Implements hook_enable().
function translation_entity_enable() {
// Translation works when at least two languages are enabled.
if (count(language_list()) < 2) {
$t_args = array(
'!language_url' => url('admin/config/regional/language'),
);
$message = t('Be sure to <a href="!language_url">enable at least two languages</a> to translate content.', $t_args);
drupal_set_message($message, 'warning');
}
// Point the user to the content translation settings.
$t_args = array(
'!settings_url' => url('admin/config/regional/content-language'),
);
$message = t('<a href="!settings_url">Enable translation</a> for <em>content types</em>, <em>taxonomy vocabularies</em>, <em>accounts</em>, or any other element you wish to translate.', $t_args);
drupal_set_message($message, 'warning');
}