A module created a translation file in app/locale/en_US/preorder.csv.
I copied this file to app/locale/de_DE/preorder.csv but when I use $this->__("xxx") in the said module and have "xxx","yyy" in the preorder.csv file in de_DE it does not get translated. When I put "xxx","yyy" in Mage_Customer.csv in the same de_DE directory it gets translated.
So my question is, do I have to register new csv translation files somewhere? I thought all csv files in this directory will be taken.
Edit: When I rename the file like the modules: Webkul_Preorder.csv name then it works. SO magento does not take all CSV files in app/locale?
$this. See http://magento.stackexchange.com/questions/33125/why-do-classes-use-a-helper-for-translation-instead-of-this – MagePal Extensions Jul 22 '15 at 16:59