[Ready to merge] Create Event specific Roles, Services, Permissions

[shivamMg]

>>> from open_event.models.permission import Permission
>>> for p in Permission.query.all():
...  create = 'Create' if p.can_create else ''
...  read = 'Read' if p.can_read else ''
...  update = 'Update' if p.can_update else ''
...  delete = 'Delete' if p.can_delete else ''
...  print p.role, p.service, create, read, update, delete
... 
<Role u'organizer'> <Service u'track'> Create Read Update Delete
<Role u'organizer'> <Service u'session'> Create Read Update Delete
<Role u'organizer'> <Service u'speaker'> Create Read Update Delete
<Role u'organizer'> <Service u'sponsor'> Create Read Update Delete
<Role u'organizer'> <Service u'microlocation'> Create Read Update Delete
# 
<Role u'coorganizer'> <Service u'track'>  Read Update 
<Role u'coorganizer'> <Service u'session'>  Read Update 
<Role u'coorganizer'> <Service u'speaker'>  Read Update 
<Role u'coorganizer'> <Service u'sponsor'>  Read Update 
<Role u'coorganizer'> <Service u'microlocation'>  Read Update 
#
<Role u'track_organizer'> <Service u'track'>  Read Update 
#
<Role u'moderator'> <Service u'track'>  Read

The permissions printed above adhere to #623

Update 2:

User class has the following methods to check its role:

user.is_organizer(event_id)
user.is_coorganizer(event_id)
user.is_track_organizer(event_id)
user.is_moderator(event_id)
user.is_speaker(event_id)

Update 3:

User class has the following methods to check permissions:

user.can_create(service, event_id)
user.can_read(service, event_id)
user.can_update(service, event_id)
user.can_delete(service, event_id)

e.g.

>>> from open_event.models.user import User
>>> from open_event.models.track import Track
>>> u = User.query.all()[0]
>>> u.can_create(Track, event_id=1)
True
>>> u.can_update(Track, event_id=1)
True
>>> u.can_update(Track, event_id=2)
False

Service contains:

track
session
speaker
sponsor
microlocation

Role contains:

organizer
coorganizer
track_organizer
moderator
speaker

@rafalkowalski @aditya1702 It's ready to merge. Please review. After you migrate and upgrade, drop_db first and then create_db again. It will create the above mentioned roles and services, and permissions between them.

You can define a user's role for an event in UsersEventsRoles

>>> from open_event.models.users_events_roles import UsersEventsRoles as UER
>>> from open_event.models.user import User
>>> from open_event.models.event import Event
>>> from open_event.models.role import Role
>>> r = Role.query.filter_by(name='track_organizer').first()
>>> e = Event.query.get(1)
>>> from open_event.helpers.data import save_to_db
>>> u = User(email='asd@email.com')
>>> save_to_db(u, 'asfd')
True
>>> uer = UER(user=u, event=e, role=r)
>>> save_to_db(uer, 'asdf')
True
>>> from open_event.models.session import Session
>>> from open_event.models.track import Track
# 'u' is a track organizer and can only update and read tracks for an event.
>>> u.can_delete(Track, 1)
False
>>> u.can_create(Track, 1)
False
>>> u.can_read(Track, 1)
True
>>> u.can_update(Track, 1)
True
>>> u.can_delete(Track, 1)
False

[mariobehling]

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[coveralls]

Coverage increased (+0.08%) to 79.345% when pulling dd47abd on shivamMg:perm-sys/create-fix into dee72b3 on fossasia:development.

[shivamMg]

@mariobehling I'm doing it in three parts:

• Create event-specific roles (create db models)
• Define event-specific methods for User
• Define service-permission methods for User Done!

I'll fix tests all at once.

[codecov-io]

Current coverage is 78.99%

Merging #885 into development will decrease coverage by 0.27%

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  Files              105        106     +1   
  Lines             4582       4637    +55   
  Methods              0          0          
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+ Hits              3632       3663    +31   
- Misses             950        974    +24   
  Partials             0          0          

Powered by Codecov. Last updated by dee72b3...e1583e6

[coveralls]

Coverage decreased (-0.3%) to 78.995% when pulling e1583e6 on shivamMg:perm-sys/create-fix into dee72b3 on fossasia:development.