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