hey all
I have a model which is as such:
*in models.py*
class ConditionSet(models.Model):
model_name = models.CharField(max_length=
50)
model_attribute = models.CharField(max_length=50)
operator = models.CharField(max_length=50,
choices=OPERATORS)
val =
models.CharField(max_length=50,null=True,blank=True)
evaluation = models.NullBooleanField(null=True, blank=True)
def __str__(self):
return self.model_attribute
*in admin.py :*
def get_all_models():
return [('.'.join([each._meta.app_label,each.__name__]),each.__name__)
for each in [each.model_class() for each in
ContentType.objects.filter(app_label__in=['products','productoptions','shoppingcart'])
if each is not None] if each is not None]
def get_attributes():
model_class =
ContentType.objects.filter(app_label__in=['products','productoptions','shoppingcart'])[0].model_class()
return [ (each.name,each.name) for each in model_class._meta.fields ]
class ConditionSetAdminForm(forms.ModelForm):
def __init__(self,*args,**kwargs):
super(ConditionSetAdminForm, self).__init__(*args,**kwargs)
self.fields['model_name'] = forms.ChoiceField(required=True,
label='Model Name', choices=get_all_models())
self.fields['model_attribute'] = forms.ChoiceField(required=True,
label='Model Attribute', choices=get_attributes())
class Meta:
model = ConditionSet
class ConditionSetAdmin(admin.ModelAdmin):
form = ConditionSetAdminForm
admin.site.register(ConditionSet, ConditionSetAdmin )
model_attribute has an initial set of choices, populated by
get_attributes().
When a user selects model_name in admin, i make a json call to get options
and populate model_attribute options , but when i try to save it, i get
"select a valid choice. xyz_attribute_name is not one of the available
choices."
I understand the problem is the choices for this field are still the one
assigned to it in beginning, how should I fix it ?
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