from django.views.generic import FormView
from django.shortcuts import  render_to_response, get_object_or_404
from django.http import HttpResponseRedirect
from django.conf import settings

class AdminView(FormView):
    obj = None

    def set_obj(self):
        url = self.kwargs.get('url')
        if url:
            obj = get_object_or_404(self.model, url=url)
            self.obj = obj
            return obj
        slug = self.kwargs.get('slug')
        if slug:
            obj = get_object_or_404(self.model, slug=slug)
            self.obj = obj
            return obj
        self.obj = None
        return None

    def get_context_data(self, **kwargs):
        context = super(AdminView, self).get_context_data(**kwargs)
        self.set_obj()
        context['object'] = self.obj
        context['languages'] = settings.LANGUAGES
        return context

    def form_valid(self, form):
        self.set_obj()
        form.save(obj=self.obj)
        return HttpResponseRedirect(self.success_url)
    # example get_form
    """
    def get_form(self, form_class):
        if self.request.POST:
            return super(AdminView, self).get_form(form_class)
        self.set_obj()
        if self.obj:
            obj = self.obj
            data = {}
            data['theme'] = [item.id for item in article.theme.all()]
            data['exposition'] = article.exposition
            data['conference'] = article.conference
            a = ','.join(['%s:%s'%(item.id, item.name) for item in article.tag.all()])

            data['tag'] = ','.join(['%s:%s'%(item.id, item.name) for item in article.tag.all()])
            for code, name in settings.LANGUAGES:
                obj = Article._meta.translations_model.objects.get(language_code = code,master__id=getattr(article, 'id')) #access to translated fields
                data['main_title_%s' % code] = obj.main_title
                data['preview_%s' % code] = obj.preview
                data['description_%s' % code] = obj.description
                data['title_%s' % code] = obj.title
                data['keywords_%s' % code] = obj.keywords
                data['descriptions_%s' % code] = obj.descriptions
            form = form_class(data)
            #form.fields['tag'].widget.attrs['data-init-text'] = [item.name for item in article.tag.all()]
            return form_class(data)
        else:
            return form_class()
    """