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MDL-29501 Gradebook should not show links to activities that aren't available to user

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This commit is contained in:
sam marshall 2011-10-10 17:25:06 +01:00
parent 6731a04d93
commit 73ca5f01c5
1 changed files with 54 additions and 18 deletions
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72
grade/lib.php
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@ -1002,6 +1002,14 @@ class grade_structure {
public $courseid;
/**
* Reference to modinfo for current course (for performance, to save
* retrieving it from courseid every time). Not actually set except for
* the grade_tree type.
* @var course_modinfo
*/
public $modinfo;
/**
* 1D array of grade items only
*/
@ -1104,8 +1112,6 @@ class grade_structure {
* @return string header
*/
public function get_element_header(&$element, $withlink=false, $icon=true, $spacerifnone=false) {
global $CFG;
$header = '';
if ($icon) {
@ -1119,31 +1125,54 @@ class grade_structure {
return $header;
}
$itemtype = $element['object']->itemtype;
$itemmodule = $element['object']->itemmodule;
$iteminstance = $element['object']->iteminstance;
if ($withlink and $itemtype=='mod' and $iteminstance and $itemmodule) {
if ($cm = get_coursemodule_from_instance($itemmodule, $iteminstance, $this->courseid)) {
if ($withlink) {
$url = $this->get_activity_link($element);
if ($url) {
$a = new stdClass();
$a->name = get_string('modulename', $element['object']->itemmodule);
$title = get_string('linktoactivity', 'grades', $a);
$dir = $CFG->dirroot.'/mod/'.$itemmodule;
if (file_exists($dir.'/grade.php')) {
$url = $CFG->wwwroot.'/mod/'.$itemmodule.'/grade.php?id='.$cm->id;
} else {
$url = $CFG->wwwroot.'/mod/'.$itemmodule.'/view.php?id='.$cm->id;
}
$header = '<a href="'.$url.'" title="'.s($title).'">'.$header.'</a>';
$header = html_writer::link($url, $header, array('title' => $title));
}
}
return $header;
}
private function get_activity_link($element) {
global $CFG;
$itemtype = $element['object']->itemtype;
$itemmodule = $element['object']->itemmodule;
$iteminstance = $element['object']->iteminstance;
// Links only for module items that have valid instance, module and are
// called from grade_tree with valid modinfo
if ($itemtype != 'mod' || !$iteminstance || !$itemmodule || !$this->modinfo) {
return null;
}
// Get $cm efficiently and with visibility information using modinfo
$instances = $this->modinfo->get_instances();
if (empty($instances[$itemmodule][$iteminstance])) {
return null;
}
$cm = $instances[$itemmodule][$iteminstance];
// Do not add link if activity is not visible to the current user
if (!$cm->uservisible) {
return null;
}
// If module has grade.php, link to that, otherwise view.php
$dir = $CFG->dirroot . '/mod/' . $itemmodule;
if (file_exists($dir.'/grade.php')) {
return new moodle_url('/mod/' . $itemmodule . '/grade.php', array('id' => $cm->id));
} else {
return new moodle_url('/mod/' . $itemmodule . '/view.php', array('id' => $cm->id));
}
}
/**
* Returns the grade eid - the grade may not exist yet.
*
@ -1600,12 +1629,19 @@ class grade_tree extends grade_structure {
*/
public function grade_tree($courseid, $fillers=true, $category_grade_last=false,
$collapsed=null, $nooutcomes=false) {
global $USER, $CFG;
global $USER, $CFG, $COURSE, $DB;
$this->courseid = $courseid;
$this->levels = array();
$this->context = get_context_instance(CONTEXT_COURSE, $courseid);
if (!empty($COURSE->id) && $COURSE->id == $this->courseid) {
$course = $COURSE;
} else {
$course = $DB->get_record('course', array('id' => $this->courseid));
}
$this->modinfo = get_fast_modinfo($course);
// get course grade tree
$this->top_element = grade_category::fetch_course_tree($courseid, true);