how to use ForeignKeyRawIdWidget
I want to extend ForeignKeyRawIdWidget so I want to be able to use it without setting raw_id_fields.
With the follwoing I don't get an error but I see no effect:
# models.py
class Product(models.Model):
...
class GroupProduct(Product):
...
products = models.ManyToManyField(Product, related_name="%(class)s_related")
# forms.py
class GroupProductAdminForm(forms.ModelForm):
class Meta:
model = GroupProduct
widgets = {
'products': ForeignKeyRawIdWidget(GroupProduct._meta.get_field('products').rel),
}
Th开发者_C百科is gives me an error: init() takes at least 2 non-keyword arguments (1 given)
products = forms.ModelMultipleChoiceField(widget=ForeignKeyRawIdWidget(GroupProduct._meta.get_field('products').rel))
How do I do that?
Thanks
You forgot to pass the related Model-QuerySet to ModelMultipleChoiceField.
products = forms.ModelMultipleChoiceField(Product.objects, widget=ForeignKeyRawIdWidget(GroupProduct._meta.get_field('products').rel))
Using ManyToManyRawIdWidget instead of ForeignKeyRawIdWidget fixed it for me.
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