I'm trying to access a form error message as text within a view and use it as a single string.
error_string = ' '.join(form.errors['email'].as_data())
I get this error:
sequence item 0: expected str instance, ValidationError found
What should I do?
form.errors = {
'username':
['This name is reserved and cannot be registered.'],
'password2':
['This password is too short. It must contain at least 8 characters.',
'This password is too common.']
}
error_string = ' '.join([' '.join(x for x in l) for l in list(form.errors.values())])
print(error_string)
>>> This name is reserved and cannot be registered. This password is too short. It must contain at least 8 characters. This password is too common.
You want to join a list of error strings together, so use form.errors['email'].
error_string = ' '.join(form.errors['email'])
You don't want to use the as_data() method, because it returns a list of ValidationError instances instead of strings.
@bdoubleu answer didn't work for me, because it won't show the name of the field that has the error, only the error message,
error_string = ' '.join([' '.join(x for x in l) for l in list(form.errors.values())])
print(error_string)
>>> This field is required
(only shows the error, not the field) if you need both the field and the error message
target = list(form.errors) + list(form.errors.values())
error_string = ' '.join([l for l in target])
print(error_string)
>>> name This field is required
''.join(f'{k}: {"".join(e for e in form.errors[k])}, ' for k in form.errors)