Can't use original widgets of the Form

[damianoporta]

Hello,
I have a simple form.

class MyForm(Form):
    def __init__(self, *args, **kwargs):
        # custom form logic
        ....
     my_field = forms.DateField(
         label=_("From"),                
         widget=forms.TextInput(attrs={'class': 'form-control start-date', 'placeholder': _('From')}),   
         required=False     
     )

then i am trying to implement it setting the form attribute.

class MyFilterset(FilterSet):
    class Meta:
        model = MyModel
        fields = [...]
        form = MyForm

the problem is when i try to set the field_name of an input inside the formset, doing:

class MyFilterset(FilterSet):
    my_field = CharFilter(field_name='foo')
    class Meta:
        model = MyModel
        fields = ['my_field', ....]
        form = MyForm

django-filter overrides the widget of the input i have in the original form (MyForm).

Is there a wat to configure the field_name without overriding the styles of the form?
Thanks

[damianoporta]

Hello @carltongibson
I finally figure it out, the following code is working correctly:

class StrategyFilter(django_filters.FilterSet):

    start = django_filters.DateFilter(
        field_name='trademonthlystat__last_date', 
        lookup_expr='gt',         
    )
    
    end = django_filters.DateFilter(
        field_name='trademonthlystat__last_date', 
        lookup_expr='lt',        
    )
    
    symbol = django_filters.NumberFilter(
        field_name='symbol_id',
        lookup_expr='exact',              
    )

    tf = django_filters.NumberFilter(
        field_name='timeframe_id',        
        lookup_expr='exact',      
    )
    
    mode = django_filters.NumberFilter(
        field_name='mode',     
        lookup_expr='exact',         
    )    
    
    def get_form_class(self):
        return self._meta.form

    class Meta:    
        form = StrategyForm

I can correectly see the widgets i set in StrategyForm class.

However it seems a bug to me, i already set the class on the form attribute inside the Meta class.
Why should i override get_form_class that way to make it works?

[carltongibson]

The fields on the base class are overridden by those given in fields when the form is generated. If you don’t want dynamic generation then implementing get_form_class() directly is the right way to go.