Each GettextMessageSource instance represents the message translations
for a single domain. And each message category represents a message context
in Gettext. Translated messages are stored as either a MO or PO file,
depending on the [[useMoFile]] property value.
All translations are saved under the [[basePath]] directory.
Translations in one language are kept as MO or PO files under an individual
subdirectory whose name is the language ID. The file name is specified via
[[catalog]] property, which defaults to 'messages'.
/**
* @inheritdoc
*/
protected function loadMessages($category, $language)
{
if (!isset($this->scopeCache[$category])) {
if (!is_null($this->scope)) {
if (strripos($category, $this->scope) === FALSE) {
throw new \Exception("Invalid translation category {$category}, not in scope: " . $this->scope);
}
$this->scopeCache[$category] = substr($category, strlen($this->scope));
} else {
$this->scopeCache[$category] = $category;
}
}
return parent::loadMessages($this->scopeCache[$category], $language);
}
