);
return $content;
}
/**
* Used to determine how to handle special non-static keywords.
*
* @param unknown_type $matches
* @return html
*/
function sitepages_parse_view_match($matches) {
$keyword = $matches[0];
$type = trim($matches[1]);
$params_string = trim($matches[2]);
switch ($type) {
case 'entity':
$options = sitepages_keywords_parse_entity_params($params_string);
// must use this lower-level function because I missed refactoring
// the list entity functions for relationships.
// (which, since you're here, is the only function that runs through all
// possible options for elgg_get_entities*() functions...)
$entities = elgg_get_entities_from_relationship($options);
$content = elgg_view_entity_list($entities, count($entities), $options['offset'],
$options['limit'], $options['full_view'], $options['view_type_toggle'], $options['pagination']);
break;
case 'view':
// parses this into an acceptable array for $vars.
$info = sitepages_keywords_parse_view_params($params_string);
$content = elgg_view($info['view'], $info['vars']);
break;
}
return $content;
}
/**
* Creates an array from a "name=value, name1=value2" string.
*
* @param $string
* @return array
*/
function sitepages_keywords_tokenize_params($string) {
$pairs = array_map('trim', explode(',', $string));
$params = array();
foreach ($pairs as $pair) {
list($name, $value) = explode('=', $pair);
$name = trim($name);
$value = trim($value);
$params[$name] = $value;
}
return $params;
}
/**
*
* @param $string
* @return unknown_type
*/
function sitepages_keywords_parse_view_params($string) {
$vars = sitepages_keywords_tokenize_params($string);
// the first element key is the view
$var_keys = array_keys($vars);
$view = $var_keys[0];
$info = array(
'view' => $view,
'vars' => $vars
);
return $info;
}
/**
* Returns an options array suitable for using in elgg_get_entities()
*
* @param string $string "name=value, name2=value2"
* @return array
*/
function sitepages_keywords_parse_entity_params($string) {
$params = sitepages_keywords_tokenize_params($string);
// handle some special cases
if (isset($params['owner'])) {
if ($user = get_user_by_username($params['owner'])) {
$params['owner_guid'] = $user->getGUID();
}
}
// @todo probably need to add more for
// group -> container_guid, etc
return $params;
}
/**
* Utility object to store site page information.
*/
class ElggSitePage extends ElggObject {
public function initialise_attributes() {
parent::initialise_attributes();
$this->attributes['subtype'] = 'sitepages_page';
}
}
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