moodle-mod-customcert/classes/edit_form.php

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<?php
// This file is part of the customcert module for 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/>.
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/**
* This file contains the form for handling the layout of the customcert instance.
*
* @package mod_customcert
* @copyright 2013 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_customcert;
defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
require_once($CFG->dirroot . '/course/moodleform_mod.php');
require_once($CFG->dirroot . '/mod/customcert/includes/colourpicker.php');
\MoodleQuickForm::registerElementType('customcert_colourpicker',
$CFG->dirroot . '/mod/customcert/includes/colourpicker.php', 'MoodleQuickForm_customcert_colourpicker');
/**
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* The form for handling the layout of the customcert instance.
*
* @package mod_customcert
* @copyright 2013 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class edit_form extends \moodleform {
/**
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* @var int The id of the template being used.
*/
protected $tid = null;
/**
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* @var int The total number of pages for this cert.
*/
protected $numpages = 1;
/**
* Form definition.
*/
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public function definition() {
global $DB, $OUTPUT;
$mform =& $this->_form;
$mform->addElement('text', 'name', get_string('name', 'customcert'), 'maxlength="255"');
$mform->setType('name', PARAM_TEXT);
$mform->addRule('name', null, 'required');
// Get the number of pages for this module.
if (isset($this->_customdata['tid'])) {
$this->tid = $this->_customdata['tid'];
if ($pages = $DB->get_records('customcert_pages', array('templateid' => $this->tid), 'sequence')) {
$this->numpages = count($pages);
foreach ($pages as $p) {
$this->add_customcert_page_elements($p);
}
}
} else { // Add a new template.
// Create a 'fake' page to display the elements on - not yet saved in the DB.
$page = new \stdClass();
$page->id = 0;
$page->sequence = 1;
$this->add_customcert_page_elements($page);
}
// Link to add another page, only display it when the template has been created.
if (isset($this->_customdata['tid'])) {
$addpagelink = new \moodle_url('/mod/customcert/edit.php',
array(
'tid' => $this->tid,
'aid' => 1,
'action' => 'addpage',
'sesskey' => sesskey()
)
);
$icon = $OUTPUT->pix_icon('t/switch_plus', get_string('addcertpage', 'customcert'));
$addpagehtml = \html_writer::link($addpagelink, $icon . get_string('addcertpage', 'customcert'));
$mform->addElement('html', \html_writer::tag('div', $addpagehtml, array('class' => 'addpage')));
}
// Add the submit buttons.
$group = array();
$group[] = $mform->createElement('submit', 'submitbtn', get_string('savechanges'));
$group[] = $mform->createElement('submit', 'previewbtn', get_string('savechangespreview', 'customcert'), array(), false);
$mform->addElement('group', 'submitbtngroup', '', $group, '', false);
$mform->addElement('hidden', 'tid');
$mform->setType('tid', PARAM_INT);
$mform->setDefault('tid', $this->tid);
}
/**
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* Fill in the current page data for this customcert.
*/
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public function definition_after_data() {
global $DB;
$mform = $this->_form;
// Check that we are updating a current customcert.
if ($this->tid) {
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// Get the pages for this customcert.
if ($pages = $DB->get_records('customcert_pages', array('templateid' => $this->tid))) {
// Loop through the pages.
foreach ($pages as $p) {
// Set the width.
$element = $mform->getElement('pagewidth_' . $p->id);
$element->setValue($p->width);
// Set the height.
$element = $mform->getElement('pageheight_' . $p->id);
$element->setValue($p->height);
// Set the left margin.
$element = $mform->getElement('pageleftmargin_' . $p->id);
$element->setValue($p->leftmargin);
// Set the right margin.
$element = $mform->getElement('pagerightmargin_' . $p->id);
$element->setValue($p->rightmargin);
}
}
}
}
/**
* Some basic validation.
*
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* @param array $data
* @param array $files
* @return array the errors that were found
*/
public function validation($data, $files) {
$errors = parent::validation($data, $files);
if (\core_text::strlen($data['name']) > 255) {
$errors['name'] = get_string('nametoolong', 'customcert');
}
// Go through the data and check any width, height or margin values.
foreach ($data as $key => $value) {
if (strpos($key, 'pagewidth_') !== false) {
$page = str_replace('pagewidth_', '', $key);
$widthid = 'pagewidth_' . $page;
// Validate that the width is a valid value.
if ((!isset($data[$widthid])) || (!is_numeric($data[$widthid])) || ($data[$widthid] <= 0)) {
$errors[$widthid] = get_string('invalidwidth', 'customcert');
}
}
if (strpos($key, 'pageheight_') !== false) {
$page = str_replace('pageheight_', '', $key);
$heightid = 'pageheight_' . $page;
// Validate that the height is a valid value.
if ((!isset($data[$heightid])) || (!is_numeric($data[$heightid])) || ($data[$heightid] <= 0)) {
$errors[$heightid] = get_string('invalidheight', 'customcert');
}
}
if (strpos($key, 'pageleftmargin_') !== false) {
// Validate that the left margin is a valid value.
if (isset($data[$key]) && ($data[$key] < 0)) {
$errors[$key] = get_string('invalidmargin', 'customcert');
}
}
if (strpos($key, 'pagerightmargin_') !== false) {
// Validate that the right margin is a valid value.
if (isset($data[$key]) && ($data[$key] < 0)) {
$errors[$key] = get_string('invalidmargin', 'customcert');
}
}
}
return $errors;
}
/**
* Adds the page elements to the form.
*
* @param \stdClass $page the customcert page
*/
protected function add_customcert_page_elements($page) {
global $DB, $OUTPUT;
// Create the form object.
$mform =& $this->_form;
if ($this->numpages > 1) {
$mform->addElement('header', 'page_' . $page->id, get_string('page', 'customcert', $page->sequence));
}
$editlink = '/mod/customcert/edit.php';
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$editlinkparams = array('tid' => $this->tid, 'sesskey' => sesskey());
$editelementlink = '/mod/customcert/edit_element.php';
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$editelementlinkparams = array('tid' => $this->tid, 'sesskey' => sesskey());
// Place the ordering arrows.
// Only display the move up arrow if it is not the first.
if ($page->sequence > 1) {
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$url = new \moodle_url($editlink, $editlinkparams + array('action' => 'pmoveup', 'aid' => $page->id));
$mform->addElement('html', $OUTPUT->action_icon($url, new \pix_icon('t/up', get_string('moveup'))));
}
// Only display the move down arrow if it is not the last.
if ($page->sequence < $this->numpages) {
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$url = new \moodle_url($editlink, $editlinkparams + array('action' => 'pmovedown', 'aid' => $page->id));
$mform->addElement('html', $OUTPUT->action_icon($url, new \pix_icon('t/down', get_string('movedown'))));
}
$mform->addElement('text', 'pagewidth_' . $page->id, get_string('width', 'customcert'));
$mform->setType('pagewidth_' . $page->id, PARAM_INT);
$mform->setDefault('pagewidth_' . $page->id, '210');
$mform->addRule('pagewidth_' . $page->id, null, 'required', null, 'client');
$mform->addHelpButton('pagewidth_' . $page->id, 'width', 'customcert');
$mform->addElement('text', 'pageheight_' . $page->id, get_string('height', 'customcert'));
$mform->setType('pageheight_' . $page->id, PARAM_INT);
$mform->setDefault('pageheight_' . $page->id, '297');
$mform->addRule('pageheight_' . $page->id, null, 'required', null, 'client');
$mform->addHelpButton('pageheight_' . $page->id, 'height', 'customcert');
$mform->addElement('text', 'pageleftmargin_' . $page->id, get_string('leftmargin', 'customcert'));
$mform->setType('pageleftmargin_' . $page->id, PARAM_INT);
$mform->setDefault('pageleftmargin_' . $page->id, 0);
$mform->addHelpButton('pageleftmargin_' . $page->id, 'leftmargin', 'customcert');
$mform->addElement('text', 'pagerightmargin_' . $page->id, get_string('rightmargin', 'customcert'));
$mform->setType('pagerightmargin_' . $page->id, PARAM_INT);
$mform->setDefault('pagerightmargin_' . $page->id, 0);
$mform->addHelpButton('pagerightmargin_' . $page->id, 'rightmargin', 'customcert');
// Check if there are elements to add.
if ($elements = $DB->get_records('customcert_elements', array('pageid' => $page->id), 'sequence ASC')) {
// Get the total number of elements.
$numelements = count($elements);
// Create a table to display these elements.
$table = new \html_table();
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$table->attributes = array('class' => 'generaltable elementstable');
$table->head = array(get_string('name', 'customcert'), get_string('type', 'customcert'), '');
$table->align = array('left', 'left', 'left');
// Loop through and add the elements to the table.
foreach ($elements as $element) {
$elementname = new \core\output\inplace_editable('mod_customcert', 'elementname', $element->id,
true, format_string($element->name), $element->name);
$row = new \html_table_row();
$row->cells[] = $OUTPUT->render($elementname);
$row->cells[] = $element->element;
// Link to edit this element.
$link = new \moodle_url($editelementlink, $editelementlinkparams + array('id' => $element->id,
'action' => 'edit'));
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$icons = $OUTPUT->action_icon($link, new \pix_icon('t/edit', get_string('edit')), null,
array('class' => 'action-icon edit-icon'));
// Link to delete the element.
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$link = new \moodle_url($editlink, $editlinkparams + array('action' => 'deleteelement',
'aid' => $element->id));
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$icons .= $OUTPUT->action_icon($link, new \pix_icon('t/delete', get_string('delete')), null,
array('class' => 'action-icon delete-icon'));
// Now display any moving arrows if they are needed.
if ($numelements > 1) {
// Only display the move up arrow if it is not the first.
$moveicons = '';
if ($element->sequence > 1) {
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$url = new \moodle_url($editlink, $editlinkparams + array('action' => 'emoveup',
'aid' => $element->id));
$moveicons .= $OUTPUT->action_icon($url, new \pix_icon('t/up', get_string('moveup')));
}
// Only display the move down arrow if it is not the last.
if ($element->sequence < $numelements) {
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$url = new \moodle_url($editlink, $editlinkparams + array('action' => 'emovedown',
'aid' => $element->id));
$moveicons .= $OUTPUT->action_icon($url, new \pix_icon('t/down', get_string('movedown')));
}
$icons .= $moveicons;
}
$row->cells[] = $icons;
$table->data[] = $row;
}
// Create link to order the elements.
$link = \html_writer::link(new \moodle_url('/mod/customcert/rearrange.php', array('pid' => $page->id)),
get_string('rearrangeelements', 'customcert'));
// Add the table to the form.
$mform->addElement('static', 'elements_' . $page->id, get_string('elements', 'customcert'), \html_writer::table($table)
. \html_writer::tag( 'div', $link));
$mform->addHelpButton('elements_' . $page->id, 'elements', 'customcert');
}
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$group = array();
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$group[] = $mform->createElement('select', 'element_' . $page->id, '', element_helper::get_available_element_types());
$group[] = $mform->createElement('submit', 'addelement_' . $page->id, get_string('addelement', 'customcert'),
array(), false);
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$mform->addElement('group', 'elementgroup', '', $group, '', false);
// Add option to delete this page if there is more than one page.
if ($this->numpages > 1) {
// Link to delete the page.
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$deletelink = new \moodle_url($editlink, $editlinkparams + array('action' => 'deletepage', 'aid' => $page->id));
$icon = $OUTPUT->pix_icon('t/delete', get_string('deletecertpage', 'customcert'));
$deletepagehtml = \html_writer::link($deletelink, $icon . get_string('deletecertpage', 'customcert'));
$mform->addElement('html', \html_writer::tag('div', $deletepagehtml, array('class' => 'deletebutton')));
}
}
}