CODEWITHSUNDEEP
djangodjango-validation
darkhorse
darkhorse

Reputation: 8722

Getting the message from defined in a Django RegexValidator object

I defined a RegexValidator using Django's built-in class. Like as follows:

from django.core.validators import RegexValidator

validate_alphanumeric = RegexValidator(r'^[a-zA-Z0-9]*$', 'Only alphanumeric characters are allowed.')

The issue is that I am using this from outside of the model definition. Like as follows:

try:
    validate_alphanumeric("++")
except:
    # Somehow get the message defined above, that is get 'Only alphanumeric characters are allowed.'

In other words, if the string passed causes an error, I want to get the message stored in my RegexValidator object definition. How can I do this?

Upvotes: 0

Views: 111

Answers (1)

Alasdair
Alasdair

Reputation: 308899

Catch the exception and use the message attribute of the validation error.

from django.core.exceptions import ValidationError

try:
    validate_alphanumeric("++")
except ValidationError as exc:
    message = exc.message

Upvotes: 1

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