MDL-24419 (4): Add conditional availability support to sections; section cache
Credit: original version done by Kirill Astashov of NetSpot (netspot.com.au), finished and tweaked by sam. This change adds conditional availability support for sections analagous to that already available for activities. (Backend, UI, backup/restore.) In order that this feature does not reduce performance, section cacheing has also been added using a new course 'sectioncache' field analagous to modinfo. The new feature integrates with activity availability so that activities inside sections which are not available are automatically not available themselves (meaning it works to restrict access).
This commit is contained in:
sam marshall
+150
-4
@@ -9,11 +9,9 @@ require_once($CFG->libdir.'/formslib.php');
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class editsection_form extends moodleform {
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function definition() {
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global $CFG, $DB;
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$mform = $this->_form;
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$course = $this->_customdata['course'];
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$mform->addElement('checkbox', 'usedefaultname', get_string('sectionusedefaultname'));
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$mform->setDefault('usedefaultname', true);
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@@ -30,8 +28,156 @@ class editsection_form extends moodleform {
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$mform->addElement('hidden', 'id');
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$mform->setType('id', PARAM_INT);
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//--------------------------------------------------------------------------------
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$this->add_action_buttons();
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$mform->_registerCancelButton('cancel');
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}
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public function definition_after_data() {
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global $CFG, $DB;
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$mform = $this->_form;
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$course = $this->_customdata['course'];
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if (!empty($CFG->enableavailability)) {
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// Grouping conditions - only if grouping is enabled at site level
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if (!empty($CFG->enablegroupmembersonly)) {
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$options = array();
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$options[0] = get_string('none');
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if ($groupings = $DB->get_records('groupings', array('courseid' => $course->id))) {
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foreach ($groupings as $grouping) {
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$context = context_course::instance($course->id);
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$options[$grouping->id] = format_string(
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$grouping->name, true, array('context' => $context));
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}
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}
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$mform->addElement('header', '', get_string('availabilityconditions', 'condition'));
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$mform->addElement('select', 'groupingid', get_string('groupingsection', 'group'), $options);
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$mform->addHelpButton('groupingid', 'groupingsection', 'group');
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}
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// Date and time conditions
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$mform->addElement('date_time_selector', 'availablefrom',
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get_string('availablefrom', 'condition'), array('optional' => true));
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$mform->addElement('date_time_selector', 'availableuntil',
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get_string('availableuntil', 'condition'), array('optional' => true));
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// Conditions based on grades
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$gradeoptions = array();
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$items = grade_item::fetch_all(array('courseid' => $course->id));
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$items = $items ? $items : array();
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foreach ($items as $id => $item) {
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$gradeoptions[$id] = $item->get_name();
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}
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asort($gradeoptions);
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$gradeoptions = array(0 => get_string('none', 'condition')) + $gradeoptions;
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$grouparray = array();
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$grouparray[] = $mform->createElement('select', 'conditiongradeitemid', '', $gradeoptions);
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$grouparray[] = $mform->createElement('static', '', '',
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' ' . get_string('grade_atleast', 'condition').' ');
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$grouparray[] = $mform->createElement('text', 'conditiongrademin', '', array('size' => 3));
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$grouparray[] = $mform->createElement('static', '', '',
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'% ' . get_string('grade_upto', 'condition') . ' ');
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$grouparray[] = $mform->createElement('text', 'conditiongrademax', '', array('size' => 3));
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$grouparray[] = $mform->createElement('static', '', '', '%');
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$group = $mform->createElement('group', 'conditiongradegroup',
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get_string('gradecondition', 'condition'), $grouparray);
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// Get full version (including condition info) of section object
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$ci = new condition_info_section($this->_customdata['cs']);
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$fullcs = $ci->get_full_section();
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$count = count($fullcs->conditionsgrade) + 1;
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// Grade conditions
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$this->repeat_elements(array($group), $count, array(), 'conditiongraderepeats',
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'conditiongradeadds', 2, get_string('addgrades', 'condition'), true);
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$mform->addHelpButton('conditiongradegroup[0]', 'gradecondition', 'condition');
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// Conditions based on completion
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$completion = new completion_info($course);
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if ($completion->is_enabled()) {
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$completionoptions = array();
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$modinfo = get_fast_modinfo($course);
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foreach($modinfo->cms as $id => $cm) {
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// Add each course-module if it:
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// (a) has completion turned on
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// (b) does not belong to current course-section
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if ($cm->completion && ($fullcs->id != $cm->section)) {
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$completionoptions[$id] = $cm->name;
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}
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}
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asort($completionoptions);
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$completionoptions = array(0 => get_string('none', 'condition')) +
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$completionoptions;
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$completionvalues = array(
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COMPLETION_COMPLETE => get_string('completion_complete', 'condition'),
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COMPLETION_INCOMPLETE => get_string('completion_incomplete', 'condition'),
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COMPLETION_COMPLETE_PASS => get_string('completion_pass', 'condition'),
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COMPLETION_COMPLETE_FAIL => get_string('completion_fail', 'condition'));
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$grouparray = array();
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$grouparray[] = $mform->createElement('select', 'conditionsourcecmid', '',
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$completionoptions);
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$grouparray[] = $mform->createElement('select', 'conditionrequiredcompletion', '',
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$completionvalues);
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$group = $mform->createElement('group', 'conditioncompletiongroup',
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get_string('completioncondition', 'condition'), $grouparray);
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$count = count($fullcs->conditionscompletion) + 1;
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$this->repeat_elements(array($group), $count,array(),
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'conditioncompletionrepeats', 'conditioncompletionadds', 2,
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get_string('addcompletions', 'condition'), true);
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$mform->addHelpButton('conditioncompletiongroup[0]',
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'completionconditionsection', 'condition');
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}
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// Availability conditions - set up form values
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if (!empty($CFG->enableavailability)) {
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$num = 0;
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foreach ($fullcs->conditionsgrade as $gradeitemid => $minmax) {
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$groupelements = $mform->getElement(
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'conditiongradegroup[' . $num . ']')->getElements();
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$groupelements[0]->setValue($gradeitemid);
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$groupelements[2]->setValue(is_null($minmax->min) ? '' :
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format_float($minmax->min, 5, true, true));
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$groupelements[4]->setValue(is_null($minmax->max) ? '' :
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format_float($minmax->max, 5, true, true));
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$num++;
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}
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if ($completion->is_enabled()) {
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$num = 0;
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foreach($fullcs->conditionscompletion as $othercmid => $state) {
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$groupelements = $mform->getElement('conditioncompletiongroup[' . $num . ']')->getElements();
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$groupelements[0]->setValue($othercmid);
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$groupelements[1]->setValue($state);
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$num++;
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}
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}
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}
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// Do we display availability info to students?
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$showhide = array(
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CONDITION_STUDENTVIEW_SHOW => get_string('showavailabilitysection_show', 'condition'),
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CONDITION_STUDENTVIEW_HIDE => get_string('showavailabilitysection_hide', 'condition'));
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$mform->addElement('select', 'showavailability',
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get_string('showavailabilitysection', 'condition'), $showhide);
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$mform->setDefault('showavailability', $this->_customdata['showavailability']);
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}
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$this->add_action_buttons();
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}
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public function validation($data, $files) {
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$errors = parent::validation($data, $files);
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// Conditions: Don't let them set dates which make no sense
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if (array_key_exists('availablefrom', $data) &&
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$data['availablefrom'] && $data['availableuntil'] &&
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$data['availablefrom'] > $data['availableuntil']) {
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$errors['availablefrom'] = get_string('badavailabledates', 'condition');
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}
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return $errors;
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}
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}
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