Search moodle.org's
Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.


/**
 * Duration form element
 *
 * Contains class to create length of time for element.
 *
 * @package   core_form
 * @copyright 2009 Tim Hunt
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

global $CFG;
require_once($CFG->libdir . '/form/group.php');
require_once($CFG->libdir . '/formslib.php');
require_once($CFG->libdir . '/form/text.php');

/**
 * Duration element
 *
 * HTML class for a length of time. For example, 30 minutes of 4 days. The
 * values returned to PHP is the duration in seconds (an int rounded to the nearest second).
 *
 * @package   core_form
 * @category  form
 * @copyright 2009 Tim Hunt
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class MoodleQuickForm_duration extends MoodleQuickForm_group {
    /**
     * Control the fieldnames for form elements
     * optional => if true, show a checkbox beside the element to turn it on (or off)
> * defaultunit => which unit is default when the form is blank (default Minutes).
* @var array */
< protected $_options = array('optional' => false, 'defaultunit' => MINSECS);
> protected $_options = ['optional' => false, 'defaultunit' => MINSECS];
/** @var array associative array of time units (days, hours, minutes, seconds) */ private $_units = null; /** * constructor *
< * @param string $elementName Element's name
> * @param ?string $elementName Element's name
* @param mixed $elementLabel Label(s) for an element * @param array $options Options to control the element's display. Recognised values are * 'optional' => true/false - whether to display an 'enabled' checkbox next to the element. * 'defaultunit' => 1|MINSECS|HOURSECS|DAYSECS|WEEKSECS - the default unit to display when * the time is blank. If not specified, minutes is used. * 'units' => array containing some or all of 1, MINSECS, HOURSECS, DAYSECS and WEEKSECS * which unit choices to offer. * @param mixed $attributes Either a typical HTML attribute string or an associative array */ public function __construct($elementName = null, $elementLabel = null,
< $options = array(), $attributes = null) { < // TODO MDL-52313 Replace with the call to parent::__construct(). < HTML_QuickForm_element::__construct($elementName, $elementLabel, $attributes);
> $options = [], $attributes = null) { > parent::__construct($elementName, $elementLabel, $attributes);
$this->_persistantFreeze = true; $this->_appendName = true; $this->_type = 'duration'; // Set the options, do not bother setting bogus ones if (!is_array($options)) {
< $options = array();
> $options = [];
} $this->_options['optional'] = !empty($options['optional']); if (isset($options['defaultunit'])) { if (!array_key_exists($options['defaultunit'], $this->get_units())) { throw new coding_exception($options['defaultunit'] . ' is not a recognised unit in MoodleQuickForm_duration.'); } $this->_options['defaultunit'] = $options['defaultunit']; } if (isset($options['units'])) { if (!is_array($options['units'])) { throw new coding_exception( 'When creating a duration form field, units option must be an array.'); } // Validate and register requested units. $availableunits = $this->get_units(); $displayunits = []; foreach ($options['units'] as $requestedunit) { if (!isset($availableunits[$requestedunit])) { throw new coding_exception($requestedunit . ' is not a recognised unit in MoodleQuickForm_duration.'); } $displayunits[$requestedunit] = $availableunits[$requestedunit]; } krsort($displayunits, SORT_NUMERIC); $this->_options['units'] = $displayunits; } } /** * Old syntax of class constructor. Deprecated in PHP7. * * @deprecated since Moodle 3.1 */ public function MoodleQuickForm_duration($elementName = null, $elementLabel = null,
< $options = array(), $attributes = null) {
> $options = [], $attributes = null) {
debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER); self::__construct($elementName, $elementLabel, $options, $attributes); } /** * Returns time associative array of unit length. * * @return array unit length in seconds => string unit name. */ public function get_units() { if (is_null($this->_units)) {
< $this->_units = array(
> $this->_units = [
WEEKSECS => get_string('weeks'), DAYSECS => get_string('days'), HOURSECS => get_string('hours'), MINSECS => get_string('minutes'), 1 => get_string('seconds'),
< );
> ];
} return $this->_units; } /** * Get the units to be used for this field. * * The ones specified in the options passed to the constructor, or all by default. * * @return array number of seconds => lang string. */ protected function get_units_used() { if (!empty($this->_options['units'])) { return $this->_options['units']; } else { return $this->get_units(); } } /** * Converts seconds to the best possible time unit. for example * 1800 -> [30, MINSECS] = 30 minutes. * * @param int $seconds an amout of time in seconds. * @return array associative array ($number => $unit) */ public function seconds_to_unit($seconds) { if ($seconds == 0) {
< return array(0, $this->_options['defaultunit']);
> return [0, $this->_options['defaultunit']];
} foreach ($this->get_units_used() as $unit => $notused) { if (fmod($seconds, $unit) == 0) {
< return array($seconds / $unit, $unit);
> return [$seconds / $unit, $unit];
} }
< return array($seconds, 1);
> return [$seconds, 1];
} /** * Override of standard quickforms method to create this element. */ function _createElements() { $attributes = $this->getAttributes(); if (is_null($attributes)) {
< $attributes = array();
> $attributes = [];
} if (!isset($attributes['size'])) { $attributes['size'] = 3; }
< $this->_elements = array();
> $this->_elements = [];
// E_STRICT creating elements without forms is nasty because it internally uses $this $number = $this->createFormElement('text', 'number', get_string('time', 'form'), $attributes, true); $number->set_force_ltr(true); $this->_elements[] = $number; unset($attributes['size']); $this->_elements[] = $this->createFormElement('select', 'timeunit', get_string('timeunit', 'form'), $this->get_units_used(), $attributes, true); // If optional we add a checkbox which the user can use to turn if on if($this->_options['optional']) { $this->_elements[] = $this->createFormElement('checkbox', 'enabled', null, get_string('enable'), $this->getAttributes(), true); } foreach ($this->_elements as $element){ if (method_exists($element, 'setHiddenLabel')){ $element->setHiddenLabel(true); } } } /** * Called by HTML_QuickForm whenever form event is made on this element * * @param string $event Name of event * @param mixed $arg event arguments * @param MoodleQuickForm $caller calling object * @return bool */ function onQuickFormEvent($event, $arg, &$caller) { $this->setMoodleForm($caller); switch ($event) { case 'updateValue': // constant values override both default and submitted ones // default values are overriden by submitted $value = $this->_findValue($caller->_constantValues); if (null === $value) { // if no boxes were checked, then there is no value in the array // yet we don't want to display default value in this case if ($caller->isSubmitted() && !$caller->is_new_repeat($this->getName())) { $value = $this->_findValue($caller->_submitValues); } else { $value = $this->_findValue($caller->_defaultValues); } } if (!is_array($value)) { list($number, $unit) = $this->seconds_to_unit($value);
< $value = array('number' => $number, 'timeunit' => $unit);
> $value = ['number' => $number, 'timeunit' => $unit];
// If optional, default to off, unless a date was provided if ($this->_options['optional']) { $value['enabled'] = $number != 0; } } else { $value['enabled'] = isset($value['enabled']); } if (null !== $value){ $this->setValue($value); } break; case 'createElement': if (!empty($arg[2]['optional'])) { $caller->disabledIf($arg[0], $arg[0] . '[enabled]'); } $caller->setType($arg[0] . '[number]', PARAM_FLOAT); return parent::onQuickFormEvent($event, $arg, $caller);
< break;
default: return parent::onQuickFormEvent($event, $arg, $caller); } } /** * Returns HTML for advchecbox form element. * * @return string */ function toHtml() { include_once('HTML/QuickForm/Renderer/Default.php'); $renderer = new HTML_QuickForm_Renderer_Default(); $renderer->setElementTemplate('{element}'); parent::accept($renderer); return $renderer->toHtml(); } /** * Accepts a renderer * * @param HTML_QuickForm_Renderer $renderer An HTML_QuickForm_Renderer object * @param bool $required Whether a group is required
< * @param string $error An error message associated with a group
> * @param ?string $error An error message associated with a group
*/ function accept(&$renderer, $required = false, $error = null) { $renderer->renderElement($this, $required, $error); } /** * Output a timestamp. Give it the name of the group. * Override of standard quickforms method. * * @param array $submitValues * @param bool $assoc whether to return the value as associative array * @return array field name => value. The value is the time interval in seconds. */ function exportValue(&$submitValues, $assoc = false) { // Get the values from all the child elements.
< $valuearray = array();
> $valuearray = [];
foreach ($this->_elements as $element) { $thisexport = $element->exportValue($submitValues[$this->getName()], true); if (!is_null($thisexport)) { $valuearray += $thisexport; } } // Convert the value to an integer number of seconds. if (empty($valuearray)) { return null; } if ($this->_options['optional'] && empty($valuearray['enabled'])) { return $this->_prepareValue(0, $assoc); } return $this->_prepareValue( (int) round($valuearray['number'] * $valuearray['timeunit']), $assoc); } }