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<?php
/**
* A simple extension to dropdown field, pre-configured to list countries.
* It will default to the country of the current visitor.
*
* @package forms
* @subpackage fields-relational
*/
class CountryDropdownField extends DropdownField {
/**
* Should we default the dropdown to the region determined from the user's locale?
* @var bool
*/
static $default_to_locale = true;
/**
* The region code to default to if default_to_locale is set to false, or we can't determine a region from a locale
* @var string
*/
static $default_country = 'NZ';
protected $extraClasses = array('dropdown');
/**
* Get the locale of the Member, or if we're not logged in or don't have a locale, use the default one
* @return string
*/
protected function locale() {
if (($member = Member::currentUser()) && $member->Locale) return $member->Locale;
return i18n::get_locale();
}
public function __construct($name, $title = null, $source = null, $value = "", $form=null) {
if(!is_array($source)) {
// Get a list of countries from Zend
$source = Zend_Locale::getTranslationList('territory', $this->locale(), 2);
// We want them ordered by display name, not country code
// PHP 5.3 has an extension that sorts UTF-8 strings correctly
if (class_exists('Collator') && ($collator = Collator::create($this->locale()))) {
$collator->asort($source);
}
// Otherwise just put up with them being weirdly ordered for now
else {
asort($source);
}
// We don't want "unknown country" as an option
unset($source['ZZ']);
}
parent::__construct($name, ($title===null) ? $name : $title, $source, $value, $form);
}
public function Field($properties = array()) {
$source = $this->getSource();
if (!$this->value || !isset($source[$this->value])) {
if ($this->config()->get('default_to_locale') && $this->locale()) {
$locale = new Zend_Locale();
$locale->setLocale($this->locale());
$this->value = $locale->getRegion();
}
}
if (!$this->value || !isset($source[$this->value])) {
$this->value = $this->config()->get('default_country');
}
return parent::Field();
}
}
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