Extend magento translation system
This module solves some major problems with Magento2 translation system.
First of all it solves the problem of cached JS-Translation files: Magento uses a cacheable json file for translations on forms.
These translations are stored in browser application cache:
On the one hand this cache follows the idea to push translations to client only a few pageloads - on the other hand this behavior can produce difficulties for development. The system uses mage-translation-file-version to determine the need for refreshing the cache.
If you want to change a translation in a js-active form in magento2 sometimes you have to:
This process is acceptable if you just want to change one single translation, and your are aware of all these steps. Otherwise you have to debug all these steps
Secondly - although you have managed to go through all your steps to translate your magento2 store to another locale - you have to search for each translation key.
Third - the structure of Magento2 language packages is a real disadvantage: A language pack does only contain a unordered list of translations in a csv.
This csv is really useful for agency translations and customizations of bought modules by external devs, cause its only one file - but there is a catch:
If you have to define module scoped translations, for example for two translations with the same key, but different translations its impossible.
Magento writes about this topic:
Language packages that contain a entire dictionary in one directory. You can distribute this language package as a standalone component (similar to modules and themes). Interestingly, it violates Magento’s modularity principles on purpose; that is, so that a system integrator can translations variations provided by extensions.
But what to do, if i need both: module structured translations AND one language pack for each locale?
This module enables the frontend-developer to set a cookie, which:
The language pack load procedure is enhanced backward compatible. It will load existing and enhanced language packs.
Create a new language pack as documented here:
Then create a subfolder for each vendor scope you want to override e.g. magento, youragency ...
Create a folder called i18n in it and then a file called like the locale you want to override.
In this csv file you can translate all values as in magento2 default:
Remove,"Entfernen" Cancel,"Abbrechen" "Manage Shopping Cart","Warenkorb bearbeiten" "Create Order","Neue Bestellung" Back,"Zurück" "Add Products","Artikel hinzufügen" "Update Items and Qty's","Aktualisieren" "Are you sure you want to clear your shopping cart?","Sind Sie sicher, dass sie alle Artikel aus dem Warenkorb entfernen möchten?" "Clear the shopping cart.","Warenkorb leeren." "Add Selected Product(s) to Shopping Cart","Ausgewählte Artikel in den Warenkorb legen" "Shopping Cart for %1 in %2","Shopping Cart for %1 in %2" "Choose products to add to shopping cart.","Artikel auswählen, um sie in den Warenkorb zu legen." Product,Produkt
This module will sort the order of defined modules according to the module dependency list, read its content and will add it to the result set.
The current controller scope is module-checkout.
Then all translations are loaded first module-catalog and then as last module: module-checkout, because its the current scope. Result: "Jederzeit" is displayed.
Just do this simple steps:
The result should look like this:
All translations used in blocks are enhanced by brackets  and contain key and translation value if given.
No dependencies to third party modules or services.