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MDL-48634 grades: Add an option to rescale when changing the maxgrade

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Damyon Wiese 2015-04-15 07:57:28 -04:00 • committed by Mark Nelson
parent 9d5d9c64ff
commit d629c601c5
12 changed files with 422 additions and 11 deletions
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51
lib/form/modgrade.php
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@ -43,14 +43,29 @@ require_once($CFG->dirroot.'/lib/grade/grade_scale.php');
* @copyright 2006 Jamie Pratt <me@jamiep.org>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
class MoodleQuickForm_modgrade extends MoodleQuickForm_group {
/** @var boolean $isupdate Is this an add or an update ? */
public $isupdate = false;
/** @var float $currentgrade The current grademax for the grade_item */
public $currentgrade = false;
/** @var boolean $hasgrades Has this grade_item got any real grades (with values) */
public $hasgrades = false;
/** @var boolean $canrescale Does this activity support rescaling grades? */
public $canrescale = false;
/**
* Constructor
*
* @param string $elementname Element's name
* @param mixed $elementlabel Label(s) for an element
* @param array $options Options to control the element's display. Not used.
* @param array $options Options to control the element's display. Required - must contain the following options:
* 'isupdate' - is this a new module or are we editing an existing one?
* 'currentgrade' - the current grademax in the database for this gradeitem
* 'hasgrades' - whether or not the grade_item has existing grade_grades
* @param mixed $attributes Either a typical HTML attribute string or an associative array
*/
public function __construct($elementname = null, $elementlabel = null, $options = array(), $attributes = null) {
@ -59,6 +74,13 @@ class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
$this->_persistantFreeze = true;
$this->_appendName = true;
$this->_type = 'modgrade';
$this->isupdate = !empty($options['isupdate']);
$this->currentgrade = false;
if (isset($options['currentgrade'])) {
$this->currentgrade = $options['currentgrade'];
}
$this->hasgrades = !empty($options['hasgrades']);
$this->canrescale = !empty($options['canrescale']);
}
/**
@ -75,7 +97,7 @@ class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
* Create elements for this group.
*/
public function _createElements() {
global $COURSE, $CFG;
global $COURSE, $CFG, $OUTPUT;
$attributes = $this->getAttributes();
if (is_null($attributes)) {
$attributes = array();
@ -113,6 +135,16 @@ class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
$typeselectid = $this->generate_modgrade_subelement_id('modgrade_type');
$typeselect->updateAttributes(array('id' => $typeselectid));
// Check box for options for processing existing grades.
if ($this->isupdate && $this->hasgrades && $this->canrescale) {
$langrescalegrades = get_string('modgraderescalegrades', 'grades');
$rescalegradesselect = @MoodleQuickForm::createElement('selectyesno',
'modgrade_rescalegrades',
$langrescalegrades);
$rescalegradesselect->_generateId();
$rescalegradesid = $rescalegradesselect->getAttribute('id');
}
// Add elements.
// Grade type select box.
@ -132,6 +164,15 @@ class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
$this->_elements[] = @MoodleQuickForm::createElement('static', 'pointlabel', '', $label);
$this->_elements[] = $maxgrade;
$this->_elements[] = @MoodleQuickForm::createElement('static', 'pointspacer', '', '<br />');
if ($this->isupdate && $this->hasgrades && $this->canrescale) {
// We need to know how to apply any changes to maxgrade - ie to either update, or don't touch exising grades.
$label = html_writer::tag('label', $rescalegradesselect->getLabel(), array('for' => $rescalegradesid));
$labelhelp = new help_icon('modgraderescalegrades', 'grades');
$this->_elements[] = @MoodleQuickForm::createElement('static', 'scalelabel', '', $label . $OUTPUT->render($labelhelp));
$this->_elements[] = $rescalegradesselect;
$this->_elements[] = @MoodleQuickForm::createElement('static', 'scalespacer', '', '<br />');
}
}
/**
@ -156,8 +197,9 @@ class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
$type = (isset($vals['modgrade_type'])) ? $vals['modgrade_type'] : 'none';
$point = (isset($vals['modgrade_point'])) ? $vals['modgrade_point'] : null;
$scale = (isset($vals['modgrade_scale'])) ? $vals['modgrade_scale'] : null;
$rescalegrades = (isset($vals['modgrade_rescalegrades'])) ? $vals['modgrade_rescalegrades'] : null;
$return = $this->process_value($type, $scale, $point);
return array($this->getName() => $return);
return array($this->getName() => $return, $this->getName() . '_rescalegrades' => $rescalegrades);
}
/**
@ -231,6 +273,7 @@ class MoodleQuickForm_modgrade extends MoodleQuickForm_group{
// Set disable actions.
$caller->disabledIf($name.'[modgrade_scale]', $name.'[modgrade_type]', 'neq', 'scale');
$caller->disabledIf($name.'[modgrade_point]', $name.'[modgrade_type]', 'neq', 'point');
$caller->disabledIf($name.'[modgrade_rescalegrades]', $name.'[modgrade_type]', 'neq', 'point');
// Set validation rules for the sub-elements belonging to this element.
// A handy note: the parent scope of a closure is the function in which the closure was declared.