Inheritance diagram for ilDataCollectionRecordListTableGUI:

Collaboration diagram for ilDataCollectionRecordListTableGUI:

Public Member Functions
	getFilter ()
	@description Return array of fields that are currently stored in the filter. More...

	setRecordData ($data)

	fillHeaderExcel ($worksheet, &$row)

	numericOrdering ($field)
	Should this field be sorted numeric? More...

	sortByNComments ($a, $b)

	fillRowExcel ($worksheet, &$row, $record)

	initFilter ()
	Init filter. More...

	loadProperty ($type)

Public Member Functions inherited from ilTable2GUI
	__construct ($a_parent_obj, $a_parent_cmd="", $a_template_context="")
	Constructor. More...

	setOpenFormTag ($a_val)
	Set open form tag. More...

	getOpenFormTag ()
	Get open form tag. More...

	setCloseFormTag ($a_val)
	Set close form tag. More...

	getCloseFormTag ()
	Get close form tag. More...

	determineLimit ()
	Determine the limit. More...

	getSelectableColumns ()
	Get selectable columns. More...

	determineSelectedColumns ()
	Determine selected columns. More...

	isColumnSelected ($a_col)
	Is given column selected? More...

	getSelectedColumns ()
	Get selected columns. More...

&	executeCommand ()
	Execute command. More...

	resetOffset ($a_in_determination=false)
	Reset offset. More...

	initFilter ()
	Init filter. More...

	getParentObject ()
	Get parent object. More...

	getParentCmd ()
	Get parent command. More...

	setTopAnchor ($a_val)
	Set top anchor. More...

	getTopAnchor ()
	Get top anchor. More...

	setNoEntriesText ($a_text)
	Set text for an empty table. More...

	getNoEntriesText ()
	Get text for an empty table. More...

	setIsDataTable ($a_val)
	Set is data table. More...

	getIsDataTable ()
	Get is data table. More...

	setEnableTitle ($a_enabletitle)
	Set Enable Title. More...

	getEnableTitle ()
	Get Enable Title. More...

	setEnableHeader ($a_enableheader)
	Set Enable Header. More...

	getEnableHeader ()
	Get Enable Header. More...

	setEnableNumInfo ($a_val)
	Set enable num info. More...

	getEnableNumInfo ()
	Get enable num info. More...

	setTitle ($a_title, $a_icon=0, $a_icon_alt=0)
	Set title and title icon. More...

	setDescription ($a_val)
	Set description. More...

	getDescription ()
	Get description. More...

	setOrderField ($a_order_field)
	set order column More...

	getOrderField ()

	setData ($a_data)
	set table data @access public More...

	getData ()

	dataExists ()

	setPrefix ($a_prefix)
	set prefix for sort and offset fields (if you have two or more tables on a page that you want to sort separately) @access public More...

	getPrefix ()

	addFilterItem ($a_input_item, $a_optional=false)
	Add filter item. More...

	addFilterItemByMetaType ($id, $type=self::FILTER_TEXT, $a_optional=false, $caption=NULL)
	Add filter by standard type. More...

	getFilterItems ($a_optionals=false)
	Get filter items. More...

	getFilterItemByPostVar ($a_post_var)

	setFilterCols ($a_val)
	Set filter columns. More...

	getFilterCols ()
	Get filter columns. More...

	setDisableFilterHiding ($a_val=true)
	Set disable filter hiding. More...

	getDisableFilterHiding ()
	Get disable filter hiding More...

	isFilterSelected ($a_col)
	Is given filter selected? More...

	getSelectedFilters ()
	Get selected filters. More...

	determineSelectedFilters ()
	Determine selected filters. More...

	setCustomPreviousNext ($a_prev_link, $a_next_link)
	Set custom previous/next links. More...

	setFormAction ($a_form_action, $a_multipart=false)
	Set Form action parameter. More...

	getFormAction ()
	Get Form action parameter. More...

	setFormName ($a_formname)
	Set Form name. More...

	getFormName ()
	Get Form name. More...

	setId ($a_val)
	Set id. More...

	getId ()
	Get element id. More...

	setDisplayAsBlock ($a_val)
	Set display as block. More...

	getDisplayAsBlock ()
	Get display as block. More...

	getSelectAllCheckbox ()
	Get the name of the checkbox that should be toggled with a select all button. More...

	setSelectAllCheckbox ($a_select_all_checkbox)
	Set the name of the checkbox that should be toggled with a select all button. More...

	setExternalSorting ($a_val)
	Set external sorting. More...

	getExternalSorting ()
	Get external sorting. More...

	setFilterCommand ($a_val, $a_caption=null)
	Set filter command. More...

	getFilterCommand ()
	Get filter command. More...

	setResetCommand ($a_val, $a_caption=null)
	Set reset filter command. More...

	getResetCommand ()
	Get reset filter command. More...

	setExternalSegmentation ($a_val)
	Set external segmentation. More...

	getExternalSegmentation ()
	Get external segmentation. More...

	setRowTemplate ($a_template, $a_template_dir="")
	Set row template. More...

	setDefaultOrderField ($a_defaultorderfield)
	Set Default order field. More...

	getDefaultOrderField ()
	Get Default order field. More...

	setDefaultOrderDirection ($a_defaultorderdirection)
	Set Default order direction. More...

	getDefaultOrderDirection ()
	Get Default order direction. More...

	clearCommandButtons ()

	addCommandButton ($a_cmd, $a_text, $a_onclick='', $a_id="", $a_class=null)
	Add Command button. More...

	addCommandButtonInstance (ilButtonBase $a_button)
	Add Command button instance. More...

	addSelectionButton ($a_sel_var, $a_options, $a_cmd, $a_text, $a_default_selection='')
	Add Selection List + Command button. More...

	addMultiItemSelectionButton ($a_sel_var, $a_options, $a_cmd, $a_text, $a_default_selection='')
	Add Selection List + Command button for selected items. More...

	setCloseCommand ($a_link)
	Add command for closing table. More...

	addMultiCommand ($a_cmd, $a_text)
	Add Command button. More...

	addHiddenInput ($a_name, $a_value)
	Add Hidden Input field. More...

	addHeaderCommand ($a_href, $a_text, $a_target="", $a_img="")
	Add Header Command (Link) (Image needed for now) More...

	setTopCommands ($a_val)
	Set top commands (display command buttons on top of table, too) More...

	getTopCommands ()
	Get top commands (display command buttons on top of table, too) More...

	addColumn ($a_text, $a_sort_field="", $a_width="", $a_is_checkbox_action_column=false, $a_class="", $a_tooltip="", $a_tooltip_with_html=false)
	Add a column to the header. More...

	getNavParameter ()

	setOrderLink ($sort_field, $order_dir)

	fillHeader ()

	determineOffsetAndOrder ($a_omit_offset=false)
	Determine offset and order. More...

	storeNavParameter ()

	getHTML ()
	Get HTML. More...

	numericOrdering ($a_field)
	Should this field be sorted numeric? More...

	render ()
	render table @access public More...

	writeFilterToSession ()
	Write filter values to session. More...

	resetFilter ()
	Reset filter. More...

	fillFooter ()
	Fill footer row. More...

	getLinkbar ($a_num)
	Get previous/next linkbar. More...

	fillHiddenRow ()

	fillActionRow ()
	Fill Action Row. More...

	setHeaderHTML ($html)
	set header html More...

	storeProperty ($type, $value)
	Store table property. More...

	loadProperty ($type)
	Load table property. More...

	getCurrentState ()
	get current settings for order, limit, columns and filter More...

	setContext ($id)
	Set context. More...

	getContext ()
	Get context. More...

	setShowRowsSelector ($a_value)
	Toggle rows-per-page selector. More...

	getShowRowsSelector ()
	Get rows-per-page selector state. More...

	setShowTemplates ($a_value)
	Toggle templates. More...

	getShowTemplates ()
	Get template state. More...

	restoreTemplate ($a_name)
	Restore state from template. More...

	saveTemplate ($a_name)
	Save current state as template. More...

	deleteTemplate ($a_name)
	Delete template. More...

	getLimit ()
	Get limit. More...

	getOffset ()
	Get offset. More...

	setExportFormats (array $formats)
	Set available export formats. More...

	setPrintMode ($a_value=false)
	Toogle print mode. More...

	getPrintMode ()
	Get print mode. More...

	getExportMode ()
	Was export activated? More...

	exportData ($format, $send=false)
	Export and optionally send current table data. More...

	setEnableAllCommand ($a_value)
	Enable actions for all entries in current result. More...

	setRowSelectorLabel ($row_selector_label)

	getRowSelectorLabel ()

	setPreventDoubleSubmission ($a_val)
	Set prevent double submission. More...

	getPreventDoubleSubmission ()
	Get prevent double submission. More...

	setLimit ($a_limit=0, $a_default_limit=0)
	set max. More...

Public Member Functions inherited from ilTableGUI
	ilTableGUI ($a_data=0, $a_global_tpl=true)
	Constructor. More...

	setTemplate (&$a_tpl)
	set template @access public More...

&	getTemplateObject ()

	setData ($a_data)
	set table data @access public More...

	getData ()

	setTitle ($a_title, $a_icon=0, $a_icon_alt=0)
	set table title @access public More...

	setHelp ($a_help_page, $a_help_icon, $a_help_icon_alt=0)
	set table help page @access public More...

	setHeaderNames ($a_header_names)
	set table header names @access public More...

	getColumnCount ()
	Returns the column count based on the number of the header row columns @access public. More...

	setHeaderVars ($a_header_vars, $a_header_params=0)
	set table header vars @access public More...

	setColumnWidth ($a_column_width)
	set table column widths @access public More...

	setOneColumnWidth ($a_column_width, $a_column_number)
	set one table column width @access public More...

	setMaxCount ($a_max_count)
	set max. More...

	setLimit ($a_limit=0, $a_default_limit=0)
	set max. More...

	getLimit ()
	Get limit. More...

	setPrefix ($a_prefix)
	set prefix for sort and offset fields (if you have two or more tables on a page that you want to sort separately) @access public More...

	setOffset ($a_offset)
	set dataset offset @access public More...

	getOffset ()
	Get offset. More...

	setOrderColumn ($a_order_column=0, $a_default_column=0)
	set order column @access public More...

	getOrderColumn ()
	Get order column. More...

	setOrderDirection ($a_order_direction)
	set order direction @access public More...

	getOrderDirection ()
	Get order direction. More...

	setFooter ($a_style, $a_previous=0, $a_next=0)
	set order direction @access public More...

	enable ($a_module_name)
	enables particular modules of table More...

	disable ($a_module_name)
	diesables particular modules of table More...

	sortData ()

	render ()
	render table @access public More...

	renderHeader ()

	setOrderLink ($key, $order_dir)

	setStyle ($a_element, $a_style)

	getStyle ($a_element)

	setBase ($a_base)
	Set Base script name (deprecated, only use this for workarounds). More...

	getBase ()
	Get Base script name (deprecated, only use this for workarounds). More...

	getFormName ()

	setFormName ($a_name="cmd")

	getSelectAllCheckbox ()

	setSelectAllCheckbox ($a_select_all_checkbox)

	clearActionButtons ()

	addActionButton ($btn_name, $btn_value)

Protected Member Functions
	getStatus (ilDataCollectionRecord $record, ilDataCollectionField $field)
	@description This adds the collumn for status. More...

	getCommentsAjaxLink ($recordId)
	@description Get the ajax link for displaying the comments in the right panel (to be wrapped in an onclick attr) More...

Protected Member Functions inherited from ilTable2GUI
	prepareOutput ()
	Anything that must be done before HTML is generated. More...

	isAdvMDFilter (ilAdvancedMDRecordGUI $a_gui, $a_element)
	Check if filter element is based on adv md. More...

	fillRow ($a_set)
	Standard Version of Fill Row. More...

	getFilterValue (ilFormPropertyGUI $a_item)
	Get current filter value. More...

	SetFilterValue (ilFormPropertyGUI $a_item, $a_value)
	Set current filter value. More...

	fillMetaExcel ($worksheet, &$a_row)
	Add meta information to excel export. More...

	fillHeaderExcel ($worksheet, &$a_row)
	Excel Version of Fill Header. More...

	fillRowExcel ($a_worksheet, &$a_row, $a_set)
	Excel Version of Fill Row. More...

	fillMetaCSV ($a_csv)
	Add meta information to csv export. More...

	fillHeaderCSV ($a_csv)
	CSV Version of Fill Header. More...

	fillRowCSV ($a_csv, $a_set)
	CSV Version of Fill Row. More...

Protected Attributes
	$table

	$object_data

	$numeric_fields = array()

	$filter = array()

	$mode

Protected Attributes inherited from ilTable2GUI
	$close_command = ""

	$top_anchor = "il_table_top"

	$filters = array()

	$optional_filters = array()

	$filter_cmd = 'applyFilter'

	$reset_cmd = 'resetFilter'

	$filter_cols = 5

	$ext_sort = false

	$ext_seg = false

	$context = ""

	$mi_sel_buttons = null

	$disable_filter_hiding = false

	$selected_filter = false

	$top_commands = true

	$selectable_columns = array()

	$selected_column = array()

	$show_templates = false

	$show_rows_selector = true

	$rows_selector_off = false

	$nav_determined = false

	$limit_determined = false

	$filters_determined = false

	$columns_determined = false

	$open_form_tag = true

	$close_form_tag = true

	$export_formats

	$export_mode

	$print_mode

	$enable_command_for_all

	$restore_filter

	$restore_filter_values

	$sortable_fields = array()

	$prevent_double_submission = true

	$row_selector_label

Private Member Functions
	buildData ()
	@description Parse data from record objects to an array that is then set to this table with ::setData() More...

Additional Inherited Members
Static Public Member Functions inherited from ilTable2GUI
static	getAllCommandLimit ()
	Get maximum number of entries to enable actions for all. More...

Data Fields inherited from ilTable2GUI
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	EXPORT_EXCEL = 1

const	EXPORT_CSV = 2

const	ACTION_ALL_LIMIT = 1000

Data Fields inherited from ilTableGUI
	$title

	$icon

	$icon_alt

	$help_page

	$help_icon

	$help_icon_alt

	$header_names

	$header_vars

	$linkbar_vars

	$data

	$column_count

	$column_width

	$max_count

	$limit

	$max_limit = false

	$offset

	$order_column

	$order_direction

	$footer_style

	$footer_previous

	$footer_next

	$lang_support = true

	$global_tpl

	$form_name

	$select_all_checkbox

	$action_buttons

	$prefix

	$base = ""

	$enabled

	$styles

Detailed Description

Class ilDataCollectionField.

Author: Martin Studer ms@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch; Marcel Raimann mr@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch; Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch; Oskar Truffer ot@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Version: $Id:

Definition at line 25 of file class.ilDataCollectionRecordListTableGUI.php.

Member Function Documentation

◆ buildData()

ilDataCollectionRecordListTableGUI::buildData ( )

private

@description Parse data from record objects to an array that is then set to this table with ::setData()

Definition at line 183 of file class.ilDataCollectionRecordListTableGUI.php.

                                     {
                global $ilCtrl, $lng;
 
                $data = array();
                foreach ($this->object_data as $record) {
                        $record_data = array();
                        $record_data["_front"] = NULL;
                        $record_data['_record'] = $record;
 
                        foreach ($this->table->getVisibleFields() as $field) {
                                $title = $field->getTitle();
                                $record_data[$title] = $record->getRecordFieldHTML($field->getId());
 
                                // Additional column filled in ::fillRow() method, showing the learning progress
                                if ($field->getLearningProgress()) {
                                        $record_data["_status_" . $title] = $this->getStatus($record, $field);
                                }
                                if ($field->getId() == 'comments') {
                                        $record_data['n_comments'] = count($record->getComments());
                                }
                        }
 
                        $ilCtrl->setParameterByClass("ildatacollectionfieldeditgui", "record_id", $record->getId());
                        $ilCtrl->setParameterByClass("ildatacollectionrecordviewgui", "record_id", $record->getId());
                        $ilCtrl->setParameterByClass("ildatacollectionrecordeditgui", "record_id", $record->getId());
                        $ilCtrl->setParameterByClass("ildatacollectionrecordeditgui", "mode", $this->mode);
 
                        if (ilDataCollectionRecordViewGUI::hasTableValidViewDefinition($this->table)) {
                                $record_data["_front"] = $ilCtrl->getLinkTargetByClass("ildatacollectionrecordviewgui", 'renderRecord');
                        }
 
                        $alist = new ilAdvancedSelectionListGUI();
                        $alist->setId($record->getId());
                        $alist->setListTitle($lng->txt("actions"));
 
                        if (ilDataCollectionRecordViewGUI::hasTableValidViewDefinition($this->table)) {
                                $alist->addItem($lng->txt('view'), 'view', $ilCtrl->getLinkTargetByClass("ildatacollectionrecordviewgui", 'renderRecord'));
                        }
 
                        if ($record->hasPermissionToEdit($this->parent_obj->parent_obj->ref_id)) {
                                $alist->addItem($lng->txt('edit'), 'edit', $ilCtrl->getLinkTargetByClass("ildatacollectionrecordeditgui", 'edit'));
                        }
 
                        if ($record->hasPermissionToDelete($this->parent_obj->parent_obj->ref_id)) {
                                $alist->addItem($lng->txt('delete'), 'delete', $ilCtrl->getLinkTargetByClass("ildatacollectionrecordeditgui", 'confirmDelete'));
                        }
 
                        if ($this->table->getPublicCommentsEnabled()) {
                                $alist->addItem($lng->txt('dcl_comments'), 'comment', '', '', '', '', '', '', $this->getCommentsAjaxLink($record->getId()));
                        }
 
                        $record_data["_actions"] = $alist->getHTML();
                        $data[] = $record_data;
                }
 
                //sort by comments
                if($this->getOrderField() == 'comments') {
                        usort($data, array($this, 'sortByNComments'));
                }
 
                $this->setData($data);
        }

References ilTableGUI\$data, $ilCtrl, $lng, ilTableGUI\$title, ilTable2GUI\getOrderField(), getStatus(), ilDataCollectionRecordViewGUI\hasTableValidViewDefinition(), and ilTable2GUI\setData().

Referenced by setRecordData().

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◆ fillHeaderExcel()

ilDataCollectionRecordListTableGUI::fillHeaderExcel	(		$worksheet,
		&	$row
	)

Parameters

	$worksheet
int	$row

Reimplemented from ilTable2GUI.

Definition at line 154 of file class.ilDataCollectionRecordListTableGUI.php.

                                                           {
                $this->writeFilterToSession();
                $this->initFilter();
                $col = 0;
 
                foreach ($this->table->getFields() as $field) {
                        if ($field->getExportable()) {
                                $worksheet->writeString($row, $col, $field->getTitle());
                                $col++;
                                if ($field->getDatatypeId() == ilDataCollectionDatatype::INPUTFORMAT_TEXT) {
                                        $properties = $field->getProperties();
                                        if ($properties[ilDataCollectionField::PROPERTYID_URL]) {
                                                $worksheet->writeString($row, $col, $field->getTitle() . '_title');
                                                $col++;
                                        }
                                }
                        }
                }
        }

References $row, initFilter(), ilDataCollectionDatatype\INPUTFORMAT_TEXT, ilDataCollectionField\PROPERTYID_URL, and ilTable2GUI\writeFilterToSession().

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◆ fillRowExcel()

ilDataCollectionRecordListTableGUI::fillRowExcel	(		$worksheet,
		&	$row,
			$record
	)

Parameters

object	$worksheet
int	$row
ilDataCollectionRecord[]	$record

Reimplemented from ilTable2GUI.

Definition at line 260 of file class.ilDataCollectionRecordListTableGUI.php.

                                                                 {
                $col = 0;
                foreach ($this->table->getFields() as $field) {
                        if ($field->getExportable()) {
                                $record["_record"]->fillRecordFieldExcelExport($worksheet, $row, $col, $field->getId());
                        }
                }
        }

References $row.

◆ getCommentsAjaxLink()

ilDataCollectionRecordListTableGUI::getCommentsAjaxLink ( $recordId )

protected

@description Get the ajax link for displaying the comments in the right panel (to be wrapped in an onclick attr)

Parameters

int $recordId Record-ID

Returns: string

Definition at line 389 of file class.ilDataCollectionRecordListTableGUI.php.

                                                          {
                $ajax_hash = ilCommonActionDispatcherGUI::buildAjaxHash(1, $_GET['ref_id'], 'dcl', $this->parent_obj->obj_id, 'dcl', $recordId);
 
                return ilNoteGUI::getListCommentsJSCall($ajax_hash, '');
        }

References $_GET, ilCommonActionDispatcherGUI\buildAjaxHash(), and ilNoteGUI\getListCommentsJSCall().

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◆ getFilter()

ilDataCollectionRecordListTableGUI::getFilter ( )

@description Return array of fields that are currently stored in the filter.

Return empty array if no filtering is required.

Returns: array

Definition at line 139 of file class.ilDataCollectionRecordListTableGUI.php.

                                    {
                return $this->filter;
        }

References $filter.

◆ getStatus()

ilDataCollectionRecordListTableGUI::getStatus	(	ilDataCollectionRecord	$record,
		ilDataCollectionField	$field
	)

protected

@description This adds the collumn for status.

Parameters

ilDataCollectionRecord	$record
ilDataCollectionField	$field

Returns: string

Definition at line 336 of file class.ilDataCollectionRecordListTableGUI.php.

                                                                                                   {
                $record_field = ilDataCollectionCache::getRecordFieldCache($record, $field);
                $return = "";
                if ($status = $record_field->getStatus()) {
                        $return = "<img src='" . ilLearningProgressBaseGUI::_getImagePathForStatus($status->status) . "'>";
                }
 
                return $return;
        }

References ilLearningProgressBaseGUI\_getImagePathForStatus(), and ilDataCollectionCache\getRecordFieldCache().

Referenced by buildData().

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◆ initFilter()

ilDataCollectionRecordListTableGUI::initFilter ( )

Init filter.

Overwrite this to initialize all filter input property objects.

Reimplemented from ilTable2GUI.

Definition at line 347 of file class.ilDataCollectionRecordListTableGUI.php.

                                     {
 
                foreach ($this->table->getFilterableFields() as $field) {
                        $input = ilDataCollectionDatatype::addFilterInputFieldToTable($field, $this);
                        $input->readFromSession();
                        $value = $input->getValue();
                        if (is_array($value)) {
                                if ($value['from'] || $value['to']) {
                                        $this->filter["filter_" . $field->getId()] = $value;
                                }
                        } else {
                                if ($value != '') {
                                        $this->filter["filter_" . $field->getId()] = $value;
                                }
                        }
                }
        }

References ilDataCollectionDatatype\addFilterInputFieldToTable().

Referenced by fillHeaderExcel().

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◆ loadProperty()

ilDataCollectionRecordListTableGUI::loadProperty ( $type )

Parameters

string $type

Returns: mixed

Reimplemented from ilTable2GUI.

Definition at line 371 of file class.ilDataCollectionRecordListTableGUI.php.

                                            {
                global $ilUser;
 
                if ($ilUser instanceof ilObjUser AND $this->getId()) {
                        $tab_prop = new ilTablePropertiesStorage();
 
                        return $tab_prop->getProperty($this->getId(), $ilUser->getId(), $type);
                }
        }

References $ilUser, and ilTable2GUI\getId().

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◆ numericOrdering()

ilDataCollectionRecordListTableGUI::numericOrdering ( $a_field )

Should this field be sorted numeric?

Returns: boolean numeric ordering; default is false

Reimplemented from ilTable2GUI.

Definition at line 175 of file class.ilDataCollectionRecordListTableGUI.php.

                                                {
                return in_array($field, $this->numeric_fields);
        }

◆ setRecordData()

ilDataCollectionRecordListTableGUI::setRecordData ( $data )

Definition at line 144 of file class.ilDataCollectionRecordListTableGUI.php.

                                             {
                $this->object_data = $data;
                $this->buildData($data);
        }

References ilTableGUI\$data, and buildData().

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◆ sortByNComments()

ilDataCollectionRecordListTableGUI::sortByNComments	(	$a,
		$b
	)

Definition at line 246 of file class.ilDataCollectionRecordListTableGUI.php.

                                               {
                if ($this->getOrderDirection() == 'asc') {
                        return $a['n_comments'] > $b['n_comments'] ? -1 : 1;
                }
                return $a['n_comments'] < $b['n_comments'] ? -1 : 1;
 
        }