class ModelsView(UnicornView):
flavors = Flavor.objects.none()
# Demonstrates how to use an instantiated model; class attributes get stored on
# the class, so django-unicorn handles clearing this with `_resettable_attributes_cache`
# in components.py
class_flavor = Flavor()
def __init__(self, **kwargs):
# Demonstrates how to use an instance variable on the class
self.instance_flavor = Flavor()
# super() `has` to be called at the end
super().__init__(**kwargs)
def hydrate(self):
# Using `hydrate` is the best way to make sure that QuerySets
# are re-queried every time the component is loaded
self.flavors = Flavor.objects.all().order_by("-id")[:2]
def add_instance_flavor(self):
self.instance_flavor.save()
id = self.instance_flavor.id
self.reset()
# return HashUpdate(f"#createdId={id}")
return LocationUpdate(redirect(f"/models?createdId={id}"),
title="new title")
def add_class_flavor(self):
self.class_flavor.save()
id = self.class_flavor.id
self.reset()
return redirect(f"/models?createdId={id}")
@db_model
def delete(self, model):
model.delete()
@cached_property
def available_flavors(self):
flavors = Flavor.objects.all()
if self.instance_flavor and self.instance_flavor.pk:
return flavors.exclude(pk=self.instance_flavor.pk)
return flavors
class Meta:
db_models = [DbModel("flavor", Flavor)]
def __init__(self, **kwargs):
# Demonstrates how to use an instance variable on the class
self.instance_flavor = Flavor()
# super() `has` to be called at the end
super().__init__(**kwargs)