|
public getParentLocaleOf ( |
||
| $locale | The Locale to search parent for | |
| return | mixed | Existing Locale instance or NULL on failure |
public function getParentLocaleOf(Locale $locale)
{
$localeIdentifier = (string) $locale;
if (!isset($this->localeCollection[$localeIdentifier])) {
return null;
}
if (isset($this->localeParentCollection[$localeIdentifier])) {
return $this->localeParentCollection[$localeIdentifier];
}
$parentLocaleIdentifier = $localeIdentifier;
do {
// Remove the last (most specific) part of the locale tag
$parentLocaleIdentifier = substr($parentLocaleIdentifier, 0, (int) strrpos($parentLocaleIdentifier, '_'));
if (isset($this->localeCollection[$parentLocaleIdentifier])) {
return $this->localeParentCollection[$localeIdentifier] = $this->localeCollection[$parentLocaleIdentifier];
}
} while (strrpos($parentLocaleIdentifier, '_') !== false);
return null;
} /**
* @test
*/
public function returnsNullWhenNoParentLocaleCouldBeFound()
{
foreach ($this->locales as $locale) {
$this->localeCollection->addLocale($locale);
}
$this->assertNull($this->localeCollection->getParentLocaleOf(new I18n\Locale('sv')));
$this->assertNull($this->localeCollection->getParentLocaleOf($this->locales[0]));
}
