Allow optional extra_validators parameter in validate methods of forms.py

[GraemeWatt]

This package requires Flask-WTF>=1.0.0, but it breaks with the latest Flask-WTF 1.1.0 released yesterday, where an error message TypeError: validate() takes 1 positional argument but 2 were given is obtained from this line:

flask-security-fork/flask_security/views.py

Line 52 in 3001b07

if form.validate_on_submit():

The failure is due to a change introduced in wtforms/flask-wtf#479. To fix the problem, an optional argument extra_validators=None should be added to each of the validate methods in forms.py. Alternatively, add **kwargs to the validate methods as done in Flask-Middleware/flask-security#566. Until a new fixed release is made of this package, it will be necessary to pin Flask-WTF<1.1.0.

[kpsherva]

the issue was introduced by broken compatibility in flask-wtf v1.1.0. There is already patch (v1.1.1) provided which fixes the method signature, therefore I am closing the issue

[GraemeWatt]

Flask-WTF 1.1.1 gives an error message TypeError: validate() got an unexpected keyword argument 'extra_validators'. Please reopen this issue. You need to replace validate(self) with validate(self, **kwargs) four times in forms.py and release a new version of this package, then bump the version installed by invenio-accounts. See also comments in wtforms/flask-wtf#547.

[GraemeWatt]

This issue was addressed by PR #52 and I confirm that the release v3.1.4 works. You might want to change Flask-Security-Invenio>=3.1.3 to Flask-Security-Invenio>=3.1.4 in the next release of invenio-accounts.