/**
* Initialise the iterator
* @return boolean success
*/
public function init()
{
global $CFG, $DB;
$this->close();
grade_regrade_final_grades($this->course->id);
$course_item = grade_item::fetch_course_item($this->course->id);
if ($course_item->needsupdate) {
// can not calculate all final grades - sorry
return false;
}
$coursecontext = get_context_instance(CONTEXT_COURSE, $this->course->id);
$relatedcontexts = get_related_contexts_string($coursecontext);
list($gradebookroles_sql, $params) = $DB->get_in_or_equal(explode(',', $CFG->gradebookroles), SQL_PARAMS_NAMED, 'grbr');
//limit to users with an active enrolment
list($enrolledsql, $enrolledparams) = get_enrolled_sql($coursecontext);
$params = array_merge($params, $enrolledparams);
if ($this->groupid) {
$groupsql = "INNER JOIN {groups_members} gm ON gm.userid = u.id";
$groupwheresql = "AND gm.groupid = :groupid";
// $params contents: gradebookroles
$params['groupid'] = $this->groupid;
} else {
$groupsql = "";
$groupwheresql = "";
}
if (empty($this->sortfield1)) {
// we must do some sorting even if not specified
$ofields = ", u.id AS usrt";
$order = "usrt ASC";
} else {
$ofields = ", u.{$this->sortfield1} AS usrt1";
$order = "usrt1 {$this->sortorder1}";
if (!empty($this->sortfield2)) {
$ofields .= ", u.{$this->sortfield2} AS usrt2";
$order .= ", usrt2 {$this->sortorder2}";
}
if ($this->sortfield1 != 'id' and $this->sortfield2 != 'id') {
// user order MUST be the same in both queries,
// must include the only unique user->id if not already present
$ofields .= ", u.id AS usrt";
$order .= ", usrt ASC";
}
}
// $params contents: gradebookroles and groupid (for $groupwheresql)
$users_sql = "SELECT u.* {$ofields}\n FROM {user} u\n JOIN ({$enrolledsql}) je ON je.id = u.id\n {$groupsql}\n JOIN (\n SELECT DISTINCT ra.userid\n FROM {role_assignments} ra\n WHERE ra.roleid {$gradebookroles_sql}\n AND ra.contextid {$relatedcontexts}\n ) rainner ON rainner.userid = u.id\n WHERE u.deleted = 0\n {$groupwheresql}\n ORDER BY {$order}";
$this->users_rs = $DB->get_recordset_sql($users_sql, $params);
if (!empty($this->grade_items)) {
$itemids = array_keys($this->grade_items);
list($itemidsql, $grades_params) = $DB->get_in_or_equal($itemids, SQL_PARAMS_NAMED, 'items');
$params = array_merge($params, $grades_params);
// $params contents: gradebookroles, enrolledparams, groupid (for $groupwheresql) and itemids
$grades_sql = "SELECT g.* {$ofields}\n FROM {grade_grades} g\n JOIN {user} u ON g.userid = u.id\n JOIN ({$enrolledsql}) je ON je.id = u.id\n {$groupsql}\n JOIN (\n SELECT DISTINCT ra.userid\n FROM {role_assignments} ra\n WHERE ra.roleid {$gradebookroles_sql}\n AND ra.contextid {$relatedcontexts}\n ) rainner ON rainner.userid = u.id\n WHERE u.deleted = 0\n AND g.itemid {$itemidsql}\n {$groupwheresql}\n ORDER BY {$order}, g.itemid ASC";
$this->grades_rs = $DB->get_recordset_sql($grades_sql, $params);
} else {
$this->grades_rs = false;
}
return true;
}
/**
* Get list of course participants.
*
* @param int $courseid
* @param text $withcapability
* @param int $groupid
* @param bool $onlyactive
* @return array of course participants
*/
public static function get_enrolled_users($courseid, $withcapability = null, $groupid = null, $onlyactive = false)
{
global $DB, $CFG, $USER;
// Do basic automatic PARAM checks on incoming data, using params description
// If any problems are found then exceptions are thrown with helpful error messages
$params = self::validate_parameters(self::get_enrolled_users_parameters(), array('courseid' => $courseid, 'withcapability' => $withcapability, 'groupid' => $groupid, 'onlyactive' => $onlyactive));
$coursecontext = get_context_instance(CONTEXT_COURSE, $params['courseid']);
if ($courseid == SITEID) {
$context = get_context_instance(CONTEXT_SYSTEM);
} else {
$context = $coursecontext;
}
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->courseid = $params['courseid'];
throw new moodle_exception(get_string('errorcoursecontextnotvalid', 'webservice', $exceptionparam));
}
if ($courseid == SITEID) {
require_capability('moodle/site:viewparticipants', $context);
} else {
require_capability('moodle/course:viewparticipants', $context);
}
if ($withcapability) {
require_capability('moodle/role:review', $coursecontext);
}
if ($groupid && groups_is_member($groupid)) {
require_capability('moodle/site:accessallgroups', $coursecontext);
}
if ($onlyactive) {
require_capability('moodle/course:enrolreview', $coursecontext);
}
list($sqlparams, $params) = get_enrolled_sql($coursecontext, $withcapability, $groupid, $onlyactive);
$sql = "SELECT ue.userid, e.courseid, u.firstname, u.lastname, u.username, c.id as usercontextid\n FROM {user_enrolments} ue\n JOIN {enrol} e ON (e.id = ue.enrolid)\n JOIN {user} u ON (ue.userid = u.id)\n JOIN {context} c ON (u.id = c.instanceid AND contextlevel = " . CONTEXT_USER . ")\n WHERE e.courseid = :courseid AND ue.userid IN ({$sqlparams})\n GROUP BY ue.userid, e.courseid, u.firstname, u.lastname, u.username, c.id";
$params['courseid'] = $courseid;
$enrolledusers = $DB->get_records_sql($sql, $params);
$result = array();
$isadmin = is_siteadmin($USER);
$canviewfullnames = has_capability('moodle/site:viewfullnames', $context);
foreach ($enrolledusers as $enrolleduser) {
$profilimgurl = moodle_url::make_pluginfile_url($enrolleduser->usercontextid, 'user', 'icon', NULL, '/', 'f1');
$profilimgurlsmall = moodle_url::make_pluginfile_url($enrolleduser->usercontextid, 'user', 'icon', NULL, '/', 'f2');
$resultuser = array('courseid' => $enrolleduser->courseid, 'userid' => $enrolleduser->userid, 'fullname' => fullname($enrolleduser), 'profileimgurl' => $profilimgurl->out(false), 'profileimgurlsmall' => $profilimgurlsmall->out(false));
// check if we can return username
if ($isadmin) {
$resultuser['username'] = $enrolleduser->username;
}
// check if we can return first and last name
if ($isadmin or $canviewfullnames) {
$resultuser['firstname'] = $enrolleduser->firstname;
$resultuser['lastname'] = $enrolleduser->lastname;
}
$result[] = $resultuser;
}
return $result;
}
public function find_users($search) {
global $DB, $USER;
$mailmaxusers = (isset($CFG->maxusersperpage) ? $CFG->maxusersperpage : $this->maxusersperpage);
$context = context_course::instance($this->courseid);
$mailsamerole = has_capability('local/mail:mailsamerole', $context);
$userroleids = local_mail_get_user_roleids($USER->id, $context);
list($wherecondition, $params) = $this->search_sql($search, 'u');
list($enrolledsql, $enrolledparams) = get_enrolled_sql($context, '', $this->groupid, true);
list($parentsql, $parentparams) = $DB->get_in_or_equal($context->get_parent_context_ids(true), SQL_PARAMS_NAMED);
$params = array_merge($params, $enrolledparams, $parentparams);
$params['courseid'] = $this->courseid;
if (!$mailsamerole) {
list($relctxsql, $reldctxparams) = $DB->get_in_or_equal($context->get_parent_context_ids(true), SQL_PARAMS_NAMED, 'relctx');
list($samerolesql, $sameroleparams) = $DB->get_in_or_equal($userroleids, SQL_PARAMS_NAMED, 'samerole' , false);
$wherecondition .= " AND u.id IN (SELECT userid FROM {role_assignments} WHERE roleid $samerolesql AND contextid $relctxsql)";
$params = array_merge($params, $sameroleparams, $reldctxparams);
}
$fields = 'SELECT r.id AS roleid, '
. 'r.shortname AS roleshortname, '
. 'r.name AS rolename, '
. 'u.id AS userid, '
. $this->required_fields_sql('u');
$countfields = 'SELECT COUNT(1)';
$sql = ' FROM {user} u JOIN (' . $enrolledsql . ') e ON e.id = u.id'
. ' LEFT JOIN {role_assignments} ra ON (ra.userid = u.id AND ra.contextid '
. $parentsql . ')'
. ' LEFT JOIN {role} r ON r.id = ra.roleid'
. ' WHERE ' . $wherecondition;
$order = ' ORDER BY r.sortorder, u.lastname ASC, u.firstname ASC';
if (!$this->is_validating()) {
$count = $DB->count_records_sql($countfields . $sql, $params);
if ($count > $mailmaxusers) {
return $this->too_many_results($search, $count);
}
}
$rs = $DB->get_recordset_sql($fields . $sql . $order, $params);
$roles = groups_calculate_role_people($rs, $context);
return $this->convert_array_format($roles, $search);
}
/**
* Finds all subscribed users
*
* @param string $search
* @return array
*/
public function find_users($search)
{
global $DB;
list($wherecondition, $params) = $this->search_sql($search, 'u');
$params['forumid'] = $this->forumid;
// only active enrolled or everybody on the frontpage
list($esql, $eparams) = get_enrolled_sql($this->context, '', $this->currentgroup, true);
$fields = $this->required_fields_sql('u');
list($sort, $sortparams) = users_order_by_sql('u', $search, $this->accesscontext);
$params = array_merge($params, $eparams, $sortparams);
$subscribers = $DB->get_records_sql("SELECT {$fields}\n FROM {user} u\n JOIN ({$esql}) je ON je.id = u.id\n JOIN {forum_subscriptions} s ON s.userid = u.id\n WHERE {$wherecondition} AND s.forum = :forumid\n ORDER BY {$sort}", $params);
return array(get_string("existingsubscribers", 'forum') => $subscribers);
}
/**
* Get list of course participants.
*
* @param int $courseid
* @param text $withcapability
* @param int $groupid
* @param bool $onlyactive
* @return array of course participants
*/
public static function get_enrolled_users($courseid, $withcapability, $groupid, $onlyactive)
{
global $DB;
// Do basic automatic PARAM checks on incoming data, using params description
// If any problems are found then exceptions are thrown with helpful error messages
$params = self::validate_parameters(self::get_enrolled_users_parameters(), array('courseid' => $courseid, 'withcapability' => $withcapability, 'groupid' => $groupid, 'onlyactive' => $onlyactive));
$coursecontext = get_context_instance(CONTEXT_COURSE, $params['courseid']);
if ($courseid == SITEID) {
$context = get_context_instance(CONTEXT_SYSTEM);
} else {
$context = $coursecontext;
}
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->courseid = $params['courseid'];
throw new moodle_exception(get_string('errorcoursecontextnotvalid', 'webservice', $exceptionparam));
}
if ($courseid == SITEID) {
require_capability('moodle/site:viewparticipants', $context);
} else {
require_capability('moodle/course:viewparticipants', $context);
}
if ($withcapability) {
require_capability('moodle/role:review', $coursecontext);
}
if ($groupid) {
if (groups_is_member($groupid)) {
require_capability('moodle/site:accessallgroups', $coursecontext);
}
}
if ($onlyactive) {
require_capability('moodle/course:enrolreview', $coursecontext);
}
list($sql, $params) = get_enrolled_sql($coursecontext, $withcapability, $groupid, $onlyactive);
$sql = "SELECT DISTINCT ue.userid, e.courseid\n FROM {user_enrolments} ue\n JOIN {enrol} e ON (e.id = ue.enrolid)\n WHERE e.courseid = :courseid AND ue.userid IN ({$sql})";
$params['courseid'] = $courseid;
$enrolledusers = $DB->get_records_sql($sql, $params);
$result = array();
foreach ($enrolledusers as $enrolleduser) {
$result[] = array('courseid' => $enrolleduser->courseid, 'userid' => $enrolleduser->userid);
}
return $result;
}
/**
* Finds all subscribed users
*
* @param string $search
* @return array
*/
public function find_users($search)
{
global $DB;
list($wherecondition, $params) = $this->search_sql($search, 'u');
$params['twfid'] = $this->twfid;
// only active enrolled or everybody on the frontpage
list($esql, $eparams) = get_enrolled_sql($this->context, '', $this->currentgroup, true);
$fields = $this->required_fields_sql('u');
list($sort, $sortparams) = users_order_by_sql('u', $search, $this->accesscontext);
$params = array_merge($params, $eparams, $sortparams);
$subscribers = $DB->get_records_sql("SELECT {$fields}\n FROM {user} u\n JOIN ({$esql}) je ON je.id = u.id\n JOIN {twf_subscriptions} s ON s.userid = u.id\n WHERE {$wherecondition} AND s.twf = :twfid\n ORDER BY {$sort}", $params);
$cm = get_coursemodule_from_instance('twf', $this->twfid);
$modinfo = get_fast_modinfo($cm->course);
$info = new \core_availability\info_module($modinfo->get_cm($cm->id));
$subscribers = $info->filter_user_list($subscribers);
return array(get_string("existingsubscribers", 'twf') => $subscribers);
}
/**
* Handles searching for user in a particular course in the message area.
*
* @param int $userid The user id doing the searching
* @param int $courseid The id of the course we are searching in
* @param string $search The string the user is searching
* @param int $limitfrom
* @param int $limitnum
* @return array
*/
public static function search_users_in_course($userid, $courseid, $search, $limitfrom = 0, $limitnum = 0)
{
global $DB;
// Get all the users in the course.
list($esql, $params) = get_enrolled_sql(\context_course::instance($courseid), '', 0, true);
$sql = "SELECT u.*, mc.blocked\n FROM {user} u\n JOIN ({$esql}) je\n ON je.id = u.id\n LEFT JOIN {message_contacts} mc\n ON (mc.contactid = u.id AND mc.userid = :userid)\n WHERE u.deleted = 0";
// Add more conditions.
$fullname = $DB->sql_fullname();
$sql .= " AND u.id != :userid2\n AND " . $DB->sql_like($fullname, ':search', false) . "\n ORDER BY " . $DB->sql_fullname();
$params = array_merge(array('userid' => $userid, 'userid2' => $userid, 'search' => '%' . $search . '%'), $params);
// Convert all the user records into contacts.
$contacts = array();
if ($users = $DB->get_records_sql($sql, $params, $limitfrom, $limitnum)) {
foreach ($users as $user) {
$contacts[] = helper::create_contact($user);
}
}
return $contacts;
}
function getUserList($currentgroup = '', $courseId, $contextlevel, $context, $limitUsers = 15)
{
global $USER, $CFG, $DB, $OUTPUT;
$groupmembers = "";
$groupselect = "";
$params = array();
//Add this to the SQL to show only group users
if ($currentgroup !== NULL) {
$groupmembers = ", {groups_members} gm";
$groupselect = "AND u.id = gm.userid AND gm.groupid = :currentgroup";
$params['currentgroup'] = $currentgroup;
}
$userfields = user_picture::fields('u', array('username'));
if ($courseId == SITEID or $contextlevel < CONTEXT_COURSE) {
// Site-level
//Only show if is admin
if (!checkIfUserIsAdmin()) {
return '';
}
$sql = "SELECT {$userfields}, ul.lastip, MAX(ul.timemodified) AS lastaccess\n FROM {user} u {$groupmembers} ,{sessions} ul\n WHERE u.id = ul.userid AND u.deleted = 0\n {$groupselect}\n GROUP BY {$userfields}\n ORDER BY ul.timemodified DESC ";
} else {
// Course level - show only enrolled users for now
//Only show if is teacher or admin
if (!checkIfUserIsTeacher($courseId)) {
return '';
}
list($esqljoin, $eparams) = get_enrolled_sql($context);
$params = array_merge($params, $eparams);
$sql = "SELECT {$userfields}, ul.lastip, MAX(ul.timemodified) AS lastaccess\n FROM {sessions} ul {$groupmembers}, {user} u\n JOIN ({$esqljoin}) euj ON euj.id = u.id\n WHERE u.id = ul.userid\n AND u.deleted = 0\n {$groupselect}\n GROUP BY {$userfields}\n ORDER BY lastaccess DESC";
$params['courseid'] = $courseId;
}
if ($users = $DB->get_records_sql($sql, $params, 0, $limitUsers)) {
// We'll just take the most recent 50 maximum
foreach ($users as $user) {
$users[$user->id]->fullname = fullname($user);
}
} else {
$users = array();
}
return $users;
}
public function find_users($search)
{
global $DB;
$context = context_course::instance($this->courseid);
list($wherecondition, $params) = $this->search_sql($search, 'u');
list($enrolledsql, $enrolledparams) = get_enrolled_sql($context, '', $this->groupid, true);
$params = array_merge($params, $enrolledparams);
$params['courseid'] = $this->courseid;
$fields = 'SELECT r.id AS roleid, ' . 'r.shortname AS roleshortname, ' . 'r.name AS rolename, ' . 'u.id AS userid, ' . $this->required_fields_sql('u');
$countfields = 'SELECT COUNT(1)';
$sql = ' FROM {user} u JOIN (' . $enrolledsql . ') e ON e.id = u.id' . ' LEFT JOIN {role_assignments} ra ON (ra.userid = u.id AND ra.contextid ' . get_related_contexts_string($context) . ')' . ' LEFT JOIN {role} r ON r.id = ra.roleid' . ' WHERE ' . $wherecondition;
$order = ' ORDER BY r.sortorder, u.lastname ASC, u.firstname ASC';
if (!$this->is_validating()) {
$count = $DB->count_records_sql($countfields . $sql, $params);
if ($count > 100) {
return $this->too_many_results($search, $count);
}
}
$rs = $DB->get_recordset_sql($fields . $sql . $order, $params);
$roles = groups_calculate_role_people($rs, $context);
return $this->convert_array_format($roles, $search);
}
function forumngfeature_usage_show_mostreaders($params, $forum = null)
{
global $DB, $PAGE;
$cloneid = empty($params['clone']) ? 0 : $params['clone'];
if ($forum == null) {
if (empty($params['id'])) {
throw new moodle_exception('Missing forum id param');
}
$forum = mod_forumng::get_from_cmid($params['id'], $cloneid);
}
$groupwhere = '';
$groupparams = array();
$groupid = 0;
if (!empty($params['group']) && $params['group'] != mod_forumng::NO_GROUPS && $params['group'] != mod_forumng::ALL_GROUPS) {
$groupwhere = 'AND (fd.groupid = :groupid OR fd.groupid IS NULL)';
$groupid = $params['group'];
$groupparams = array('groupid' => $groupid);
}
if (has_capability('mod/forumng:viewreadinfo', $forum->get_context())) {
if (!$PAGE->has_set_url()) {
// Set context when called via ajax.
$PAGE->set_context($forum->get_context());
}
$renderer = $PAGE->get_renderer('forumngfeature_usage');
// Only get enrolled users - speeds up query significantly on large forums.
list($sql, $params) = get_enrolled_sql($forum->get_context(), '', $groupid, true);
// View discussions read.
$readers = $DB->get_recordset_sql("\n SELECT COUNT(fr.userid) AS count, fr.discussionid\n FROM {forumng_discussions} fd\n RIGHT JOIN (\n\t\t SELECT discussionid, userid\n\t\t FROM (\n\t\t SELECT * FROM {forumng_read}\n\t\t UNION ALL\n\t\t SELECT frp.id, frp.userid, fp.discussionid, frp.time\n FROM {forumng_posts} fp\n RIGHT JOIN {forumng_read_posts} frp ON fp.id = frp.postid\n WHERE fp.deleted = 0 AND fp.oldversion = 0\n ) frp GROUP BY discussionid, userid\n ) fr ON fr.discussionid = fd.id\n WHERE fd.forumngid = :courseid\n AND fd.deleted = 0\n {$groupwhere}\n AND fr.userid IN({$sql})\n GROUP BY fr.discussionid\n ORDER BY count desc, fr.discussionid desc", array_merge(array('courseid' => $forum->get_id()), $groupparams, $params), 0, 5);
$readerlist = array();
foreach ($readers as $discuss) {
$discussion = mod_forumng_discussion::get_from_id($discuss->discussionid, $cloneid);
list($content, $user) = $renderer->render_usage_discussion_info($forum, $discussion);
$readerlist[] = $renderer->render_usage_list_item($forum, $discuss->count, $user, $content);
}
return $renderer->render_usage_list($readerlist, 'mostreaders', false);
}
}
/**
* Returns unread messages count and courses
* @return array
*/
public static function count_unread_and_courses_messages($userid = '0')
{
global $DB, $USER;
//Parameter validation
//REQUIRED
$params = self::validate_parameters(self::count_unread_messages_parameters(), array('userid' => $userid));
//Context validation
//OPTIONAL but in most web service it should present
$context = get_context_instance(CONTEXT_USER, $USER->id);
self::validate_context($context);
//Capability checking
//OPTIONAL but in most web service it should present
if (!has_capability('moodle/user:viewdetails', $context)) {
throw new moodle_exception('cannotviewprofile');
}
$messagecount = $DB->count_records_select('message', 'useridto=' . (int) $userid);
$courses = enrol_get_users_courses($params['userid'], true, 'id, shortname, fullname, idnumber, visible');
$result = array('messagecount' => $messagecount, 'courses' => array());
foreach ($courses as $course) {
$context = context_course::instance($course->id, IGNORE_MISSING);
try {
self::validate_context($context);
} catch (Exception $e) {
// current user can not access this course, sorry we can not disclose who is enrolled in this course!
continue;
}
if ($userid != $USER->id and !has_capability('moodle/course:viewparticipants', $context)) {
// we need capability to view participants
continue;
}
list($enrolledsqlselect, $enrolledparams) = get_enrolled_sql($context);
$enrolledsql = "SELECT COUNT('x') FROM ({$enrolledsqlselect}) enrolleduserids";
$enrolledusercount = $DB->count_records_sql($enrolledsql, $enrolledparams);
$result['courses'][] = array('id' => $course->id, 'shortname' => $course->shortname, 'fullname' => $course->fullname, 'idnumber' => $course->idnumber, 'visible' => $course->visible, 'enrolledusercount' => $enrolledusercount);
}
return $result;
}
public function find_users($search)
{
global $DB;
list($enrolsql, $eparams) = get_enrolled_sql($this->context);
// Now we have to go to the database.
list($wherecondition, $params) = $this->search_sql($search, 'u');
$params = array_merge($params, $eparams);
if ($wherecondition) {
$wherecondition = ' AND ' . $wherecondition;
}
$fields = 'SELECT ' . $this->required_fields_sql('u');
$countfields = 'SELECT COUNT(u.id)';
$sql = " FROM ({$enrolsql}) enrolled_users_view\n JOIN {user} u ON u.id = enrolled_users_view.id\n LEFT JOIN {role_assignments} ra ON (ra.userid = enrolled_users_view.id AND\n ra.roleid = :roleid AND ra.contextid = :contextid)\n WHERE ra.id IS NULL\n {$wherecondition}";
$params['contextid'] = $this->context->id;
$params['roleid'] = $this->roleid;
list($sort, $sortparams) = users_order_by_sql('u', $search, $this->accesscontext);
$order = ' ORDER BY ' . $sort;
// Check to see if there are too many to show sensibly.
if (!$this->is_validating()) {
$potentialmemberscount = $DB->count_records_sql($countfields . $sql, $params);
if ($potentialmemberscount > $this->maxusersperpage) {
return $this->too_many_results($search, $potentialmemberscount);
}
}
// If not, show them.
$availableusers = $DB->get_records_sql($fields . $sql . $order, array_merge($params, $sortparams));
if (empty($availableusers)) {
return array();
}
if ($search) {
$groupname = get_string('potusersmatching', 'core_role', $search);
} else {
$groupname = get_string('potusers', 'core_role');
}
return array($groupname => $availableusers);
}
/**
* Finds all subscribed users
*
* @param string $search
* @return array
*/
public function find_users($search) {
global $DB;
list($wherecondition, $params) = $this->search_sql($search, 'u');
$params['forumid'] = $this->forumid;
// only active enrolled or everybody on the frontpage
list($esql, $eparams) = get_enrolled_sql($this->context, '', $this->currentgroup, true);
$params = array_merge($params, $eparams);
$fields = $this->required_fields_sql('u');
$subscribers = $DB->get_records_sql("SELECT $fields
FROM {user} u
JOIN ($esql) je ON je.id = u.id
JOIN {forum_subscriptions} s ON s.userid = u.id
WHERE $wherecondition AND s.forum = :forumid
ORDER BY u.lastname ASC, u.firstname ASC", $params);
return array(get_string("existingsubscribers", 'forum') => $subscribers);
}
/**
* Return array of users whose progress is tracked in this course.
*
* Optionally supply a search's where clause, group id, sorting, paging.
*
* @param string $where Where clause sql, referring to 'u.' fields (optional)
* @param array $whereparams Where clause params (optional)
* @param int $groupid Group ID to restrict to (optional)
* @param string $sort Order by clause (optional)
* @param int $limitfrom Result start (optional)
* @param int $limitnum Result max size (optional)
* @param context $extracontext If set, includes extra user information fields
* as appropriate to display for current user in this context
* @return array Array of user objects with standard user fields
*/
public function get_tracked_users($where = '', $whereparams = array(), $groupid = 0, $sort = '', $limitfrom = '', $limitnum = '', context $extracontext = null)
{
global $DB;
list($enrolledsql, $params) = get_enrolled_sql(context_course::instance($this->course->id), 'moodle/course:isincompletionreports', $groupid, true);
$sql = 'SELECT u.id, u.firstname, u.lastname, u.idnumber';
if ($extracontext) {
$sql .= get_extra_user_fields_sql($extracontext, 'u', '', array('idnumber'));
}
$sql .= ' FROM (' . $enrolledsql . ') eu JOIN {user} u ON u.id = eu.id';
if ($where) {
$sql .= " AND {$where}";
$params = array_merge($params, $whereparams);
}
if ($sort) {
$sql .= " ORDER BY {$sort}";
}
return $DB->get_records_sql($sql, $params, $limitfrom, $limitnum);
}
/**
* This function returns an array of grades that were included in the import,
* but where the user does not currently have a graded role on the course. These grades
* are still stored in the database, but will not be visible in the gradebook unless
* this user subsequently enrols on the course in a graded roles.
*
* The returned objects have fields user firstname, lastname and useridnumber, and gradeidnumber.
*
* @param integer $importcode import batch identifier
* @param integer $courseid the course we are importing to.
* @return mixed and array of user objects, or false if none.
*/
function get_unenrolled_users_in_import($importcode, $courseid)
{
global $CFG, $DB;
$coursecontext = context_course::instance($courseid);
// We want to query both the current context and parent contexts.
list($relatedctxsql, $relatedctxparams) = $DB->get_in_or_equal($coursecontext->get_parent_context_ids(true), SQL_PARAMS_NAMED, 'relatedctx');
// Users with a gradeable role.
list($gradebookrolessql, $gradebookrolesparams) = $DB->get_in_or_equal(explode(',', $CFG->gradebookroles), SQL_PARAMS_NAMED, 'grbr');
// Enrolled users.
$context = context_course::instance($courseid);
list($enrolledsql, $enrolledparams) = get_enrolled_sql($context);
list($sort, $sortparams) = users_order_by_sql('u');
$sql = "SELECT giv.id, u.firstname, u.lastname, u.idnumber AS useridnumber,\n COALESCE(gi.idnumber, gin.itemname) AS gradeidnumber\n FROM {grade_import_values} giv\n JOIN {user} u\n ON giv.userid = u.id\n LEFT JOIN {grade_items} gi\n ON gi.id = giv.itemid\n LEFT JOIN {grade_import_newitem} gin\n ON gin.id = giv.newgradeitem\n LEFT JOIN ({$enrolledsql}) je\n ON je.id = u.id\n LEFT JOIN {role_assignments} ra\n ON (giv.userid = ra.userid AND ra.roleid {$gradebookrolessql} AND ra.contextid {$relatedctxsql})\n WHERE giv.importcode = :importcode\n AND (ra.id IS NULL OR je.id IS NULL)\n ORDER BY gradeidnumber, {$sort}";
$params = array_merge($gradebookrolesparams, $enrolledparams, $sortparams, $relatedctxparams);
$params['importcode'] = $importcode;
return $DB->get_records_sql($sql, $params);
}
/**
* Load a count of submissions with a specified status.
*
* @param string $status The submission status - should match one of the constants
* @return int number of matching submissions
*/
public function count_submissions_with_status($status)
{
global $DB;
$currentgroup = groups_get_activity_group($this->get_course_module(), true);
list($esql, $params) = get_enrolled_sql($this->get_context(), 'mod/assign:submit', $currentgroup, true);
$params['assignid'] = $this->get_instance()->id;
$params['assignid2'] = $this->get_instance()->id;
$params['submissionstatus'] = $status;
if ($this->get_instance()->teamsubmission) {
$groupsstr = '';
if ($currentgroup != 0) {
// If there is an active group we should only display the current group users groups.
$participants = $this->list_participants($currentgroup, true);
$groups = groups_get_all_groups($this->get_course()->id, array_keys($participants), $this->get_instance()->teamsubmissiongroupingid, 'DISTINCT g.id, g.name');
list($groupssql, $groupsparams) = $DB->get_in_or_equal(array_keys($groups), SQL_PARAMS_NAMED);
$groupsstr = 's.groupid ' . $groupssql . ' AND';
$params = $params + $groupsparams;
}
$sql = 'SELECT COUNT(s.groupid)
FROM {assign_submission} s
WHERE
s.latest = 1 AND
s.assignment = :assignid AND
s.timemodified IS NOT NULL AND
s.userid = :groupuserid AND ' . $groupsstr . '
s.status = :submissionstatus';
$params['groupuserid'] = 0;
} else {
$sql = 'SELECT COUNT(s.userid)
FROM {assign_submission} s
JOIN(' . $esql . ') e ON e.id = s.userid
WHERE
s.latest = 1 AND
s.assignment = :assignid AND
s.timemodified IS NOT NULL AND
s.status = :submissionstatus';
}
return $DB->count_records_sql($sql, $params);
}
/**
* Returns SQL to fetch all enrolled users with the given capability in the current workshop
*
* The returned array consists of string $sql and the $params array. Note that the $sql can be
* empty if a grouping is selected and it has no groups.
*
* The list is automatically restricted according to any availability restrictions
* that apply to user lists (e.g. group, grouping restrictions).
*
* @param string $capability the name of the capability
* @param bool $musthavesubmission ff true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return array of (string)sql, (array)params
*/
protected function get_users_with_capability_sql($capability, $musthavesubmission, $groupid)
{
global $CFG;
/** @var int static counter used to generate unique parameter holders */
static $inc = 0;
$inc++;
// If the caller requests all groups and we are using a selected grouping,
// recursively call this function for each group in the grouping (this is
// needed because get_enrolled_sql only supports a single group).
if (empty($groupid) and $this->cm->groupingid) {
$groupingid = $this->cm->groupingid;
$groupinggroupids = array_keys(groups_get_all_groups($this->cm->course, 0, $this->cm->groupingid, 'g.id'));
$sql = array();
$params = array();
foreach ($groupinggroupids as $groupinggroupid) {
if ($groupinggroupid > 0) {
// just in case in order not to fall into the endless loop
list($gsql, $gparams) = $this->get_users_with_capability_sql($capability, $musthavesubmission, $groupinggroupid);
$sql[] = $gsql;
$params = array_merge($params, $gparams);
}
}
$sql = implode(PHP_EOL . " UNION " . PHP_EOL, $sql);
return array($sql, $params);
}
list($esql, $params) = get_enrolled_sql($this->context, $capability, $groupid, true);
$userfields = user_picture::fields('u');
$sql = "SELECT {$userfields}\n FROM {user} u\n JOIN ({$esql}) je ON (je.id = u.id AND u.deleted = 0) ";
if ($musthavesubmission) {
$sql .= " JOIN {workshop_submissions} ws ON (ws.authorid = u.id AND ws.example = 0 AND ws.workshopid = :workshopid{$inc}) ";
$params['workshopid' . $inc] = $this->id;
}
// If the activity is restricted so that only certain users should appear
// in user lists, integrate this into the same SQL.
$info = new \core_availability\info_module($this->cm);
list($listsql, $listparams) = $info->get_user_list_sql(false);
if ($listsql) {
$sql .= " JOIN ({$listsql}) restricted ON restricted.id = u.id ";
$params = array_merge($params, $listparams);
}
return array($sql, $params);
}
public function find_users($search) {
global $DB;
// Get list of allowed roles.
$context = context_course::instance($this->courseid);
if ($validroleids = groups_get_possible_roles($context)) {
list($roleids, $roleparams) = $DB->get_in_or_equal($validroleids, SQL_PARAMS_NAMED, 'r');
} else {
$roleids = " = -1";
$roleparams = array();
}
// Get the search condition.
list($searchcondition, $searchparams) = $this->search_sql($search, 'u');
// Build the SQL
list($enrolsql, $enrolparams) = get_enrolled_sql($context);
$fields = "SELECT r.id AS roleid, u.id AS userid,
" . $this->required_fields_sql('u') . ",
(SELECT count(igm.groupid)
FROM {groups_members} igm
JOIN {groups} ig ON igm.groupid = ig.id
WHERE igm.userid = u.id AND ig.courseid = :courseid) AS numgroups";
$sql = " FROM {user} u
JOIN ($enrolsql) e ON e.id = u.id
LEFT JOIN {role_assignments} ra ON (ra.userid = u.id AND ra.contextid " . get_related_contexts_string($context) . " AND ra.roleid $roleids)
LEFT JOIN {role} r ON r.id = ra.roleid
LEFT JOIN {groups_members} gm ON (gm.userid = u.id AND gm.groupid = :groupid)
WHERE u.deleted = 0
AND gm.id IS NULL
AND $searchcondition";
list($sort, $sortparams) = users_order_by_sql('u', $search, $this->accesscontext);
$orderby = ' ORDER BY ' . $sort;
$params = array_merge($searchparams, $roleparams, $enrolparams);
$params['courseid'] = $this->courseid;
$params['groupid'] = $this->groupid;
if (!$this->is_validating()) {
$potentialmemberscount = $DB->count_records_sql("SELECT COUNT(DISTINCT u.id) $sql", $params);
if ($potentialmemberscount > group_non_members_selector::MAX_USERS_PER_PAGE) {
return $this->too_many_results($search, $potentialmemberscount);
}
}
$rs = $DB->get_recordset_sql("$fields $sql $orderby", array_merge($params, $sortparams));
$roles = groups_calculate_role_people($rs, $context);
//don't hold onto user IDs if we're doing validation
if (empty($this->validatinguserids) ) {
if($roles) {
foreach($roles as $k=>$v) {
if($v) {
foreach($v->users as $uid=>$userobject) {
$this->potentialmembersids[] = $uid;
}
}
}
}
}
return $this->convert_array_format($roles, $search);
}
$table->define_baseurl($baseurl->out());
if (!isset($hiddenfields['lastaccess'])) {
$table->sortable(true, 'lastaccess', SORT_DESC);
} else {
$table->sortable(true, 'firstname', SORT_ASC);
}
$table->no_sorting('roles');
$table->no_sorting('groups');
$table->no_sorting('groupings');
$table->no_sorting('select');
$table->set_attribute('cellspacing', '0');
$table->set_attribute('id', 'participants');
$table->set_attribute('class', 'generaltable generalbox');
$table->set_control_variables(array(TABLE_VAR_SORT => 'ssort', TABLE_VAR_HIDE => 'shide', TABLE_VAR_SHOW => 'sshow', TABLE_VAR_IFIRST => 'sifirst', TABLE_VAR_ILAST => 'silast', TABLE_VAR_PAGE => 'spage'));
$table->setup();
list($esql, $params) = get_enrolled_sql($context, null, $currentgroup, true);
$joins = array("FROM {user} u");
$wheres = array();
$userfields = array('username', 'email', 'city', 'country', 'lang', 'timezone', 'maildisplay');
$mainuserfields = user_picture::fields('u', $userfields);
$extrasql = get_extra_user_fields_sql($context, 'u', '', $userfields);
if ($isfrontpage) {
$select = "SELECT {$mainuserfields}, u.lastaccess{$extrasql}";
$joins[] = "JOIN ({$esql}) e ON e.id = u.id";
// Everybody on the frontpage usually.
if ($accesssince) {
$wheres[] = get_user_lastaccess_sql($accesssince);
}
} else {
$select = "SELECT {$mainuserfields}, COALESCE(ul.timeaccess, 0) AS lastaccess{$extrasql}";
$joins[] = "JOIN ({$esql}) e ON e.id = u.id";
/**
* Builds the grade item averages.
*/
function calculate_averages()
{
global $USER, $DB;
if ($this->showaverage) {
// This settings are actually grader report settings (not user report)
// however we're using them as having two separate but identical settings the
// user would have to keep in sync would be annoying.
$averagesdisplaytype = $this->get_pref('averagesdisplaytype');
$averagesdecimalpoints = $this->get_pref('averagesdecimalpoints');
$meanselection = $this->get_pref('meanselection');
$shownumberofgrades = $this->get_pref('shownumberofgrades');
$avghtml = '';
$groupsql = $this->groupsql;
$groupwheresql = $this->groupwheresql;
$totalcount = $this->get_numusers(false);
// We want to query both the current context and parent contexts.
list($relatedctxsql, $relatedctxparams) = $DB->get_in_or_equal($this->context->get_parent_context_ids(true), SQL_PARAMS_NAMED, 'relatedctx');
// Limit to users with a gradeable role ie students.
list($gradebookrolessql, $gradebookrolesparams) = $DB->get_in_or_equal(explode(',', $this->gradebookroles), SQL_PARAMS_NAMED, 'grbr0');
// Limit to users with an active enrolment.
list($enrolledsql, $enrolledparams) = get_enrolled_sql($this->context);
$params = array_merge($this->groupwheresql_params, $gradebookrolesparams, $enrolledparams, $relatedctxparams);
$params['courseid'] = $this->courseid;
// find sums of all grade items in course
$sql = "SELECT gg.itemid, SUM(gg.finalgrade) AS sum\n FROM {grade_items} gi\n JOIN {grade_grades} gg ON gg.itemid = gi.id\n JOIN {user} u ON u.id = gg.userid\n JOIN ({$enrolledsql}) je ON je.id = gg.userid\n JOIN (\n SELECT DISTINCT ra.userid\n FROM {role_assignments} ra\n WHERE ra.roleid {$gradebookrolessql}\n AND ra.contextid {$relatedctxsql}\n ) rainner ON rainner.userid = u.id\n {$groupsql}\n WHERE gi.courseid = :courseid\n AND u.deleted = 0\n AND gg.finalgrade IS NOT NULL\n AND gg.hidden = 0\n {$groupwheresql}\n GROUP BY gg.itemid";
$sum_array = array();
$sums = $DB->get_recordset_sql($sql, $params);
foreach ($sums as $itemid => $csum) {
$sum_array[$itemid] = $csum->sum;
}
$sums->close();
$columncount = 0;
// Empty grades must be evaluated as grademin, NOT always 0
// This query returns a count of ungraded grades (NULL finalgrade OR no matching record in grade_grades table)
// No join condition when joining grade_items and user to get a grade item row for every user
// Then left join with grade_grades and look for rows with null final grade (which includes grade items with no grade_grade)
$sql = "SELECT gi.id, COUNT(u.id) AS count\n FROM {grade_items} gi\n JOIN {user} u ON u.deleted = 0\n JOIN ({$enrolledsql}) je ON je.id = u.id\n JOIN (\n SELECT DISTINCT ra.userid\n FROM {role_assignments} ra\n WHERE ra.roleid {$gradebookrolessql}\n AND ra.contextid {$relatedctxsql}\n ) rainner ON rainner.userid = u.id\n LEFT JOIN {grade_grades} gg\n ON (gg.itemid = gi.id AND gg.userid = u.id AND gg.finalgrade IS NOT NULL AND gg.hidden = 0)\n {$groupsql}\n WHERE gi.courseid = :courseid\n AND gg.finalgrade IS NULL\n {$groupwheresql}\n GROUP BY gi.id";
$ungraded_counts = $DB->get_records_sql($sql, $params);
foreach ($this->gtree->items as $itemid => $unused) {
if (!empty($this->gtree->items[$itemid]->avg)) {
continue;
}
$item = $this->gtree->items[$itemid];
if ($item->needsupdate) {
$avghtml .= '<td class="cell c' . $columncount++ . '"><span class="gradingerror">' . get_string('error') . '</span></td>';
continue;
}
if (empty($sum_array[$item->id])) {
$sum_array[$item->id] = 0;
}
if (empty($ungraded_counts[$itemid])) {
$ungraded_count = 0;
} else {
$ungraded_count = $ungraded_counts[$itemid]->count;
}
//do they want the averages to include all grade items
if ($meanselection == GRADE_REPORT_MEAN_GRADED) {
$mean_count = $totalcount - $ungraded_count;
} else {
// Bump up the sum by the number of ungraded items * grademin
$sum_array[$item->id] += $ungraded_count * $item->grademin;
$mean_count = $totalcount;
}
// Determine which display type to use for this average
if (!empty($USER->gradeediting) && $USER->gradeediting[$this->courseid]) {
$displaytype = GRADE_DISPLAY_TYPE_REAL;
} else {
if ($averagesdisplaytype == GRADE_REPORT_PREFERENCE_INHERIT) {
// no ==0 here, please resave the report and user preferences
$displaytype = $item->get_displaytype();
} else {
$displaytype = $averagesdisplaytype;
}
}
// Override grade_item setting if a display preference (not inherit) was set for the averages
if ($averagesdecimalpoints == GRADE_REPORT_PREFERENCE_INHERIT) {
$decimalpoints = $item->get_decimals();
} else {
$decimalpoints = $averagesdecimalpoints;
}
if (empty($sum_array[$item->id]) || $mean_count == 0) {
$this->gtree->items[$itemid]->avg = '-';
} else {
$sum = $sum_array[$item->id];
$avgradeval = $sum / $mean_count;
$gradehtml = grade_format_gradevalue($avgradeval, $item, true, $displaytype, $decimalpoints);
$numberofgrades = '';
if ($shownumberofgrades) {
$numberofgrades = " ({$mean_count})";
}
$this->gtree->items[$itemid]->avg = $gradehtml . $numberofgrades;
}
}
}
}
/**
* Load a count of submissions with a specified status.
*
* @param string $status The submission status - should match one of the constants
* @return int number of matching submissions
*/
public function count_submissions_with_status($status)
{
global $DB;
$currentgroup = groups_get_activity_group($this->get_course_module(), true);
list($esql, $params) = get_enrolled_sql($this->get_context(), 'mod/assign:submit', $currentgroup, true);
$params['assignid'] = $this->get_instance()->id;
$params['assignid2'] = $this->get_instance()->id;
$params['submissionstatus'] = $status;
if ($this->get_instance()->teamsubmission) {
$maxattemptsql = 'SELECT mxs.groupid, MAX(mxs.attemptnumber) AS maxattempt
FROM {assign_submission} mxs
WHERE mxs.assignment = :assignid2 GROUP BY mxs.groupid';
$sql = 'SELECT COUNT(s.groupid)
FROM {assign_submission} s
JOIN(' . $maxattemptsql . ') smx ON s.groupid = smx.groupid
WHERE
s.attemptnumber = smx.maxattempt AND
s.assignment = :assignid AND
s.timemodified IS NOT NULL AND
s.userid = :groupuserid AND
s.status = :submissionstatus';
$params['groupuserid'] = 0;
} else {
$maxattemptsql = 'SELECT mxs.userid, MAX(mxs.attemptnumber) AS maxattempt
FROM {assign_submission} mxs
WHERE mxs.assignment = :assignid2 GROUP BY mxs.userid';
$sql = 'SELECT COUNT(s.userid)
FROM {assign_submission} s
JOIN(' . $esql . ') e ON e.id = s.userid
JOIN(' . $maxattemptsql . ') smx ON s.userid = smx.userid
WHERE
s.attemptnumber = smx.maxattempt AND
s.assignment = :assignid AND
s.timemodified IS NOT NULL AND
s.status = :submissionstatus';
}
return $DB->count_records_sql($sql, $params);
}
/**
* Given context and array of users, returns array of user ids whose enrolment status is suspended,
* or enrolment has expired or not started.
*
* @param context $context context in which user enrolment is checked.
* @return array list of suspended user id's.
*/
function get_suspended_userids($context){
global $DB;
// Get all enrolled users.
list($sql, $params) = get_enrolled_sql($context);
$users = $DB->get_records_sql($sql, $params);
// Get active enrolled users.
list($sql, $params) = get_enrolled_sql($context, null, null, true);
$activeusers = $DB->get_records_sql($sql, $params);
$susers = array();
if (sizeof($activeusers) != sizeof($users)) {
foreach ($users as $userid => $user) {
if (!array_key_exists($userid, $activeusers)) {
$susers[$userid] = $userid;
}
}
}
return $susers;
}
/**
* Display all the submissions ready for grading
*
* @global object
* @global object
* @global object
* @global object
* @param string $message
* @return bool|void
*/
function display_submissions($message='') {
global $CFG, $DB, $USER, $DB, $OUTPUT, $PAGE;
require_once($CFG->libdir.'/gradelib.php');
/* first we check to see if the form has just been submitted
* to request user_preference updates
*/
$filters = array(self::FILTER_ALL => get_string('all'),
self::FILTER_SUBMITTED => get_string('submitted', 'assignment'),
self::FILTER_REQUIRE_GRADING => get_string('requiregrading', 'assignment'));
$updatepref = optional_param('updatepref', 0, PARAM_INT);
if (isset($_POST['updatepref'])){
$perpage = optional_param('perpage', 10, PARAM_INT);
$perpage = ($perpage <= 0) ? 10 : $perpage ;
$filter = optional_param('filter', 0, PARAM_INT);
set_user_preference('assignment_perpage', $perpage);
set_user_preference('assignment_quickgrade', optional_param('quickgrade', 0, PARAM_BOOL));
set_user_preference('assignment_filter', $filter);
}
/* next we get perpage and quickgrade (allow quick grade) params
* from database
*/
$perpage = get_user_preferences('assignment_perpage', 10);
$quickgrade = get_user_preferences('assignment_quickgrade', 0);
$filter = get_user_preferences('assignment_filter', 0);
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id);
if (!empty($CFG->enableoutcomes) and !empty($grading_info->outcomes)) {
$uses_outcomes = true;
} else {
$uses_outcomes = false;
}
$page = optional_param('page', 0, PARAM_INT);
$strsaveallfeedback = get_string('saveallfeedback', 'assignment');
/// Some shortcuts to make the code read better
$course = $this->course;
$assignment = $this->assignment;
$cm = $this->cm;
$tabindex = 1; //tabindex for quick grading tabbing; Not working for dropdowns yet
add_to_log($course->id, 'assignment', 'view submission', 'submissions.php?id='.$this->cm->id, $this->assignment->id, $this->cm->id);
$PAGE->set_title(format_string($this->assignment->name,true));
$PAGE->set_heading($this->course->fullname);
echo $OUTPUT->header();
echo '<div class="usersubmissions">';
//hook to allow plagiarism plugins to update status/print links.
plagiarism_update_status($this->course, $this->cm);
/// Print quickgrade form around the table
if ($quickgrade) {
$formattrs = array();
$formattrs['action'] = new moodle_url('/mod/assignment/submissions.php');
$formattrs['id'] = 'fastg';
$formattrs['method'] = 'post';
echo html_writer::start_tag('form', $formattrs);
echo html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'id', 'value'=> $this->cm->id));
echo html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'mode', 'value'=> 'fastgrade'));
echo html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'page', 'value'=> $page));
echo html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'sesskey', 'value'=> sesskey()));
}
$course_context = get_context_instance(CONTEXT_COURSE, $course->id);
if (has_capability('gradereport/grader:view', $course_context) && has_capability('moodle/grade:viewall', $course_context)) {
echo '<div class="allcoursegrades"><a href="' . $CFG->wwwroot . '/grade/report/grader/index.php?id=' . $course->id . '">'
. get_string('seeallcoursegrades', 'grades') . '</a></div>';
}
if (!empty($message)) {
echo $message; // display messages here if any
}
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
/// Check to see if groups are being used in this assignment
/// find out current groups mode
$groupmode = groups_get_activity_groupmode($cm);
$currentgroup = groups_get_activity_group($cm, true);
groups_print_activity_menu($cm, $CFG->wwwroot . '/mod/assignment/submissions.php?id=' . $this->cm->id);
/// Get all ppl that are allowed to submit assignments
list($esql, $params) = get_enrolled_sql($context, 'mod/assignment:view', $currentgroup);
if ($filter == self::FILTER_ALL) {
$sql = "SELECT u.id FROM {user} u ".
"LEFT JOIN ($esql) eu ON eu.id=u.id ".
"WHERE u.deleted = 0 AND eu.id=u.id ";
} else {
$wherefilter = '';
if($filter == self::FILTER_SUBMITTED) {
$wherefilter = ' AND s.timemodified > 0';
} else if($filter == self::FILTER_REQUIRE_GRADING) {
$wherefilter = ' AND s.timemarked < s.timemodified ';
}
$sql = "SELECT u.id FROM {user} u ".
"LEFT JOIN ($esql) eu ON eu.id=u.id ".
"LEFT JOIN {assignment_submissions} s ON (u.id = s.userid) " .
"WHERE u.deleted = 0 AND eu.id=u.id ".
'AND s.assignment = '. $this->assignment->id .
$wherefilter;
}
$users = $DB->get_records_sql($sql, $params);
if (!empty($users)) {
$users = array_keys($users);
}
// if groupmembersonly used, remove users who are not in any group
if ($users and !empty($CFG->enablegroupmembersonly) and $cm->groupmembersonly) {
if ($groupingusers = groups_get_grouping_members($cm->groupingid, 'u.id', 'u.id')) {
$users = array_intersect($users, array_keys($groupingusers));
}
}
$tablecolumns = array('picture', 'fullname', 'grade', 'submissioncomment', 'timemodified', 'timemarked', 'status', 'finalgrade');
if ($uses_outcomes) {
$tablecolumns[] = 'outcome'; // no sorting based on outcomes column
}
$tableheaders = array('',
get_string('fullname'),
get_string('grade'),
get_string('comment', 'assignment'),
get_string('lastmodified').' ('.get_string('submission', 'assignment').')',
get_string('lastmodified').' ('.get_string('grade').')',
get_string('status'),
get_string('finalgrade', 'grades'));
if ($uses_outcomes) {
$tableheaders[] = get_string('outcome', 'grades');
}
require_once($CFG->libdir.'/tablelib.php');
$table = new flexible_table('mod-assignment-submissions');
$table->define_columns($tablecolumns);
$table->define_headers($tableheaders);
$table->define_baseurl($CFG->wwwroot.'/mod/assignment/submissions.php?id='.$this->cm->id.'&currentgroup='.$currentgroup);
$table->sortable(true, 'lastname');//sorted by lastname by default
$table->collapsible(true);
$table->initialbars(true);
$table->column_suppress('picture');
$table->column_suppress('fullname');
$table->column_class('picture', 'picture');
$table->column_class('fullname', 'fullname');
$table->column_class('grade', 'grade');
$table->column_class('submissioncomment', 'comment');
$table->column_class('timemodified', 'timemodified');
$table->column_class('timemarked', 'timemarked');
$table->column_class('status', 'status');
$table->column_class('finalgrade', 'finalgrade');
if ($uses_outcomes) {
$table->column_class('outcome', 'outcome');
}
$table->set_attribute('cellspacing', '0');
$table->set_attribute('id', 'attempts');
$table->set_attribute('class', 'submissions');
$table->set_attribute('width', '100%');
//$table->set_attribute('align', 'center');
$table->no_sorting('finalgrade');
$table->no_sorting('outcome');
// Start working -- this is necessary as soon as the niceties are over
$table->setup();
if (empty($users)) {
echo $OUTPUT->heading(get_string('nosubmitusers','assignment'));
echo '</div>';
return true;
}
if ($this->assignment->assignmenttype=='upload' || $this->assignment->assignmenttype=='online' || $this->assignment->assignmenttype=='uploadsingle') { //TODO: this is an ugly hack, where is the plugin spirit? (skodak)
echo '<div style="text-align:right"><a href="submissions.php?id='.$this->cm->id.'&download=zip">'.get_string('downloadall', 'assignment').'</a></div>';
}
/// Construct the SQL
list($where, $params) = $table->get_sql_where();
if ($where) {
$where .= ' AND ';
}
if ($filter == self::FILTER_SUBMITTED) {
$where .= 's.timemodified > 0 AND ';
} else if($filter == self::FILTER_REQUIRE_GRADING) {
$where .= 's.timemarked < s.timemodified AND ';
}
if ($sort = $table->get_sql_sort()) {
$sort = ' ORDER BY '.$sort;
}
$ufields = user_picture::fields('u');
$select = "SELECT $ufields,
s.id AS submissionid, s.grade, s.submissioncomment,
s.timemodified, s.timemarked,
COALESCE(SIGN(SIGN(s.timemarked) + SIGN(s.timemarked - s.timemodified)), 0) AS status ";
$sql = 'FROM {user} u '.
'LEFT JOIN {assignment_submissions} s ON u.id = s.userid
AND s.assignment = '.$this->assignment->id.' '.
'WHERE '.$where.'u.id IN ('.implode(',',$users).') ';
$ausers = $DB->get_records_sql($select.$sql.$sort, $params, $table->get_page_start(), $table->get_page_size());
$table->pagesize($perpage, count($users));
///offset used to calculate index of student in that particular query, needed for the pop up to know who's next
$offset = $page * $perpage;
$strupdate = get_string('update');
$strgrade = get_string('grade');
$grademenu = make_grades_menu($this->assignment->grade);
if ($ausers !== false) {
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, array_keys($ausers));
$endposition = $offset + $perpage;
$currentposition = 0;
foreach ($ausers as $auser) {
if ($currentposition == $offset && $offset < $endposition) {
$final_grade = $grading_info->items[0]->grades[$auser->id];
$grademax = $grading_info->items[0]->grademax;
$final_grade->formatted_grade = round($final_grade->grade,2) .' / ' . round($grademax,2);
$locked_overridden = 'locked';
if ($final_grade->overridden) {
$locked_overridden = 'overridden';
}
/// Calculate user status
$auser->status = ($auser->timemarked > 0) && ($auser->timemarked >= $auser->timemodified);
$picture = $OUTPUT->user_picture($auser);
if (empty($auser->submissionid)) {
$auser->grade = -1; //no submission yet
}
if (!empty($auser->submissionid)) {
///Prints student answer and student modified date
///attach file or print link to student answer, depending on the type of the assignment.
///Refer to print_student_answer in inherited classes.
if ($auser->timemodified > 0) {
$studentmodified = '<div id="ts'.$auser->id.'">'.$this->print_student_answer($auser->id)
. userdate($auser->timemodified).'</div>';
} else {
$studentmodified = '<div id="ts'.$auser->id.'"> </div>';
}
///Print grade, dropdown or text
if ($auser->timemarked > 0) {
$teachermodified = '<div id="tt'.$auser->id.'">'.userdate($auser->timemarked).'</div>';
if ($final_grade->locked or $final_grade->overridden) {
$grade = '<div id="g'.$auser->id.'" class="'. $locked_overridden .'">'.$final_grade->formatted_grade.'</div>';
} else if ($quickgrade) {
$attributes = array();
$attributes['tabindex'] = $tabindex++;
$menu = html_writer::select(make_grades_menu($this->assignment->grade), 'menu['.$auser->id.']', $auser->grade, array(-1=>get_string('nograde')), $attributes);
$grade = '<div id="g'.$auser->id.'">'. $menu .'</div>';
} else {
$grade = '<div id="g'.$auser->id.'">'.$this->display_grade($auser->grade).'</div>';
}
} else {
$teachermodified = '<div id="tt'.$auser->id.'"> </div>';
if ($final_grade->locked or $final_grade->overridden) {
$grade = '<div id="g'.$auser->id.'" class="'. $locked_overridden .'">'.$final_grade->formatted_grade.'</div>';
} else if ($quickgrade) {
$attributes = array();
$attributes['tabindex'] = $tabindex++;
$menu = html_writer::select(make_grades_menu($this->assignment->grade), 'menu['.$auser->id.']', $auser->grade, array(-1=>get_string('nograde')), $attributes);
$grade = '<div id="g'.$auser->id.'">'.$menu.'</div>';
} else {
$grade = '<div id="g'.$auser->id.'">'.$this->display_grade($auser->grade).'</div>';
}
}
///Print Comment
if ($final_grade->locked or $final_grade->overridden) {
$comment = '<div id="com'.$auser->id.'">'.shorten_text(strip_tags($final_grade->str_feedback),15).'</div>';
} else if ($quickgrade) {
$comment = '<div id="com'.$auser->id.'">'
. '<textarea tabindex="'.$tabindex++.'" name="submissioncomment['.$auser->id.']" id="submissioncomment'
. $auser->id.'" rows="2" cols="20">'.($auser->submissioncomment).'</textarea></div>';
} else {
$comment = '<div id="com'.$auser->id.'">'.shorten_text(strip_tags($auser->submissioncomment),15).'</div>';
}
} else {
$studentmodified = '<div id="ts'.$auser->id.'"> </div>';
$teachermodified = '<div id="tt'.$auser->id.'"> </div>';
$status = '<div id="st'.$auser->id.'"> </div>';
if ($final_grade->locked or $final_grade->overridden) {
$grade = '<div id="g'.$auser->id.'">'.$final_grade->formatted_grade . '</div>';
} else if ($quickgrade) { // allow editing
$attributes = array();
$attributes['tabindex'] = $tabindex++;
$menu = html_writer::select(make_grades_menu($this->assignment->grade), 'menu['.$auser->id.']', $auser->grade, array(-1=>get_string('nograde')), $attributes);
$grade = '<div id="g'.$auser->id.'">'.$menu.'</div>';
} else {
$grade = '<div id="g'.$auser->id.'">-</div>';
}
if ($final_grade->locked or $final_grade->overridden) {
$comment = '<div id="com'.$auser->id.'">'.$final_grade->str_feedback.'</div>';
} else if ($quickgrade) {
$comment = '<div id="com'.$auser->id.'">'
. '<textarea tabindex="'.$tabindex++.'" name="submissioncomment['.$auser->id.']" id="submissioncomment'
. $auser->id.'" rows="2" cols="20">'.($auser->submissioncomment).'</textarea></div>';
} else {
$comment = '<div id="com'.$auser->id.'"> </div>';
}
}
if (empty($auser->status)) { /// Confirm we have exclusively 0 or 1
$auser->status = 0;
} else {
$auser->status = 1;
}
$buttontext = ($auser->status == 1) ? $strupdate : $strgrade;
///No more buttons, we use popups ;-).
$popup_url = '/mod/assignment/submissions.php?id='.$this->cm->id
. '&userid='.$auser->id.'&mode=single'.'&filter='.$filter.'&offset='.$offset++;
$button = $OUTPUT->action_link($popup_url, $buttontext);
$status = '<div id="up'.$auser->id.'" class="s'.$auser->status.'">'.$button.'</div>';
$finalgrade = '<span id="finalgrade_'.$auser->id.'">'.$final_grade->str_grade.'</span>';
$outcomes = '';
if ($uses_outcomes) {
foreach($grading_info->outcomes as $n=>$outcome) {
$outcomes .= '<div class="outcome"><label>'.$outcome->name.'</label>';
$options = make_grades_menu(-$outcome->scaleid);
if ($outcome->grades[$auser->id]->locked or !$quickgrade) {
$options[0] = get_string('nooutcome', 'grades');
$outcomes .= ': <span id="outcome_'.$n.'_'.$auser->id.'">'.$options[$outcome->grades[$auser->id]->grade].'</span>';
} else {
$attributes = array();
$attributes['tabindex'] = $tabindex++;
$attributes['id'] = 'outcome_'.$n.'_'.$auser->id;
$outcomes .= ' '.html_writer::select($options, 'outcome_'.$n.'['.$auser->id.']', $outcome->grades[$auser->id]->grade, array(0=>get_string('nooutcome', 'grades')), $attributes);
}
$outcomes .= '</div>';
}
}
$userlink = '<a href="' . $CFG->wwwroot . '/user/view.php?id=' . $auser->id . '&course=' . $course->id . '">' . fullname($auser, has_capability('moodle/site:viewfullnames', $this->context)) . '</a>';
$row = array($picture, $userlink, $grade, $comment, $studentmodified, $teachermodified, $status, $finalgrade);
if ($uses_outcomes) {
$row[] = $outcomes;
}
$table->add_data($row);
}
$currentposition++;
}
}
$table->print_html(); /// Print the whole table
/// Print quickgrade form around the table
if ($quickgrade && $table->started_output){
$mailinfopref = false;
if (get_user_preferences('assignment_mailinfo', 1)) {
$mailinfopref = true;
}
$emailnotification = html_writer::checkbox('mailinfo', 1, $mailinfopref, get_string('enableemailnotification','assignment'));
$emailnotification .= $OUTPUT->help_icon('enableemailnotification', 'assignment');
echo html_writer::tag('div', $emailnotification, array('class'=>'emailnotification'));
$savefeedback = html_writer::empty_tag('input', array('type'=>'submit', 'name'=>'fastg', 'value'=>get_string('saveallfeedback', 'assignment')));
echo html_writer::tag('div', $savefeedback, array('class'=>'fastgbutton'));
echo html_writer::end_tag('form');
} else if ($quickgrade) {
echo html_writer::end_tag('form');
}
echo '</div>';
/// End of fast grading form
/// Mini form for setting user preference
$formaction = new moodle_url('/mod/assignment/submissions.php', array('id'=>$this->cm->id));
$mform = new MoodleQuickForm('optionspref', 'post', $formaction, '', array('class'=>'optionspref'));
$mform->addElement('hidden', 'updatepref');
$mform->setDefault('updatepref', 1);
$mform->addElement('header', 'qgprefs', get_string('optionalsettings', 'assignment'));
$mform->addElement('select', 'filter', get_string('show'), $filters);
$mform->setDefault('filter', $filter);
$mform->addElement('text', 'perpage', get_string('pagesize', 'assignment'), array('size'=>1));
$mform->setDefault('perpage', $perpage);
$mform->addElement('checkbox', 'quickgrade', get_string('quickgrade','assignment'));
$mform->setDefault('quickgrade', $quickgrade);
$mform->addHelpButton('quickgrade', 'quickgrade', 'assignment');
$mform->addElement('submit', 'savepreferences', get_string('savepreferences'));
$mform->display();
echo $OUTPUT->footer();
}
/**
* Enrol all not enrolled cohort members into course via enrol instance.
*
* @param stdClass $instance
* @param int $cohortid
* @param int $roleid optional role id
* @param int $timestart 0 means unknown
* @param int $timeend 0 means forever
* @param int $status default to ENROL_USER_ACTIVE for new enrolments, no change by default in updates
* @param bool $recovergrades restore grade history
*/
public function enrol_cohort(stdClass $instance, $cohortid, $roleid = null, $timestart = 0, $timeend = 0, $status = null, $recovergrades = null)
{
global $DB;
$context = context_course::instance($instance->courseid);
list($esql, $params) = get_enrolled_sql($context);
$sql = "SELECT cm.userid FROM {cohort_members} cm LEFT JOIN ({$esql}) u ON u.id = cm.userid " . "WHERE cm.cohortid = :cohortid AND u.id IS NULL";
$params['cohortid'] = $cohortid;
$members = $DB->get_fieldset_sql($sql, $params);
foreach ($members as $userid) {
$this->enrol_user($instance, $userid, $roleid, $timestart, $timeend, $status, $recovergrades);
}
}
public function find_users($search)
{
global $DB;
// Get list of allowed roles.
$context = get_context_instance(CONTEXT_COURSE, $this->courseid);
if ($validroleids = groups_get_possible_roles($context)) {
list($roleids, $roleparams) = $DB->get_in_or_equal($validroleids, SQL_PARAMS_NAMED, 'r');
} else {
$roleids = " = -1";
$roleparams = array();
}
// Get the search condition.
list($searchcondition, $searchparams) = $this->search_sql($search, 'u');
// Build the SQL
list($enrolsql, $enrolparams) = get_enrolled_sql($context);
$fields = "SELECT r.id AS roleid, r.shortname AS roleshortname, r.name AS rolename, u.id AS userid,\n " . $this->required_fields_sql('u') . ",\n (SELECT count(igm.groupid)\n FROM {groups_members} igm\n JOIN {groups} ig ON igm.groupid = ig.id\n WHERE igm.userid = u.id AND ig.courseid = :courseid) AS numgroups";
$sql = " FROM {user} u\n JOIN ({$enrolsql}) e ON e.id = u.id\n LEFT JOIN {role_assignments} ra ON (ra.userid = u.id AND ra.contextid " . get_related_contexts_string($context) . " AND ra.roleid {$roleids})\n LEFT JOIN {role} r ON r.id = ra.roleid\n WHERE u.deleted = 0\n AND u.id NOT IN (SELECT userid\n FROM {groups_members}\n WHERE groupid = :groupid)\n AND {$searchcondition}";
$orderby = "ORDER BY u.lastname, u.firstname";
$params = array_merge($searchparams, $roleparams, $enrolparams);
$params['courseid'] = $this->courseid;
$params['groupid'] = $this->groupid;
if (!$this->is_validating()) {
$potentialmemberscount = $DB->count_records_sql("SELECT COUNT(DISTINCT u.id) {$sql}", $params);
if ($potentialmemberscount > group_non_members_selector::MAX_USERS_PER_PAGE) {
return $this->too_many_results($search, $potentialmemberscount);
}
}
$rs = $DB->get_recordset_sql("{$fields} {$sql} {$orderby}", $params);
$roles = groups_calculate_role_people($rs, $context);
//don't hold onto user IDs if we're doing validation
if (empty($this->validatinguserids)) {
if ($roles) {
foreach ($roles as $k => $v) {
if ($v) {
foreach ($v->users as $uid => $userobject) {
$this->potentialmembersids[] = $uid;
}
}
}
}
}
return $this->convert_array_format($roles, $search);
}
public function find_users($search)
{
global $DB;
// Get list of allowed roles.
$context = context_course::instance($this->courseid);
if ($validroleids = groups_get_possible_roles($context)) {
list($roleids, $roleparams) = $DB->get_in_or_equal($validroleids, SQL_PARAMS_NAMED, 'r');
} else {
$roleids = " = -1";
$roleparams = array();
}
// We want to query both the current context and parent contexts.
list($relatedctxsql, $relatedctxparams) = $DB->get_in_or_equal($context->get_parent_context_ids(true), SQL_PARAMS_NAMED, 'relatedctx');
// Get the search condition.
list($searchcondition, $searchparams) = $this->search_sql($search, 'u');
// Build the SQL
list($enrolsql, $enrolparams) = get_enrolled_sql($context);
$fields = "SELECT r.id AS roleid, u.id AS userid,\n " . $this->required_fields_sql('u') . ",\n (SELECT count(igm.groupid)\n FROM {groups_members} igm\n JOIN {groups} ig ON igm.groupid = ig.id\n WHERE igm.userid = u.id AND ig.courseid = :courseid) AS numgroups";
$sql = " FROM {user} u\n JOIN ({$enrolsql}) e ON e.id = u.id\n LEFT JOIN {role_assignments} ra ON (ra.userid = u.id AND ra.contextid {$relatedctxsql} AND ra.roleid {$roleids})\n LEFT JOIN {role} r ON r.id = ra.roleid\n LEFT JOIN {groups_members} gm ON (gm.userid = u.id AND gm.groupid = :groupid)\n WHERE u.deleted = 0\n AND gm.id IS NULL\n AND {$searchcondition}";
list($sort, $sortparams) = users_order_by_sql('u', $search, $this->accesscontext);
$orderby = ' ORDER BY ' . $sort;
$params = array_merge($searchparams, $roleparams, $enrolparams, $relatedctxparams);
$params['courseid'] = $this->courseid;
$params['groupid'] = $this->groupid;
if (!$this->is_validating()) {
$potentialmemberscount = $DB->count_records_sql("SELECT COUNT(DISTINCT u.id) {$sql}", $params);
if ($potentialmemberscount > $this->maxusersperpage) {
return $this->too_many_results($search, $potentialmemberscount);
}
}
$rs = $DB->get_recordset_sql("{$fields} {$sql} {$orderby}", array_merge($params, $sortparams));
$roles = groups_calculate_role_people($rs, $context);
//don't hold onto user IDs if we're doing validation
if (empty($this->validatinguserids)) {
if ($roles) {
foreach ($roles as $k => $v) {
if ($v) {
foreach ($v->users as $uid => $userobject) {
$this->potentialmembersids[] = $uid;
}
}
}
}
}
return $this->convert_array_format($roles, $search);
}
/**
* Initialise the iterator
*
* @return boolean success
*/
public function init()
{
global $CFG, $DB;
$this->close();
export_verify_grades($this->course->id);
$course_item = grade_item::fetch_course_item($this->course->id);
if ($course_item->needsupdate) {
// Can not calculate all final grades - sorry.
return false;
}
$coursecontext = context_course::instance($this->course->id);
list($relatedctxsql, $relatedctxparams) = $DB->get_in_or_equal($coursecontext->get_parent_context_ids(true), SQL_PARAMS_NAMED, 'relatedctx');
list($gradebookroles_sql, $params) = $DB->get_in_or_equal(explode(',', $CFG->gradebookroles), SQL_PARAMS_NAMED, 'grbr');
list($enrolledsql, $enrolledparams) = get_enrolled_sql($coursecontext, '', 0, $this->onlyactive);
$params = array_merge($params, $enrolledparams, $relatedctxparams);
if ($this->groupid) {
$groupsql = "INNER JOIN {groups_members} gm ON gm.userid = u.id";
$groupwheresql = "AND gm.groupid = :groupid";
// $params contents: gradebookroles
$params['groupid'] = $this->groupid;
} else {
$groupsql = "";
$groupwheresql = "";
}
if (empty($this->sortfield1)) {
// We must do some sorting even if not specified.
$ofields = ", u.id AS usrt";
$order = "usrt ASC";
} else {
$ofields = ", u.{$this->sortfield1} AS usrt1";
$order = "usrt1 {$this->sortorder1}";
if (!empty($this->sortfield2)) {
$ofields .= ", u.{$this->sortfield2} AS usrt2";
$order .= ", usrt2 {$this->sortorder2}";
}
if ($this->sortfield1 != 'id' and $this->sortfield2 != 'id') {
// User order MUST be the same in both queries,
// must include the only unique user->id if not already present.
$ofields .= ", u.id AS usrt";
$order .= ", usrt ASC";
}
}
$userfields = 'u.*';
$customfieldssql = '';
if ($this->allowusercustomfields && !empty($CFG->grade_export_customprofilefields)) {
$customfieldscount = 0;
$customfieldsarray = grade_helper::get_user_profile_fields($this->course->id, $this->allowusercustomfields);
foreach ($customfieldsarray as $field) {
if (!empty($field->customid)) {
$customfieldssql .= "\n LEFT JOIN (SELECT * FROM {user_info_data}\n WHERE fieldid = :cf{$customfieldscount}) cf{$customfieldscount}\n ON u.id = cf{$customfieldscount}.userid";
$userfields .= ", cf{$customfieldscount}.data AS customfield_{$field->shortname}";
$params['cf' . $customfieldscount] = $field->customid;
$customfieldscount++;
}
}
}
$users_sql = "SELECT {$userfields} {$ofields}\n FROM {user} u\n JOIN ({$enrolledsql}) je ON je.id = u.id\n {$groupsql} {$customfieldssql}\n JOIN (\n SELECT DISTINCT ra.userid\n FROM {role_assignments} ra\n WHERE ra.roleid {$gradebookroles_sql}\n AND ra.contextid {$relatedctxsql}\n ) rainner ON rainner.userid = u.id\n WHERE u.deleted = 0\n {$groupwheresql}\n ORDER BY {$order}";
$this->users_rs = $DB->get_recordset_sql($users_sql, $params);
if (!$this->onlyactive) {
$context = context_course::instance($this->course->id);
$this->suspendedusers = get_suspended_userids($context);
} else {
$this->suspendedusers = array();
}
if (!empty($this->grade_items)) {
$itemids = array_keys($this->grade_items);
list($itemidsql, $grades_params) = $DB->get_in_or_equal($itemids, SQL_PARAMS_NAMED, 'items');
$params = array_merge($params, $grades_params);
$grades_sql = "SELECT g.* {$ofields}\n FROM {grade_grades} g\n JOIN {user} u ON g.userid = u.id\n JOIN ({$enrolledsql}) je ON je.id = u.id\n {$groupsql}\n JOIN (\n SELECT DISTINCT ra.userid\n FROM {role_assignments} ra\n WHERE ra.roleid {$gradebookroles_sql}\n AND ra.contextid {$relatedctxsql}\n ) rainner ON rainner.userid = u.id\n WHERE u.deleted = 0\n AND g.itemid {$itemidsql}\n {$groupwheresql}\n ORDER BY {$order}, g.itemid ASC";
$this->grades_rs = $DB->get_recordset_sql($grades_sql, $params);
} else {
$this->grades_rs = false;
}
return true;
}
/**
* Returns a list of teachers that should be grading given submission
*
* @param object $user
* @return array
*/
function get_graders($user)
{
global $DB;
//potential graders
list($enrolledsql, $params) = get_enrolled_sql($this->context, 'mod/assignment:grade', 0, true);
$sql = "SELECT u.*\n FROM {user} u\n JOIN ({$enrolledsql}) je ON je.id = u.id";
$potgraders = $DB->get_records_sql($sql, $params);
$graders = array();
if (groups_get_activity_groupmode($this->cm) == SEPARATEGROUPS) {
// Separate groups are being used
if ($groups = groups_get_all_groups($this->course->id, $user->id)) {
// Try to find all groups
foreach ($groups as $group) {
foreach ($potgraders as $t) {
if ($t->id == $user->id) {
continue;
// do not send self
}
if (groups_is_member($group->id, $t->id)) {
$graders[$t->id] = $t;
}
}
}
} else {
// user not in group, try to find graders without group
foreach ($potgraders as $t) {
if ($t->id == $user->id) {
continue;
// do not send self
}
if (!groups_get_all_groups($this->course->id, $t->id)) {
//ugly hack
$graders[$t->id] = $t;
}
}
}
} else {
foreach ($potgraders as $t) {
if ($t->id == $user->id) {
continue;
// do not send self
}
$graders[$t->id] = $t;
}
}
return $graders;
}
/**
* Counts list of users enrolled into course (as per above function)
*
* @param context $context
* @param string $withcapability
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return array of user records
*/
function count_enrolled_users(context $context, $withcapability = '', $groupid = 0)
{
global $DB;
list($esql, $params) = get_enrolled_sql($context, $withcapability, $groupid);
$sql = "SELECT count(u.id)\n FROM {user} u\n JOIN ({$esql}) je ON je.id = u.id\n WHERE u.deleted = 0";
return $DB->count_records_sql($sql, $params);
}
/**
* Obtains a list of everybody who has read this discussion (only works
* if the discussion is within the 'read' period). The list is in date order
* (most recent first). Each returned item has ->time (time last read) and
* ->user (Moodle user object) fields.
* @param int $groupid Group ID or mod_forumng::ALL_GROUPS
* @return array Array of information about readers
* @throws coding_exception If you try to call it in a shared forum (not supported)
*/
public function get_readers($groupid = mod_forumng::ALL_GROUPS)
{
global $DB;
if ($this->get_forum()->is_shared()) {
throw new coding_exception('get_readers not supported in shared forums');
}
list($sql, $params) = get_enrolled_sql($this->get_forum()->get_context(), '', $groupid ? $groupid : 0, true);
$now = round(time(), -2);
$params['discussionid'] = $this->discussionfields->id;
$result = $DB->get_records_sql($sql = "\nSELECT\n fr.id,\n " . mod_forumng_utils::select_username_fields('u', false) . ",\n fr.time,\n u.idnumber AS u_idnumber\nFROM\n {forumng_read} fr\n INNER JOIN {user} u ON u.id = fr.userid\nWHERE\n fr.userid IN ({$sql})\n AND fr.discussionid = :discussionid\nORDER BY\n fr.time DESC", $params);
foreach ($result as $item) {
$item->user = mod_forumng_utils::extract_subobject($item, 'u_');
}
return $result;
}
