GOLEM/golem_activity_registration/models/golem_activity_registration.py

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# -*- coding: utf-8 -*-
# copyright 2016 fabien bourgeois <fabien@yaltik.com>
#
# this program is free software: you can redistribute it and/or modify
# it under the terms of the gnu affero general public license as
# published by the free software foundation, either version 3 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 affero general public license for more details.
#
# you should have received a copy of the gnu affero general public license
# along with this program. if not, see <http://www.gnu.org/licenses/>.
from openerp import models, fields, api, _
class GolemMember(models.Model):
_inherit = 'golem.member'
activity_registration_ids = fields.One2many('golem.activity.registration',
'member_id', 'Activities')
class GolemActivity(models.Model):
_inherit = 'golem.activity'
_sql_constraints = [('golem_activity_places_signed',
'CHECK (places >= 0)',
_('Number of places cannot be negative.'))]
activity_registration_ids = fields.One2many('golem.activity.registration',
'activity_id', 'Members')
places_used = fields.Integer('Places used', compute='_compute_places_used',
store=True)
@api.one
@api.depends('activity_registration_ids')
def _compute_places_used(self):
self.places_used = len(self.activity_registration_ids)
places = fields.Integer('Places', default=20)
places_remain = fields.Integer('Remaining places', store=True,
compute='_compute_places_remain')
@api.one
@api.depends('places', 'places_used')
def _compute_places_remain(self):
self.places_remain = self.places - self.places_used
@api.constrains('places_remain')
def _check_remaining_places(self):
""" Forbid inscription when there is no more place """
for s in self:
if s.places_remain < 0:
emsg = _('Sorry, there is no more place !')
raise models.ValidationError(emsg)
class GolemActivityRegistration(models.Model):
_name = 'golem.activity.registration'
_description = 'GOLEM Activity Registration'
member_id = fields.Many2one('golem.member', string='Member', required=True,
ondelete='cascade')
activity_id = fields.Many2one('golem.activity', required=True,
string='Activity', ondelete='cascade')
season_id = fields.Many2one(string='Season',
related='activity_id.season_id')
is_current = fields.Boolean('Current season?',
related='activity_id.is_current')
_sql_constraints = [
('registration_uniq', 'UNIQUE (member_id, activity_id)',
_('This member has already been registered for this activity.'))]
@api.constrains('member_id', 'activity_id')
def _check_season_reliability(self):
""" Forbid registration when member season if not coherent with
activity season or are duplicates """
for r in self:
if r.activity_id.season_id not in r.member_id.season_ids:
emsg = _('Subscription can not be executed : the targeted '
'member is not on the same season as the activity.')
raise models.ValidationError(emsg)