##############################################################################
#
# Copyright (c) 2004-2008 TINY SPRL. (http://tiny.be) All Rights Reserved.
#
# $Id$
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

from osv import fields,osv
import tools

class hr_department(osv.osv):
    _name = "hr.department"
    _columns = {
        'name': fields.char('Department Name', size=64, required=True),
        'company_id': fields.many2one('res.company', 'Company', select=True, required=True),
        'parent_id': fields.many2one('hr.department', 'Parent Department', select=True),
        'child_ids': fields.one2many('hr.department', 'parent_id', 'Childs Departments'),
        'note': fields.text('Note'),
        'manager_id': fields.many2one('res.users', 'Manager', required=True),
        'member_ids': fields.many2many('res.users', 'hr_department_user_rel', 'department_id', 'user_id', 'Members'),
    }
    def _get_members(self,cr, uid, context={}):
        mids = self.search(cr, uid, [('manager_id','=',uid)])
        result = {uid:1}
        for m in self.browse(cr, uid, mids, context):
            for user in m.member_ids:
                result[user.id] = 1
        return result.keys()
    def _check_recursion(self, cr, uid, ids):
        level = 100
        while len(ids):
            cr.execute('select distinct parent_id from hr_department where id in ('+','.join(map(str,ids))+')')
            ids = filter(None, map(lambda x:x[0], cr.fetchall()))
            if not level:
                return False
            level -= 1
        return True
    _constraints = [
        (_check_recursion, 'Error! You can not create recursive departments.', ['parent_id'])
    ]

hr_department()


class ir_action_window(osv.osv):
    _inherit = 'ir.actions.act_window'

    def read(self, cr, uid, ids, fields=None, context=None,
            load='_classic_read'):
        select = ids
        if isinstance(ids, (int, long)):
            select = [ids]
        res = super(ir_action_window, self).read(cr, uid, select, fields=fields,
                context=context, load=load)
        for r in res:
            mystring = 'department_users_get()'
            if mystring in (r.get('domain', '[]') or ''):
                r['domain'] = r['domain'].replace(mystring, str(
                    self.pool.get('hr.department')._get_members(cr, uid)))
        if isinstance(ids, (int, long)):
            return res[0]
        return res

ir_action_window()


