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[Launchpad Bug Tracker <944813@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:openobject-server/6.1

** Branch linked: lp:openobject-addons/6.1

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https://bugs.launchpad.net/bugs/944813

Title:
  can't access some user object once user has changed company

Status in OpenERP Server:
  Fix Released

Bug description:
  ISSUE:

  We are using ``project`` module, and have 2 company's registered in
  OpenERP (6.1 final).

  When a user creates a task in a company, then changes their default
  company in their profile settings, other users registered only in the
  first company are unable to access the form view of the task. They
  receive a:

  "Access Error" on operation "read" on document type "Users"

  Although we can check that the task is correctly registered to be in the first company.
  Notice that also, it's on "Users" that the AccessError is triggered and not Tasks...

  MORE INFORMATION:

  After looking deeper, it seems that "ir_rules" are involved in
  checking that current user is authorized to view the "res.users"
  record that describes the creator of the task. Information on the
  project.task creator is needed probably to display it's name.

  The rule (in "ir_rules") concerning "res.users" object is set by
  default to this value (as of lp:openobject-server rev 4072):

  in base/res/res_security.xml:

  ['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])]

  Which will use "company_id" of the target user to check if we can
  access his "res.user" record.

  If using "company_id" attribute makes sense in other objects as
  "project.tasks" to decide if a user can see it, it seems to me that it
  has a different meaning in "res.users" objects: it's the last context
  value of this user. It's some sort of a personnal configuration that
  shouldn't be used to check for granting permissions to other users to
  get access to my res.users record.

  Instead, what seems important is to check "company_ids" (with a final
  's') which list all companies in which this user is registered as a
  member.

  My proposition would be to put something like this:

    [('company_ids', 'child_of', user.company_id.id)]

  Any comments ?

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