WTForms 1.0.2 support

[klen]

New version WTForms (1.0.2) makes Flask-admin crashed with error:

File "/home/klen/Projects/tweetchi/base/core/admin.py", line 10, in <module>
  admin.add_model(Alembic, AlembicView)
File "/home/klen/Projects/tweetchi/base/core/ext.py", line 38, in add_model
  self.add_view(view(model, db.session))
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/flask_admin/contrib/sqlamodel/view.py", line 141, in __init__
  super(ModelView, self).__init__(model, name, category, endpoint, url)
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 222, in __init__
  self._refresh_cache()
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 234, in _refresh_cache
  self._create_form_class = self.get_create_form()
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 419, in get_create_form
  return self.get_form()
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 411, in get_form
  return self.scaffold_form()
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/flask_admin/contrib/sqlamodel/view.py", line 367, in scaffold_form
  converter=form.AdminModelConverter(self))
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/wtforms/ext/sqlalchemy/orm.py", line 303, in model_form
  converter)
File "/home/klen/Projects/tweetchi/.env/local/lib/python2.7/site-packages/wtforms/ext/sqlalchemy/orm.py", line 241, in model_fields
  field_args.get(name), db_session)
TypeError: convert() takes exactly 5 arguments (6 given)

With WTForms==1.0.1 it works as fine.

[mrjoes]

I plan to remove wtforms sqlalchemy extension dependency in next flask-admin version to prevent such errors from happening.

For now, see http://flask.pocoo.org/mailinglist/archive/2012/6/26/flask-admin-without-flask-sqlalchemy/#4a3e3a42dd0070b997ce92f68c1a7323 for a workaround.

[klen]

When you will done next release of Flask-admin?

[mrjoes]

For now, I pushed quick fix. Hope to release new flask-admin version next week.

[klen]

Thanks a lot.