Hi,
I am using Moodle 2.5, and i want to change the MultiDrop Down Menu, to allow Multiple Selection
during the Registration Process, under User Profile Fields,
http://docs.moodle.org/dev/User_profile_fields
–
When being under the core PHP files on it, these are the files i can see:
define.class.php
field.class.php
<?php
class profile_field_menu extends profile_field_base {
var $options;
var $datakey;
/**
* Constructor method.
* Pulls out the options for the menu from the database and sets the
* the corresponding key for the data if it exists
*/
function profile_field_menu($fieldid=0, $userid=0) {
//first call parent constructor
$this->profile_field_base($fieldid, $userid);
/// Param 1 for menu type is the options
$options = explode("\
", $this->field->param1);
$this->options = array();
if ($this->field->required){
$this->options[''] = get_string('choose').'...';
}
foreach($options as $key => $option) {
$this->options[$key] = format_string($option);//multilang formatting
}
/// Set the data key
if ($this->data !== NULL) {
$this->datakey = (int)array_search($this->data, $this->options);
}
}
/**
* Create the code snippet for this field instance
* Overwrites the base class method
* @param object moodleform instance
*/
function edit_field_add($mform) {
$mform->addElement('select', $this->inputname, format_string($this->field->name), $this->options);
}
/**
* Set the default value for this field instance
* Overwrites the base class method
*/
function edit_field_set_default($mform) {
if (FALSE !==array_search($this->field->defaultdata, $this->options)){
$defaultkey = (int)array_search($this->field->defaultdata, $this->options);
} else {
$defaultkey = '';
}
$mform->setDefault($this->inputname, $defaultkey);
}
/**
* The data from the form returns the key. This should be converted to the
* respective option string to be saved in database
* Overwrites base class accessor method
* @param mixed $data - the key returned from the select input in the form
* @param stdClass $datarecord The object that will be used to save the record
*/
function edit_save_data_preprocess($data, $datarecord) {
return isset($this->options[$data]) ? $this->options[$data] : NULL;
}
/**
* When passing the user object to the form class for the edit profile page
* we should load the key for the saved data
* Overwrites the base class method
* @param object user object
*/
function edit_load_user_data($user) {
$user->{$this->inputname} = $this->datakey;
}
/**
* HardFreeze the field if locked.
* @param object instance of the moodleform class
*/
function edit_field_set_locked($mform) {
if (!$mform->elementExists($this->inputname)) {
return;
}
if ($this->is_locked() and !has_capability('moodle/user:update', context_system::instance())) {
$mform->hardFreeze($this->inputname);
$mform->setConstant($this->inputname, $this->datakey);
}
}
/**
* Convert external data (csv file) from value to key for processing later
* by edit_save_data_preprocess
*
* @param string $value one of the values in menu options.
* @return int options key for the menu
*/
function convert_external_data($value) {
$retval = array_search($value, $this->options);
// If value is not found in options then return null, so that it can be handled
// later by edit_save_data_preprocess
if ($retval === false) {
$retval = null;
}
return $retval;
}
}