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255 lines
9.0 KiB
255 lines
9.0 KiB
# -*- coding: utf-8 -*-
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# © 2011 Raphaël Valyi, Renato Lima, Guewen Baconnier, Sodexis
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# © 2017 Akretion (http://www.akretion.com)
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# Mourad EL HADJ MIMOUNE <mourad.elhadj.mimoune@akretion.com>
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
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import time
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from functools import wraps
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from odoo import api, models, fields, _
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from odoo.exceptions import UserError, ValidationError
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from odoo.tools.safe_eval import safe_eval
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def implemented_by_base_exception(func):
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"""Call a prefixed function based on 'namespace'."""
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@wraps(func)
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def wrapper(cls, *args, **kwargs):
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fun_name = func.__name__
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fun = '_%s%s' % (cls.rule_group, fun_name)
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if not hasattr(cls, fun):
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fun = '_default%s' % (fun_name)
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return getattr(cls, fun)(*args, **kwargs)
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return wrapper
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class ExceptionRule(models.Model):
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_name = 'exception.rule'
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_description = "Exception Rules"
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_order = 'active desc, sequence asc'
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name = fields.Char('Exception Name', required=True, translate=True)
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description = fields.Text('Description', translate=True)
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sequence = fields.Integer(
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string='Sequence',
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help="Gives the sequence order when applying the test")
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rule_group = fields.Selection(
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selection=[],
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help="Rule group is used to group the rules that must validated "
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"at same time for a target object. Ex: "
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"validate sale.order.line rules with sale order rules.",
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required=True)
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model = fields.Selection(
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selection=[],
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string='Apply on', required=True)
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active = fields.Boolean('Active')
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next_state = fields.Char(
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'Next state',
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help="If we detect exception we set de state of object (ex purchase) "
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"to the next_state (ex 'to approve'). If there are more than one "
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"exception detected and all have a value for next_state, we use"
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"the exception having the smallest sequence value")
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code = fields.Text(
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'Python Code',
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help="Python code executed to check if the exception apply or "
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"not. The code must apply block = True to apply the "
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"exception.",
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default="""
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# Python code. Use failed = True to block the base.exception.
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# You can use the following variables :
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# - self: ORM model of the record which is checked
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# - "rule_group" or "rule_group_"line:
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# browse_record of the base.exception or
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# base.exception line (ex rule_group = sale for sale order)
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# - object: same as order or line, browse_record of the base.exception or
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# base.exception line
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# - pool: ORM model pool (i.e. self.pool)
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# - time: Python time module
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# - cr: database cursor
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# - uid: current user id
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# - context: current context
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""")
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@api.constrains('next_state')
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def _check_next_state_value(self):
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""" Ensure that the next_state value is in the state values of
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destination model """
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for rule in self:
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if rule.next_state:
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select_vals = self.env[
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rule.model].fields_get()[
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'state']['selection']
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if rule.next_state\
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not in [s[0] for s in select_vals]:
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raise ValidationError(
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_('The value "%s" you chose for the "next state" '
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'field state of "%s" is wrong.'
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' Value must be in this list %s')
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% (rule.next_state,
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rule.model,
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select_vals)
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)
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class BaseException(models.AbstractModel):
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_name = 'base.exception'
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_order = 'main_exception_id asc'
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main_exception_id = fields.Many2one(
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'exception.rule',
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compute='_compute_main_error',
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string='Main Exception',
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store=True)
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rule_group = fields.Selection(
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[],
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readonly=True,
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)
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exception_ids = fields.Many2many(
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'exception.rule',
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string='Exceptions')
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ignore_exception = fields.Boolean('Ignore Exceptions', copy=False)
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@api.depends('exception_ids', 'ignore_exception')
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def _compute_main_error(self):
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for obj in self:
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if not obj.ignore_exception and obj.exception_ids:
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obj.main_exception_id = obj.exception_ids[0]
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else:
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obj.main_exception_id = False
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@api.multi
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def _popup_exceptions(self):
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action = self._get_popup_action()
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action = action.read()[0]
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action.update({
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'context': {
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'active_id': self.ids[0],
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'active_ids': self.ids
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}
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})
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return action
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@api.model
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def _get_popup_action(self):
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action = self.env.ref('base_exception.action_exception_rule_confirm')
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return action
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@api.multi
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def _check_exception(self):
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"""
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This method must be used in a constraint that must be created in the
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object that inherits for base.exception.
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for sale :
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@api.constrains('ignore_exception',)
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def sale_check_exception(self):
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...
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...
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self._check_exception
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"""
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exception_ids = self.detect_exceptions()
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if exception_ids:
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exceptions = self.env['exception.rule'].browse(exception_ids)
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raise ValidationError('\n'.join(exceptions.mapped('name')))
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@api.multi
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def test_exceptions(self):
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"""
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Condition method for the workflow from draft to confirm
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"""
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if self.detect_exceptions():
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return False
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return True
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@api.multi
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def detect_exceptions(self):
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"""returns the list of exception_ids for all the considered base.exceptions
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"""
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if not self:
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return []
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exception_obj = self.env['exception.rule']
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all_exceptions = exception_obj.sudo().search(
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[('rule_group', '=', self[0].rule_group)])
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model_exceptions = all_exceptions.filtered(
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lambda ex: ex.model == self._name)
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sub_exceptions = all_exceptions.filtered(
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lambda ex: ex.model != self._name)
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all_exception_ids = []
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for obj in self:
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if obj.ignore_exception:
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continue
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exception_ids = obj._detect_exceptions(
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model_exceptions, sub_exceptions)
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obj.exception_ids = [(6, 0, exception_ids)]
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all_exception_ids += exception_ids
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return all_exception_ids
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@api.model
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def _exception_rule_eval_context(self, obj_name, rec):
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user = self.env['res.users'].browse(self._uid)
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return {obj_name: rec,
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'self': self.pool.get(rec._name),
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'object': rec,
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'obj': rec,
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'pool': self.pool,
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'cr': self._cr,
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'uid': self._uid,
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'user': user,
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'time': time,
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# copy context to prevent side-effects of eval
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'context': self._context.copy()}
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@api.model
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def _rule_eval(self, rule, obj_name, rec):
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expr = rule.code
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space = self._exception_rule_eval_context(obj_name, rec)
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try:
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safe_eval(expr,
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space,
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mode='exec',
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nocopy=True) # nocopy allows to return 'result'
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except Exception as e:
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raise UserError(
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_('Error when evaluating the exception.rule '
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'rule:\n %s \n(%s)') % (rule.name, e))
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return space.get('failed', False)
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@api.multi
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def _detect_exceptions(self, model_exceptions,
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sub_exceptions):
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self.ensure_one()
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exception_ids = []
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next_state_rule = False
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for rule in model_exceptions:
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if self._rule_eval(rule, self.rule_group, self):
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exception_ids.append(rule.id)
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if rule.next_state:
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if not next_state_rule:
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next_state_rule = rule
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elif next_state_rule and\
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rule.sequence < next_state_rule.sequence:
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next_state_rule = rule
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if sub_exceptions:
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for obj_line in self._get_lines():
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for rule in sub_exceptions:
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if rule.id in exception_ids:
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# we do not matter if the exception as already been
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# found for an line of this object
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# (ex sale order line if obj is sale order)
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continue
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group_line = self.rule_group + '_line'
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if self._rule_eval(rule, group_line, obj_line):
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exception_ids.append(rule.id)
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# set object to next state
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if next_state_rule:
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self.state = next_state_rule.next_state
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return exception_ids
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@implemented_by_base_exception
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def _get_lines(self):
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pass
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def _default_get_lines(self):
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return []
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