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# -*- coding: utf-8 -*-
# Copyright 2017 Eficent Business and IT Consulting Services S.L.
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
from openerp import api, fields, models, _
from openerp.exceptions import ValidationError, UserError
from openerp.tools.safe_eval import safe_eval
class TierValidation(models.AbstractModel):
_name = "tier.validation"
_state_field = 'state'
_state_from = ['draft']
_state_to = ['confirmed']
_cancel_state = 'cancel'
# TODO: reset validation?
# TODO: step by step validation?
review_ids = fields.One2many(
comodel_name='tier.review', inverse_name='res_id',
string='Validations',
domain=lambda self: [('model', '=', self._name)],
auto_join=True,
)
validated = fields.Boolean(compute="_compute_validated_rejected")
need_validation = fields.Boolean(compute="_compute_need_validation")
rejected = fields.Boolean(compute="_compute_validated_rejected")
reviewer_ids = fields.Many2many(
string="Reviewers", comodel_name="res.users",
compute="_compute_reviewer_ids",
search="_search_reviewer_ids",
)
@api.multi
@api.depends('review_ids')
def _compute_reviewer_ids(self):
for rec in self:
rec.reviewer_ids = rec.review_ids.filtered(
lambda r: r.status == 'pending').mapped('reviewer_ids')
@api.model
def _search_reviewer_ids(self, operator, value):
reviews = self.env['tier.review'].search([
('model', '=', self._name), ('reviewer_ids', operator, value)])
return [('id', 'in', list(set(reviews.mapped('res_id'))))]
@api.multi
def _compute_validated_rejected(self):
"""Override for different validation/rejection policy."""
for rec in self:
# sort by tier
rec.validated = not any(
[s != 'approved' for s in self.review_ids.mapped('status')])
rec.rejected = any(
[s == 'rejected' for s in self.review_ids.mapped('status')])
@api.multi
def _compute_need_validation(self):
for rec in self:
rec.need_validation = not self.review_ids and self.env[
'tier.definition'].search([('model', '=', self._name)]) and \
getattr(rec, self._state_field) in self._state_from
@api.multi
def evaluate_tier(self, tier):
try:
res = safe_eval(tier.python_code, globals_dict={'rec': self})
except Exception, error:
raise UserError(_(
"Error evaluating tier validation conditions.\n %s") % error)
return res
@api.multi
def write(self, vals):
for rec in self:
if (getattr(rec, self._state_field) in self._state_from and
vals.get(self._state_field) in self._state_to):
if rec.need_validation:
raise ValidationError(_(
"This action needs to be validated for at least one "
"record. \nPlease request a validation."))
if not rec.validated:
raise ValidationError(_(
"A validation process is still open for at least "
"one record."))
if (rec.review_ids and getattr(rec, self._state_field) in
self._state_from and not vals.get(self._state_field) in
(self._state_to + [self._cancel_state])):
raise ValidationError(_("The operation is under validation."))
if vals.get(self._state_field) in self._state_from:
self.mapped('review_ids').sudo().unlink()
return super(TierValidation, self).write(vals)
@api.multi
def validate_tier(self):
for rec in self:
user_reviews = rec.review_ids.filtered(
lambda r: r.status in ('pending', 'rejected') and
(r.reviewer_id == self.env.user or
r.reviewer_group_id in self.env.user.groups_id))
user_reviews.write({'status': 'approved'})
@api.multi
def reject_tier(self):
for rec in self:
user_reviews = rec.review_ids.filtered(
lambda r: r.status in ('pending', 'approved') and
(r.reviewer_id == self.env.user or
r.reviewer_group_id in self.env.user.groups_id))
user_reviews.write({'status': 'rejected'})
@api.multi
def request_validation(self):
td_obj = self.env['tier.definition']
tr_obj = self.env['tier.review']
for rec in self:
if getattr(rec, self._state_field) in self._state_from:
if rec.need_validation:
tier_definitions = td_obj.search([
('model', '=', self._name)], order="sequence desc")
sequence = 0
for td in tier_definitions:
if self.evaluate_tier(td):
sequence += 1
tr_obj.create({
'model': self._name,
'res_id': rec.id,
'definition_id': td.id,
'sequence': sequence,
})
# TODO: notify? post some msg in chatter?
return True