recettes/recette/forms.py

from django import forms

from .models import Recette


class SearchForm(forms.Form):
    text = forms.CharField(widget=forms.TextInput(attrs={'autofocus': True}))
    saison = forms.ChoiceField(choices=(('all', "Toutes"),) + Recette.SAISON_CHOICES)

    def search(self):
        if self.is_valid():
            qs = Recette.objects.all()
            if self.cleaned_data['text']:
                qs = qs.filter(nom__icontains=self.cleaned_data['text'])
            if self.cleaned_data['saison'] != 'all':
                  qs = qs.filter(saison__contains=[self.cleaned_data['saison']])
            return qs
        else:
            return Recette.objects.none()