searching session interruptions is broken

[maormarcus]

/rest/errors?interruptions=true&session_id=[session_id] returns 500 - we call query.filter_by(is_interruption=True) when query model is session, which has no is_interruption field

[maormarcus]

AttributeError: type object 'Session' has no attribute 'is_interruption'
File "sqlalchemy/orm/base.py", line 379, in _entity_descriptor
return getattr(entity, key)
InvalidRequestError: Entity '<class 'flask_app.models.Session'>' has no property 'is_interruption'
File "raven/middleware.py", line 20, in common_exception_handling
yield
File "raven/middleware.py", line 100, in call
iterable = self.application(environ, start_response)
File "werkzeug/contrib/fixers.py", line 152, in call
return self.app(environ, start_response)
File "flask/app.py", line 2295, in wsgi_app
response = self.handle_exception(e)
File "flask_restful/init.py", line 273, in error_router
return original_handler(e)
File "flask/app.py", line 1741, in handle_exception
reraise(exc_type, exc_value, tb)
File "flask/_compat.py", line 34, in reraise
raise value.with_traceback(tb)
File "flask/app.py", line 2292, in wsgi_app
response = self.full_dispatch_request()
File "flask/app.py", line 1815, in full_dispatch_request
rv = self.handle_user_exception(e)
File "flask_restful/init.py", line 273, in error_router
return original_handler(e)
File "flask/app.py", line 1718, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "flask/_compat.py", line 34, in reraise
raise value.with_traceback(tb)
File "flask/app.py", line 1813, in full_dispatch_request
rv = self.dispatch_request()
File "flask/app.py", line 1799, in dispatch_request
return self.view_functionsrule.endpoint
File "flask_restful/init.py", line 480, in wrapper
resp = resource(*args, **kwargs)
File "flask/views.py", line 88, in view
return self.dispatch_request(*args, **kwargs)
File "flask_restful/init.py", line 595, in dispatch_request
resp = meth(*args, **kwargs)
File "flask_app/utils/rest.py", line 27, in get
returned = self._get_iterator()
File "flask_app/blueprints/rest.py", line 284, in _get_iterator
query = query.filter_by(is_interruption=True)
File "sqlalchemy/orm/query.py", line 1689, in filter_by
for key, value in kwargs.items()]
File "sqlalchemy/orm/query.py", line 1689, in
for key, value in kwargs.items()]
File "sqlalchemy/orm/base.py", line 383, in _entity_descriptor
(description, key)

[maormarcus]

applicable only for parallel sessions (so the join in line 276 will be executed)