class.ilTable2GUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
 
require_once("Services/Table/classes/class.ilTableGUI.php");
 
class ilTable2GUI extends ilTableGUI
{
 
    protected $ctrl;
 
    protected $tpl;
 
    protected $parent_obj;
 
    protected $parent_cmd;
 
    protected $close_command = "";
    private $unique_id;
    private $headerHTML;
    protected $top_anchor = "il_table_top";
    protected $filters = array();
    protected $optional_filters = array();
    protected $filter_cmd = 'applyFilter';
    protected $reset_cmd = 'resetFilter';
    protected $filter_cols = 5;
    protected $ext_sort = false;
    protected $ext_seg = false;
    protected $context = "";
 
    protected $mi_sel_buttons = [];
    protected $disable_filter_hiding = false;
    protected $selected_filter = false;
    protected $top_commands = true;
    protected $selectable_columns = array();
    protected $selected_column = array();
    protected $show_templates = false;
    protected $show_rows_selector = true; // JF, 2014-10-27
    protected $rows_selector_off = false;
 
    protected $nav_determined = false;
    protected $limit_determined = false;
    protected $filters_determined = false;
    protected $columns_determined = false;
    protected $open_form_tag = true;
    protected $close_form_tag = true;
 
    protected $export_formats = [];
    protected $export_mode;
    protected $print_mode;
 
    protected $enable_command_for_all;
    protected $restore_filter; // [bool]
    protected $restore_filter_values; // [bool]
    
    protected $default_filter_visibility = false;
 
    protected $sortable_fields = array();
    protected $prevent_double_submission = true;
 
    protected $row_selector_label;
 
    protected $select_all_on_top = false;
 
    protected $sel_buttons = [];
 
 
    const FILTER_TEXT = 1;
    const FILTER_SELECT = 2;
    const FILTER_DATE = 3;
    const FILTER_LANGUAGE = 4;
    const FILTER_NUMBER_RANGE = 5;
    const FILTER_DATE_RANGE = 6;
    const FILTER_DURATION_RANGE = 7;
    const FILTER_DATETIME_RANGE = 8;
    const FILTER_CHECKBOX = 9;
 
    const EXPORT_EXCEL = 1;
    const EXPORT_CSV = 2;
 
    const ACTION_ALL_LIMIT = 1000;
 
 
    public function __construct($a_parent_obj, $a_parent_cmd = "", $a_template_context = "")
    {
        global $DIC;
 
        $this->lng = $DIC->language();
        $this->ctrl = $DIC->ctrl();
        $lng = $DIC->language();
 
        parent::__construct(0, false);
        $this->unique_id = md5(uniqid());
        $this->parent_obj = $a_parent_obj;
        $this->parent_cmd = $a_parent_cmd;
        $this->buttons = array();
        $this->header_commands = array();
        $this->multi = array();
        $this->hidden_inputs = array();
        $this->formname = "table_" . $this->unique_id;
        $this->tpl = new ilTemplate("tpl.table2.html", true, true, "Services/Table");
 
        $lng->loadLanguageModule('tbl');
 
        if (!$a_template_context) {
            $a_template_context = $this->getId();
        }
        $this->setContext($a_template_context);
 
        // activate export mode
        if (isset($_GET[$this->prefix . "_xpt"])) {
            $this->export_mode = (int) $_GET[$this->prefix . "_xpt"];
        }
 
        // template handling
        if (isset($_GET[$this->prefix . "_tpl"])) {
            $this->restoreTemplate($_GET[$this->prefix . "_tpl"]);
        }
 
        $this->determineLimit();
        $this->setIsDataTable(true);
        $this->setEnableNumInfo(true);
        $this->determineSelectedColumns();
    }
 
    public function setOpenFormTag($a_val)
    {
        $this->open_form_tag = $a_val;
    }
 
    public function getOpenFormTag()
    {
        return $this->open_form_tag;
    }
 
    public function setCloseFormTag($a_val)
    {
        $this->close_form_tag = $a_val;
    }
 
    public function getCloseFormTag()
    {
        return $this->close_form_tag;
    }
 
    public function determineLimit()
    {
        global $DIC;
 
        $ilUser = null;
        if (isset($DIC["ilUser"])) {
            $ilUser = $DIC["ilUser"];
        }
 
        if ($this->limit_determined) {
            return;
        }
 
        $limit = 0;
        if (isset($_GET[$this->prefix . "_trows"])) {
            $this->storeProperty("rows", $_GET[$this->prefix . "_trows"]);
            $limit = $_GET[$this->prefix . "_trows"];
            $this->resetOffset();
        }
 
        if ($limit == 0) {
            $rows = $this->loadProperty("rows");
            if ($rows > 0) {
                $limit = $rows;
            } else {
                if (is_object($ilUser)) {
                    $limit = $ilUser->getPref("hits_per_page");
                } else {
                    $limit = 40;
                }
            }
        }
 
        $this->setLimit($limit);
        $this->limit_determined = true;
    }
 
    public function getSelectableColumns()
    {
        return array();
    }
 
    public function determineSelectedColumns()
    {
        if ($this->columns_determined) {
            return;
        }
 
        $old_sel = $this->loadProperty("selfields");
 
        $stored = false;
        if ($old_sel != "") {
            $sel_fields =
                @unserialize($old_sel);
            $stored = true;
        }
        if (!is_array($sel_fields)) {
            $stored = false;
            $sel_fields = array();
        }
 
        $this->selected_columns = array();
        $set = false;
        foreach ($this->getSelectableColumns() as $k => $c) {
            $this->selected_column[$k] = false;
 
            $new_column = ($sel_fields[$k] === null);
 
            if (isset($_POST["tblfsh" . $this->getId()]) && $_POST["tblfsh" . $this->getId()]) {
                $set = true;
                if (is_array($_POST["tblfs" . $this->getId()]) && in_array($k, $_POST["tblfs" . $this->getId()])) {
                    $this->selected_column[$k] = true;
                }
            } elseif ($stored && !$new_column) {        // take stored values
                $this->selected_column[$k] = $sel_fields[$k];
            } else {    // take default values
                if ($new_column) {
                    $set = true;
                }
                if (isset($c["default"]) && $c["default"]) {
                    $this->selected_column[$k] = true;
                }
            }
 
            // Optional filters
            if (isset($_POST["tblff" . $this->getId()]) && $_POST["tblff" . $this->getId()]) {
                $set = true;
                if (is_array($_POST["tblff" . $this->getId()]) && in_array($k, $_POST["tblff" . $this->getId()])) {
                    $this->selected_column[$k] = true;
                }
            }
 
        }
 
        if ($old_sel != serialize($this->selected_column) && $set) {
            $this->storeProperty("selfields", serialize($this->selected_column));
        }
 
        $this->columns_determined = true;
    }
 
    public function isColumnSelected($a_col)
    {
        return $this->selected_column[$a_col];
    }
 
    public function getSelectedColumns()
    {
        $scol = array();
        foreach ($this->selected_column as $k => $v) {
            if ($v) {
                $scol[$k] = $k;
            }
        }
        return $scol;
    }
 
    public function executeCommand()
    {
        $ilCtrl = $this->ctrl;
 
        $next_class = $ilCtrl->getNextClass($this);
        $cmd = $ilCtrl->getCmd();
 
        switch ($next_class) {
            case 'ilformpropertydispatchgui':
                include_once './Services/Form/classes/class.ilFormPropertyDispatchGUI.php';
                $form_prop_dispatch = new ilFormPropertyDispatchGUI();
                $this->initFilter();
                $item = $this->getFilterItemByPostVar($_GET["postvar"]);
                $form_prop_dispatch->setItem($item);
                return $ilCtrl->forwardCommand($form_prop_dispatch);
                break;
 
        }
        return false;
    }
 
    public function resetOffset($a_in_determination = false)
    {
        if (!$this->nav_determined && !$a_in_determination) {
            $this->determineOffsetAndOrder();
        }
        $this->nav_value = $this->getOrderField() . ":" . $this->getOrderDirection() . ":0";
        $_GET[$this->getNavParameter()] =
            $_POST[$this->getNavParameter() . "1"] =
            $this->nav_value;
        //echo $this->nav_value;
        $this->setOffset(0);
    }
 
    public function initFilter()
    {
    }
 
    public function getParentObject()
    {
        return $this->parent_obj;
    }
 
    public function getParentCmd()
    {
        return $this->parent_cmd;
    }
 
    public function setTopAnchor($a_val)
    {
        $this->top_anchor = $a_val;
    }
 
    public function getTopAnchor()
    {
        return $this->top_anchor;
    }
 
    public function setNoEntriesText($a_text)
    {
        $this->noentriestext = $a_text;
    }
 
    public function getNoEntriesText()
    {
        return $this->noentriestext;
    }
 
    public function setIsDataTable($a_val)
    {
        $this->datatable = $a_val;
    }
 
    public function getIsDataTable()
    {
        return $this->datatable;
    }
 
    public function setEnableTitle($a_enabletitle)
    {
        $this->enabled["title"] = $a_enabletitle;
    }
 
    public function getEnableTitle()
    {
        return $this->enabled["title"];
    }
 
    public function setEnableHeader($a_enableheader)
    {
        $this->enabled["header"] = $a_enableheader;
    }
 
    public function getEnableHeader()
    {
        return $this->enabled["header"];
    }
 
    public function setEnableNumInfo($a_val)
    {
        $this->num_info = $a_val;
    }
 
    public function getEnableNumInfo()
    {
        return $this->num_info;
    }
 
    final public function setTitle($a_title, $a_icon = 0, $a_icon_alt = 0)
    {
        parent::setTitle($a_title, $a_icon, $a_icon_alt);
    }
 
    public function setDescription($a_val)
    {
        $this->description = $a_val;
    }
 
    public function getDescription()
    {
        return $this->description;
    }
 
    public function setOrderField($a_order_field)
    {
        $this->order_field = $a_order_field;
    }
 
    public function getOrderField()
    {
        return $this->order_field;
    }
 
    final public function setData($a_data)
    {
        // check column names against given data (to ensure proper sorting)
        if (defined('DEVMODE') && DEVMODE &&
            $this->enabled["header"] && $this->enabled["sort"] &&
            $this->columns_determined && is_array($this->column) &&
            is_array($a_data) && sizeof($a_data) && !$this->getExternalSorting()) {
            $check = $a_data;
            $check = array_keys(array_shift($check));
            foreach ($this->column as $col) {
                if ($col["sort_field"] && !in_array($col["sort_field"], $check)) {
                    $invalid[] = $col["sort_field"];
                }
            }
 
            // this triggers an error, if some columns are not set for some rows
            // which may just be a representation of "null" values, e.g.
            // ilAdvancedMDValues:queryForRecords works that way.
/*                      if(sizeof($invalid))
            {
                trigger_error("The following columns are defined as sortable but".
                    " cannot be found in the given data: ".implode(", ", $invalid).
                    ". Sorting will not work properly.", E_USER_WARNING);
            }*/
        }
 
        $this->row_data = $a_data;
        if (!is_array($this->row_data)) {
            $this->row_data = [];
        }
    }
 
    final public function getData()
    {
        return $this->row_data;
    }
 
    final public function dataExists()
    {
        if (is_array($this->row_data)) {
            if (count($this->row_data) > 0) {
                return true;
            }
        }
        return false;
    }
 
    final public function setPrefix($a_prefix)
    {
        $this->prefix = $a_prefix;
    }
 
    final public function getPrefix()
    {
        return $this->prefix;
    }
 
    final public function addFilterItem($a_input_item, $a_optional = false)
    {
        $a_input_item->setParent($this);
        if (!$a_optional) {
            $this->filters[] = $a_input_item;
        } else {
            $this->optional_filters[] = $a_input_item;
        }
 
        // restore filter values (from stored view)
        if ($this->restore_filter) {
            if (array_key_exists($a_input_item->getFieldId(), $this->restore_filter_values)) {
                $this->setFilterValue($a_input_item, $this->restore_filter_values[$a_input_item->getFieldId()]);
            } else {
                $this->setFilterValue($a_input_item, null); // #14949
            }
        }
    }
 
    public function addFilterItemByMetaType($id, $type = self::FILTER_TEXT, $a_optional = false, $caption = null)
    {
        global $DIC;
 
        $lng = $DIC->language();        // constructor may not be called here, if initFilter is being called in subclasses before parent::__construct
 
        if (!$caption) {
            $caption = $lng->txt($id);
        }
 
        include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
 
        switch ($type) {
            case self::FILTER_CHECKBOX:
                $item = new ilCheckboxInputGUI($caption, $id);
                break;
 
            case self::FILTER_SELECT:
                include_once("./Services/Form/classes/class.ilSelectInputGUI.php");
                $item = new ilSelectInputGUI($caption, $id);
                break;
 
            case self::FILTER_DATE:
                include_once("./Services/Form/classes/class.ilDateTimeInputGUI.php");
                $item = new ilDateTimeInputGUI($caption, $id);
                break;
 
            case self::FILTER_TEXT:
                include_once("./Services/Form/classes/class.ilTextInputGUI.php");
                $item = new ilTextInputGUI($caption, $id);
                $item->setMaxLength(64);
                $item->setSize(20);
                // $item->setSubmitFormOnEnter(true);
                break;
 
            case self::FILTER_LANGUAGE:
                $lng->loadLanguageModule("meta");
                include_once("./Services/Form/classes/class.ilSelectInputGUI.php");
                $item = new ilSelectInputGUI($caption, $id);
                $options = array("" => $lng->txt("trac_all"));
                foreach ($lng->getInstalledLanguages() as $lang_key) {
                    $options[$lang_key] = $lng->txt("meta_l_" . $lang_key);
                }
                $item->setOptions($options);
                break;
 
            case self::FILTER_NUMBER_RANGE:
                include_once("./Services/Form/classes/class.ilCombinationInputGUI.php");
                include_once("./Services/Form/classes/class.ilNumberInputGUI.php");
                $item = new ilCombinationInputGUI($caption, $id);
                $combi_item = new ilNumberInputGUI("", $id . "_from");
                $item->addCombinationItem("from", $combi_item, $lng->txt("from"));
                $combi_item = new ilNumberInputGUI("", $id . "_to");
                $item->addCombinationItem("to", $combi_item, $lng->txt("to"));
                $item->setComparisonMode(ilCombinationInputGUI::COMPARISON_ASCENDING);
                $item->setMaxLength(7);
                $item->setSize(20);
                break;
 
            case self::FILTER_DATE_RANGE:
                include_once("./Services/Form/classes/class.ilCombinationInputGUI.php");
                include_once("./Services/Form/classes/class.ilDateTimeInputGUI.php");
                $item = new ilCombinationInputGUI($caption, $id);
                $combi_item = new ilDateTimeInputGUI("", $id . "_from");
                $item->addCombinationItem("from", $combi_item, $lng->txt("from"));
                $combi_item = new ilDateTimeInputGUI("", $id . "_to");
                $item->addCombinationItem("to", $combi_item, $lng->txt("to"));
                $item->setComparisonMode(ilCombinationInputGUI::COMPARISON_ASCENDING);
                break;
 
            case self::FILTER_DATETIME_RANGE:
                include_once("./Services/Form/classes/class.ilCombinationInputGUI.php");
                include_once("./Services/Form/classes/class.ilDateTimeInputGUI.php");
                $item = new ilCombinationInputGUI($caption, $id);
                $combi_item = new ilDateTimeInputGUI("", $id . "_from");
                $combi_item->setShowTime(true);
                $item->addCombinationItem("from", $combi_item, $lng->txt("from"));
                $combi_item = new ilDateTimeInputGUI("", $id . "_to");
                $combi_item->setShowTime(true);
                $item->addCombinationItem("to", $combi_item, $lng->txt("to"));
                $item->setComparisonMode(ilCombinationInputGUI::COMPARISON_ASCENDING);
                break;
 
            case self::FILTER_DURATION_RANGE:
                $lng->loadLanguageModule("form");
                include_once("./Services/Form/classes/class.ilCombinationInputGUI.php");
                include_once("./Services/Form/classes/class.ilDurationInputGUI.php");
                $item = new ilCombinationInputGUI($caption, $id);
                $combi_item = new ilDurationInputGUI("", $id . "_from");
                $combi_item->setShowMonths(false);
                $combi_item->setShowDays(true);
                $combi_item->setShowSeconds(true);
                $item->addCombinationItem("from", $combi_item, $lng->txt("from"));
                $combi_item = new ilDurationInputGUI("", $id . "_to");
                $combi_item->setShowMonths(false);
                $combi_item->setShowDays(true);
                $combi_item->setShowSeconds(true);
                $item->addCombinationItem("to", $combi_item, $lng->txt("to"));
                $item->setComparisonMode(ilCombinationInputGUI::COMPARISON_ASCENDING);
                break;
 
            default:
                return false;
        }
 
        $this->addFilterItem($item, $a_optional);
        $item->readFromSession();
        return $item;
    }
 
    final public function getFilterItems($a_optionals = false)
    {
        if (!$a_optionals) {
            return $this->filters;
        }
        return $this->optional_filters;
    }
 
    final public function getFilterItemByPostVar($a_post_var)
    {
        foreach ($this->getFilterItems() as $item) {
            if ($item->getPostVar() == $a_post_var) {
                return $item;
            }
        }
        foreach ($this->getFilterItems(true) as $item) {
            if ($item->getPostVar() == $a_post_var) {
                return $item;
            }
        }
        return false;
    }
 
    public function setFilterCols($a_val)
    {
        $this->filter_cols = $a_val;
    }
 
    public function getFilterCols()
    {
        return $this->filter_cols;
    }
 
    public function setDisableFilterHiding($a_val = true)
    {
        $this->disable_filter_hiding = $a_val;
    }
 
    public function getDisableFilterHiding()
    {
        return $this->disable_filter_hiding;
    }
 
    public function isFilterSelected($a_col)
    {
        return $this->selected_filter[$a_col];
    }
 
    public function getSelectedFilters()
    {
        $sfil = array();
        foreach ($this->selected_filter as $k => $v) {
            if ($v) {
                $sfil[$k] = $k;
            }
        }
        return $sfil;
    }
 
    public function determineSelectedFilters()
    {
        if ($this->filters_determined) {
            return;
        }
 
        $old_sel = $this->loadProperty("selfilters");
        $stored = false;
        if ($old_sel != "") {
            $sel_filters =
                @unserialize($old_sel);
            $stored = true;
        }
        if (!is_array($sel_filters)) {
            $stored = false;
            $sel_filters = array();
        }
 
        $this->selected_filter = array();
        $set = false;
        foreach ($this->getFilterItems(true) as $item) {
            $k = $item->getPostVar();
 
            $this->selected_filter[$k] = false;
 
            if ($_POST["tblfsf" . $this->getId()]) {
                $set = true;
                if (is_array($_POST["tblff" . $this->getId()]) && in_array($k, $_POST["tblff" . $this->getId()])) {
                    $this->selected_filter[$k] = true;
                } else {
                    $item->setValue(null);
                    $item->writeToSession();
                }
            } elseif ($stored) {        // take stored values
                $this->selected_filter[$k] = $sel_filters[$k];
            }
        }
 
        if ($old_sel != serialize($this->selected_filter) && $set) {
            $this->storeProperty("selfilters", serialize($this->selected_filter));
        }
 
        $this->filters_determined = true;
    }
 
    public function setCustomPreviousNext($a_prev_link, $a_next_link)
    {
        $this->custom_prev_next = true;
        $this->custom_prev = $a_prev_link;
        $this->custom_next = $a_next_link;
    }
 
    final public function setFormAction($a_form_action, $a_multipart = false)
    {
        $this->form_action = $a_form_action;
        $this->form_multipart = (bool) $a_multipart;
    }
 
    final public function getFormAction()
    {
        return $this->form_action;
    }
 
    public function setFormName($a_formname = "")
    {
        $this->formname = $a_formname;
    }
 
    public function getFormName()
    {
        return $this->formname;
    }
 
    public function setId($a_val)
    {
        $this->id = $a_val;
        if ($this->getPrefix() == "") {
            $this->setPrefix($a_val);
        }
    }
 
    public function getId()
    {
        return $this->id;
    }
 
    public function setDisplayAsBlock($a_val)
    {
        $this->display_as_block = $a_val;
    }
 
    public function getDisplayAsBlock()
    {
        return $this->display_as_block;
    }
 
    public function getSelectAllCheckbox()
    {
        return $this->select_all_checkbox;
    }
 
    public function setSelectAllCheckbox($a_select_all_checkbox, $a_select_all_on_top = false)
    {
        $this->select_all_checkbox = $a_select_all_checkbox;
        $this->select_all_on_top = $a_select_all_on_top;
    }
 
    public function setExternalSorting($a_val)
    {
        $this->ext_sort = $a_val;
    }
 
    public function getExternalSorting()
    {
        return $this->ext_sort;
    }
 
    public function setFilterCommand($a_val, $a_caption = null)
    {
        $this->filter_cmd = $a_val;
        $this->filter_cmd_txt = $a_caption;
    }
 
    public function getFilterCommand()
    {
        return $this->filter_cmd;
    }
 
    public function setResetCommand($a_val, $a_caption = null)
    {
        $this->reset_cmd = $a_val;
        $this->reset_cmd_txt = $a_caption;
    }
 
    public function getResetCommand()
    {
        return $this->reset_cmd;
    }
 
    public function setExternalSegmentation($a_val)
    {
        $this->ext_seg = $a_val;
    }
 
    public function getExternalSegmentation()
    {
        return $this->ext_seg;
    }
 
    final public function setRowTemplate($a_template, $a_template_dir = "")
    {
        $this->row_template = $a_template;
        $this->row_template_dir = $a_template_dir;
    }
 
    public function setDefaultOrderField($a_defaultorderfield)
    {
        $this->defaultorderfield = $a_defaultorderfield;
    }
 
    public function getDefaultOrderField()
    {
        return $this->defaultorderfield;
    }
 
    public function setDefaultOrderDirection($a_defaultorderdirection)
    {
        $this->defaultorderdirection = $a_defaultorderdirection;
    }
 
    public function getDefaultOrderDirection()
    {
        return $this->defaultorderdirection;
    }
    
    public function setDefaultFilterVisiblity($a_status)
    {
        $this->default_filter_visibility = $a_status;
    }
    
    public function getDefaultFilterVisibility()
    {
        return $this->default_filter_visibility;
    }
    
    /*
     * Removes all command buttons from the table
     *
     * @access  public
     */
    public function clearCommandButtons()
    {
        $this->buttons = array();
    }
 
    public function addCommandButton($a_cmd, $a_text, $a_onclick = '', $a_id = "", $a_class = null)
    {
        $this->buttons[] = array("cmd" => $a_cmd, "text" => $a_text, 'onclick' => $a_onclick,
            "id" => $a_id, "class" => $a_class);
    }
 
    public function addCommandButtonInstance(ilButtonBase $a_button)
    {
        $this->buttons[] = $a_button;
    }
 
    public function addSelectionButton($a_sel_var, $a_options, $a_cmd, $a_text, $a_default_selection = '')
    {
        echo "ilTabl2GUI->addSelectionButton() has been deprecated with 4.2. Please try to move the drop-down to ilToolbarGUI.";
        //              $this->sel_buttons[] = array("sel_var" => $a_sel_var, "options" => $a_options, "selected" => $a_default_selection, "cmd" => $a_cmd, "text" => $a_text);
    }
 
    public function addMultiItemSelectionButton($a_sel_var, $a_options, $a_cmd, $a_text, $a_default_selection = '')
    {
        $this->mi_sel_buttons[] = array("sel_var" => $a_sel_var, "options" => $a_options, "selected" => $a_default_selection, "cmd" => $a_cmd, "text" => $a_text);
        $this->addHiddenInput("cmd_sv[" . $a_cmd . "]", $a_sel_var);
    }
 
 
 
    public function setCloseCommand($a_link)
    {
        $this->close_command = $a_link;
    }
 
    public function addMultiCommand($a_cmd, $a_text)
    {
        $this->multi[] = array("cmd" => $a_cmd, "text" => $a_text);
    }
 
    public function addHiddenInput($a_name, $a_value)
    {
        $this->hidden_inputs[] = array("name" => $a_name, "value" => $a_value);
    }
 
    public function addHeaderCommand($a_href, $a_text, $a_target = "", $a_img = "")
    {
        $this->header_commands[] = array("href" => $a_href, "text" => $a_text,
            "target" => $a_target, "img" => $a_img);
    }
 
    public function setTopCommands($a_val)
    {
        $this->top_commands = $a_val;
    }
 
    public function getTopCommands()
    {
        return $this->top_commands;
    }
 
    final public function addColumn(
        $a_text,
        $a_sort_field = "",
        $a_width = "",
        $a_is_checkbox_action_column = false,
        $a_class = "",
        $a_tooltip = "",
        $a_tooltip_with_html = false
    ) {
        $this->column[] = array(
            "text" => $a_text,
            "sort_field" => $a_sort_field,
            "width" => $a_width,
            "is_checkbox_action_column" => $a_is_checkbox_action_column,
            "class" => $a_class,
            "tooltip" => $a_tooltip,
            "tooltip_html" => (bool) $a_tooltip_with_html
            );
        if ($a_sort_field != "") {
            $this->sortable_fields[] = $a_sort_field;
        }
        $this->column_count = count($this->column);
    }
 
 
    final public function getNavParameter()
    {
        return $this->prefix . "_table_nav";
    }
 
    public function setOrderLink($sort_field, $order_dir)
    {
        global $DIC;
 
        $ilUser = $DIC->user();
 
        $ilCtrl = $this->ctrl;
 
        $hash = "";
        if (is_object($ilUser) && $ilUser->getPref("screen_reader_optimization")) {
            $hash = "#" . $this->getTopAnchor();
        }
 
        $old = $_GET[$this->getNavParameter()];
 
        // set order link
        $ilCtrl->setParameter(
            $this->parent_obj,
            $this->getNavParameter(),
            $sort_field . ":" . $order_dir . ":" . $this->offset
        );
        $this->tpl->setVariable(
            "TBL_ORDER_LINK",
            $ilCtrl->getLinkTarget($this->parent_obj, $this->parent_cmd) . $hash
        );
 
        // set old value of nav variable
        $ilCtrl->setParameter(
            $this->parent_obj,
            $this->getNavParameter(),
            $old
        );
    }
 
    public function fillHeader()
    {
        $lng = $this->lng;
 
        $allcolumnswithwidth = true;
        foreach ((array) $this->column as $idx => $column) {
            if (!strlen($column["width"])) {
                $allcolumnswithwidth = false;
            } elseif ($column["width"] == "1") {
                // IE does not like 1 but seems to work with 1%
                $this->column[$idx]["width"] = "1%";
            }
        }
        if ($allcolumnswithwidth) {
            foreach ((array) $this->column as $column) {
                $this->tpl->setCurrentBlock("tbl_colgroup_column");
                $width = (is_numeric($column["width"]))
                    ? $column["width"]."px"
                    : $column["width"];
                $this->tpl->setVariable("COLGROUP_COLUMN_WIDTH", " style=\"width:" . $width . "\"");
                $this->tpl->parseCurrentBlock();
            }
        }
        $ccnt = 0;
        foreach ((array) $this->column as $column) {
            $ccnt++;
            //tooltip
            if ($column["tooltip"] != "") {
                include_once("./Services/UIComponent/Tooltip/classes/class.ilTooltipGUI.php");
                ilTooltipGUI::addTooltip(
                    "thc_" . $this->getId() . "_" . $ccnt,
                    $column["tooltip"],
                    "",
                    "bottom center",
                    "top center",
                    !$column["tooltip_html"]
                );
            }
 
            if ($column['is_checkbox_action_column'] && $this->select_all_on_top) {
                $this->tpl->setCurrentBlock('tbl_header_top_select_all');
                $this->tpl->setVariable("HEAD_SELECT_ALL_TXT_SELECT_ALL", $lng->txt("select_all"));
                $this->tpl->setVariable("HEAD_SELECT_ALL_CHECKBOX_NAME", $this->getSelectAllCheckbox());
                $this->tpl->setVariable("HEAD_SELECT_ALL_FORM_NAME", $this->getFormName());
                $this->tpl->setVariable("HEAD_CHECKBOXNAME", "chb_select_all_" . $this->unique_id . '_top');
                $this->tpl->parseCurrentBlock();
                continue;
            }
            if (
                !$this->enabled["sort"] ||
                $column["sort_field"] == "" &&
                !($column["is_checkbox_action_column"] && $this->select_all_on_top)
            ) {
                $this->tpl->setCurrentBlock("tbl_header_no_link");
                if ($column["width"] != "") {
                    $width = (is_numeric($column["width"]))
                        ? $column["width"]."px"
                        : $column["width"];
                    $this->tpl->setVariable("TBL_COLUMN_WIDTH_NO_LINK", " style=\"width:" . $width . "\"");
                }
                if ($column["class"] != "") {
                    $this->tpl->setVariable("TBL_COLUMN_CLASS_NO_LINK", " class=\"" . $column["class"] . "\"");
                }
                if (!$column["is_checkbox_action_column"]) {
                    $this->tpl->setVariable(
                        "TBL_HEADER_CELL_NO_LINK",
                        $column["text"]
                    );
                } else {
                    $this->tpl->setVariable(
                        "TBL_HEADER_CELL_NO_LINK",
                        ilUtil::img(ilUtil::getImagePath("spacer.png"), $lng->txt("action"))
                    );
                }
                $this->tpl->setVariable("HEAD_CELL_NL_ID", "thc_" . $this->getId() . "_" . $ccnt);
                if ($column["class"] != "") {
                    $this->tpl->setVariable("TBL_HEADER_CLASS", " " . $column["class"]);
                }
                $this->tpl->parseCurrentBlock();
                $this->tpl->touchBlock("tbl_header_th");
                continue;
            }
            if (($column["sort_field"] == $this->order_field) && ($this->order_direction != "")) {
                $this->tpl->setCurrentBlock("tbl_order_image");
                if ($this->order_direction == "asc") {
                    $this->tpl->setVariable("ORDER_CLASS", "glyphicon glyphicon-arrow-up");
                } else {
                    $this->tpl->setVariable("ORDER_CLASS", "glyphicon glyphicon-arrow-down");
                }
                $this->tpl->setVariable("IMG_ORDER_ALT", $this->lng->txt("change_sort_direction"));
                $this->tpl->parseCurrentBlock();
            }
 
            $this->tpl->setCurrentBlock("tbl_header_cell");
            $this->tpl->setVariable("TBL_HEADER_CELL", $column["text"]);
            $this->tpl->setVariable("HEAD_CELL_ID", "thc_" . $this->getId() . "_" . $ccnt);
 
            // only set width if a value is given for that column
            if ($column["width"] != "") {
                $width = (is_numeric($column["width"]))
                    ? $column["width"]."px"
                    : $column["width"];
                $this->tpl->setVariable("TBL_COLUMN_WIDTH", " style=\"width:" . $width . "\"");
            }
            if ($column["class"] != "") {
                $this->tpl->setVariable("TBL_COLUMN_CLASS", " class=\"" . $column["class"] . "\"");
            }
 
            $lng_sort_column = $this->lng->txt("sort_by_this_column");
            $this->tpl->setVariable("TBL_ORDER_ALT", $lng_sort_column);
 
            $order_dir = "asc";
 
            if ($column["sort_field"] == $this->order_field) {
                $order_dir = $this->sort_order;
 
                $lng_change_sort = $this->lng->txt("change_sort_direction");
                $this->tpl->setVariable("TBL_ORDER_ALT", $lng_change_sort);
            }
 
            if ($column["class"] != "") {
                $this->tpl->setVariable("TBL_HEADER_CLASS", " " . $column["class"]);
            }
            $this->setOrderLink($column["sort_field"], $order_dir);
            $this->tpl->parseCurrentBlock();
            $this->tpl->touchBlock("tbl_header_th");
        }
 
        $this->tpl->setCurrentBlock("tbl_header");
        $this->tpl->parseCurrentBlock();
    }
 
    protected function prepareOutput()
    {
    }
 
 
    public function determineOffsetAndOrder($a_omit_offset = false)
    {
        global $DIC;
 
        $ilUser = null;
        if (isset($DIC["ilUser"])) {
            $ilUser = $DIC["ilUser"];
        }
 
        if ($this->nav_determined) {
            return true;
        }
 
        if ($_POST[$this->getNavParameter() . "1"] != "") {
            if ($_POST[$this->getNavParameter() . "1"] != $_POST[$this->getNavParameter()]) {
                $this->nav_value = $_POST[$this->getNavParameter() . "1"];
            } elseif ($_POST[$this->getNavParameter() . "2"] != $_POST[$this->getNavParameter()]) {
                $this->nav_value = $_POST[$this->getNavParameter() . "2"];
            }
        } elseif ($_GET[$this->getNavParameter()]) {
            $this->nav_value = $_GET[$this->getNavParameter()];
        } elseif ($_SESSION[$this->getNavParameter()] != "") {
            $this->nav_value = $_SESSION[$this->getNavParameter()];
        }
 
        if ($this->nav_value == "" && $this->getId() != "" && $ilUser->getId() != ANONYMOUS_USER_ID) {
            $order = $this->loadProperty("order");
            if (in_array($order, $this->sortable_fields)) {
                $direction = $this->loadProperty("direction");
            } else {
                $direction = $this->getDefaultOrderDirection();
            }
            // get order and direction from db
            $this->nav_value =
                $order . ":" .
                $direction . ":" .
                $this->loadProperty("offset");
        }
        $nav = explode(":", $this->nav_value);
 
        // $nav[0] is order by
        $this->setOrderField(($nav[0] != "") ? $nav[0] : $this->getDefaultOrderField());
        $this->setOrderDirection(($nav[1] != "") ? $nav[1] : $this->getDefaultOrderDirection());
 
        if (!$a_omit_offset) {
            // #8904: offset must be discarded when no limit is given
            if (!$this->getExternalSegmentation() && $this->limit_determined && $this->limit == 9999) {
                $this->resetOffset(true);
            } elseif (!$this->getExternalSegmentation() && $nav[2] >= $this->max_count) {
                $this->resetOffset(true);
            } else {
                $this->setOffset($nav[2]);
            }
        }
 
        if (!$a_omit_offset) {
            $this->nav_determined = true;
        }
    }
 
    public function storeNavParameter()
    {
        if ($this->getOrderField() != "") {
            $this->storeProperty("order", $this->getOrderField());
        }
        if ($this->getOrderDirection() != "") {
            $this->storeProperty("direction", $this->getOrderDirection());
        }
        //echo "-".$this->getOffset()."-";
        if ($this->getOffset() !== "") {
            $this->storeProperty("offset", $this->getOffset());
        }
    }
 
 
    public function getHTML()
    {
        global $DIC;
 
        $ilUser = null;
        if (isset($DIC["ilUser"])) {
            $ilUser = $DIC["ilUser"];
        }
 
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
 
 
        if ($this->getExportMode()) {
            $this->exportData($this->getExportMode(), true);
        }
 
        $this->prepareOutput();
 
        if (is_object($ilCtrl) && $this->getId() == "") {
            $ilCtrl->saveParameter($this->getParentObject(), $this->getNavParameter());
        }
 
        if (!$this->getPrintMode()) {
            // set form action
            if ($this->form_action != "" && $this->getOpenFormTag()) {
                $hash = "";
                if (is_object($ilUser) && $ilUser->getPref("screen_reader_optimization")) {
                    $hash = "#" . $this->getTopAnchor();
                }
 
                if ((bool) $this->form_multipart) {
                    $this->tpl->touchBlock("form_multipart_bl");
                }
 
                if ($this->getPreventDoubleSubmission()) {
                    $this->tpl->touchBlock("pdfs");
                }
 
                $this->tpl->setCurrentBlock("tbl_form_header");
                $this->tpl->setVariable("FORMACTION", $this->getFormAction() . $hash);
                $this->tpl->setVariable("FORMNAME", $this->getFormName());
                $this->tpl->parseCurrentBlock();
            }
 
            if ($this->form_action != "" && $this->getCloseFormTag()) {
                $this->tpl->touchBlock("tbl_form_footer");
            }
        }
 
        if (!$this->enabled['content']) {
            return $this->render();
        }
 
        if (!$this->getExternalSegmentation()) {
            $this->setMaxCount(count($this->row_data));
        }
 
        $this->determineOffsetAndOrder();
 
        $this->setFooter("tblfooter", $this->lng->txt("previous"), $this->lng->txt("next"));
 
        $data = $this->getData();
        if ($this->dataExists()) {
            // sort
            if (!$this->getExternalSorting() && $this->enabled["sort"]) {
                $data = ilUtil::sortArray(
                    $data,
                    $this->getOrderField(),
                    $this->getOrderDirection(),
                    $this->numericOrdering($this->getOrderField())
                );
            }
 
            // slice
            if (!$this->getExternalSegmentation()) {
                $data = array_slice($data, $this->getOffset(), $this->getLimit());
            }
        }
 
        // fill rows
        if ($this->dataExists()) {
            if ($this->getPrintMode()) {
                ilDatePresentation::setUseRelativeDates(false);
            }
 
            $this->tpl->addBlockFile(
                "TBL_CONTENT",
                "tbl_content",
                $this->row_template,
                $this->row_template_dir
            );
 
            foreach ($data as $set) {
                $this->tpl->setCurrentBlock("tbl_content");
                $this->css_row = ($this->css_row != "tblrow1")
                    ? "tblrow1"
                    : "tblrow2";
                $this->tpl->setVariable("CSS_ROW", $this->css_row);
 
                $this->fillRow($set);
                $this->tpl->setCurrentBlock("tbl_content");
                $this->tpl->parseCurrentBlock();
            }
        } else {
            // add standard no items text (please tell me, if it messes something up, alex, 29.8.2008)
            $no_items_text = (trim($this->getNoEntriesText()) != '')
                ? $this->getNoEntriesText()
                : $lng->txt("no_items");
 
            $this->css_row = ($this->css_row != "tblrow1")
                    ? "tblrow1"
                    : "tblrow2";
 
            $this->tpl->setCurrentBlock("tbl_no_entries");
            $this->tpl->setVariable('TBL_NO_ENTRY_CSS_ROW', $this->css_row);
            $this->tpl->setVariable('TBL_NO_ENTRY_COLUMN_COUNT', $this->column_count);
            $this->tpl->setVariable('TBL_NO_ENTRY_TEXT', trim($no_items_text));
            $this->tpl->parseCurrentBlock();
        }
 
 
        if (!$this->getPrintMode()) {
            $this->fillFooter();
 
            $this->fillHiddenRow();
 
            $this->fillActionRow();
 
            $this->storeNavParameter();
        }
 
        return $this->render();
    }
 
    public function numericOrdering($a_field)
    {
        return false;
    }
 
    public function render()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
 
        $this->tpl->setVariable("CSS_TABLE", $this->getStyle("table"));
        //$this->tpl->setVariable("DATA_TABLE", (int) $this->getIsDataTable());
        if ($this->getId() != "") {
            $this->tpl->setVariable("ID", 'id="' . $this->getId() . '"');
        }
 
        // description
        if ($this->getDescription() != "") {
            $this->tpl->setCurrentBlock("tbl_header_description");
            $this->tpl->setVariable("TBL_DESCRIPTION", $this->getDescription());
            $this->tpl->parseCurrentBlock();
        }
 
        if (!$this->getPrintMode()) {
            $this->renderFilter();
        }
 
        if ($this->getDisplayAsBlock()) {
            $this->tpl->touchBlock("outer_start_1");
            $this->tpl->touchBlock("outer_end_1");
        } else {
            $this->tpl->touchBlock("outer_start_2");
            $this->tpl->touchBlock("outer_end_2");
        }
 
        // table title and icon
        if ($this->enabled["title"] && ($this->title != ""
            || $this->icon != "" || count($this->header_commands) > 0 ||
            $this->headerHTML != "" || $this->close_command != "")) {
            if ($this->enabled["icon"]) {
                $this->tpl->setCurrentBlock("tbl_header_title_icon");
                $this->tpl->setVariable("TBL_TITLE_IMG", ilUtil::getImagePath($this->icon));
                $this->tpl->setVariable("TBL_TITLE_IMG_ALT", $this->icon_alt);
                $this->tpl->parseCurrentBlock();
            }
 
            if (!$this->getPrintMode()) {
                foreach ($this->header_commands as $command) {
                    if ($command["img"] != "") {
                        $this->tpl->setCurrentBlock("tbl_header_img_link");
                        if ($command["target"] != "") {
                            $this->tpl->setVariable(
                                "TARGET_IMG_LINK",
                                'target="' . $command["target"] . '"'
                            );
                        }
                        $this->tpl->setVariable("ALT_IMG_LINK", $command["text"]);
                        $this->tpl->setVariable("HREF_IMG_LINK", $command["href"]);
                        $this->tpl->setVariable(
                            "SRC_IMG_LINK",
                            $command["img"]
                        );
                        $this->tpl->parseCurrentBlock();
                    } else {
                        $this->tpl->setCurrentBlock("head_cmd");
                        $this->tpl->setVariable("TXT_HEAD_CMD", $command["text"]);
                        $this->tpl->setVariable("HREF_HEAD_CMD", $command["href"]);
                        $this->tpl->parseCurrentBlock();
                    }
                }
            }
 
            if (isset($this->headerHTML)) {
                $this->tpl->setCurrentBlock("tbl_header_html");
                $this->tpl->setVariable("HEADER_HTML", $this->headerHTML);
                $this->tpl->parseCurrentBlock();
            }
 
            // close command
            if ($this->close_command != "") {
                $this->tpl->setCurrentBlock("tbl_header_img_link");
                $this->tpl->setVariable("ALT_IMG_LINK", $lng->txt("close"));
                $this->tpl->setVariable("HREF_IMG_LINK", $this->close_command);
                $this->tpl->parseCurrentBlock();
            }
 
            $this->tpl->setCurrentBlock("tbl_header_title");
            $this->tpl->setVariable("TBL_TITLE", $this->title);
            $this->tpl->setVariable("TOP_ANCHOR", $this->getTopAnchor());
            if ($this->getDisplayAsBlock()) {
                $this->tpl->setVariable("BLK_CLASS", "Block");
            }
            $this->tpl->parseCurrentBlock();
        }
 
        // table header
        if ($this->enabled["header"]) {
            $this->fillHeader();
        }
 
        $this->tpl->touchBlock("tbl_table_end");
 
        return $this->tpl->get();
    }
 
    private function renderFilter()
    {
        global $DIC;
 
        $lng = $this->lng;
        $main_tpl = $DIC["tpl"];
 
        $filter = $this->getFilterItems();
        $opt_filter = $this->getFilterItems(true);
 
        $main_tpl->addJavascript("./Services/Table/js/ServiceTable.js");
 
        if (count($filter) == 0 && count($opt_filter) == 0) {
            return;
        }
 
        include_once("./Services/YUI/classes/class.ilYuiUtil.php");
        ilYuiUtil::initConnection();
 
        $ccnt = 0;
 
        // render standard filter
        if (count($filter) > 0) {
            foreach ($filter as $item) {
                if ($ccnt >= $this->getFilterCols()) {
                    $this->tpl->setCurrentBlock("filter_row");
                    $this->tpl->parseCurrentBlock();
                    $ccnt = 0;
                }
                $this->tpl->setCurrentBlock("filter_item");
                $this->tpl->setVariable(
                    "OPTION_NAME",
                    $item->getTitle()
                );
                $this->tpl->setVariable(
                    "F_INPUT_ID",
                    $item->getTableFilterLabelFor()
                );
                $this->tpl->setVariable(
                    "INPUT_HTML",
                    $item->getTableFilterHTML()
                );
                $this->tpl->parseCurrentBlock();
                $ccnt++;
            }
        }
 
        // render optional filter
        if (count($opt_filter) > 0) {
            $this->determineSelectedFilters();
 
            foreach ($opt_filter as $item) {
                if ($this->isFilterSelected($item->getPostVar())) {
                    if ($ccnt >= $this->getFilterCols()) {
                        $this->tpl->setCurrentBlock("filter_row");
                        $this->tpl->parseCurrentBlock();
                        $ccnt = 0;
                    }
                    $this->tpl->setCurrentBlock("filter_item");
                    $this->tpl->setVariable(
                        "OPTION_NAME",
                        $item->getTitle()
                    );
                    $this->tpl->setVariable(
                        "F_INPUT_ID",
                        $item->getFieldId()
                    );
                    $this->tpl->setVariable(
                        "INPUT_HTML",
                        $item->getTableFilterHTML()
                    );
                    $this->tpl->parseCurrentBlock();
                    $ccnt++;
                }
            }
 
            // filter selection
            $items = array();
            foreach ($opt_filter as $item) {
                $k = $item->getPostVar();
                $items[$k] = array("txt" => $item->getTitle(),
                    "selected" => $this->isFilterSelected($k));
            }
 
            include_once("./Services/UIComponent/CheckboxListOverlay/classes/class.ilCheckboxListOverlayGUI.php");
            $cb_over = new ilCheckboxListOverlayGUI("tbl_filters_" . $this->getId());
            $cb_over->setLinkTitle($lng->txt("optional_filters"));
            $cb_over->setItems($items);
 
            $cb_over->setFormCmd($this->getParentCmd());
            $cb_over->setFieldVar("tblff" . $this->getId());
            $cb_over->setHiddenVar("tblfsf" . $this->getId());
 
            $cb_over->setSelectionHeaderClass("ilTableMenuItem");
            $this->tpl->setCurrentBlock("filter_select");
 
            // apply should be the first submit because of enter/return, inserting hidden submit
            $this->tpl->setVariable("HIDDEN_CMD_APPLY", $this->filter_cmd);
 
            $this->tpl->setVariable("FILTER_SELECTOR", $cb_over->getHTML(false));
            $this->tpl->parseCurrentBlock();
        }
 
        // if any filter
        if ($ccnt > 0 || count($opt_filter) > 0) {
            $this->tpl->setVariable("TXT_FILTER", $lng->txt("filter"));
 
            if ($ccnt > 0) {
                if ($ccnt < $this->getFilterCols()) {
                    for ($i = $ccnt; $i <= $this->getFilterCols(); $i++) {
                        $this->tpl->touchBlock("filter_empty_cell");
                    }
                }
                $this->tpl->setCurrentBlock("filter_row");
                $this->tpl->parseCurrentBlock();
 
                $this->tpl->setCurrentBlock("filter_buttons");
                $this->tpl->setVariable("CMD_APPLY", $this->filter_cmd);
                $this->tpl->setVariable("TXT_APPLY", $this->filter_cmd_txt
                    ? $this->filter_cmd_txt
                    : $lng->txt("apply_filter"));
                $this->tpl->setVariable("CMD_RESET", $this->reset_cmd);
                $this->tpl->setVariable("TXT_RESET", $this->reset_cmd_txt
                    ? $this->reset_cmd_txt
                    : $lng->txt("reset_filter"));
            } elseif (count($opt_filter) > 0) {
                $this->tpl->setCurrentBlock("optional_filter_hint");
                $this->tpl->setVariable('TXT_OPT_HINT', $lng->txt('optional_filter_hint'));
                $this->tpl->parseCurrentBlock();
            }
 
            $this->tpl->setCurrentBlock("filter_section");
            $this->tpl->setVariable("FIL_ID", $this->getId());
            $this->tpl->parseCurrentBlock();
 
            // (keep) filter hidden?
            if (!$this->isFilterVisible()) {
                if (!$this->getDisableFilterHiding()) {
                    $this->tpl->setCurrentBlock("filter_hidden");
                    $this->tpl->setVariable("FI_ID", $this->getId());
                    $this->tpl->parseCurrentBlock();
                }
            }
        }
    }
 
    protected function isFilterVisible()
    {
        $prop = $this->loadProperty('filter');
        if ($prop === '0' || $prop === '1') {
            return (bool) $prop;
        }
        return $this->getDefaultFilterVisibility();
    }
    
    protected function isAdvMDFilter(ilAdvancedMDRecordGUI $a_gui, $a_element)
    {
        foreach ($a_gui->getFilterElements(false) as $item) {
            if ($item === $a_element) {
                return true;
            }
        }
        return false;
    }
 
    public function writeFilterToSession()
    {
        $advmd_record_gui = null;
        if (method_exists($this, "getAdvMDRecordGUI")) {
            $advmd_record_gui = $this->getAdvMDRecordGUI();
        }
 
        foreach ($this->getFilterItems() as $item) {
            if ($advmd_record_gui &&
                $this->isAdvMDFilter($advmd_record_gui, $item)) {
                continue;
            }
 
            if ($item->checkInput()) {
                $item->setValueByArray($_POST);
                $item->writeToSession();
            }
        }
        foreach ($this->getFilterItems(true) as $item) {
            if ($advmd_record_gui &&
                $this->isAdvMDFilter($advmd_record_gui, $item)) {
                continue;
            }
 
            if ($item->checkInput()) {
                $item->setValueByArray($_POST);
                $item->writeToSession();
            }
        }
 
        if ($advmd_record_gui) {
            $advmd_record_gui->importFilter();
        }
 
        // #13209
        unset($_REQUEST["tbltplcrt"]);
        unset($_REQUEST["tbltpldel"]);
    }
 
    public function resetFilter()
    {
        $lng = $this->lng;
 
        $filter = $this->getFilterItems();
        $opt_filter = $this->getFilterItems(true);
 
        foreach ($filter as $item) {
            if ($item->checkInput()) {
                // see #26490
                $item->setValueByArray([]);
                $item->clearFromSession();
            }
        }
        foreach ($opt_filter as $item) {
            if ($item->checkInput()) {
                // see #26490
                $item->setValueByArray([]);
                $item->clearFromSession();
            }
        }
 
        // #13209
        unset($_REQUEST["tbltplcrt"]);
        unset($_REQUEST["tbltpldel"]);
    }
 
    protected function fillRow($a_set)
    {
        foreach ($a_set as $key => $value) {
            $this->tpl->setVariable("VAL_" . strtoupper($key), $value);
        }
    }
 
    public function fillFooter()
    {
        global $DIC;
 
        $ilUser = null;
        if (isset($DIC["ilUser"])) {
            $ilUser = $DIC["ilUser"];
        }
 
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
 
        $footer = false;
 
        // select all checkbox
        if ((strlen($this->getFormName())) && (strlen($this->getSelectAllCheckbox())) && $this->dataExists()) {
            $this->tpl->setCurrentBlock("select_all_checkbox");
            $this->tpl->setVariable("SELECT_ALL_TXT_SELECT_ALL", $lng->txt("select_all"));
            $this->tpl->setVariable("SELECT_ALL_CHECKBOX_NAME", $this->getSelectAllCheckbox());
            $this->tpl->setVariable("SELECT_ALL_FORM_NAME", $this->getFormName());
            $this->tpl->setVariable("CHECKBOXNAME", "chb_select_all_" . $this->unique_id);
            $this->tpl->parseCurrentBlock();
        }
 
        // table footer numinfo
        if ($this->enabled["numinfo"] && $this->enabled["footer"]) {
            $start = $this->offset + 1;                         // compute num info
            if (!$this->dataExists()) {
                $start = 0;
            }
            $end = $this->offset + $this->limit;
 
            if ($end > $this->max_count or $this->limit == 0) {
                $end = $this->max_count;
            }
 
            if ($this->max_count > 0) {
                if ($this->lang_support) {
                    $numinfo = "(" . $start . " - " . $end . " " . strtolower($this->lng->txt("of")) . " " . $this->max_count . ")";
                } else {
                    $numinfo = "(" . $start . " - " . $end . " of " . $this->max_count . ")";
                }
            }
            if ($this->max_count > 0) {
                if ($this->getEnableNumInfo()) {
                    $this->tpl->setCurrentBlock("tbl_footer_numinfo");
                    $this->tpl->setVariable("NUMINFO", $numinfo);
                    $this->tpl->parseCurrentBlock();
                }
            }
            $footer = true;
        }
 
        // table footer linkbar
        if ($this->enabled["linkbar"] && $this->enabled["footer"] && $this->limit != 0
             && $this->max_count > 0) {
            $layout = array(
                            "link" => $this->footer_style,
                            "prev" => $this->footer_previous,
                            "next" => $this->footer_next,
                            );
            //if (!$this->getDisplayAsBlock())
            //{
            $linkbar = $this->getLinkbar("1");
            $this->tpl->setCurrentBlock("tbl_footer_linkbar");
            $this->tpl->setVariable("LINKBAR", $linkbar);
            $this->tpl->parseCurrentBlock();
            $linkbar = true;
            //}
            $footer = true;
        }
 
        // column selector
        if (is_array($this->getSelectableColumns()) && count($this->getSelectableColumns()) > 0) {
            $items = array();
            foreach ($this->getSelectableColumns() as $k => $c) {
                $items[$k] = array("txt" => $c["txt"],
                    "selected" => $this->isColumnSelected($k));
            }
            include_once("./Services/UIComponent/CheckboxListOverlay/classes/class.ilCheckboxListOverlayGUI.php");
            $cb_over = new ilCheckboxListOverlayGUI("tbl_" . $this->getId());
            $cb_over->setLinkTitle($lng->txt("columns"));
            $cb_over->setItems($items);
            //$cb_over->setUrl("./ilias.php?baseClass=ilTablePropertiesStorage&table_id=".
            //          $this->getId()."&cmd=saveSelectedFields&user_id=".$ilUser->getId());
            $cb_over->setFormCmd($this->getParentCmd());
            $cb_over->setFieldVar("tblfs" . $this->getId());
            $cb_over->setHiddenVar("tblfsh" . $this->getId());
            $cb_over->setSelectionHeaderClass("ilTableMenuItem");
            $column_selector = $cb_over->getHTML();
            $footer = true;
        }
 
        if ($this->getShowTemplates() && is_object($ilUser)) {
            // template handling
            if (isset($_REQUEST["tbltplcrt"]) && $_REQUEST["tbltplcrt"]) {
                if ($this->saveTemplate($_REQUEST["tbltplcrt"])) {
                    ilUtil::sendSuccess($lng->txt("tbl_template_created"));
                }
            } elseif (isset($_REQUEST["tbltpldel"]) && $_REQUEST["tbltpldel"]) {
                if ($this->deleteTemplate($_REQUEST["tbltpldel"])) {
                    ilUtil::sendSuccess($lng->txt("tbl_template_deleted"));
                }
            }
 
            $create_id = "template_create_overlay_" . $this->getId();
            $delete_id = "template_delete_overlay_" . $this->getId();
            $list_id = "template_stg_" . $this->getId();
 
            include_once("./Services/Table/classes/class.ilTableTemplatesStorage.php");
            $storage = new ilTableTemplatesStorage();
            $templates = $storage->getNames($this->getContext(), $ilUser->getId());
 
            include_once("./Services/UIComponent/Overlay/classes/class.ilOverlayGUI.php");
 
            // form to delete template
            if (sizeof($templates)) {
                $overlay = new ilOverlayGUI($delete_id);
                $overlay->setTrigger($list_id . "_delete");
                $overlay->setAnchor("ilAdvSelListAnchorElement_" . $list_id);
                $overlay->setAutoHide(false);
                $overlay->add();
 
                $lng->loadLanguageModule("form");
                $this->tpl->setCurrentBlock("template_editor_delete_item");
                $this->tpl->setVariable("TEMPLATE_DELETE_OPTION_VALUE", "");
                $this->tpl->setVariable("TEMPLATE_DELETE_OPTION", "- " . $lng->txt("form_please_select") . " -");
                $this->tpl->parseCurrentBlock();
                foreach ($templates as $name) {
                    $this->tpl->setVariable("TEMPLATE_DELETE_OPTION_VALUE", $name);
                    $this->tpl->setVariable("TEMPLATE_DELETE_OPTION", $name);
                    $this->tpl->parseCurrentBlock();
                }
 
                $this->tpl->setCurrentBlock("template_editor_delete");
                $this->tpl->setVariable("TEMPLATE_DELETE_ID", $delete_id);
                $this->tpl->setVariable("TXT_TEMPLATE_DELETE", $lng->txt("tbl_template_delete"));
                $this->tpl->setVariable("TXT_TEMPLATE_DELETE_SUBMIT", $lng->txt("delete"));
                $this->tpl->setVariable("TEMPLATE_DELETE_CMD", $this->parent_cmd);
                $this->tpl->parseCurrentBlock();
            }
 
 
            // form to save new template
            $overlay = new ilOverlayGUI($create_id);
            $overlay->setTrigger($list_id . "_create");
            $overlay->setAnchor("ilAdvSelListAnchorElement_" . $list_id);
            $overlay->setAutoHide(false);
            $overlay->add();
 
            $this->tpl->setCurrentBlock("template_editor");
            $this->tpl->setVariable("TEMPLATE_CREATE_ID", $create_id);
            $this->tpl->setVariable("TXT_TEMPLATE_CREATE", $lng->txt("tbl_template_create"));
            $this->tpl->setVariable("TXT_TEMPLATE_CREATE_SUBMIT", $lng->txt("save"));
            $this->tpl->setVariable("TEMPLATE_CREATE_CMD", $this->parent_cmd);
            $this->tpl->parseCurrentBlock();
 
            // load saved template
            include_once("./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php");
            $alist = new ilAdvancedSelectionListGUI();
            $alist->setId($list_id);
            $alist->addItem($lng->txt("tbl_template_create"), "create", "#");
            if (sizeof($templates)) {
                $alist->addItem($lng->txt("tbl_template_delete"), "delete", "#");
                foreach ($templates as $name) {
                    $ilCtrl->setParameter($this->parent_obj, $this->prefix . "_tpl", urlencode($name));
                    $alist->addItem($name, $name, $ilCtrl->getLinkTarget($this->parent_obj, $this->parent_cmd));
                    $ilCtrl->setParameter($this->parent_obj, $this->prefix . "_tpl", "");
                }
            }
            $alist->setListTitle($lng->txt("tbl_templates"));
            $alist->setStyle(ilAdvancedSelectionListGUI::STYLE_LINK_BUTTON);
            $this->tpl->setVariable("TEMPLATE_SELECTOR", "&nbsp;" . $alist->getHTML());
        }
 
        if ($footer) {
            $this->tpl->setCurrentBlock("tbl_footer");
            $this->tpl->setVariable("COLUMN_COUNT", $this->getColumnCount());
            if ($this->getDisplayAsBlock()) {
                $this->tpl->setVariable("BLK_CLASS", "Block");
            }
            $this->tpl->parseCurrentBlock();
 
            // top navigation, if number info or linkbar given
            if ($numinfo != "" || $linkbar != "" || $column_selector != "" ||
                count($this->filters) > 0 || count($this->optional_filters) > 0) {
                if (is_object($ilUser) && (count($this->filters) || count($this->optional_filters))) {
                    $this->tpl->setCurrentBlock("filter_activation");
                    $this->tpl->setVariable("TXT_ACTIVATE_FILTER", $lng->txt("show_filter"));
                    $this->tpl->setVariable("FILA_ID", $this->getId());
                    if ($this->getId() != "") {
                        $this->tpl->setVariable("SAVE_URLA", "./ilias.php?baseClass=ilTablePropertiesStorage&table_id=" .
                            $this->getId() . "&cmd=showFilter&user_id=" . $ilUser->getId());
                    }
                    $this->tpl->parseCurrentBlock();
 
 
                    if (!$this->getDisableFilterHiding()) {
                        $this->tpl->setCurrentBlock("filter_deactivation");
                        $this->tpl->setVariable("TXT_HIDE", $lng->txt("hide_filter"));
                        if ($this->getId() != "") {
                            $this->tpl->setVariable("SAVE_URL", "./ilias.php?baseClass=ilTablePropertiesStorage&table_id=" .
                                $this->getId() . "&cmd=hideFilter&user_id=" . $ilUser->getId());
                            $this->tpl->setVariable("FILD_ID", $this->getId());
                        }
                        $this->tpl->parseCurrentBlock();
                    }
                }
 
                if ($numinfo != "" && $this->getEnableNumInfo()) {
                    $this->tpl->setCurrentBlock("top_numinfo");
                    $this->tpl->setVariable("NUMINFO", $numinfo);
                    $this->tpl->parseCurrentBlock();
                }
                if ($linkbar != "" && !$this->getDisplayAsBlock()) {
                    $linkbar = $this->getLinkbar("2");
                    $this->tpl->setCurrentBlock("top_linkbar");
                    $this->tpl->setVariable("LINKBAR", $linkbar);
                    $this->tpl->parseCurrentBlock();
                }
 
                // column selector
                $this->tpl->setVariable("COLUMN_SELECTOR", $column_selector);
 
                // row selector
                if ($this->getShowRowsSelector() &&
                    is_object($ilUser) &&
                    $this->getId() &&
                    !$this->rows_selector_off) { // JF, 2014-10-27
                    include_once("./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php");
                    $alist = new ilAdvancedSelectionListGUI();
                    $alist->setStyle(ilAdvancedSelectionListGUI::STYLE_LINK_BUTTON);
                    $alist->setId("sellst_rows_" . $this->getId());
                    $hpp = ($ilUser->getPref("hits_per_page") != 9999)
                        ? $ilUser->getPref("hits_per_page")
                        : $lng->txt("no_limit");
 
                    $options = array(0 => $lng->txt("default") . " (" . $hpp . ")",5 => 5, 10 => 10, 15 => 15, 20 => 20,
                                     30 => 30, 40 => 40, 50 => 50,
                                     100 => 100, 200 => 200, 400 => 400, 800 => 800);
                    foreach ($options as $k => $v) {
                        $ilCtrl->setParameter($this->parent_obj, $this->prefix . "_trows", $k);
                        $alist->addItem($v, $k, $ilCtrl->getLinkTarget($this->parent_obj, $this->parent_cmd));
                        $ilCtrl->setParameter($this->parent_obj, $this->prefix . "_trows", "");
                    }
                    $alist->setListTitle($this->getRowSelectorLabel() ? $this->getRowSelectorLabel() : $lng->txt("rows"));
                    $this->tpl->setVariable("ROW_SELECTOR", $alist->getHTML());
                }
 
                // export
                if (sizeof($this->export_formats) && $this->dataExists()) {
                    include_once("./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php");
                    $alist = new ilAdvancedSelectionListGUI();
                    $alist->setStyle(ilAdvancedSelectionListGUI::STYLE_LINK_BUTTON);
                    $alist->setId("sellst_xpt");
                    foreach ($this->export_formats as $format => $caption_lng_id) {
                        $ilCtrl->setParameter($this->parent_obj, $this->prefix . "_xpt", $format);
                        $url = $ilCtrl->getLinkTarget($this->parent_obj, $this->parent_cmd);
                        $ilCtrl->setParameter($this->parent_obj, $this->prefix . "_xpt", "");
                        $alist->addItem($lng->txt($caption_lng_id), $format, $url);
                    }
                    $alist->setListTitle($lng->txt("export"));
                    $this->tpl->setVariable("EXPORT_SELECTOR", "&nbsp;" . $alist->getHTML());
                }
 
                $this->tpl->setCurrentBlock("top_navigation");
                $this->tpl->setVariable("COLUMN_COUNT", $this->getColumnCount());
                if ($this->getDisplayAsBlock()) {
                    $this->tpl->setVariable("BLK_CLASS", "Block");
                }
                $this->tpl->parseCurrentBlock();
            }
        }
    }
 
    public function getLinkbar($a_num)
    {
        global $DIC;
 
        $ilUser = $DIC->user();
 
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
 
        $hash = "";
        if (is_object($ilUser) && $ilUser->getPref("screen_reader_optimization")) {
            $hash = "#" . $this->getTopAnchor();
        }
 
        $link = $ilCtrl->getLinkTargetByClass(get_class($this->parent_obj), $this->parent_cmd) .
            "&" . $this->getNavParameter() . "=" .
            $this->getOrderField() . ":" . $this->getOrderDirection() . ":";
 
        $LinkBar = "";
        $layout_prev = $lng->txt("previous");
        $layout_next = $lng->txt("next");
 
        // if more entries then entries per page -> show link bar
        if ($this->max_count > $this->getLimit() || $this->custom_prev_next) {
            $sep = "<span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>";
 
            // calculate number of pages
            $pages = intval($this->max_count / $this->getLimit());
 
            // add a page if a rest remains
            if (($this->max_count % $this->getLimit())) {
                $pages++;
            }
 
            // links to other pages
            $offset_arr = array();
            for ($i = 1 ;$i <= $pages ; $i++) {
                $newoffset = $this->getLimit() * ($i - 1);
 
                $nav_value = $this->getOrderField() . ":" . $this->getOrderDirection() . ":" . $newoffset;
                $offset_arr[$nav_value] = $i;
            }
 
            $sep = "<span>&nbsp;&nbsp;&nbsp;&nbsp;</span>";
 
            // previous link
            if ($this->custom_prev_next && $this->custom_prev != "") {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $LinkBar .= "<a href=\"" . $this->custom_prev . $hash . "\">" . $layout_prev . "</a>";
            } elseif ($this->getOffset() >= 1 && !$this->custom_prev_next) {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $prevoffset = $this->getOffset() - $this->getLimit();
                $LinkBar .= "<a href=\"" . $link . $prevoffset . $hash . "\">" . $layout_prev . "</a>";
            } else {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $LinkBar .= '<span class="ilTableFootLight">' . $layout_prev . "</span>";
            }
 
            // current value
            if ($a_num == "1") {
                $LinkBar .= '<input type="hidden" name="' . $this->getNavParameter() .
                    '" value="' . $this->getOrderField() . ":" . $this->getOrderDirection() . ":" . $this->getOffset() . '" />';
            }
 
            $sep = "<span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>";
 
            // show next link (if not last page)
            if ($this->custom_prev_next && $this->custom_next != "") {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $LinkBar .= "<a href=\"" . $this->custom_next . $hash . "\">" . $layout_next . "</a>";
            } elseif (!(($this->getOffset() / $this->getLimit()) == ($pages - 1)) && ($pages != 1) &&
                !$this->custom_prev_next) {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $newoffset = $this->getOffset() + $this->getLimit();
                $LinkBar .= "<a href=\"" . $link . $newoffset . $hash . "\">" . $layout_next . "</a>";
            } else {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $LinkBar .= '<span class="ilTableFootLight">' . $layout_next . "</span>";
            }
 
            $sep = "<span>&nbsp;&nbsp;&nbsp;&nbsp;</span>";
 
            if (count($offset_arr) && !$this->getDisplayAsBlock() && !$this->custom_prev_next) {
                if ($LinkBar != "") {
                    $LinkBar .= $sep;
                }
                $LinkBar .= "" .
                    '<label for="tab_page_sel_' . $a_num . '">' . $lng->txt("page") . '</label> ' .
                    ilUtil::formSelect(
                        $this->nav_value,
                        $this->getNavParameter() . $a_num,
                        $offset_arr,
                        false,
                        true,
                        0,
                        "small",
                        array("id" => "tab_page_sel_" . $a_num,
                        "onchange" => "ilTablePageSelection(this, 'cmd[" . $this->parent_cmd . "]')")
                    );
                //' <input class="submit" type="submit" name="cmd['.$this->parent_cmd.']" value="'.
                    //$lng->txt("ok").'" />';
            }
 
            return $LinkBar;
        } else {
            return false;
        }
    }
 
    public function fillHiddenRow()
    {
        $hidden_row = false;
        if (count($this->hidden_inputs)) {
            foreach ($this->hidden_inputs as $hidden_input) {
                $this->tpl->setCurrentBlock("tbl_hidden_field");
                $this->tpl->setVariable("FIELD_NAME", $hidden_input["name"]);
                $this->tpl->setVariable("FIELD_VALUE", $hidden_input["value"]);
                $this->tpl->parseCurrentBlock();
            }
 
            $this->tpl->setCurrentBlock("tbl_hidden_row");
            $this->tpl->parseCurrentBlock();
        }
    }
 
    public function fillActionRow()
    {
        $lng = $this->lng;
 
        // action row
        $action_row = false;
        $arrow = false;
 
        // add selection buttons
        if (count($this->sel_buttons) > 0) {
            foreach ($this->sel_buttons as $button) {
                $this->tpl->setCurrentBlock("sel_button");
                $this->tpl->setVariable(
                    "SBUTTON_SELECT",
                    ilUtil::formSelect(
                        $button["selected"],
                        $button["sel_var"],
                        $button["options"],
                        false,
                        true
                    )
                );
                $this->tpl->setVariable("SBTN_NAME", $button["cmd"]);
                $this->tpl->setVariable("SBTN_VALUE", $button["text"]);
                $this->tpl->parseCurrentBlock();
 
                if ($this->getTopCommands()) {
                    $this->tpl->setCurrentBlock("sel_top_button");
                    $this->tpl->setVariable(
                        "SBUTTON_SELECT",
                        ilUtil::formSelect(
                            $button["selected"],
                            $button["sel_var"],
                            $button["options"],
                            false,
                            true
                        )
                    );
                    $this->tpl->setVariable("SBTN_NAME", $button["cmd"]);
                    $this->tpl->setVariable("SBTN_VALUE", $button["text"]);
                    $this->tpl->parseCurrentBlock();
                }
            }
            $buttons = true;
            $action_row = true;
        }
        $this->sel_buttons[] = array("options" => $a_options, "cmd" => $a_cmd, "text" => $a_text);
 
        // add buttons
        if (count($this->buttons) > 0) {
            foreach ($this->buttons as $button) {
                if (!is_array($button)) {
                    if ($button instanceof ilButtonBase) {
                        $this->tpl->setVariable('BUTTON_OBJ', $button->render());
 
                        // this will remove id - should be unique
                        $button = clone $button;
 
                        $this->tpl->setVariable('BUTTON_TOP_OBJ', $button->render());
                    }
                    continue;
                }
 
                if (strlen($button['onclick'])) {
                    $this->tpl->setCurrentBlock('cmdonclick');
                    $this->tpl->setVariable('CMD_ONCLICK', $button['onclick']);
                    $this->tpl->parseCurrentBlock();
                }
                $this->tpl->setCurrentBlock("plain_button");
                if ($button["id"] != "") {
                    $this->tpl->setVariable("PBID", ' id="' . $button["id"] . '" ');
                }
                if ($button["class"] != "") {
                    $this->tpl->setVariable("PBBT_CLASS", ' ' . $button["class"]);
                }
                $this->tpl->setVariable("PBTN_NAME", $button["cmd"]);
                $this->tpl->setVariable("PBTN_VALUE", $button["text"]);
                $this->tpl->parseCurrentBlock();
 
                if ($this->getTopCommands()) {
                    if (strlen($button['onclick'])) {
                        $this->tpl->setCurrentBlock('top_cmdonclick');
                        $this->tpl->setVariable('CMD_ONCLICK', $button['onclick']);
                        $this->tpl->parseCurrentBlock();
                    }
                    $this->tpl->setCurrentBlock("plain_top_button");
                    $this->tpl->setVariable("PBTN_NAME", $button["cmd"]);
                    $this->tpl->setVariable("PBTN_VALUE", $button["text"]);
                    if ($button["class"] != "") {
                        $this->tpl->setVariable("PBBT_CLASS", ' ' . $button["class"]);
                    }
                    $this->tpl->parseCurrentBlock();
                }
            }
 
            $buttons = true;
            $action_row = true;
        }
 
        // multi selection
        if (count($this->mi_sel_buttons)) {
            foreach ($this->mi_sel_buttons as $button) {
                $this->tpl->setCurrentBlock("mi_sel_button");
                $this->tpl->setVariable(
                    "MI_BUTTON_SELECT",
                    ilUtil::formSelect(
                        $button["selected"],
                        $button["sel_var"],
                        $button["options"],
                        false,
                        true
                    )
                );
                $this->tpl->setVariable("MI_BTN_NAME", $button["cmd"]);
                $this->tpl->setVariable("MI_BTN_VALUE", $button["text"]);
                $this->tpl->parseCurrentBlock();
 
                if ($this->getTopCommands()) {
                    $this->tpl->setCurrentBlock("mi_top_sel_button");
                    $this->tpl->setVariable(
                        "MI_BUTTON_SELECT",
                        ilUtil::formSelect(
                            $button["selected"],
                            $button["sel_var"] . "_2",
                            $button["options"],
                            false,
                            true
                        )
                    );
                    $this->tpl->setVariable("MI_BTN_NAME", $button["cmd"]);
                    $this->tpl->setVariable("MI_BTN_VALUE", $button["text"]);
                    $this->tpl->parseCurrentBlock();
                }
            }
            $arrow = true;
            $action_row = true;
        }
 
 
        if (count($this->multi) > 1 && $this->dataExists()) {
            if ($this->enable_command_for_all && $this->max_count <= self::getAllCommandLimit()) {
                $this->tpl->setCurrentBlock("tbl_cmd_select_all");
                $this->tpl->setVariable("TXT_SELECT_CMD_ALL", $lng->txt("all_objects"));
                $this->tpl->parseCurrentBlock();
            }
 
            $this->tpl->setCurrentBlock("tbl_cmd_select");
            $sel = array();
            foreach ($this->multi as $mc) {
                $sel[$mc["cmd"]] = $mc["text"];
            }
            $this->tpl->setVariable(
                "SELECT_CMDS",
                ilUtil::formSelect("", "selected_cmd", $sel, false, true)
            );
            $this->tpl->setVariable("TXT_EXECUTE", $lng->txt("execute"));
            $this->tpl->parseCurrentBlock();
            $arrow = true;
            $action_row = true;
 
            if ($this->getTopCommands()) {
                if ($this->enable_command_for_all && $this->max_count <= self::getAllCommandLimit()) {
                    $this->tpl->setCurrentBlock("tbl_top_cmd_select_all");
                    $this->tpl->setVariable("TXT_SELECT_CMD_ALL", $lng->txt("all_objects"));
                    $this->tpl->parseCurrentBlock();
                }
 
                $this->tpl->setCurrentBlock("tbl_top_cmd_select");
                $sel = array();
                foreach ($this->multi as $mc) {
                    $sel[$mc["cmd"]] = $mc["text"];
                }
                $this->tpl->setVariable(
                    "SELECT_CMDS",
                    ilUtil::formSelect("", "selected_cmd2", $sel, false, true)
                );
                $this->tpl->setVariable("TXT_EXECUTE", $lng->txt("execute"));
                $this->tpl->parseCurrentBlock();
            }
        } elseif (count($this->multi) == 1 && $this->dataExists()) {
            $this->tpl->setCurrentBlock("tbl_single_cmd");
            $sel = array();
            foreach ($this->multi as $mc) {
                $cmd = $mc['cmd'];
                $txt = $mc['text'];
            }
            $this->tpl->setVariable("TXT_SINGLE_CMD", $txt);
            $this->tpl->setVariable("SINGLE_CMD", $cmd);
            $this->tpl->parseCurrentBlock();
            $arrow = true;
            $action_row = true;
 
            if ($this->getTopCommands()) {
                $this->tpl->setCurrentBlock("tbl_top_single_cmd");
                $sel = array();
                foreach ($this->multi as $mc) {
                    $cmd = $mc['cmd'];
                    $txt = $mc['text'];
                }
                $this->tpl->setVariable("TXT_SINGLE_CMD", $txt);
                $this->tpl->setVariable("SINGLE_CMD", $cmd);
                $this->tpl->parseCurrentBlock();
            }
        }
 
        if ($arrow) {
            $this->tpl->setCurrentBlock("tbl_action_img_arrow");
            $this->tpl->setVariable("IMG_ARROW", ilUtil::getImagePath("arrow_downright.svg"));
            $this->tpl->setVariable("ALT_ARROW", $lng->txt("action"));
            $this->tpl->parseCurrentBlock();
 
            if ($this->getTopCommands()) {
                $this->tpl->setCurrentBlock("tbl_top_action_img_arrow");
                $this->tpl->setVariable("IMG_ARROW", ilUtil::getImagePath("arrow_upright.svg"));
                $this->tpl->setVariable("ALT_ARROW", $lng->txt("action"));
                $this->tpl->parseCurrentBlock();
            }
        }
 
        if ($action_row) {
            $this->tpl->setCurrentBlock("tbl_action_row");
            $this->tpl->parseCurrentBlock();
            if ($this->getTopCommands()) {
                $this->tpl->setCurrentBlock("tbl_top_action_row");
                $this->tpl->parseCurrentBlock();
            }
        }
    }
 
    public function setHeaderHTML($html)
    {
        $this->headerHTML = $html;
    }
 
    public function storeProperty($type, $value)
    {
        global $DIC;
 
        $ilUser = null;
        if (isset($DIC["ilUser"])) {
            $ilUser = $DIC["ilUser"];
        }
 
        if (is_object($ilUser) && $this->getId() != "") {
            include_once("./Services/Table/classes/class.ilTablePropertiesStorage.php");
            $tab_prop = new ilTablePropertiesStorage();
 
            $tab_prop->storeProperty($this->getId(), $ilUser->getId(), $type, $value);
        }
    }
 
    public function loadProperty($type)
    {
        global $DIC;
 
        $ilUser = null;
        if (isset($DIC["ilUser"])) {
            $ilUser = $DIC["ilUser"];
        }
 
        if (is_object($ilUser) && $this->getId() != "") {
            include_once("./Services/Table/classes/class.ilTablePropertiesStorage.php");
            $tab_prop = new ilTablePropertiesStorage();
 
            return $tab_prop->getProperty($this->getId(), $ilUser->getId(), $type);
        }
        return null;
    }
 
    public function getCurrentState()
    {
        $this->determineOffsetAndOrder();
        $this->determineLimit();
        $this->determineSelectedColumns();
        $this->determineSelectedFilters();
 
        // "filter" show/hide is not saved
 
        $result = array();
        $result["order"] = $this->getOrderField();
        $result["direction"] = $this->getOrderDirection();
        $result["offset"] = $this->getOffset();
        $result["rows"] = $this->getLimit();
        $result["selfilters"] = $this->getSelectedFilters();
 
        // #9514 - $this->getSelectedColumns() will omit deselected, leading to
        // confusion on restoring template
        $result["selfields"] = $this->selected_column;
 
        // gather filter values
        if ($this->filters) {
            foreach ($this->filters as $item) {
                $result["filter_values"][$item->getFieldId()] = $this->getFilterValue($item);
            }
        }
        if ($this->optional_filters && $result["selfilters"]) {
            foreach ($this->optional_filters as $item) {
                if (in_array($item->getFieldId(), $result["selfilters"])) {
                    $result["filter_values"][$item->getFieldId()] = $this->getFilterValue($item);
                }
            }
        }
 
        return $result;
    }
 
    protected function getFilterValue(ilFormPropertyGUI $a_item)
    {
        if (method_exists($a_item, "getChecked")) {
            return $a_item->getChecked();
        } elseif (method_exists($a_item, "getValue")) {
            return $a_item->getValue();
        } elseif (method_exists($a_item, "getDate")) {
            return $a_item->getDate()->get(IL_CAL_DATE);
        }
    }
 
    protected function SetFilterValue(ilFormPropertyGUI $a_item, $a_value)
    {
        if (method_exists($a_item, "setChecked")) {
            $a_item->setChecked($a_value);
        } elseif (method_exists($a_item, "setValue")) {
            $a_item->setValue($a_value);
        } elseif (method_exists($a_item, "setDate")) {
            $a_item->setDate(new ilDate($a_value, IL_CAL_DATE));
        }
        $a_item->writeToSession();
    }
 
    public function setContext($id)
    {
        if (trim($id)) {
            $this->context = $id;
        }
    }
 
    public function getContext()
    {
        return $this->context;
    }
 
    public function setShowRowsSelector($a_value)
    {
        $this->show_rows_selector = (bool) $a_value;
    }
 
    public function getShowRowsSelector()
    {
        return $this->show_rows_selector;
    }
 
    public function setShowTemplates($a_value)
    {
        $this->show_templates = (bool) $a_value;
    }
 
    public function getShowTemplates()
    {
        return $this->show_templates;
    }
 
    public function restoreTemplate($a_name)
    {
        global $DIC;
 
        $ilUser = $DIC->user();
 
        $a_name = ilUtil::stripSlashes($a_name);
 
        if (trim($a_name) && $this->getContext() != "" && is_object($ilUser) && $ilUser->getId() != ANONYMOUS_USER_ID) {
            include_once("./Services/Table/classes/class.ilTableTemplatesStorage.php");
            $storage = new ilTableTemplatesStorage();
 
            $data = $storage->load($this->getContext(), $ilUser->getId(), $a_name);
            if (is_array($data)) {
                foreach ($data as $property => $value) {
                    $this->storeProperty($property, $value);
                }
            }
 
            $data["filter_values"] = unserialize($data["filter_values"]);
            if ($data["filter_values"]) {
                $this->restore_filter_values = $data["filter_values"];
            }
 
            $this->restore_filter = true;
 
            return true;
        }
        return false;
    }
 
    public function saveTemplate($a_name)
    {
        global $DIC;
 
        $ilUser = $DIC->user();
 
        $a_name = ilUtil::prepareFormOutput($a_name, true);
 
        if (trim($a_name) && $this->getContext() != "" && is_object($ilUser) && $ilUser->getId() != ANONYMOUS_USER_ID) {
            include_once("./Services/Table/classes/class.ilTableTemplatesStorage.php");
            $storage = new ilTableTemplatesStorage();
 
            $state = $this->getCurrentState();
            $state["filter_values"] = serialize($state["filter_values"]);
            $state["selfields"] = serialize($state["selfields"]);
            $state["selfilters"] = serialize($state["selfilters"]);
 
            $storage->store($this->getContext(), $ilUser->getId(), $a_name, $state);
            return true;
        }
        return false;
    }
 
    public function deleteTemplate($a_name)
    {
        global $DIC;
 
        $ilUser = $DIC->user();
 
        $a_name = ilUtil::prepareFormOutput($a_name, true);
 
        if (trim($a_name) && $this->getContext() != "" && is_object($ilUser) && $ilUser->getId() != ANONYMOUS_USER_ID) {
            include_once("./Services/Table/classes/class.ilTableTemplatesStorage.php");
            $storage = new ilTableTemplatesStorage();
            $storage->delete($this->getContext(), $ilUser->getId(), $a_name);
            return true;
        }
        return false;
    }
 
    public function getLimit()
    {
        if ($this->getExportMode() || $this->getPrintMode()) {
            return 9999;
        }
        return parent::getLimit();
    }
 
    public function getOffset()
    {
        if ($this->getExportMode() || $this->getPrintMode()) {
            return 0;
        }
        return parent::getOffset();
    }
 
    public function setExportFormats(array $formats)
    {
        $this->export_formats = array();
 
        // #11339
        $valid = array(self::EXPORT_EXCEL => "tbl_export_excel",
            self::EXPORT_CSV => "tbl_export_csv");
 
        foreach ($formats as $format) {
            if (array_key_exists($format, $valid)) {
                $this->export_formats[$format] = $valid[$format];
            }
        }
    }
 
    public function setPrintMode($a_value = false)
    {
        $this->print_mode = (bool) $a_value;
    }
 
    public function getPrintMode()
    {
        return $this->print_mode;
    }
 
    public function getExportMode()
    {
        return $this->export_mode;
    }
 
    public function exportData($format, $send = false)
    {
        if ($this->dataExists()) {
            // #9640: sort
            if (!$this->getExternalSorting() && $this->enabled["sort"]) {
                $this->determineOffsetAndOrder(true);
 
                $this->row_data = ilUtil::sortArray(
                    $this->row_data,
                    $this->getOrderField(),
                    $this->getOrderDirection(),
                    $this->numericOrdering($this->getOrderField())
                );
            }
 
            $filename = "export";
 
            switch ($format) {
                case self::EXPORT_EXCEL:
                    include_once "./Services/Excel/classes/class.ilExcel.php";
                    $excel = new ilExcel();
                    $excel->addSheet($this->title
                        ? $this->title
                        : $this->lng->txt("export"));
                    $row = 1;
 
                    ob_start();
                    $this->fillMetaExcel($excel, $row); // row must be increment in fillMetaExcel()! (optional method)
 
                    // #14813
                    $pre = $row;
                    $this->fillHeaderExcel($excel, $row); // row should NOT be incremented in fillHeaderExcel()! (required method)
                    if ($pre == $row) {
                        $row++;
                    }
 
                    foreach ($this->row_data as $set) {
                        $this->fillRowExcel($excel, $row, $set);
                        $row++; // #14760
                    }
                    ob_end_clean();
 
                    if ($send) {
                        $excel->sendToClient($filename);
                    } else {
                        $excel->writeToFile($filename);
                    }
                    break;
 
                case self::EXPORT_CSV:
                    include_once "./Services/Utilities/classes/class.ilCSVWriter.php";
                    $csv = new ilCSVWriter();
                    $csv->setSeparator(";");
 
                    ob_start();
                    $this->fillMetaCSV($csv);
                    $this->fillHeaderCSV($csv);
                    foreach ($this->row_data as $set) {
                        $this->fillRowCSV($csv, $set);
                    }
                    ob_end_clean();
 
                    if ($send) {
                        $filename .= ".csv";
                        header("Content-type: text/comma-separated-values");
                        header("Content-Disposition: attachment; filename=\"" . $filename . "\"");
                        header("Expires: 0");
                        header("Cache-Control: must-revalidate, post-check=0,pre-check=0");
                        header("Pragma: public");
                        echo $csv->getCSVString();
                    } else {
                        file_put_contents($filename, $csv->getCSVString());
                    }
                    break;
            }
 
            if ($send) {
                exit();
            }
        }
    }
 
    protected function fillMetaExcel(ilExcel $a_excel, &$a_row)
    {
    }
 
    protected function fillHeaderExcel(ilExcel $a_excel, &$a_row)
    {
        $col = 0;
        foreach ($this->column as $column) {
            $title = strip_tags($column["text"]);
            if ($title) {
                $a_excel->setCell($a_row, $col++, $title);
            }
        }
        $a_excel->setBold("A" . $a_row . ":" . $a_excel->getColumnCoord($col - 1) . $a_row);
    }
 
    protected function fillRowExcel(ilExcel $a_excel, &$a_row, $a_set)
    {
        $col = 0;
        foreach ($a_set as $value) {
            if (is_array($value)) {
                $value = implode(', ', $value);
            }
            $a_excel->setCell($a_row, $col++, $value);
        }
    }
 
    protected function fillMetaCSV($a_csv)
    {
    }
 
    protected function fillHeaderCSV($a_csv)
    {
        foreach ($this->column as $column) {
            $title = strip_tags($column["text"]);
            if ($title) {
                $a_csv->addColumn($title);
            }
        }
        $a_csv->addRow();
    }
 
    protected function fillRowCSV($a_csv, $a_set)
    {
        foreach ($a_set as $key => $value) {
            if (is_array($value)) {
                $value = implode(', ', $value);
            }
            $a_csv->addColumn(strip_tags($value));
        }
        $a_csv->addRow();
    }
 
    public function setEnableAllCommand($a_value)
    {
        $this->enable_command_for_all = (bool) $a_value;
    }
 
    public static function getAllCommandLimit()
    {
        global $DIC;
 
        $ilClientIniFile = $DIC["ilClientIniFile"];
 
        $limit = $ilClientIniFile->readVariable("system", "TABLE_ACTION_ALL_LIMIT");
        if (!$limit) {
            $limit = self::ACTION_ALL_LIMIT;
        }
 
        return $limit;
    }
 
    public function setRowSelectorLabel($row_selector_label)
    {
        $this->row_selector_label = $row_selector_label;
        return $this;
    }
 
    public function getRowSelectorLabel()
    {
        return $this->row_selector_label;
    }
 
    public function setPreventDoubleSubmission($a_val)
    {
        $this->prevent_double_submission = $a_val;
    }
 
    public function getPreventDoubleSubmission()
    {
        return $this->prevent_double_submission;
    }
 
    public function setLimit($a_limit = 0, $a_default_limit = 0)
    {
        parent::setLimit($a_limit, $a_default_limit);
 
        // #17077 - if limit is set "manually" to 9999, force rows selector off
        if ($a_limit == 9999 &&
            $this->limit_determined) {
            $this->rows_selector_off = true;
        }
    }
}