Assinglib para funcionar con uploadgroup mod/assign/submission/file/locallib.php

locallib.php

    /**
     * Return true if this plugin can upgrade an old Moodle 2.2 assignment of this type
     * and version.
     *
     * @param string $type
     * @param int $version
     * @return bool True if upgrade is possible
     */
    public function can_upgrade($type, $version) {

        $uploadsingletype ='uploadsingle';
        $uploadtype ='upload';
        $uploadgroup ='uploadsinglegroup';

        if (($type == $uploadsingletype || $type == $uploadtype || $type == $uploadgroup) && $version >= 2011112900) {
            return true;
        }
        return false;
    }


    /**
     * Upgrade the settings from the old assignment
     * to the new plugin based one
     *
     * @param context $oldcontext - the old assignment context
     * @param stdClass $oldassignment - the old assignment data record
     * @param string $log record log events here
     * @return bool Was it a success? (false will trigger rollback)
     */
    public function upgrade_settings(context $oldcontext, stdClass $oldassignment, & $log) {
        global $DB;

        if ($oldassignment->assignmenttype == 'uploadsingle') {
            $this->set_config('maxfilesubmissions', 1);
            $this->set_config('maxsubmissionsizebytes', $oldassignment->maxbytes);
            return true;
        } else if ($oldassignment->assignmenttype == 'upload') {
            $this->set_config('maxfilesubmissions', $oldassignment->var1);
            $this->set_config('maxsubmissionsizebytes', $oldassignment->maxbytes);

            // Advanced file upload uses a different setting to do the same thing.
            $DB->set_field('assign',
                           'submissiondrafts',
                           $oldassignment->var4,
                           array('id'=>$this->assignment->get_instance()->id));

            // Convert advanced file upload "hide description before due date" setting.
            $alwaysshow = 0;
            if (!$oldassignment->var3) {
                $alwaysshow = 1;
            }
            $DB->set_field('assign',
                           'alwaysshowdescription',
                           $alwaysshow,
                           array('id'=>$this->assignment->get_instance()->id));
            return true;
        } else if ($oldassignment->assignmenttype == 'uploadsinglegroup') {
            $this->set_config('maxfilesubmissions', 1);
            $this->set_config('maxsubmissionsizebytes', $oldassignment->maxbytes);
            $DB->set_field('assign',
                           'teamsubmission',
                           1,
                           array('id'=>$this->assignment->get_instance()->id));
            return true;
        }
    }