How To Properly Structure Localized Content In Cloud Firestore?

I'm thinking about migrating to Cloud Firestore from realtime ratabase and wondering how I can properly setup the datastructure for my localized content. This is how it was structu

Solution 1:

There is a simple way for structuring such data in Cloud Firestore. So a possible schema might be:

Firestore-root
   |
   --- articles (collection)
        |
        --- articleId (document)
        |     |
        |     --- language: "en-US"
        |     |
        |     --- //other article properties
        |
        --- articleId (document)
              |
              --- language: "de-DE"
              |
              --- //other article properties

Using this database schema, in Android, you can simply:

• Get all articles regardless of the language using just a CollectionReference:

  FirebaseFirestorerootRef= FirebaseFirestore.getInstance();
  CollectionReferencearticlesRef= rootRef.collection("articles");
  articlesRef.get().addOnCompleteListener(/* ... */);
  

• Get all articles that correpond to a single language using a Query:

  FirebaseFirestorerootRef= FirebaseFirestore.getInstance();
  Queryquery= rootRef.collection("articles").whereEqualTo("language", "en-US");
  query.get().addOnCompleteListener(/* ... */);