Translations tabs of Django parler not showing in the view - django

Question

I'm using django parler to translate my models. now i'm creating a custom admin Panel and i have a view for create and update of Contents. I'm using a class based view inherit from "View" for both create and update views so i can't use the TranslatableCreateView and TranslatableUpdateView. I saw in the codes of Django parler that using TranslatableModelFormMixin you can add translation support to the class-based views. I used this mixin but still i don't have access to the language tabs.
Here is Views.py:
class ContentCreateUpdateView(TranslatableModelFormMixin, TemplateResponseMixin, View):
module = None
model = None
obj = None
template_name = 'content-form.html'
def get_model(self, model_name):
if model_name in ['text', 'video', 'image', 'file']:
return apps.get_model(app_label='courses', model_name=model_name)
return None
def get_form(self, model, *args, **kwargs):
Form = modelform_factory(model, exclude=['owner',
'order',
'created',
'updated'])
return Form(*args, **kwargs)
def dispatch(self, request, module_id, model_name, id=None):
self.module = get_object_or_404(Module, id=module_id, course__owner=request.user)
self.model = self.get_model(model_name)
if id:
self.obj = get_object_or_404(self.model,
id=id,
owner=request.user)
return super().dispatch(request, module_id, model_name, id)
def get(self, request, module_id, model_name, id=None):
form = self.get_form(self.model, instance=self.obj,)
return self.render_to_response({'form': form, 'object': self.obj})
def post(self, request, module_id, model_name, id=None):
form = self.get_form(self.model, instance=self.obj, data=request.POST, files=request.FILES)
if form.is_valid():
obj = form.save(commit=False)
obj.owner = request.user
obj.save()
if not id:
# new content
Content.objects.create(module=self.module, item=obj)
return redirect('module_content_list', self.module.id)
return self.render_to_response({'form': form, 'object': self.obj})
Template:
{% extends '_base.html' %}
{% load crispy_forms_tags %}
{% load crispy_forms_filters %}
{% block content %}
<div class="col-md-12">
<!-- Horizontal Form -->
<div class="card card-primary">
<div class="card-header ">
{% if object %}
<h3 class="card-title mb-0 float-left"> Edit Content "{{ object.title }}"</h3>
{% else %}
<h3 class="card-title mb-0 float-left"> Add New Content</h3>
{% endif %}
</div>
<!-- /.card-header -->
<!-- form start -->
<div class="card-body">
<form method="post" enctype="multipart/form-data">
<div class="row">
<div class="col-12">
{% if language_tabs %}
<ul class="nav nav-tabs">
{% for url,name,code,status in language_tabs %}
{% if status == 'current' %}
<input type="hidden" class="language_button selected" name="{{ code }}"/>
<li class="nav-item">
<a class="current nav-link active"
aria-selected="true">{{ name }}</a>
</li>
{% else %}
<li class="nav-item">
<a class="{{ status }} nav-link"
href="{{ url }}"
aria-selected="false">{{ name }}</a>
</li>
{% endif %}
{% endfor %}
</ul>
{% endif %}
</div>
<div class="col-6">
{{ form }}
</div>
</div>
{% csrf_token %}
<div class="col-6">
<button class="btn btn-success">Save Content</button>
</div>
</form>
</div>
</div>
</div>
<!-- /.card -->
{% endblock %}
Here is the source code of django parler:
class TranslatableModelFormMixin(LanguageChoiceMixin):
"""
Mixin to add translation support to class based views.
For example, adding translation support to django-oscar::
from oscar.apps.dashboard.catalogue import views as oscar_views
from parler.views import TranslatableModelFormMixin
class ProductCreateUpdateView(TranslatableModelFormMixin, oscar_views.ProductCreateUpdateView):
pass
"""
def get_form_class(self):
"""
Return a ``TranslatableModelForm`` by default if no form_class is set.
"""
super_method = super().get_form_class
# no "__func__" on the class level function in python 3
default_method = getattr(
ModelFormMixin.get_form_class, "__func__", ModelFormMixin.get_form_class
)
if not (super_method.__func__ is default_method):
# Don't get in your way, if you've overwritten stuff.
return super_method()
else:
# Same logic as ModelFormMixin.get_form_class, but using the right form base class.
if self.form_class:
return self.form_class
else:
model = _get_view_model(self)
if self.fields:
fields = self.fields
return modelform_factory(model, form=TranslatableModelForm, fields=fields)
else:
return modelform_factory(model, form=TranslatableModelForm)
def get_form_kwargs(self):
"""
Pass the current language to the form.
"""
kwargs = super().get_form_kwargs()
# The TranslatableAdmin can set form.language_code, because the modeladmin always creates a fresh subclass.
# If that would be done here, the original globally defined form class would be updated.
kwargs["_current_language"] = self.get_form_language()
return kwargs
# Backwards compatibility
# Make sure overriding get_current_language() affects get_form_language() too.
def get_form_language(self):
return self.get_current_language()
The tabs should look like this:
But now it looks like this:
If someone have a similiar exprience, feel free to write your opinion

Answer 1

In the settings.py file find PARLER_LANGUAGES settings and change None to SITE_ID.
PARLER_LANGUAGES = {
1: (
{'code': 'en', }, # English
{'code': 'ru', }, # Russian
),
'default': {
'fallbacks': ['en'],
'hide_untranslated': False,
}
}