I am having trouble finding documentation on how to add custom
validation to a custom model field.
example:
class PostalField(models.CharField):
def __init__(self,*args,**kwargs):
kwargs['max_length']= 6
super(PostalField, self).__init__(*args, **kwargs)
def get_internal_type(self):
return "CharField"
now when I save from the admin with this field it only validates like
a CharField.
How do I fix this to use some function like below.
def validate(self):
pattern = re.compile("([A-Z,a-z][0-9]){3}")
if not pattern.match(value):
raise forms.ValidationError('Not A valid Postal Code')
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