h5rdZddlmZmZddlmZddlmZmZddl m Z ddl m Z ddl mZddlmZdd lmZdd lmZdd lmZdd lmZdd lmZmZdZGddZGddZGddeZ GddZ!Gdde!Z"Gdde"ejFZ$Gdde"ejJZ&dZ'e!Z(y)a The views provide high-level utilities to integrate translation support into other projects. The following mixins are available: * :class:`ViewUrlMixin` - provide a ``get_view_url`` for the :ref:`{% get_translated_url %} ` template tag. * :class:`TranslatableSlugMixin` - enrich the :class:`~django.views.generic.detail.DetailView` to support translatable slugs. * :class:`LanguageChoiceMixin` - add ``?language=xx`` support to a view (e.g. for editing). * :class:`TranslatableModelFormMixin` - add support for translatable forms, e.g. for creating/updating objects. The following views are available: * :class:`TranslatableCreateView` - The :class:`~django.views.generic.edit.CreateView` with :class:`TranslatableModelFormMixin` support. * :class:`TranslatableUpdateView` - The :class:`~django.views.generic.edit.UpdateView` with :class:`TranslatableModelFormMixin` support. )ImproperlyConfiguredObjectDoesNotExist)modelform_factory)Http404HttpResponsePermanentRedirect)reverse) translation)generic)ModelFormMixin)TranslatableModelForm)TranslatableModelMixin)get_active_language_choices)switch_language)get_language_parameterget_language_tabs) ViewUrlMixinTranslatableSlugMixinLanguageChoiceMixinTranslatableModelFormMixinTranslatableCreateViewTranslatableUpdateViewceZdZdZdZdZy)ra Provide a ``view.get_view_url`` method in the template. This tells the template what the exact canonical URL should be of a view. The :ref:`{% get_translated_url %} ` template tag uses this to find the proper translated URL of the current page. Typically, setting the :attr:`view_url_name` just works:: class ArticleListView(ViewUrlMixin, ListView): view_url_name = 'article:list' The :func:`get_view_url` will use the :attr:`view_url_name` together with ``view.args`` and ``view.kwargs`` construct the URL. When some arguments are translated (e.g. a slug), the :func:`get_view_url` can be overwritten to generate the proper URL:: from parler.views import ViewUrlMixin, TranslatableUpdateView from parler.utils.context import switch_language class ArticleEditView(ViewUrlMixin, TranslatableUpdateView): view_url_name = 'article:edit' def get_view_url(self): with switch_language(self.object, get_language()): return reverse(self.view_url_name, kwargs={'slug': self.object.slug}) Nc|js"td|jjt |j|j |j S)a This method is used by the ``get_translated_url`` template tag. By default, it uses the :attr:`view_url_name` to generate an URL. When the URL ``args`` and ``kwargs`` are translatable, override this function instead to generate the proper URL. z%Missing `view_url_name` attribute on )argskwargs) view_url_namer __class____name__rrrselfs ??r#c t||g|i|S#t$rh}t|j|j 5t |jjcdddcYd}~S#1swYnxYwYd}~yd}~wwxYwN)superdispatchFallbackLanguageResolvedrobjectcorrect_languagerget_absolute_url)r requestrrers r!r4zTranslatableSlugMixin.dispatchs} R7#G=d=f= =' R 1+=+=> R4QXX5N5N5PQ R R R R Rs1 B B#A1" B+B1A: 6BBc~||j}|j|j}|j}d}d}g}|D]F} |j |}|j |fi|j |j}n|fdjdj|} tjdd|jjj iz} t#| | z|r$|D]} |j%| st'|| |S#t$rd}|j|YwxYw) z; Fetch the object using a translated slug. NF)r+Tz, tried languages: {}z, z,No %(verbose_name)s found matching the query verbose_name) get_querysetrslug_url_kwargr0r, translatedlanguagegetrappendformatjoinr gettextmodel_metar<rhas_translationr5) r querysetr+choicesobjusing_fallback prev_choices lang_choicefilters tried_msg error_message prev_choices r! get_objectz TranslatableSlugMixin.get_objectse  ((*H{{4../++- " K 5545@)h))+AAJJ;W[[]   ;/66tyy7IJI'//0^_ 4 4 A AcM-)34 4  , E &&{333 DD  E  7& 1!%##K0 1sADD<;D<r2) rr$r%r&r,r.r0r4rS __classcell__rs@r!rr_s#$- * @ R.r#rceZdZdZdZy)r5z An object was resolved in the fallback language, while it could be in the normal language. This exception is used internally to control code flow. c ||_||_yr2)r6r7)r r6r7s r!__init__z!FallbackLanguageResolved.__init__s 0r#N)rr$r%r&rXr'r#r!r5r5s  1r#r5cLeZdZdZdZd fd ZdZd dZdZfdZ dZ xZ S) rz Mixin to add language selection support to class based views, particularly create and update views. It adds support for the ``?language=..`` parameter in the query string, and tabs in the context. r@ct||}t|tr!|j |j d|S)z? Assign the language for the retrieved object. T) initialize)r3rS isinstancer set_current_languager.)r rIr6rs r!rSzLanguageChoiceMixin.get_objects@#H- f4 5  ' '(9(9(; ' M r#cnt|j|j|jtS)zF Get the language parameter from the current request. )r6)default)rr9query_language_keyget_default_languager6rs r!r.z LanguageChoiceMixin.get_languages1& LL$114;T;T\b;T;c  r#cy)z Return the default language to use, if no language parameter is given. By default, it uses the default parler-language. Nr')r r6s r!raz(LanguageChoiceMixin.get_default_languages r#cn|j|jjS|jS)z Return the current language for the currently displayed object fields. This reads ``self.object.get_current_language()`` and falls back to :func:`get_language`. )r6get_current_languager.rs r!rdz(LanguageChoiceMixin.get_current_languages0 ;; ";;335 5$$& &r#c Lt|di|}|j|d<|S)N language_tabsr')r3get_context_datar)r rcontextrs r!rgz$LanguageChoiceMixin.get_context_datas-'*4V4#'#9#9#; r#c|j}|jr$t|jj}ng}t |j ||S)z6 Determine the language tabs to show. )rdr6listget_available_languagesrr9)r current_languageavailable_languagess r!rz%LanguageChoiceMixin.get_language_tabssM 446 ;;"&t{{'J'J'L"M "$  /?ATUUr#r2) rr$r%r&r`rSr.rardrgrrTrUs@r!rrs/ $ ' Vr#rc2eZdZdZfdZfdZdZxZS)ra~ Mixin to add translation support to class based views. For example, adding translation support to django-oscar:: from oscar.apps.dashboard.catalogue import views as oscar_views from parler.views import TranslatableModelFormMixin class ProductCreateUpdateView(TranslatableModelFormMixin, oscar_views.ProductCreateUpdateView): pass cPt|}ttjdtj}|j|ur|S|j r |j St |}|jr|j}t|t|St|tS)zX Return a ``TranslatableModelForm`` by default if no form_class is set. __func__)formfields)rq) r3get_form_classgetattrr rp form_class_get_view_modelrrrr )r super_methoddefault_methodrFrrrs r!rsz)TranslatableModelFormMixin.get_form_classsw-   ) ):~7T7T %%7> !&'-;;![[F,U9NW]^^,U9NOOr#cJt|}|j|d<|S)z8 Pass the current language to the form. _current_language)r3get_form_kwargsget_form_language)r rrs r!r{z*TranslatableModelFormMixin.get_form_kwargs*s-(*'+&<&<&>"# r#c"|jSr2)rdrs r!r|z,TranslatableModelFormMixin.get_form_language6s((**r#)rr$r%r&rsr{r|rTrUs@r!rrs P0+r#rceZdZdZy)rz Create view that supports translated models. This is a mix of the :class:`TranslatableModelFormMixin` and Django's :class:`~django.views.generic.edit.CreateView`. Nrr$r%r&r'r#r!rr;   r#rceZdZdZy)rz Update view that supports translated models. This is a mix of the :class:`TranslatableModelFormMixin` and Django's :class:`~django.views.generic.edit.UpdateView`. Nrr'r#r!rrErr#rc|j |jSt|dr"|j|jjS|j jS)Nr6)rFhasattrr6rr=rs r!rvrvOsP zzzz x T[[%<{{$$$  "(((r#N))r&django.core.exceptionsrrdjango.forms.modelsr django.httprr django.urlsr django.utilsr django.viewsr django.views.generic.editr parler.formsr parler.modelsr parler.utilsrparler.utils.contextrparler.utils.viewsrr__all__rr Exceptionr5rr CreateViewr UpdateViewrrvTranslatableSingleObjectMixinr'r#r!rsL1>$ 4.040H 4O4On[[|1y1:V:Vz2+!42+l 79K9K  79K9K  )!4r#