mirrored from git://git.moodle.org/moodle.git
/
externallib.php
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/
externallib.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* External assign API
*
* @package mod_assign
* @since Moodle 2.4
* @copyright 2012 Paul Charsley
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
require_once("$CFG->libdir/externallib.php");
require_once("$CFG->dirroot/user/externallib.php");
require_once("$CFG->dirroot/mod/assign/locallib.php");
/**
* Assign functions
* @copyright 2012 Paul Charsley
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class mod_assign_external extends external_api {
/**
* Generate a warning in a standard structure for a known failure.
*
* @param int $assignmentid - The assignment
* @param string $warningcode - The key for the warning message
* @param string $detail - A description of the error
* @return array - Warning structure containing item, itemid, warningcode, message
*/
private static function generate_warning($assignmentid, $warningcode, $detail) {
$warningmessages = array(
'couldnotlock'=>'Could not lock the submission for this user.',
'couldnotunlock'=>'Could not unlock the submission for this user.',
'couldnotsubmitforgrading'=>'Could not submit assignment for grading.',
'couldnotrevealidentities'=>'Could not reveal identities.',
'couldnotgrantextensions'=>'Could not grant submission date extensions.',
'couldnotrevert'=>'Could not revert submission to draft.',
'invalidparameters'=>'Invalid parameters.',
'couldnotsavesubmission'=>'Could not save submission.',
'couldnotsavegrade'=>'Could not save grade.'
);
$message = $warningmessages[$warningcode];
if (empty($message)) {
$message = 'Unknown warning type.';
}
return array('item'=>$detail,
'itemid'=>$assignmentid,
'warningcode'=>$warningcode,
'message'=>$message);
}
/**
* Describes the parameters for get_grades
* @return external_external_function_parameters
* @since Moodle 2.4
*/
public static function get_grades_parameters() {
return new external_function_parameters(
array(
'assignmentids' => new external_multiple_structure(
new external_value(PARAM_INT, 'assignment id'),
'1 or more assignment ids',
VALUE_REQUIRED),
'since' => new external_value(PARAM_INT,
'timestamp, only return records where timemodified >= since',
VALUE_DEFAULT, 0)
)
);
}
/**
* Returns grade information from assign_grades for the requested assignment ids
* @param int[] $assignmentids
* @param int $since only return records with timemodified >= since
* @return array of grade records for each requested assignment
* @since Moodle 2.4
*/
public static function get_grades($assignmentids, $since = 0) {
global $DB;
$params = self::validate_parameters(self::get_grades_parameters(),
array('assignmentids' => $assignmentids,
'since' => $since));
$assignments = array();
$warnings = array();
$requestedassignmentids = $params['assignmentids'];
// Check the user is allowed to get the grades for the assignments requested.
$placeholders = array();
list($sqlassignmentids, $placeholders) = $DB->get_in_or_equal($requestedassignmentids, SQL_PARAMS_NAMED);
$sql = "SELECT cm.id, cm.instance FROM {course_modules} cm JOIN {modules} md ON md.id = cm.module ".
"WHERE md.name = :modname AND cm.instance ".$sqlassignmentids;
$placeholders['modname'] = 'assign';
$cms = $DB->get_records_sql($sql, $placeholders);
foreach ($cms as $cm) {
try {
$context = context_module::instance($cm->id);
self::validate_context($context);
require_capability('mod/assign:grade', $context);
} catch (Exception $e) {
$requestedassignmentids = array_diff($requestedassignmentids, array($cm->instance));
$warning = array();
$warning['item'] = 'assignment';
$warning['itemid'] = $cm->instance;
$warning['warningcode'] = '1';
$warning['message'] = 'No access rights in module context';
$warnings[] = $warning;
}
}
// Create the query and populate an array of grade records from the recordset results.
if (count ($requestedassignmentids) > 0) {
$placeholders = array();
list($inorequalsql, $placeholders) = $DB->get_in_or_equal($requestedassignmentids, SQL_PARAMS_NAMED);
$sql = "SELECT ag.id,
ag.assignment,
ag.userid,
ag.timecreated,
ag.timemodified,
ag.grader,
ag.grade,
ag.attemptnumber
FROM {assign_grades} ag, {assign_submission} s
WHERE s.assignment $inorequalsql
AND s.userid = ag.userid
AND s.latest = 1
AND s.attemptnumber = ag.attemptnumber
AND ag.timemodified >= :since
AND ag.assignment = s.assignment
ORDER BY ag.assignment, ag.id";
$placeholders['since'] = $params['since'];
$rs = $DB->get_recordset_sql($sql, $placeholders);
$currentassignmentid = null;
$assignment = null;
foreach ($rs as $rd) {
$grade = array();
$grade['id'] = $rd->id;
$grade['userid'] = $rd->userid;
$grade['timecreated'] = $rd->timecreated;
$grade['timemodified'] = $rd->timemodified;
$grade['grader'] = $rd->grader;
$grade['attemptnumber'] = $rd->attemptnumber;
$grade['grade'] = (string)$rd->grade;
if (is_null($currentassignmentid) || ($rd->assignment != $currentassignmentid )) {
if (!is_null($assignment)) {
$assignments[] = $assignment;
}
$assignment = array();
$assignment['assignmentid'] = $rd->assignment;
$assignment['grades'] = array();
$requestedassignmentids = array_diff($requestedassignmentids, array($rd->assignment));
}
$assignment['grades'][] = $grade;
$currentassignmentid = $rd->assignment;
}
if (!is_null($assignment)) {
$assignments[] = $assignment;
}
$rs->close();
}
foreach ($requestedassignmentids as $assignmentid) {
$warning = array();
$warning['item'] = 'assignment';
$warning['itemid'] = $assignmentid;
$warning['warningcode'] = '3';
$warning['message'] = 'No grades found';
$warnings[] = $warning;
}
$result = array();
$result['assignments'] = $assignments;
$result['warnings'] = $warnings;
return $result;
}
/**
* Creates a grade single structure.
*
* @return external_single_structure a grade single structure.
* @since Moodle 3.1
*/
private static function get_grade_structure($required = VALUE_REQUIRED) {
return new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'grade id'),
'assignment' => new external_value(PARAM_INT, 'assignment id', VALUE_OPTIONAL),
'userid' => new external_value(PARAM_INT, 'student id'),
'attemptnumber' => new external_value(PARAM_INT, 'attempt number'),
'timecreated' => new external_value(PARAM_INT, 'grade creation time'),
'timemodified' => new external_value(PARAM_INT, 'grade last modified time'),
'grader' => new external_value(PARAM_INT, 'grader'),
'grade' => new external_value(PARAM_TEXT, 'grade'),
'gradefordisplay' => new external_value(PARAM_RAW, 'grade rendered into a format suitable for display',
VALUE_OPTIONAL),
), 'grade information', $required
);
}
/**
* Creates an assign_grades external_single_structure
* @return external_single_structure
* @since Moodle 2.4
*/
private static function assign_grades() {
return new external_single_structure(
array (
'assignmentid' => new external_value(PARAM_INT, 'assignment id'),
'grades' => new external_multiple_structure(self::get_grade_structure())
)
);
}
/**
* Describes the get_grades return value
* @return external_single_structure
* @since Moodle 2.4
*/
public static function get_grades_returns() {
return new external_single_structure(
array(
'assignments' => new external_multiple_structure(self::assign_grades(), 'list of assignment grade information'),
'warnings' => new external_warnings('item is always \'assignment\'',
'when errorcode is 3 then itemid is an assignment id. When errorcode is 1, itemid is a course module id',
'errorcode can be 3 (no grades found) or 1 (no permission to get grades)')
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.4
*/
public static function get_assignments_parameters() {
return new external_function_parameters(
array(
'courseids' => new external_multiple_structure(
new external_value(PARAM_INT, 'course id, empty for retrieving all the courses where the user is enroled in'),
'0 or more course ids',
VALUE_DEFAULT, array()
),
'capabilities' => new external_multiple_structure(
new external_value(PARAM_CAPABILITY, 'capability'),
'list of capabilities used to filter courses',
VALUE_DEFAULT, array()
),
'includenotenrolledcourses' => new external_value(PARAM_BOOL, 'whether to return courses that the user can see
even if is not enroled in. This requires the parameter courseids
to not be empty.', VALUE_DEFAULT, false)
)
);
}
/**
* Returns an array of courses the user is enrolled, and for each course all of the assignments that the user can
* view within that course.
*
* @param array $courseids An optional array of course ids. If provided only assignments within the given course
* will be returned. If the user is not enrolled in or can't view a given course a warning will be generated and returned.
* @param array $capabilities An array of additional capability checks you wish to be made on the course context.
* @param bool $includenotenrolledcourses Wheter to return courses that the user can see even if is not enroled in.
* This requires the parameter $courseids to not be empty.
* @return An array of courses and warnings.
* @since Moodle 2.4
*/
public static function get_assignments($courseids = array(), $capabilities = array(), $includenotenrolledcourses = false) {
global $USER, $DB, $CFG;
$params = self::validate_parameters(
self::get_assignments_parameters(),
array(
'courseids' => $courseids,
'capabilities' => $capabilities,
'includenotenrolledcourses' => $includenotenrolledcourses
)
);
$warnings = array();
$courses = array();
$fields = 'sortorder,shortname,fullname,timemodified';
// If the courseids list is empty, we return only the courses where the user is enrolled in.
if (empty($params['courseids'])) {
$courses = enrol_get_users_courses($USER->id, true, $fields);
$courseids = array_keys($courses);
} else if ($includenotenrolledcourses) {
// In this case, we don't have to check here for enrolmnents. Maybe the user can see the course even if is not enrolled.
$courseids = $params['courseids'];
} else {
// We need to check for enrolments.
$mycourses = enrol_get_users_courses($USER->id, true, $fields);
$mycourseids = array_keys($mycourses);
foreach ($params['courseids'] as $courseid) {
if (!in_array($courseid, $mycourseids)) {
unset($courses[$courseid]);
$warnings[] = array(
'item' => 'course',
'itemid' => $courseid,
'warningcode' => '2',
'message' => 'User is not enrolled or does not have requested capability'
);
} else {
$courses[$courseid] = $mycourses[$courseid];
}
}
$courseids = array_keys($courses);
}
foreach ($courseids as $cid) {
try {
$context = context_course::instance($cid);
self::validate_context($context);
// Check if this course was already loaded (by enrol_get_users_courses).
if (!isset($courses[$cid])) {
$courses[$cid] = get_course($cid);
}
$courses[$cid]->contextid = $context->id;
} catch (Exception $e) {
unset($courses[$cid]);
$warnings[] = array(
'item' => 'course',
'itemid' => $cid,
'warningcode' => '1',
'message' => 'No access rights in course context '.$e->getMessage()
);
continue;
}
if (count($params['capabilities']) > 0 && !has_all_capabilities($params['capabilities'], $context)) {
unset($courses[$cid]);
}
}
$extrafields='m.id as assignmentid, ' .
'm.course, ' .
'm.nosubmissions, ' .
'm.submissiondrafts, ' .
'm.sendnotifications, '.
'm.sendlatenotifications, ' .
'm.sendstudentnotifications, ' .
'm.duedate, ' .
'm.allowsubmissionsfromdate, '.
'm.grade, ' .
'm.timemodified, '.
'm.completionsubmit, ' .
'm.cutoffdate, ' .
'm.teamsubmission, ' .
'm.requireallteammemberssubmit, '.
'm.teamsubmissiongroupingid, ' .
'm.blindmarking, ' .
'm.revealidentities, ' .
'm.attemptreopenmethod, '.
'm.maxattempts, ' .
'm.markingworkflow, ' .
'm.markingallocation, ' .
'm.requiresubmissionstatement, '.
'm.preventsubmissionnotingroup, '.
'm.intro, '.
'm.introformat';
$coursearray = array();
foreach ($courses as $id => $course) {
$assignmentarray = array();
// Get a list of assignments for the course.
if ($modules = get_coursemodules_in_course('assign', $courses[$id]->id, $extrafields)) {
foreach ($modules as $module) {
$context = context_module::instance($module->id);
try {
self::validate_context($context);
require_capability('mod/assign:view', $context);
} catch (Exception $e) {
$warnings[] = array(
'item' => 'module',
'itemid' => $module->id,
'warningcode' => '1',
'message' => 'No access rights in module context'
);
continue;
}
$configrecords = $DB->get_recordset('assign_plugin_config', array('assignment' => $module->assignmentid));
$configarray = array();
foreach ($configrecords as $configrecord) {
$configarray[] = array(
'id' => $configrecord->id,
'assignment' => $configrecord->assignment,
'plugin' => $configrecord->plugin,
'subtype' => $configrecord->subtype,
'name' => $configrecord->name,
'value' => $configrecord->value
);
}
$configrecords->close();
$assignment = array(
'id' => $module->assignmentid,
'cmid' => $module->id,
'course' => $module->course,
'name' => $module->name,
'nosubmissions' => $module->nosubmissions,
'submissiondrafts' => $module->submissiondrafts,
'sendnotifications' => $module->sendnotifications,
'sendlatenotifications' => $module->sendlatenotifications,
'sendstudentnotifications' => $module->sendstudentnotifications,
'duedate' => $module->duedate,
'allowsubmissionsfromdate' => $module->allowsubmissionsfromdate,
'grade' => $module->grade,
'timemodified' => $module->timemodified,
'completionsubmit' => $module->completionsubmit,
'cutoffdate' => $module->cutoffdate,
'teamsubmission' => $module->teamsubmission,
'requireallteammemberssubmit' => $module->requireallteammemberssubmit,
'teamsubmissiongroupingid' => $module->teamsubmissiongroupingid,
'blindmarking' => $module->blindmarking,
'revealidentities' => $module->revealidentities,
'attemptreopenmethod' => $module->attemptreopenmethod,
'maxattempts' => $module->maxattempts,
'markingworkflow' => $module->markingworkflow,
'markingallocation' => $module->markingallocation,
'requiresubmissionstatement' => $module->requiresubmissionstatement,
'preventsubmissionnotingroup' => $module->preventsubmissionnotingroup,
'configs' => $configarray
);
// Return or not intro and file attachments depending on the plugin settings.
$assign = new assign($context, null, null);
if ($assign->show_intro()) {
list($assignment['intro'], $assignment['introformat']) = external_format_text($module->intro,
$module->introformat, $context->id, 'mod_assign', 'intro', null);
$assignment['introfiles'] = external_util::get_area_files($context->id, 'mod_assign', 'intro', false,
false);
$fs = get_file_storage();
if ($files = $fs->get_area_files($context->id, 'mod_assign', ASSIGN_INTROATTACHMENT_FILEAREA,
0, 'timemodified', false)) {
$assignment['introattachments'] = array();
foreach ($files as $file) {
$filename = $file->get_filename();
$assignment['introattachments'][] = array(
'filename' => $filename,
'mimetype' => $file->get_mimetype(),
'fileurl' => moodle_url::make_webservice_pluginfile_url(
$context->id, 'mod_assign', ASSIGN_INTROATTACHMENT_FILEAREA, 0, '/', $filename)->out(false)
);
}
}
}
$assignmentarray[] = $assignment;
}
}
$coursearray[]= array(
'id' => $courses[$id]->id,
'fullname' => external_format_string($courses[$id]->fullname, $course->contextid),
'shortname' => external_format_string($courses[$id]->shortname, $course->contextid),
'timemodified' => $courses[$id]->timemodified,
'assignments' => $assignmentarray
);
}
$result = array(
'courses' => $coursearray,
'warnings' => $warnings
);
return $result;
}
/**
* Creates an assignment external_single_structure
*
* @return external_single_structure
* @since Moodle 2.4
*/
private static function get_assignments_assignment_structure() {
return new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'assignment id'),
'cmid' => new external_value(PARAM_INT, 'course module id'),
'course' => new external_value(PARAM_INT, 'course id'),
'name' => new external_value(PARAM_TEXT, 'assignment name'),
'nosubmissions' => new external_value(PARAM_INT, 'no submissions'),
'submissiondrafts' => new external_value(PARAM_INT, 'submissions drafts'),
'sendnotifications' => new external_value(PARAM_INT, 'send notifications'),
'sendlatenotifications' => new external_value(PARAM_INT, 'send notifications'),
'sendstudentnotifications' => new external_value(PARAM_INT, 'send student notifications (default)'),
'duedate' => new external_value(PARAM_INT, 'assignment due date'),
'allowsubmissionsfromdate' => new external_value(PARAM_INT, 'allow submissions from date'),
'grade' => new external_value(PARAM_INT, 'grade type'),
'timemodified' => new external_value(PARAM_INT, 'last time assignment was modified'),
'completionsubmit' => new external_value(PARAM_INT, 'if enabled, set activity as complete following submission'),
'cutoffdate' => new external_value(PARAM_INT, 'date after which submission is not accepted without an extension'),
'teamsubmission' => new external_value(PARAM_INT, 'if enabled, students submit as a team'),
'requireallteammemberssubmit' => new external_value(PARAM_INT, 'if enabled, all team members must submit'),
'teamsubmissiongroupingid' => new external_value(PARAM_INT, 'the grouping id for the team submission groups'),
'blindmarking' => new external_value(PARAM_INT, 'if enabled, hide identities until reveal identities actioned'),
'revealidentities' => new external_value(PARAM_INT, 'show identities for a blind marking assignment'),
'attemptreopenmethod' => new external_value(PARAM_TEXT, 'method used to control opening new attempts'),
'maxattempts' => new external_value(PARAM_INT, 'maximum number of attempts allowed'),
'markingworkflow' => new external_value(PARAM_INT, 'enable marking workflow'),
'markingallocation' => new external_value(PARAM_INT, 'enable marking allocation'),
'requiresubmissionstatement' => new external_value(PARAM_INT, 'student must accept submission statement'),
'preventsubmissionnotingroup' => new external_value(PARAM_INT, 'Prevent submission not in group', VALUE_OPTIONAL),
'configs' => new external_multiple_structure(self::get_assignments_config_structure(), 'configuration settings'),
'intro' => new external_value(PARAM_RAW,
'assignment intro, not allways returned because it deppends on the activity configuration', VALUE_OPTIONAL),
'introformat' => new external_format_value('intro', VALUE_OPTIONAL),
'introfiles' => new external_files('Files in the introduction text', VALUE_OPTIONAL),
'introattachments' => new external_multiple_structure(
new external_single_structure(
array (
'filename' => new external_value(PARAM_FILE, 'file name'),
'mimetype' => new external_value(PARAM_RAW, 'mime type'),
'fileurl' => new external_value(PARAM_URL, 'file download url')
)
), 'intro attachments files', VALUE_OPTIONAL
)
), 'assignment information object');
}
/**
* Creates an assign_plugin_config external_single_structure
*
* @return external_single_structure
* @since Moodle 2.4
*/
private static function get_assignments_config_structure() {
return new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'assign_plugin_config id'),
'assignment' => new external_value(PARAM_INT, 'assignment id'),
'plugin' => new external_value(PARAM_TEXT, 'plugin'),
'subtype' => new external_value(PARAM_TEXT, 'subtype'),
'name' => new external_value(PARAM_TEXT, 'name'),
'value' => new external_value(PARAM_TEXT, 'value')
), 'assignment configuration object'
);
}
/**
* Creates a course external_single_structure
*
* @return external_single_structure
* @since Moodle 2.4
*/
private static function get_assignments_course_structure() {
return new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'course id'),
'fullname' => new external_value(PARAM_TEXT, 'course full name'),
'shortname' => new external_value(PARAM_TEXT, 'course short name'),
'timemodified' => new external_value(PARAM_INT, 'last time modified'),
'assignments' => new external_multiple_structure(self::get_assignments_assignment_structure(), 'assignment info')
), 'course information object'
);
}
/**
* Describes the return value for get_assignments
*
* @return external_single_structure
* @since Moodle 2.4
*/
public static function get_assignments_returns() {
return new external_single_structure(
array(
'courses' => new external_multiple_structure(self::get_assignments_course_structure(), 'list of courses'),
'warnings' => new external_warnings('item can be \'course\' (errorcode 1 or 2) or \'module\' (errorcode 1)',
'When item is a course then itemid is a course id. When the item is a module then itemid is a module id',
'errorcode can be 1 (no access rights) or 2 (not enrolled or no permissions)')
)
);
}
/**
* Return information (files and text fields) for the given plugins in the assignment.
*
* @param assign $assign the assignment object
* @param array $assignplugins array of assignment plugins (submission or feedback)
* @param stdClass $item the item object (submission or grade)
* @return array an array containing the plugins returned information
*/
private static function get_plugins_data($assign, $assignplugins, $item) {
global $CFG;
$plugins = array();
$fs = get_file_storage();
foreach ($assignplugins as $assignplugin) {
if (!$assignplugin->is_enabled() or !$assignplugin->is_visible()) {
continue;
}
$plugin = array(
'name' => $assignplugin->get_name(),
'type' => $assignplugin->get_type()
);
// Subtype is 'assignsubmission', type is currently 'file' or 'onlinetext'.
$component = $assignplugin->get_subtype().'_'.$assignplugin->get_type();
$fileareas = $assignplugin->get_file_areas();
foreach ($fileareas as $filearea => $name) {
$fileareainfo = array('area' => $filearea);
$files = $fs->get_area_files(
$assign->get_context()->id,
$component,
$filearea,
$item->id,
"timemodified",
false
);
foreach ($files as $file) {
$filepath = $file->get_filepath().$file->get_filename();
$fileurl = file_encode_url($CFG->wwwroot . '/webservice/pluginfile.php', '/' . $assign->get_context()->id .
'/' . $component. '/'. $filearea . '/' . $item->id . $filepath);
$fileinfo = array(
'filepath' => $filepath,
'fileurl' => $fileurl
);
$fileareainfo['files'][] = $fileinfo;
}
$plugin['fileareas'][] = $fileareainfo;
}
$editorfields = $assignplugin->get_editor_fields();
foreach ($editorfields as $name => $description) {
$editorfieldinfo = array(
'name' => $name,
'description' => $description,
'text' => $assignplugin->get_editor_text($name, $item->id),
'format' => $assignplugin->get_editor_format($name, $item->id)
);
// Now format the text.
foreach ($fileareas as $filearea => $name) {
list($editorfieldinfo['text'], $editorfieldinfo['format']) = external_format_text(
$editorfieldinfo['text'], $editorfieldinfo['format'], $assign->get_context()->id,
$component, $filearea, $item->id);
}
$plugin['editorfields'][] = $editorfieldinfo;
}
$plugins[] = $plugin;
}
return $plugins;
}
/**
* Describes the parameters for get_submissions
*
* @return external_external_function_parameters
* @since Moodle 2.5
*/
public static function get_submissions_parameters() {
return new external_function_parameters(
array(
'assignmentids' => new external_multiple_structure(
new external_value(PARAM_INT, 'assignment id'),
'1 or more assignment ids',
VALUE_REQUIRED),
'status' => new external_value(PARAM_ALPHA, 'status', VALUE_DEFAULT, ''),
'since' => new external_value(PARAM_INT, 'submitted since', VALUE_DEFAULT, 0),
'before' => new external_value(PARAM_INT, 'submitted before', VALUE_DEFAULT, 0)
)
);
}
/**
* Returns submissions for the requested assignment ids
*
* @param int[] $assignmentids
* @param string $status only return submissions with this status
* @param int $since only return submissions with timemodified >= since
* @param int $before only return submissions with timemodified <= before
* @return array of submissions for each requested assignment
* @since Moodle 2.5
*/
public static function get_submissions($assignmentids, $status = '', $since = 0, $before = 0) {
global $DB, $CFG;
$params = self::validate_parameters(self::get_submissions_parameters(),
array('assignmentids' => $assignmentids,
'status' => $status,
'since' => $since,
'before' => $before));
$warnings = array();
$assignments = array();
// Check the user is allowed to get the submissions for the assignments requested.
$placeholders = array();
list($inorequalsql, $placeholders) = $DB->get_in_or_equal($params['assignmentids'], SQL_PARAMS_NAMED);
$sql = "SELECT cm.id, cm.instance FROM {course_modules} cm JOIN {modules} md ON md.id = cm.module ".
"WHERE md.name = :modname AND cm.instance ".$inorequalsql;
$placeholders['modname'] = 'assign';
$cms = $DB->get_records_sql($sql, $placeholders);
$assigns = array();
foreach ($cms as $cm) {
try {
$context = context_module::instance($cm->id);
self::validate_context($context);
require_capability('mod/assign:grade', $context);
$assign = new assign($context, null, null);
$assigns[] = $assign;
} catch (Exception $e) {
$warnings[] = array(
'item' => 'assignment',
'itemid' => $cm->instance,
'warningcode' => '1',
'message' => 'No access rights in module context'
);
}
}
foreach ($assigns as $assign) {
$submissions = array();
$placeholders = array('assignid1' => $assign->get_instance()->id,
'assignid2' => $assign->get_instance()->id);
$submissionmaxattempt = 'SELECT mxs.userid, MAX(mxs.attemptnumber) AS maxattempt
FROM {assign_submission} mxs
WHERE mxs.assignment = :assignid1 GROUP BY mxs.userid';
$sql = "SELECT mas.id, mas.assignment,mas.userid,".
"mas.timecreated,mas.timemodified,mas.status,mas.groupid,mas.attemptnumber ".
"FROM {assign_submission} mas ".
"JOIN ( " . $submissionmaxattempt . " ) smx ON mas.userid = smx.userid ".
"WHERE mas.assignment = :assignid2 AND mas.attemptnumber = smx.maxattempt";
if (!empty($params['status'])) {
$placeholders['status'] = $params['status'];
$sql = $sql." AND mas.status = :status";
}
if (!empty($params['before'])) {
$placeholders['since'] = $params['since'];
$placeholders['before'] = $params['before'];
$sql = $sql." AND mas.timemodified BETWEEN :since AND :before";
} else {
$placeholders['since'] = $params['since'];
$sql = $sql." AND mas.timemodified >= :since";
}
$submissionrecords = $DB->get_records_sql($sql, $placeholders);
if (!empty($submissionrecords)) {
$submissionplugins = $assign->get_submission_plugins();
foreach ($submissionrecords as $submissionrecord) {
$submission = array(
'id' => $submissionrecord->id,
'userid' => $submissionrecord->userid,
'timecreated' => $submissionrecord->timecreated,
'timemodified' => $submissionrecord->timemodified,
'status' => $submissionrecord->status,
'attemptnumber' => $submissionrecord->attemptnumber,
'groupid' => $submissionrecord->groupid,
'plugins' => self::get_plugins_data($assign, $submissionplugins, $submissionrecord)
);
$submissions[] = $submission;
}
} else {
$warnings[] = array(
'item' => 'module',
'itemid' => $assign->get_instance()->id,
'warningcode' => '3',
'message' => 'No submissions found'
);
}
$assignments[] = array(
'assignmentid' => $assign->get_instance()->id,
'submissions' => $submissions
);
}
$result = array(
'assignments' => $assignments,
'warnings' => $warnings
);
return $result;
}
/**
* Creates an assignment plugin structure.
*
* @return external_single_structure the plugin structure
*/
private static function get_plugin_structure() {
return new external_single_structure(
array(
'type' => new external_value(PARAM_TEXT, 'submission plugin type'),
'name' => new external_value(PARAM_TEXT, 'submission plugin name'),
'fileareas' => new external_multiple_structure(
new external_single_structure(
array (
'area' => new external_value (PARAM_TEXT, 'file area'),
'files' => new external_multiple_structure(
new external_single_structure(
array (
'filepath' => new external_value (PARAM_TEXT, 'file path'),
'fileurl' => new external_value (PARAM_URL, 'file download url',
VALUE_OPTIONAL)
)
), 'files', VALUE_OPTIONAL
)
)
), 'fileareas', VALUE_OPTIONAL
),
'editorfields' => new external_multiple_structure(
new external_single_structure(
array(
'name' => new external_value(PARAM_TEXT, 'field name'),
'description' => new external_value(PARAM_TEXT, 'field description'),
'text' => new external_value (PARAM_RAW, 'field value'),
'format' => new external_format_value ('text')
)
)
, 'editorfields', VALUE_OPTIONAL
)
)
);
}
/**
* Creates a submission structure.
*
* @return external_single_structure the submission structure
*/
private static function get_submission_structure($required = VALUE_REQUIRED) {
return new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'submission id'),
'userid' => new external_value(PARAM_INT, 'student id'),
'attemptnumber' => new external_value(PARAM_INT, 'attempt number'),
'timecreated' => new external_value(PARAM_INT, 'submission creation time'),
'timemodified' => new external_value(PARAM_INT, 'submission last modified time'),
'status' => new external_value(PARAM_TEXT, 'submission status'),
'groupid' => new external_value(PARAM_INT, 'group id'),
'assignment' => new external_value(PARAM_INT, 'assignment id', VALUE_OPTIONAL),
'latest' => new external_value(PARAM_INT, 'latest attempt', VALUE_OPTIONAL),
'plugins' => new external_multiple_structure(self::get_plugin_structure(), 'plugins', VALUE_OPTIONAL)
), 'submission info', $required
);
}
/**
* Creates an assign_submissions external_single_structure
*
* @return external_single_structure
* @since Moodle 2.5
*/
private static function get_submissions_structure() {
return new external_single_structure(
array (
'assignmentid' => new external_value(PARAM_INT, 'assignment id'),
'submissions' => new external_multiple_structure(self::get_submission_structure())
)
);
}
/**
* Describes the get_submissions return value
*
* @return external_single_structure
* @since Moodle 2.5
*/
public static function get_submissions_returns() {
return new external_single_structure(
array(
'assignments' => new external_multiple_structure(self::get_submissions_structure(), 'assignment submissions'),
'warnings' => new external_warnings()
)
);
}
/**
* Describes the parameters for set_user_flags
* @return external_function_parameters
* @since Moodle 2.6
*/
public static function set_user_flags_parameters() {
return new external_function_parameters(
array(
'assignmentid' => new external_value(PARAM_INT, 'assignment id'),
'userflags' => new external_multiple_structure(
new external_single_structure(
array(
'userid' => new external_value(PARAM_INT, 'student id'),
'locked' => new external_value(PARAM_INT, 'locked', VALUE_OPTIONAL),
'mailed' => new external_value(PARAM_INT, 'mailed', VALUE_OPTIONAL),
'extensionduedate' => new external_value(PARAM_INT, 'extension due date', VALUE_OPTIONAL),
'workflowstate' => new external_value(PARAM_TEXT, 'marking workflow state', VALUE_OPTIONAL),
'allocatedmarker' => new external_value(PARAM_INT, 'allocated marker', VALUE_OPTIONAL)
)
)
)
)
);
}
/**
* Create or update user_flags records
*
* @param int $assignmentid the assignment for which the userflags are created or updated
* @param array $userflags An array of userflags to create or update
* @return array containing success or failure information for each record
* @since Moodle 2.6
*/
public static function set_user_flags($assignmentid, $userflags = array()) {
global $CFG, $DB;
$params = self::validate_parameters(self::set_user_flags_parameters(),
array('assignmentid' => $assignmentid,
'userflags' => $userflags));
// Load assignment if it exists and if the user has the capability.
list($assign, $course, $cm, $context) = self::validate_assign($params['assignmentid']);
require_capability('mod/assign:grade', $context);
$results = array();
foreach ($params['userflags'] as $userflag) {
$success = true;
$result = array();
$record = $assign->get_user_flags($userflag['userid'], false);
if ($record) {
if (isset($userflag['locked'])) {
$record->locked = $userflag['locked'];
}
if (isset($userflag['mailed'])) {
$record->mailed = $userflag['mailed'];
}
if (isset($userflag['extensionduedate'])) {
$record->extensionduedate = $userflag['extensionduedate'];
}
if (isset($userflag['workflowstate'])) {
$record->workflowstate = $userflag['workflowstate'];
}
if (isset($userflag['allocatedmarker'])) {
$record->allocatedmarker = $userflag['allocatedmarker'];
}
if ($assign->update_user_flags($record)) {
$result['id'] = $record->id;
$result['userid'] = $userflag['userid'];
} else {
$result['id'] = $record->id;
$result['userid'] = $userflag['userid'];
$result['errormessage'] = 'Record created but values could not be set';
}
} else {
$record = $assign->get_user_flags($userflag['userid'], true);
$setfields = isset($userflag['locked'])
|| isset($userflag['mailed'])
|| isset($userflag['extensionduedate'])
|| isset($userflag['workflowstate'])
|| isset($userflag['allocatedmarker']);
if ($record) {
if ($setfields) {
if (isset($userflag['locked'])) {
$record->locked = $userflag['locked'];
}
if (isset($userflag['mailed'])) {
$record->mailed = $userflag['mailed'];
}
if (isset($userflag['extensionduedate'])) {
$record->extensionduedate = $userflag['extensionduedate'];
}
if (isset($userflag['workflowstate'])) {
$record->workflowstate = $userflag['workflowstate'];
}
if (isset($userflag['allocatedmarker'])) {
$record->allocatedmarker = $userflag['allocatedmarker'];
}