category_list.php

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<?php

class Category_List extends oxAdminList
{
    protected $_sListClass = 'oxcategory';

    protected $_sListType = 'oxcategorylist';

    public function getListSorting()
    {
        if ( $this->_aCurrSorting === null && !oxConfig::getParameter( 'sort' )  && ( $oBaseObject = $this->getItemListBaseObject() ) ) {
            $sCatView = $oBaseObject->getCoreTableName();

            $this->_aCurrSorting[$sCatView]["oxrootid"] = "desc";
            $this->_aCurrSorting[$sCatView]["oxleft"]   = "asc";

            return $this->_aCurrSorting;
        } else {
            return parent::getListSorting();
        }
    }

    public function render()
    {
        $myConfig = $this->getConfig();

        parent::render();

        $oLang = oxRegistry::getLang();
        $iLang = $oLang->getTplLanguage();

        // parent category tree
        $oCatTree = oxNew( "oxCategoryList" );
        $oCatTree->loadList();

        // add Root as fake category
        // rebuild list as we need the root entry at the first position
        $aNewList = array();
        $oRoot = new stdClass();
        $oRoot->oxcategories__oxid    = new oxField( null, oxField::T_RAW );
        $oRoot->oxcategories__oxtitle = new oxField( $oLang->translateString("viewAll", $iLang ), oxField::T_RAW );
        $aNewList[] = $oRoot;

        $oRoot = new stdClass();
        $oRoot->oxcategories__oxid    = new oxField( "oxrootid", oxField::T_RAW );
        $oRoot->oxcategories__oxtitle = new oxField( "-- ".$oLang->translateString("mainCategory", $iLang )." --", oxField::T_RAW );
        $aNewList[] = $oRoot;

        foreach ( $oCatTree as $oCategory ) {
            $aNewList[] = $oCategory;
        }

        $oCatTree->assign( $aNewList );
        $aFilter = $this->getListFilter();
        if ( is_array( $aFilter ) && isset( $aFilter["oxcategories"]["oxparentid"] ) ) {
            foreach ( $oCatTree as $oCategory ) {
                if ( $oCategory->oxcategories__oxid->value == $aFilter["oxcategories"]["oxparentid"] ) {
                    $oCategory->selected = 1;
                    break;
                }
            }
        }

        $this->_aViewData["cattree"] = $oCatTree;
        return "category_list.tpl";
    }
}