moodle/mod/feedback/item/captcha/lib.php
2010-04-23 21:25:27 +00:00

279 lines
9.2 KiB
PHP

<?php
defined('MOODLE_INTERNAL') OR die('not allowed');
require_once($CFG->dirroot.'/mod/feedback/item/feedback_item_class.php');
class feedback_item_captcha extends feedback_item_base {
var $type = "captcha";
var $commonparams;
var $item_form;
var $item;
function init() {
}
function build_editform($item, $feedback, $cm) {
global $DB, $CFG;
require_once('captcha_form.php');
//get the lastposition number of the feedback_items
$position = $item->position;
$lastposition = $DB->count_records('feedback_item', array('feedback'=>$feedback->id));
if($position == -1){
$i_formselect_last = $lastposition + 1;
$i_formselect_value = $lastposition + 1;
$item->position = $lastposition + 1;
}else {
$i_formselect_last = $lastposition;
$i_formselect_value = $item->position;
}
//the elements for position dropdownlist
$positionlist = array_slice(range(0,$i_formselect_last),1,$i_formselect_last,true);
$item->presentation = empty($item->presentation) ? 3 : $item->presentation;
$item->required = 1;
$commonparams = array('cmid'=>$cm->id,
'id'=>isset($item->id) ? $item->id : NULL,
'typ'=>$item->typ,
'feedback'=>$feedback->id);
//build the form
$this->item_form = new feedback_captcha_form('edit_item.php', array('item'=>$item, 'common'=>$commonparams, 'positionlist'=>$positionlist, 'position'=>$position));
}
//this function only can used after the call of build_editform()
function show_editform() {
$this->item_form->display();
}
function is_cancelled() {
return $this->item_form->is_cancelled();
}
function get_data() {
if($this->item = $this->item_form->get_data()) {
return true;
}
return false;
}
function save_item() {
global $DB;
if(!$item = $this->item_form->get_data()) {
return false;
}
if(!$item->id) {
$item->id = $DB->insert_record('feedback_item', $item);
}else {
$DB->update_record('feedback_item', $item);
}
return $DB->get_record('feedback_item', array('id'=>$item->id));
}
//liefert eine Struktur ->name, ->data = array(mit Antworten)
function get_analysed($item, $groupid = false, $courseid = false) {
return null;
}
function get_printval($item, $value) {
return '';
}
function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
return $itemnr;
}
function excelprint_item(&$worksheet, $rowOffset, $item, $groupid, $courseid = false) {
return $rowOffset;
}
/**
* print the item at the edit-page of feedback
*
* @global object
* @param object $item
* @return void
*/
function print_item_preview($item) {
global $SESSION, $CFG, $DB, $OUTPUT;
$align = right_to_left() ? 'right' : 'left';
$presentation = $item->presentation;
$SESSION->feedback->item->captcha->charcount = $presentation;
$cmid = 0;
$feedbackid = $item->feedback;
if($feedbackid > 0) {
$feedback = $DB->get_record('feedback', array('id'=>$feedbackid));
if($cm = get_coursemodule_from_instance("feedback", $feedback->id, $feedback->course)) {
$cmid = $cm->id;
}
}
if(isset($SESSION->feedback->item->captcha->checked)) {
$checked = $SESSION->feedback->item->captcha->checked == true;
unset($SESSION->feedback->item->captcha->checked);
}else {
$checked = false;
}
$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
?>
<td valign="top" align="<?php echo $align;?>">
<?php
echo '('.$item->label.') ';
echo format_text($item->name . $requiredmark, true, false, false);
$imglink = new moodle_url('/mod/feedback/item/captcha/print_captcha.php', array('id'=>$cmid));
?>
<img alt="<?php echo $this->type;?>" src="<?php echo $imglink->out();?>" />
</td>
<td valign="top" align="<?php echo $align;?>">
<?php
?>
<input type="text" name="<?php echo $item->typ . '_' . $item->id;?>"
size="<?php echo $presentation;?>"
maxlength="<?php echo $presentation;?>"
value="" />
</td>
<?php
}
/**
* print the item at the complete-page of feedback
*
* @global object
* @param object $item
* @param string $value
* @param bool $highlightrequire
* @return void
*/
function print_item_complete($item, $value = '', $highlightrequire = false) {
global $SESSION, $CFG, $DB, $OUTPUT;
$align = right_to_left() ? 'right' : 'left';
$presentation = $item->presentation;
$SESSION->feedback->item->captcha->charcount = $presentation;
$cmid = 0;
$feedbackid = $item->feedback;
if($feedbackid > 0) {
$feedback = $DB->get_record('feedback', array('id'=>$feedbackid));
if($cm = get_coursemodule_from_instance("feedback", $feedback->id, $feedback->course)) {
$cmid = $cm->id;
}
}
if(isset($SESSION->feedback->item->captcha->checked)) {
$checked = $SESSION->feedback->item->captcha->checked == true;
unset($SESSION->feedback->item->captcha->checked);
}else {
$checked = false;
}
//check if an false value even the value is not required
if(!$item->required AND $value != '' AND $SESSION->feedback->item->captcha->checkchar != $value) {
$falsevalue = true;
}else {
$falsevalue = false;
}
if(($highlightrequire AND $item->required AND !$checked) OR $falsevalue) {
$highlight = 'bgcolor="#FFAAAA" class="missingrequire"';
}else {
$highlight = '';
}
$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
?>
<td <?php echo $highlight;?> valign="top" align="<?php echo $align;?>">
<?php
echo format_text($item->name . $requiredmark, true, false, false);
$imglink = new moodle_url('/mod/feedback/item/captcha/print_captcha.php', array('id'=>$cmid));
?>
<img alt="<?php echo $this->type;?>" src="<?php echo $imglink->out();?>" />
</td>
<td valign="top" align="<?php echo $align;?>">
<input type="text" name="<?php echo $item->typ . '_' . $item->id;?>"
size="<?php echo $presentation;?>"
maxlength="<?php echo $presentation;?>"
value="" />
</td>
<?php
}
/**
* print the item at the complete-page of feedback
*
* @global object
* @param object $item
* @param string $value
* @return void
*/
function print_item_show_value($item, $value = '') {
global $SESSION, $CFG, $DB, $OUTPUT;
$align = right_to_left() ? 'right' : 'left';
$presentation = $item->presentation;
$SESSION->feedback->item->captcha->charcount = $presentation;
$cmid = 0;
if(isset($SESSION->feedback->item->captcha->checked)) {
$checked = $SESSION->feedback->item->captcha->checked == true;
unset($SESSION->feedback->item->captcha->checked);
}else {
$checked = false;
}
$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
?>
<td valign="top" align="<?php echo $align;?>">
<?php
echo '('.$item->label.') ';
echo format_text($item->name . $requiredmark, true, false, false);
$imglink = new moodle_url('/mod/feedback/item/captcha/print_captcha.php', array('id'=>$cmid));
?>
<img alt="<?php echo $this->type;?>" src="<?php echo $imglink->out();?>" />
</td>
<td valign="top" align="<?php echo $align;?>">
<?php
echo $OUTPUT->box_start('generalbox boxalign'.$align);
echo $value ? $value : '&nbsp;';
echo $OUTPUT->box_end();
?>
</td>
<?php
}
function check_value($value, $item) {
global $SESSION;
//if the item is not required, so the check is true if no value is given
if((!isset($value) OR $value == '') AND $item->required != 1) return true;
if($SESSION->feedback->item->captcha->checkchar == $value) {
$SESSION->feedback->item->captcha->checked = true;
return true;
}
return false;
}
function create_value($data) {
$data = clean_text($data);
return $data;
}
function get_presentation($data) {
return $data->count_of_nums;
}
function get_hasvalue() {
return 1;
}
}
?>