function no_submit_button_pressed()
{
global $CFG;
$data = $this->_form->exportValues();
if (isset($data['deletelogo']) && !empty($data['id']) && !empty($data['logofile'])) {
/// If delete logo was pressed...
$logo = $CFG->dataroot . '/' . $data['id'] . '/' . $data['logofile'];
if (unlink($logo)) {
set_field('course_config_fn', 'value', '', 'courseid', $data['id'], 'variable', 'logo');
$this->_customdata['course']->logo = '';
$link = get_string('notusinglogo', 'format_fn');
$dbgrp = $this->_form->getElement('dbgrp');
$elements = $dbgrp->getElements();
foreach (array_keys($elements) as $key) {
if ('dbuttont' == $dbgrp->getElementName($key)) {
$element =& $elements[$key];
$element->setValue($link);
break;
}
}
}
}
return parent::no_submit_button_pressed();
}
