django-modeltrans | Translate Django model fields in a PostgreSQL | Internationalization library

I'm trying to translate some models in an existing project, and I'm learning how to do that using the modeltranslate extension. To experiment, I've added Spanish as an additional language to English and set English as a default in the settings.py:

I would like to use the modeltranslation package in a Django application that uses the flatpages app.

I installed both, followed the model translation docs, and created a translation.py file, which I put in the main app (where all the global stuff lies), as I can't put it directly in the flat pages app (Django code is a requirement and is not committed to VCS).

I can not figure out how to convert the name of the object on the fly

I would like to add option to mobile app to change language. Im using django on backend and RN as mobile. So I installed django-modeltranslation and added my model I want to translate. On mobile I display available languages. When user clicks on specific language I would like to get translated data. I have huge problem to create logic how to do it. I'm not asking about code just some hints and idea

EDIT: For example: I added translation from django-modeltranslation to my model (i.e GameTask with field title, description etc). In my settings.py I have declared languages ('en','de','uk',etc) and added translations in database (for every field of GameTask, I added title(en), title(de) etc). When I change language in settings.py, values on mobile are changing too (so working as intended). So im not storing any translated text in app files, just in database (except of static errors and informations). Now I just want to send info from mobile with chosen language and activate this language on backend to return content in specific language

I am developing a django multilingual app and using django-modeltranslation to translate the models. It works fine except one thing: when translation is not available in a specific language, it still shows the objects (let's say posts). I have some posts that are available in tajik while not available in russian, and vice versa.

My goal is to disable showing the posts in the language which I do not have translation. May be by showing 404 or any other way, but it should not show the posts at all, not partially

Here are my settings: settings.py

I've translated my Model fields with django-modeltranslation and implemented search using django-elasticsearch-dsl.

Problem: django-modeltranslation creates translation fields in DB, and not in my Models, and search is working only for fields created by Model. As django-elasticsearch-dsl is checking Models to rebuild search index.

When I try:

python3 manage.py search_index --rebuild

I get the error:

When I'm trying to remove a row, the formset send me the following error [{}, {}, {}, {'id': ['This field is required']}]. If I change the following parameter can_delete=True inside the modelformset_factory, I can delete object but rows stays display even after I pressed the remove button. I tried to add {% if form.instance.pk %}{{ form.DELETE }}{% endif %} in the template, it didn't change anything.

I am using django 2.2 and django-dynamic-formset, the country_fr/en come from modeltranslation.

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