Language AttributeError during deployment

[marianobrc]

Hi, first of all Thanks for your hard work, and sharing your framework.

I'm trying to deploy the server and I'm having some errors. I hope you can give me some clues about what can be happening. Thanks in advance.

First i had to run:

alembic init

Then I've configured the database user and psw in production.ini, then I've run

initialize_gengine_db ./production.ini ./alembic.ini

After that I tried to run the server with

pserve production.ini

I got this error:
/deploy/venv-gamification/local/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.admin.contrib.sqla is deprecated, use flask_admin.contrib.sqla instead.
.format(x=modname), ExtDeprecationWarning
Traceback (most recent call last):
File "/deploy/venv-gamification/bin/pserve", line 11, in
sys.exit(main())
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/pyramid/scripts/pserve.py", line 60, in main
return command.run()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/pyramid/scripts/pserve.py", line 371, in run
global_conf=vars)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/pyramid/scripts/pserve.py", line 406, in loadapp
return loadapp(app_spec, name=name, relative_to=relative_to, *_kw)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
return loadobj(APP, uri, name=name, *_kw)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
return context.create()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
return self.object_type.invoke(self)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
return fix_call(context.object, context.global_conf, *_context.local_conf)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/paste/deploy/util.py", line 55, in fix_call
val = callable(_args, *_kw)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/gengine/init.py", line 63, in main
secret=settings.get("flaskadmin_secret","fKY7kJ2xSrbPC5yieEjV"))
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/gengine/flaskadmin.py", line 81, in init_flaskadmin
admin.add_view(ModelViewTranslationVariable(DBSession, category="Rules"))
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/gengine/flaskadmin.py", line 106, in init
super(ModelViewTranslationVariable, self).init(TranslationVariable, session, *_kwargs)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/view.py", line 318, in init
menu_icon_value=menu_icon_value)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 771, in init
self._refresh_cache()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 861, in _refresh_cache
self._refresh_forms_cache()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 788, in _refresh_forms_cache
self._create_form_class = self.get_create_form()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 1220, in get_create_form
return self.get_form()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/model/base.py", line 1177, in get_form
return self.scaffold_form()
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/view.py", line 670, in scaffold_form
form_class = self.scaffold_inline_form_models(form_class)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/view.py", line 706, in scaffold_inline_form_models
form_class = inline_converter.contribute(self.model, form_class, m)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/form.py", line 610, in contribute
extra_fields=info.form_extra_fields)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/form.py", line 436, in get_form
for name, p in properties:
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/form.py", line 431, in
properties = (find(x) for x in only)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/form.py", line 417, in find
column, path = get_field_with_path(model, name)
File "/deploy/venv-gamification/local/lib/python2.7/site-packages/flask_admin/contrib/sqla/tools.py", line 150, in get_field_with_path
table = current_model.table
AttributeError: type object 'Language' has no attribute 'table'

[saumyadeep-accolite]

Hi,
I had followed the instructions given in the readme and even I'm facing this exact same error
AttributeError: type object 'Language' has no attribute '__table__'
Is there any workaround to this?
Also, Thank you for sharing this framework

[msander]

Which python version are you using? Can you try the develop branch with python 3? A new version will be out soon.

[arunkollan]

I was using python3 and hit upon the same issue, I think I resolved the issue by adding initialising variable __table__ = 'Language' . I am not sure if this is the best fix to the problem as I would expect metadata initialisation to be handled in the abstract base class. Maybe I am wrong.

[msander]

The problem is that the dependency versions are currently not pinned and an flask-admin update broke compatibility. A fix for that update, as well as version pinning will be introduced in v0.2.

[feldi-online]

To temporary fix the issue, you can edit setup.py in line 25 with with 'flask-admin==1.4.0'

[sidgitind]

I edited the setup.py file at line 25 but the issue is not resolved. I still get the same error.

[Gauthamas]

Hi @sidgitind, I was also facing this similar issue, I uninstalled my flask admin and installed pip install flask-admin==1.4.0 and the issue was resolved. I am not well-versed with python so was not sure how the setup.py change would take into affect and hence did this.
PS: also thanks to the team who made this gamification engine

[msander]

I think I can close this here. It's fixed in the current develop-branch and a workaround has been found for the current master. New version will be out soon.