gradeimporter/submission_form.php

<?php
    if (!defined('MOODLE_INTERNAL')) {
        die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
    }

    require_once($CFG->dirroot.'/course/moodleform_mod.php');
   // require_once($CFG->dirroot.'/mod/gradeimporter/lib.php');

    class mod_submission_form extends moodleform_mod{
        
        function definition(){
            global $CFG, $DB, $OUTPUT;

            $mform =& $this->_form;
            $gradeimporter = $this->_customdata;

            $mform->addElement('text', 'name', get_string('name', 'gradeimporter'), array('size'=>'64'));
            $mform->setType('name', PARAM_TEXT);
            $mform->addRule('name', get_string('error_nameField', 'gradeimporter'), 'required', null, 'client');

            $this->standard_intro_elements(get_string('description', 'gradeimporter'));

            $mform->addElement('filemanager', 'submissionFiles', getString('submissionFiles', 'gradeimporter'), null,
                                array('subdirs' => 1, 'maxbytes' => $maxbytes, 'areamaxbytes' => $maxbytes, 'maxfiles' => -1,
                                'accepted_types' => array('*'),  'return_types' => FILE_INTERNAL | FILE_EXTERNAL)); 
                                                                //restrict accepted types to compacted?
            $mform->addHelpButton('submissionFiles', 'helpsubmissionfiles', 'gradeimporter');
            
            //csv delimiter

            $csv_delimiter = array();
            $csv_delimiter[1] = ',';
            /*$csv_delimiter[2] = ';';
            $csv_delimiter[3] = ':';
            $csv_delimiter[4] = '\t';
*/        
            $mform->addElement('select', 'csv_delimiter', get_string('choose_type_activity', 'iassign'), $csv_delimiter, array('onChange' => 'config_type(this.value);'));
            $mform->setDefault('csv_delimiter', 1); // default csv_delimiter = 3
            $mform->addHelpButton('csv_delimiter', 'helpcsvdelimiter', 'gradeimporter');

            //submissionType


            //if the grades go into the gradebook or not
            $radioarray = array();
            $radioarray[] = $mform->createElement('radio', 'gradebook', '', get_string('gradebookY','gradeimporter'), 1, $attributes);
            $radioarray[] = $mform->createElement('radio', 'gradebook', '', get_string('gradebookN', 'gradeimporter'), 0, $attributes);
            $mform->addgroup($radioarray, 'radioar', '', array(' '), false);
            $mform->setDefault('gradebook', 0);


            //if students can se this submission or not
            $visibilityar = array();
            $visibilityar[] = $mform->createElement('radio', 'visibility', '', get_string('visibilityY','gradeimporter'), 1, $attributes);
            $visibilityar[] = $mform->createElement('radio', 'visibility', '', get_string('visibilityN','gradeimporter'), 0, $attributes);
            $mform->addgroup($visibilityar, 'radioar', '', array(' '), false);
            $mform->setDefault('visibility', 1);

            $this->add_action_buttons();
        }
    }