ilRecurrenceInputGUI Class Reference

This class represents an input GUI for recurring events/appointments (course events or calendar appointments) More...

Inheritance diagram for ilRecurrenceInputGUI:

Collaboration diagram for ilRecurrenceInputGUI:

Public Member Functions
	__construct ($a_title, $a_postvar)
	Constructor.
	checkInput ()
	check input
	setRecurrence ($a_rec)
	set recurrence object
	enableUntilSelection ($a_enabled)
	enable until selection
	enabledUntilSelection ()
	enabled until selection
	setEnabledSubForms ($a_sub_forms)
	set enabled subforms
	getEnabledSubForms ()
	get enabled subforms
	insert ($a_tpl)
	insert
Public Member Functions inherited from ilCustomInputGUI
	setHtml ($a_html)
	Set Html.
	getHtml ()
	Get Html.
	setValueByArray ($a_values)
	Set value by array.
	insert (&$a_tpl)
	Insert property html.
Public Member Functions inherited from ilSubEnabledFormPropertyGUI
	addSubItem ($a_item)
	Add Subitem.
	getSubItems ()
	Get Subitems.
	checkSubItemsInput ()
	Check SubItems.
	getSubForm ()
	Get sub form html.
	getItemByPostVar ($a_post_var)
	Get item by post var.
Public Member Functions inherited from ilFormPropertyGUI
&	executeCommand ()
	Execute command.
	getType ()
	Get Type.
	setTitle ($a_title)
	Set Title.
	getTitle ()
	Get Title.
	setPostVar ($a_postvar)
	Set Post Variable.
	getPostVar ()
	Get Post Variable.
	getFieldId ()
	Get Post Variable.
	setInfo ($a_info)
	Set Information Text.
	getInfo ()
	Get Information Text.
	setAlert ($a_alert)
	Set Alert Text.
	getAlert ()
	Get Alert Text.
	setRequired ($a_required)
	Set Required.
	getRequired ()
	Get Required.
	setDisabled ($a_disabled)
	Set Disabled.
	getDisabled ()
	Get Disabled.
	setParentForm ($a_parentform)
	Set Parent Form.
	getParentForm ()
	Get Parent Form.
	setParent ($a_val)
	Set Parent GUI object.
	getParent ()
	Get Parent GUI object.
	hideSubForm ()
	Sub form hidden on init?
	setHiddenTitle ($a_val)
	Set hidden title (for screenreaders)
	getHiddenTitle ()
	Get hidden title.
	serializeData ()
	serialize data
	unserializeData ($a_data)
	unserialize data
	writeToSession ()
	Write to session.
	clearFromSession ()
	Clear session value.
	readFromSession ()
	Read from session.
	getHiddenTag ($a_post_var, $a_value)
	Get hidden tag (used for disabled properties)

Data Fields
const	REC_LIMITED = 2
const	REC_UNLIMITED = 1

Protected Member Functions
	buildWeekDaySelection ($tpl)
	build weekday checkboxes
	buildMonthlyByDaySelection ($tpl)
	build monthly by day list (e.g second monday)
	buildMonthlyByMonthDaySelection ($tpl)
	build monthly bymonthday selection
	buildYearlyByMonthDaySelection ($tpl)
	protected
	buildYearlyByDaySelection ($tpl)
	protected
	buildUntilSelection ($tpl)
	build selection for ending date

Protected Attributes
	$lng
	$recurrence
	$user_settings
	$until_selection = true
	$enabled_subforms
Protected Attributes inherited from ilCustomInputGUI
	$html
Protected Attributes inherited from ilSubEnabledFormPropertyGUI
	$sub_items = array()
Protected Attributes inherited from ilFormPropertyGUI
	$type
	$title
	$postvar
	$info
	$alert
	$required = false
	$parentgui
	$parentform

Detailed Description

This class represents an input GUI for recurring events/appointments (course events or calendar appointments)

Author

Stefan Meyer smeye.nosp@m.r.il.nosp@m.ias@g.nosp@m.mx.d.nosp@m.e

Version

$Id$

Definition at line 36 of file class.ilRecurrenceInputGUI.php.

Constructor & Destructor Documentation

ilRecurrenceInputGUI::__construct	(		$a_title,
			$a_postvar
	)

Constructor.

public

Parameters

string	title
string	postvar

Reimplemented from ilCustomInputGUI.

Definition at line 61 of file class.ilRecurrenceInputGUI.php.

References $lng, $tpl, and ilCalendarUserSettings\_getInstanceByUserId().

        {
                global $lng,$tpl,$ilUser;
                
                $this->lng = $lng;
                $this->lng->loadLanguageModule('dateplaner');

                $this->user_settings = ilCalendarUserSettings::_getInstanceByUserId($ilUser->getId());
                $tpl->addJavascript("./Services/Calendar/js/recurrence_input.js");
                
                parent::__construct($a_title,$a_postvar);
        }

Here is the call graph for this function:

Member Function Documentation

ilRecurrenceInputGUI::buildMonthlyByDaySelection (   $tpl )

protected

build monthly by day list (e.g second monday)

protected

Parameters

@return

Definition at line 263 of file class.ilRecurrenceInputGUI.php.

References $tpl, ilCalendarUtil\_numericDayToString(), and ilUtil\formSelect().

Referenced by insert().

        {
                $byday_list = $this->recurrence->getBYDAYList();
                $chosen_num_day = 1;
                $chosen_day = 'MO';
                $chosen = false;
                foreach($byday_list as $byday)
                {
                        if(preg_match('/^(-?\d)([A-Z][A-Z])/',$byday,$parsed) === 1)
                        {
                                $chosen = true;
                                $chosen_num_day = $parsed[1];
                                $chosen_day = $parsed[2];
                        }
                }
                // check for last day
                if(count($this->recurrence->getBYMONTHDAYList()) == 1)
                {
                        $bymonthday = $this->recurrence->getBYMONTHDAY();
                        if(in_array($bymonthday,array(1,2,3,4,5,-1)))
                        {
                                $chosen = true;
                                $chosen_num_day = $bymonthday;
                                $chosen_day = 9;
                        }       
                }
                // Check for first, second... last weekday
                if(count($this->recurrence->getBYSETPOSList()) == 1)
                {
                        $bysetpos = $this->recurrence->getBYSETPOS();
                        if(in_array($bysetpos,array(1,2,3,4,5,-1)))
                        {
                                if($this->recurrence->getBYDAYList() == array('MO','TU','WE','TH','FR'))
                                {
                                        $chosen = true;
                                        $chosen_num_day = $bysetpos;
                                        $chosen_day = 8;
                                }
                        }
                }
                
                

                if($chosen)
                {
                        $tpl->setVariable('M_BYDAY_CHECKED','checked="checked"');
                }

                $num_options = array(
                        1 => $this->lng->txt('cal_first'),
                        2 => $this->lng->txt('cal_second'),
                        3 => $this->lng->txt('cal_third'),
                        4 => $this->lng->txt('cal_fourth'),
                        5 => $this->lng->txt('cal_fifth'),
                   -1 => $this->lng->txt('cal_last'));
                   
                $tpl->setVariable('SELECT_BYDAY_NUM_MONTHLY',ilUtil::formSelect(
                        $chosen_num_day,
                        'monthly_byday_num',
                        $num_options,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_monthly_radio_1');")));
                        
                $days = array(0 => 'SU',1 => 'MO',2 => 'TU',3 => 'WE',4 => 'TH',5 => 'FR',6 => 'SA',7 => 'SU');
                
                for($i = (int) $this->user_settings->getWeekStart();$i < 7 + (int) $this->user_settings->getWeekStart();$i++)
                {
                        $days_select[$days[$i]] = ilCalendarUtil::_numericDayToString($i);
                }
                $days_select[8] = $this->lng->txt('cal_weekday');
                $days_select[9] = $this->lng->txt('cal_day_of_month');
                $tpl->setVariable('SEL_BYDAY_DAY_MONTHLY',ilUtil::formSelect(
                        $chosen_day,
                        'monthly_byday_day',
                        $days_select,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_monthly_radio_1');")));
        }

Here is the call graph for this function:

Here is the caller graph for this function:

ilRecurrenceInputGUI::buildMonthlyByMonthDaySelection (   $tpl )

protected

build monthly bymonthday selection

protected

Parameters

@return

Definition at line 355 of file class.ilRecurrenceInputGUI.php.

References $tpl, and ilUtil\formSelect().

Referenced by insert().

        {
                $tpl->setVariable('TXT_IN',$this->lng->txt('cal_in'));
                
                $chosen_day = 1;
                $chosen = false;
                if(count($bymonthday = $this->recurrence->getBYMONTHDAYList()) == 1)
                {
                        foreach($bymonthday as $mday)
                        {
                                if($mday > 0 and $mday < 32)
                                {
                                        $chosen = true;
                                        $chosen_day = $mday;
                                }
                        }
                }

                if($chosen)
                {
                        $tpl->setVariable('M_BYMONTHDAY_CHECKED','checked="checked"');
                }
                
                for($i = 1; $i < 32;$i++)
                {
                        $options[$i] = $i;
                }
                $tpl->setVariable('SELECT_BYMONTHDAY',ilUtil::formSelect(
                        $chosen_day,
                        'monthly_bymonthday',
                        $options,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_monthly_radio_2');")));
        }

Here is the call graph for this function:

Here is the caller graph for this function:

ilRecurrenceInputGUI::buildUntilSelection (   $tpl )

protected

build selection for ending date

protected

Parameters

object

tpl

Returns

Definition at line 555 of file class.ilRecurrenceInputGUI.php.

References $tpl, and enabledUntilSelection().

Referenced by insert().

        {
                
                if($this->enabledUntilSelection())
                {
                        $tpl->setVariable('TXT_NO_ENDING',$this->lng->txt('cal_no_ending'));
                        $tpl->setVariable('TXT_UNTIL_CREATE',$this->lng->txt('cal_create'));
                        $tpl->setVariable('TXT_APPOINTMENTS',$this->lng->txt('cal_appointments'));
                        
                        $tpl->setVariable('VAL_COUNT',$this->recurrence->getFrequenceUntilCount() ? 
                                $this->recurrence->getFrequenceUntilCount() : 
                                2);
                        if($this->recurrence->getFrequenceUntilCount())
                        {
                                $tpl->setVariable('UNTIL_COUNT_CHECKED','checked="checked"');
                        }
                        else
                        {
                                $tpl->setVariable('UNTIL_NO_CHECKED','checked="checked"');
                        }
                }
                else
                {
                        $tpl->setVariable('TXT_FIXED_UNTIL_CREATE',$this->lng->txt('cal_create'));
                        $tpl->setVariable('TXT_FIXED_APPOINTMENTS',$this->lng->txt('cal_appointments'));
                        
                        $tpl->setVariable('VAL_FIXED_COUNT',$this->recurrence->getFrequenceUntilCount() ? 
                                $this->recurrence->getFrequenceUntilCount() : 
                                5);
                        
                }
        }       

Here is the call graph for this function:

Here is the caller graph for this function:

ilRecurrenceInputGUI::buildWeekDaySelection (   $tpl )

protected

build weekday checkboxes

protected

Parameters

object

tpl

Definition at line 227 of file class.ilRecurrenceInputGUI.php.

References $tpl, and ilCalendarUtil\_numericDayToString().

Referenced by insert().

        {
                $days = array(0 => 'SU',1 => 'MO',2 => 'TU',3 => 'WE',4 => 'TH',5 => 'FR',6 => 'SA',7 => 'SU');
                
                $checked_days = array();
                foreach($this->recurrence->getBYDAYList() as $byday)
                {
                        if(in_array($byday,$days))
                        {
                                $checked_days[] = $byday;
                        }
                }
                
                for($i = (int) $this->user_settings->getWeekStart();$i < 7 + (int) $this->user_settings->getWeekStart();$i++)
                {
                        $tpl->setCurrentBlock('byday_simple');
                        
                        if(in_array($days[$i],$checked_days))
                        {
                                $tpl->setVariable('BYDAY_WEEKLY_CHECKED','checked="checked"');
                        }
                        $tpl->setVariable('TXT_ON',$this->lng->txt('cal_on'));
                        $tpl->setVariable('BYDAY_WEEKLY_VAL',$days[$i]);
                        $tpl->setVariable('TXT_DAY_SHORT',ilCalendarUtil::_numericDayToString($i,false));
                        $tpl->parseCurrentBlock();
                }
                
        }

Here is the call graph for this function:

Here is the caller graph for this function:

ilRecurrenceInputGUI::buildYearlyByDaySelection (   $tpl )

protected

protected

Parameters

@return

Definition at line 467 of file class.ilRecurrenceInputGUI.php.

References $tpl, ilCalendarUtil\_numericDayToString(), ilCalendarUtil\_numericMonthToString(), and ilUtil\formSelect().

Referenced by insert().

        {
                $tpl->setVariable('TXT_ON_THE',$this->lng->txt('cal_on_the'));

                $chosen_num_day = 1;
                $chosen_day = 'MO';
                $chosen = false;
                foreach($this->recurrence->getBYDAYList() as $byday)
                {
                        if(preg_match('/^(-?\d)([A-Z][A-Z])/',$byday,$parsed) === 1)
                        {
                                $chosen = true;
                                $chosen_num_day = $parsed[1];
                                $chosen_day = $parsed[2];
                        }
                }


                $num_options = array(
                        1 => $this->lng->txt('cal_first'),
                        2 => $this->lng->txt('cal_second'),
                        3 => $this->lng->txt('cal_third'),
                        4 => $this->lng->txt('cal_fourth'),
                        5 => $this->lng->txt('cal_fifth'),
                   -1 => $this->lng->txt('cal_last'));
                   
                $tpl->setVariable('SELECT_BYDAY_NUM_YEARLY',ilUtil::formSelect(
                        $chosen_num_day,
                        'yearly_byday_num',
                        $num_options,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_yearly_radio_1');")));
                        
                
                $days = array(0 => 'SU',1 => 'MO',2 => 'TU',3 => 'WE',4 => 'TH',5 => 'FR',6 => 'SA',7 => 'SU');
                for($i = (int) $this->user_settings->getWeekStart();$i < 7 + (int) $this->user_settings->getWeekStart();$i++)
                {
                        $days_select[$days[$i]] = ilCalendarUtil::_numericDayToString($i);
                }
                $tpl->setVariable('SELECT_BYDAY_DAY_YEARLY',ilUtil::formSelect(
                        $chosen_day,
                        'yearly_byday',
                        $days_select,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_yearly_radio_1');")));
                        
        
                $chosen = false;
                $chosen_month = 1;
                foreach($this->recurrence->getBYMONTHList() as $month)
                {
                        if($this->recurrence->getBYMONTHDAYList())
                        {
                                $chosen_month = $month;
                                $chosen = true;
                                break;
                        }
                }
                $options = array();     
                for($m = 1;$m < 13;$m++)
                {
                        $options[$m] = ilCalendarUtil::_numericMonthToString($m);
                }
                $tpl->setVariable('SELECT_BYMONTH_BYDAY',ilUtil::formSelect(
                        $chosen_month,
                        'yearly_bymonth_byday',
                        $options,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_yearly_radio_1');")));
                        
        }

Here is the call graph for this function:

Here is the caller graph for this function:

ilRecurrenceInputGUI::buildYearlyByMonthDaySelection (   $tpl )

protected

protected

Parameters

objet

tpl

Returns

Definition at line 400 of file class.ilRecurrenceInputGUI.php.

References $tpl, ilCalendarUtil\_numericMonthToString(), and ilUtil\formSelect().

Referenced by insert().

        {
                $tpl->setVariable('TXT_Y_EVERY',$this->lng->txt('cal_every'));

                        
                $chosen = false;
                $chosen_month = 1;
                $chosen_day = 1;
                foreach($this->recurrence->getBYMONTHList() as $month)
                {
                        if($this->recurrence->getBYMONTHDAYList())
                        {
                                $chosen_month = $month;
                                $chosen = true;
                                break;
                        }
                }
                foreach($this->recurrence->getBYMONTHDAYList() as $day)
                {
                        $chosen_day = $day;
                }
                        
                for($i = 1; $i < 32;$i++)
                {
                        $options[$i] = $i;
                }
                $tpl->setVariable('SELECT_BYMONTHDAY_NUM_YEARLY',ilUtil::formSelect(
                        $chosen_day,
                        'yearly_bymonthday',
                        $options,
                        false,
                        true,
                        
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_yearly_radio_2');")));
                
                $options = array();     
                for($m = 1;$m < 13;$m++)
                {
                        $options[$m] = ilCalendarUtil::_numericMonthToString($m);
                }
                $tpl->setVariable('SELECT_BYMONTH_YEARLY',ilUtil::formSelect(
                        $chosen_month,
                        'yearly_bymonth_by_monthday',
                        $options,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => "ilUpdateSubTypeSelection('sub_yearly_radio_2');")));
                        
                        
                if($chosen)
                {
                        $tpl->setVariable('Y_BYMONTHDAY_CHECKED','checked="checked"');
                }
                
        }

Here is the call graph for this function:

Here is the caller graph for this function:

ilRecurrenceInputGUI::checkInput

(

)

check input

public

Parameters

@return

Reimplemented from ilCustomInputGUI.

Definition at line 81 of file class.ilRecurrenceInputGUI.php.

References $_POST, $lng, REC_LIMITED, and ilFormPropertyGUI\setAlert().

        {
                global $lng;
                
                if($_POST['frequence'] == 'NONE')
                {
                        return true;
                }
                
                if(!isset($_POST['until_type']) or $_POST['until_type'] == REC_LIMITED)
                {
                        if($_POST['count'] <= 0 or $_POST['count'] >= 100)
                        {
                                $this->setAlert($lng->txt("cal_rec_err_limit"));
                                return false;
                        }
                }

                return true;
        }

Here is the call graph for this function:

ilRecurrenceInputGUI::enabledUntilSelection

(

)

enabled until selection

public

Returns

Definition at line 131 of file class.ilRecurrenceInputGUI.php.

References $until_selection.

Referenced by buildUntilSelection().

        {
                return (bool) $this->until_selection;
        }

Here is the caller graph for this function:

ilRecurrenceInputGUI::enableUntilSelection

(

$a_enabled

)

enable until selection

public

Returns

Definition at line 120 of file class.ilRecurrenceInputGUI.php.

Referenced by ilObjSessionGUI\initForm().

        {
                $this->until_selection = $a_enabled;
        }

Here is the caller graph for this function:

ilRecurrenceInputGUI::getEnabledSubForms

(

)

get enabled subforms

public

Returns

Definition at line 155 of file class.ilRecurrenceInputGUI.php.

References $enabled_subforms.

        {
                return $this->enabled_subforms;
        }

ilRecurrenceInputGUI::insert

(

$a_tpl

)

insert

public

Parameters

@return

Definition at line 167 of file class.ilRecurrenceInputGUI.php.

References $tpl, buildMonthlyByDaySelection(), buildMonthlyByMonthDaySelection(), buildUntilSelection(), buildWeekDaySelection(), buildYearlyByDaySelection(), buildYearlyByMonthDaySelection(), ilUtil\formSelect(), IL_CAL_FREQ_DAILY, IL_CAL_FREQ_MONTHLY, IL_CAL_FREQ_WEEKLY, and IL_CAL_FREQ_YEARLY.

        {
                $tpl = new ilTemplate('tpl.recurrence_input.html',true,true,'Services/Calendar');
                $options = array('NONE' => $this->lng->txt('cal_no_recurrences'),
                        IL_CAL_FREQ_DAILY => $this->lng->txt('cal_daily'),
                        IL_CAL_FREQ_WEEKLY=> $this->lng->txt('cal_weekly'),
                        IL_CAL_FREQ_MONTHLY => $this->lng->txt('cal_monthly'),
                        IL_CAL_FREQ_YEARLY => $this->lng->txt('cal_yearly'));
                $tpl->setVariable('FREQUENCE',ilUtil::formSelect(
                        $this->recurrence->getFrequenceType(),
                        'frequence',
                        $options,
                        false,
                        true,
                        '',
                        '',
                        array('onchange' => 'ilHideFrequencies();','id' => 'il_recurrence_1')));
                
                $tpl->setVariable('TXT_EVERY',$this->lng->txt('cal_every'));

                // DAILY
                $tpl->setVariable('TXT_DAILY_FREQ_UNIT',$this->lng->txt('cal_day_s'));
                $tpl->setVariable('COUNT_DAILY_VAL',$this->recurrence->getInterval());
                
                // WEEKLY
                $tpl->setVariable('TXT_WEEKLY_FREQ_UNIT',$this->lng->txt('cal_week_s'));
                $tpl->setVariable('COUNT_WEEKLY_VAL',$this->recurrence->getInterval());
                $this->buildWeekDaySelection($tpl);
                
                // MONTHLY
                $tpl->setVariable('TXT_MONTHLY_FREQ_UNIT',$this->lng->txt('cal_month_s'));
                $tpl->setVariable('COUNT_MONTHLY_VAL',$this->recurrence->getInterval());
                $tpl->setVariable('TXT_ON_THE',$this->lng->txt('cal_on_the'));
                $tpl->setVariable('TXT_BYMONTHDAY',$this->lng->txt('cal_on_the'));
                $tpl->setVariable('TXT_OF_THE_MONTH',$this->lng->txt('cal_of_the_month'));
                $this->buildMonthlyByDaySelection($tpl);
                $this->buildMonthlyByMonthDaySelection($tpl);

                // YEARLY
                $tpl->setVariable('TXT_YEARLY_FREQ_UNIT',$this->lng->txt('cal_year_s'));
                $tpl->setVariable('COUNT_YEARLY_VAL',$this->recurrence->getInterval());
                $tpl->setVariable('TXT_ON_THE',$this->lng->txt('cal_on_the'));
                $this->buildYearlyByMonthDaySelection($tpl);
                $this->buildYearlyByDaySelection($tpl);

                // UNTIL
                $this->buildUntilSelection($tpl);
                
                $a_tpl->setCurrentBlock("prop_custom");
                $a_tpl->setVariable("CUSTOM_CONTENT", $tpl->get());
                $a_tpl->parseCurrentBlock();
                
        }

Here is the call graph for this function:

ilRecurrenceInputGUI::setEnabledSubForms

(

$a_sub_forms

)

set enabled subforms

public

Parameters

array(IL_CAL_FREQ_DAILY,IL_CAL_FREQ_WEEKLY...)

Returns

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

        {
                $this->enabled_subforms = $a_sub_forms;
        }

ilRecurrenceInputGUI::setRecurrence

(

$a_rec

)

set recurrence object

public

Parameters

@return

Definition at line 109 of file class.ilRecurrenceInputGUI.php.

        {
                $this->recurrence = $a_rec;
        }

Field Documentation

ilRecurrenceInputGUI::$enabled_subforms

protected

Initial value:

 array(
                IL_CAL_FREQ_DAILY,
                IL_CAL_FREQ_WEEKLY,
                IL_CAL_FREQ_MONTHLY,
                IL_CAL_FREQ_YEARLY)

Definition at line 48 of file class.ilRecurrenceInputGUI.php.

Referenced by getEnabledSubForms().

ilRecurrenceInputGUI::$lng

protected

Definition at line 41 of file class.ilRecurrenceInputGUI.php.

Referenced by __construct(), and checkInput().

ilRecurrenceInputGUI::$recurrence

protected

Definition at line 43 of file class.ilRecurrenceInputGUI.php.

ilRecurrenceInputGUI::$until_selection = true

protected

Definition at line 46 of file class.ilRecurrenceInputGUI.php.

Referenced by enabledUntilSelection().

ilRecurrenceInputGUI::$user_settings

protected

Definition at line 44 of file class.ilRecurrenceInputGUI.php.

const ilRecurrenceInputGUI::REC_LIMITED = 2

Definition at line 38 of file class.ilRecurrenceInputGUI.php.

Referenced by checkInput().

const ilRecurrenceInputGUI::REC_UNLIMITED = 1

Definition at line 39 of file class.ilRecurrenceInputGUI.php.

---

The documentation for this class was generated from the following file:

• Services/Calendar/classes/Form/class.ilRecurrenceInputGUI.php