ModelForms and admin.autodiscover

Hello, I am using Modeltranslation in a custom project which involves a custom admin backend (not django default), the site has 2 languages and since I use django crispy forms I opted for a solution for custom tabbed forms one for the english entries (default fields, as they update the _en fields) and one tab for the translated fields. Initially I had my form declared in forms.py the following way:

class ZadminPagesCreateForm(forms.ModelForm):
    class Meta:
        model = PagesContent
        fields = ['title','title_el','slug', 'categories',
        'status', 'flag_display_onmenu', 'body',
        'featured_image', 'enable_seo',
        'seo_title','seo_keywords','seo_description']

    def __init__(self, *args, **kwargs):
        super(ZadminPagesCreateForm, self).__init__(*args, **kwargs)
        print self.fields
        self.helper = FormHelper(self)
        self.helper.layout = Layout(
            TabHolder(
                Tab(_('English'),
                    Field('title', placeholder='title', css_class='sluggable'),
                    Field('slug', readonly='readonly', placeholder='slug is auto created'),
                    StrictButton(_('Edit Slug'), name="edit_slug", value="edit_slug", css_id="edit_slug", css_class="btn btn-default"),
                    Field('categories', css_class='input-sm zen_select'),
                    Field('status', css_class='input-sm'),
                    Field('flag_display_onmenu',),
                    Field('body', id="texteditor"),
                    'featured_image',
                    Field('enable_seo', css_class='toggle-seo'),
                    Fieldset(
                        _('SEO Options'),
                        Field('seo_title'),
                        Field('seo_keywords'),
                        Field('seo_description'),
                        css_id='seo_fieldset',
                    ),
                    FormActions(
                        Submit('save', _('Save')),
                        Button('cancel', _('Cancel'))
                    ),
                ),
                Tab(_('Greek'),
                    Field('title_el', placeholder=_('Greek Title')),
                    Field('body_el', id="texteditor"),
                ),
            )
        )

But I experienced problems:

django.core.exceptions.FieldError: Unknown field(s) (title_el) specified for PagesContent

I managed to find out that I need admin.autodiscover in my urls.py in order for the translation fields to appear. Is there a way around this?

[zlorf]

Isn’t the problem the fact that you missed 'body_el' in fields?

If not: admin.autodiscover is rather weird way of solving this. All it does is importing modeltranslation.admin, where are some classed defined. And it import modeltranslation.models. Ensure modeltranslation is listed in INSTALLED_APPS and if yes, try to change its order.

Also, see #243 (looks similar) - if ModelForm import model before translation registration, it will see old model version. You need to ensure that modeltranslation is executed at the beggining.

[zlorf]

Great to know! I hadn’t heard of explicit setup and it seems to be the solution for debug toolbar vs modeltranslation issues.