Create form class to enter all languages at once.

[django-parler]

Create form class to enter all languages at once.

[vdboor]

Well, the models can handle it for sure. I'm just not sure if that can be done in the admin but it's worth a try! Would be really cool to have! :-)

I've wanted this to work in standard Django forms for some time now, because the parler-oscar integration does suffer from exposing just one language in the form. Having a form class that can generate fields for all languages would be a first good start to implement this!

[svezina]

+1
Having only one language at once with the form class can cause problems. It would be nice if the form class automatically showed all languages. "Description (EN), Description (FR), etc.".

I find myself programming manual forms everytime there's a multilingual component.

[svezina]

Here is how I do my forms it in the meantime.
This is an example where "name" and "description" are multilingual fields.

from parler.forms import TranslatableModelForm, TranslatedField
from django.utils.translation import gettext_lazy as _
from django.conf import settings

class MyForm(TranslatableModelForm):

    #add all multilingual fields to the form
    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)
        for lang_code, lang_name in settings.LANGUAGES:
            #I have no clue why this doesn't work without the try/except.
            try:
                self.instance.set_current_language(lang_code)
                self.fields["name_"+lang_code] = forms.CharField(label=_("Name ")+" ("+lang_code+")", max_length=100, required=True, initial=self.instance.name)
            except:
                self.instance.set_current_language(lang_code)

    #Save all multilingual fields
    def save(self, commit=True):
        instance = super(MyForm, self).save(commit=False)
        instance.save()
        for lang_code, lang_name in settings.LANGUAGES:
            instance.set_current_language(lang_code)
            instance.name = self.cleaned_data['name_'+lang_code]
            instance.save()
        return instance

    class Meta:
        model = MyModel
        fields = '__all__'
        exclude = ("name", "description",) #exclude multilingual fields because they are dealt with above

[vstoykov]

@svezina what is the exception that you are catching? Probably by knowing what is the exception someone can understand why happens.

[slomo]

I think the issue here is getting values from the translated instance for the initial data. That will fail upon creation and if a field is not set yet in the model. At least that is what I have with django 1.8 and parler 1.6.4

mymodel does not have a translation for the current language!
MyModel ID #5, language=de (tried fallbacks en)
Attempted to read attribute title.