silverstripe-cms/code/CMSSiteTreeFilter.php

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<?php
/**
* Base class for filtering the subtree for certain node statuses.
*
* The simplest way of building a CMSSiteTreeFilter is to create a pagesToBeShown() method that
* returns an Iterator of maps, each entry containing the 'ID' and 'ParentID' of the pages to be
* included in the tree. The reuslt of a DB::query() can be returned directly.
*
* If you wish to make a more complex tree, you can overload includeInTree($page) to return true/
* false depending on whether the given page should be included. Note that you will need to include
* parent helper pages yourself.
*
* @package cms
* @subpackage content
*/
abstract class CMSSiteTreeFilter extends Object {
protected $ids = null;
protected $expanded = array();
static function showInList() {
return true;
}
function getTree() {
if(method_exists($this, 'pagesIncluded')) {
$this->populateIDs();
}
$leftAndMain = new CMSMain();
$tree = $leftAndMain->getSiteTreeFor('SiteTree', isset($_REQUEST['ID']) ? $_REQUEST['ID'] : 0, null, null, array($this, 'includeInTree'));
// Trim off the outer tag
$tree = ereg_replace('^[ \t\r\n]*<ul[^>]*>','', $tree);
$tree = ereg_replace('</ul[^>]*>[ \t\r\n]*$','', $tree);
return $tree;
}
/**
* Populate $this->ids with the IDs of the pages returned by pagesIncluded(), also including
* the necessary parent helper pages.
*/
protected function populateIDs() {
if($res = $this->pagesIncluded()) {
/* And keep a record of parents we don't need to get parents of themselves, as well as IDs to mark */
foreach($res as $row) {
if ($row['ParentID']) $parents[$row['ParentID']] = true;
$this->ids[$row['ID']] = true;
}
while (!empty($parents)) {
$res = DB::query('SELECT "ParentID", "ID" FROM "SiteTree" WHERE "ID" in ('.implode(',',array_keys($parents)).')');
$parents = array();
foreach($res as $row) {
if ($row['ParentID']) $parents[$row['ParentID']] = true;
$this->ids[$row['ID']] = true;
$this->expanded[$row['ID']] = true;
}
}
}
}
/**
* Returns true if the given page should be included in the tree.
*/
public function includeInTree($page) {
return isset($this->ids[$page->ID]) && $this->ids[$page->ID] ? true : false;
}
}
class CMSSiteTreeFilter_DeletedPages extends CMSSiteTreeFilter {
static function title() {
return "All pages, including deleted";
}
function getTree() {
$leftAndMain = new CMSMain();
$tree = $leftAndMain->getSiteTreeFor('SiteTree', isset($_REQUEST['ID']) ? $_REQUEST['ID'] : 0, "AllHistoricalChildren", "numHistoricalChildren");
// Trim off the outer tag
$tree = ereg_replace('^[ \t\r\n]*<ul[^>]*>','', $tree);
$tree = ereg_replace('</ul[^>]*>[ \t\r\n]*$','', $tree);
return $tree;
}
}
class CMSSiteTreeFilter_ChangedPages extends CMSSiteTreeFilter {
static function title() {
return "Changed pages";
}
function pagesIncluded() {
return DB::query('SELECT "ParentID", "ID" FROM "SiteTree" WHERE "Status" LIKE \'Saved%\'');
}
}
class CMSSiteTreeFilter_Search extends CMSSiteTreeFilter {
public $data;
function __construct() {
$this->data = $_REQUEST;
}
static function showInList() { return false; }
static function title() {
return "Search";
}
/**
* Retun an array of maps containing the keys, 'ID' and 'ParentID' for each page to be displayed
* in the search.
*/
function pagesIncluded() {
$data = $this->data;
$this->ids = array();
$this->expanded = array();
$where = array();
// Match against URLSegment, Title, MenuTitle & Content
if (isset($data['SiteTreeSearchTerm'])) {
$term = Convert::raw2sql($data['SiteTreeSearchTerm']);
$where[] = "\"URLSegment\" LIKE '%$term%' OR \"Title\" LIKE '%$term%' OR \"MenuTitle\" LIKE '%$term%' OR \"Content\" LIKE '%$term%'";
}
// Match against date
if (isset($data['SiteTreeFilterDate'])) {
$date = $data['SiteTreeFilterDate'];
$date = ((int)substr($date,6,4)) . '-' . ((int)substr($date,3,2)) . '-' . ((int)substr($date,0,2));
$where[] = "\"LastEdited\" > '$date'";
}
// Match against exact ClassName
if (isset($data['ClassName']) && $data['ClassName'] != 'All') {
$klass = Convert::raw2sql($data['ClassName']);
$where[] = "\"ClassName\" = '$klass'";
}
// Partial string match against a variety of fields
foreach (CMSMain::T_SiteTreeFilterOptions() as $key => $value) {
if (!empty($data[$key])) {
$match = Convert::raw2sql($data[$key]);
$where[] = "\"$key\" LIKE '%$match%'";
}
}
$where = empty($where) ? '' : 'WHERE (' . implode(') AND (',$where) . ')';
$parents = array();
/* Do the actual search */
$res = DB::query('SELECT "ParentID", "ID" FROM "SiteTree" '.$where);
return $res;
}
}