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[IMP] res_groups: add function field trans_implied_ids 

bzr revid: rco@openerp.com-20111202140417-0hgg92yks1vprnem
This commit is contained in:
Raphael Collet 2011-12-02 15:04:17 +01:00
parent 86bfd7a4ee
commit 08d4845a49
1 changed files with 32 additions and 13 deletions
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45
openerp/addons/base/res/res_users.py
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@ -522,6 +522,8 @@ class users(osv.osv):
users()
#
# Extension of res.groups and res.users with a relation for "implied" or
# "inherited" groups. Once a user belongs to a group, it automatically belongs
@ -530,21 +532,38 @@ users()
class groups_implied(osv.osv):
_inherit = 'res.groups'
def _get_trans_implied(self, cr, uid, ids, field, arg, context=None):
"computes the transitive closure of relation implied_ids"
trans_memo = {}
def compute_trans(g):
"computes the list of group ids transitively implied by g"
# use a memo for performance and cycle avoidance
if g.id in trans_memo:
return trans_memo[g.id]
trans_memo[g.id] = set()
for h in g.implied_ids:
trans_memo[g.id].add(h.id)
trans_memo[g.id].update(compute_trans(h))
return trans_memo[g.id]
res = {}
for g in self.browse(cr, 1, ids, context):
res[g.id] = list(compute_trans(g))
return res
_columns = {
'implied_ids': fields.many2many('res.groups', 'res_groups_implied_rel', 'gid', 'hid',
string='Inherits', help='Users of this group automatically inherit those groups'),
'trans_implied_ids': fields.function(_get_trans_implied,
type='many2many', relation='res.groups', string='Transitively inherits'),
}
def get_closure(self, cr, uid, ids, context=None):
"return the closure of ids, i.e., all groups recursively implied by ids"
closure = set()
todo = self.browse(cr, 1, ids)
while todo:
g = todo.pop()
if g.id not in closure:
closure.add(g.id)
todo.extend(g.implied_ids)
return list(closure)
"return the reflexive transitive closure of implied_ids for group ids"
res = set()
for g in self.browse(cr, 1, ids):
res.update(map(int, [g] + g.trans_implied_ids))
return list(res)
def create(self, cr, uid, values, context=None):
users = values.pop('users', None)
@ -557,11 +576,11 @@ class groups_implied(osv.osv):
def write(self, cr, uid, ids, values, context=None):
res = super(groups_implied, self).write(cr, uid, ids, values, context)
if values.get('users') or values.get('implied_ids'):
# add implied groups (to all users of each group)
# add all implied groups (to all users of each group)
for g in self.browse(cr, uid, ids):
gids = self.get_closure(cr, uid, [g.id], context)
users = [(4, u.id) for u in g.users]
super(groups_implied, self).write(cr, uid, gids, {'users': users}, context)
gids = map(int, g.trans_implied_ids)
vals = {'users': [(4, u.id) for u in g.users]}
super(groups_implied, self).write(cr, uid, gids, vals, context)
return res
def get_maximal(self, cr, uid, ids, context=None):