app/soc/logic/models/role.py

   1 #!/usr/bin/python2.5
   2 #
   3 # Copyright 2008 the Melange authors.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #   http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 """Role (Model) query functions.
  18 """
  19
  20 __authors__ = [
  21   '"Sverre Rabbelier" <sverre@rabbelier.nl>',
  22   '"Lennard de Rijk" <ljvderijk@gmail.com>',
  23   ]
  24
  25
  26 from soc.cache import sidebar
  27 from soc.logic.models import base
  28
  29 import soc.models.role
  30
  31
  32 class Logic(base.Logic):
  33   """Logic methods for the Role model.
  34   """
  35
  36   def __init__(self, model=soc.models.role.Role,
  37                base_model=None, scope_logic=None):
  38     """Defines the name, key_name and model for this entity.
  39     """
  40
  41     super(Logic, self).__init__(model, base_model=base_model,
  42                                 scope_logic=scope_logic)
  43
  44
  45   def getGroupEntityFromScopePath(self, group_logic, scope_path):
  46     """Returns a group entity by using the given scope_path.
  47
  48     Args:
  49       group_logic: logic for the group which should be retrieved
  50       scope_path : the scope path of the entity
  51     """
  52     group_key_fields = scope_path.rsplit('/', 1)
  53
  54     if len(group_key_fields) == 1:
  55       # there is only a link_id
  56       fields = {'link_id' : group_key_fields[0]}
  57     else:
  58       # there is a scope_path and link_id
  59       fields = {'scope_path' : group_key_fields[0],
  60                 'link_id' : group_key_fields[1]}
  61
  62     group = group_logic.getForFields(fields, unique=True)
  63
  64     return group
  65
  66   def _updateField(self, entity, entity_properties, name):
  67     """Special logic for role. If status changes to active we flush the sidebar.
  68     """
  69
  70     value = entity_properties[name]
  71
  72     if (name == 'status') and (entity.status != value) and value == 'active':
  73       # in case the status of the role changes to active we flush the sidebar
  74       # cache. Other changes will be visible after the retention time expires.
  75       sidebar.flush(entity.user.account)
  76
  77     return True
  78
  79   def _onCreate(self, entity):
  80     """Flush the sidebar cache when a new active role entity has been created.
  81     """
  82
  83     if entity.status == 'active':
  84       sidebar.flush(entity.user.account)
  85
  86     super(Logic, self)._onCreate(entity)
  87
  88
  89 logic = Logic()