import_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->libdir.'/formslib.php');

class question_import_form extends moodleform {

    function definition() {
        global $COURSE;
        $mform    =& $this->_form;

        $defaultcategory   = $this->_customdata['defaultcategory'];
        $contexts   = $this->_customdata['contexts'];

//--------------------------------------------------------------------------------
        $mform->addElement('header','fileformat', get_string('fileformat','quiz'));
        $fileformatnames = get_import_export_formats('import');
        $i = 0 ;
        foreach ($fileformatnames as $shortname => $fileformatname) {
            $currentgrp1 = array();
            $currentgrp1[] = &$mform->createElement('radio','format','',$fileformatname,$shortname);
            $mform->addGroup($currentgrp1,"formathelp[$i]",'',array('<br />'),false);
            $mform->addHelpButton("formathelp[$i]", $shortname, 'qformat_'.$shortname);
            $i++ ;
        }
        $mform->addRule("formathelp[0]", null, 'required', null, 'client' );
//--------------------------------------------------------------------------------
        $mform->addElement('header','general', get_string('general', 'form'));

        $mform->addElement('questioncategory', 'category', get_string('importcategory', 'question'), compact('contexts'));
        $mform->setDefault('category', $defaultcategory);
        $mform->addHelpButton('category', 'importcategory', 'question');

        $categorygroup = array();
        $categorygroup[] =& $mform->createElement('checkbox', 'catfromfile', '', get_string('getcategoryfromfile', 'question'));
        $categorygroup[] =& $mform->createElement('checkbox', 'contextfromfile', '', get_string('getcontextfromfile', 'question'));
        $mform->addGroup($categorygroup, 'categorygroup', '', '', false);
        $mform->disabledIf('categorygroup', 'catfromfile', 'notchecked');
        $mform->setDefault('catfromfile', 1);
        $mform->setDefault('contextfromfile', 1);


        $matchgrades = array();
        $matchgrades['error'] = get_string('matchgradeserror','quiz');
        $matchgrades['nearest'] = get_string('matchgradesnearest','quiz');
        $mform->addElement('select', 'matchgrades', get_string('matchgrades', 'question'), $matchgrades);
        $mform->addHelpButton('matchgrades', 'matchgrades', 'question');
        $mform->setDefault('matchgrades', 'error');

        $mform->addElement('selectyesno', 'stoponerror', get_string('stoponerror', 'question'));
        $mform->setDefault('stoponerror', 1);
        $mform->addHelpButton('stoponerror', 'stoponerror', 'question');

//--------------------------------------------------------------------------------
        $mform->addElement('header', 'importfileupload', get_string('importfromthisfile','quiz'));

        $mform->addElement('filepicker', 'newfile', get_string('import', 'quiz'));
//--------------------------------------------------------------------------------
        $mform->addElement('submit', 'submitbutton', get_string('import', 'quiz'));

//--------------------------------------------------------------------------------
        //if (has_capability('moodle/course:managefiles', get_context_instance(CONTEXT_COURSE, $COURSE->id))){
            //$mform->addElement('header', 'importfilearea', get_string('importfilearea','quiz'));
            //TODO: MDL-16094
            //$mform->addElement('choosecoursefile', 'choosefile', get_string('choosefile','quiz'));
//--------------------------------------------------------------------------------
            //$mform->addElement('submit', 'submitbutton', get_string('importfromthisfile','quiz'));
        //}
//--------------------------------------------------------------------------------
        $mform->addElement('static', 'dummy', '');
        $mform->closeHeaderBefore('dummy');

        // set a template for the format select elements
        $renderer =& $mform->defaultRenderer();
        $template = "{help} {element}\n";
        $renderer->setGroupElementTemplate($template, 'format');
    }

    public function validation($data, $files){
        $errors = parent::validation($data, $files);
        return $errors; // TODO.
        // If a file is uploaded return
        if ($data['choosefile'] || $files['newfile']) {
            return $errors;
        }
        // If file is not uploaded from  file upload
        if (!$files['newfile']) {
            $errors['newfile'] = get_string('importfromupload', 'question');
        }
        // If filke is not imported from course files
        if (!$data['choosefile'] && !$files['newfile']) {
            $errors['choosefile'] = get_string('importfromcoursefiles', 'question');
        }
        return $errors;
    }
}