Well categoriederecette is a foereign key to your Categorie model. Your models don't make any real sense.
If your categories are fixed you can remove foreign key and add charfield and definitions directly to Recette model. If you expect that categories are added, changed, created or deleted frequently having your current structure is okayish. Just make a name field in Categorie model as free text. 'Christian' via Django users <django-users@googlegroups.com> kirjoitti ti 13. marrask. 2018 klo 14.45: > Hello > > I need to use a model form to create a new instance of Recette, using > multiple choices list instead of the foreign_key > > *class Recette(models.Model):* > * ......* > * categoriederecette = models.ForeignKey(Categorie, > on_delete=models.CASCADE) * > > *class Categorie(models.Model):* > * SOUPE = 'SP'* > * DESSERTS ='DS'* > * PLATUNIQUE ='PU'* > * LISTE_CHOIX = ((SOUPE,'Soupe'), (DESSERTS,'Desserts'), > (PLATUNIQUE,'Plat unique'),)* > * .....* > * categorierecette = models.CharField(db_column='Categorierecette', > max_length=15, choices=LISTE_CHOIX, blank=True, null=True) # Field name > made lowercase....* > > I use a Modelform > * : * > > *class RecettesForm(forms.ModelForm):* > * categoriederecette = forms.ChoiceField(choices = > Categorie.LISTE_CHOIX)* > > * class Meta:* > * model = Recette* > * fields = (......** ,'categoriederecette')* > > > The form is displayed correctly, but cannot be saved. In the test *if > form.is_valid():* I get a value error - > > * ValueError: Cannot assign "'SP'": "Recette.categoriederecette" must be a > "Categorie" instance.* > > Any help would be greatly appreciated. > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-users+unsubscr...@googlegroups.com. > To post to this group, send email to django-users@googlegroups.com. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/524c62ab-2454-7746-ec6a-9c7daeed775d%40yahoo.fr > <https://groups.google.com/d/msgid/django-users/524c62ab-2454-7746-ec6a-9c7daeed775d%40yahoo.fr?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAHn91of2kF6XJFx--5iJMsx%3D-1jHdQ2pxoHxNwNHyjp%3Dm9jWEg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
