Files
tryton/work.py
T
Cédric Krier 14fbf769da Add round_price
We add a common method to round prices that are stored using the price digits.
It is useless to use the digits from the field because it can not be changed in
any other way than by configuration.

issue9146
review299521002
2020-04-23 21:44:00 +02:00

320 lines
10 KiB
Python

# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import datetime
import random
from decimal import Decimal
from functools import wraps
from trytond.i18n import gettext
from trytond.model import (
ModelSQL, ModelView, Workflow, DeactivableMixin, fields, sequence_ordered,
tree)
from trytond.model.exceptions import AccessError
from trytond.pool import Pool
from trytond.pyson import Eval, If, Bool
from trytond.transaction import Transaction
from trytond.modules.product import price_digits, round_price
from .exceptions import PickerError
class WorkCenterCategory(ModelSQL, ModelView):
'Work Center Category'
__name__ = 'production.work.center.category'
name = fields.Char('Name', required=True, translate=True)
class WorkCenter(DeactivableMixin, tree(separator=' / '), ModelSQL, ModelView):
'Work Center'
__name__ = 'production.work.center'
name = fields.Char('Name', required=True, translate=True)
parent = fields.Many2One('production.work.center', 'Parent', select=True,
domain=[
('company', '=', Eval('company', -1)),
('warehouse', '=', Eval('warehouse', -1)),
],
depends=['company', 'warehouse'])
children = fields.One2Many('production.work.center', 'parent', 'Children',
domain=[
('company', '=', Eval('company', -1)),
('warehouse', '=', Eval('warehouse', -1)),
],
depends=['company', 'warehouse'])
category = fields.Many2One('production.work.center.category', 'Category')
cost_price = fields.Numeric('Cost Price', digits=price_digits,
states={
'required': Bool(Eval('cost_method')),
},
depends=['cost_method'])
cost_method = fields.Selection([
('', ''),
('cycle', 'Per Cycle'),
('hour', 'Per Hour'),
], 'Cost Method',
states={
'required': Bool(Eval('cost_price')),
},
depends=['cost_price'])
company = fields.Many2One('company.company', 'Company', required=True,
select=True)
warehouse = fields.Many2One('stock.location', 'Warehouse', required=True,
domain=[
('type', '=', 'warehouse'),
])
@classmethod
def __setup__(cls):
super(WorkCenter, cls).__setup__()
cls._order.insert(0, ('name', 'ASC'))
@classmethod
def default_company(cls):
return Transaction().context.get('company')
@classmethod
def default_warehouse(cls):
Location = Pool().get('stock.location')
return Location.get_default_warehouse()
@classmethod
def get_picker(cls):
"""Return a method that picks a work center
for the category and the parent"""
cache = {}
def picker(parent, category):
key = (parent, category)
if key not in cache:
work_centers = cls.search([
('parent', 'child_of', [parent.id]),
('category', '=', category.id),
])
if not work_centers:
raise PickerError(
gettext('production_work.msg_missing_work_center',
category=category.rec_name,
parent=parent.rec_name))
cache[key] = work_centers
return random.choice(cache[key])
return picker
class Work(sequence_ordered(), ModelSQL, ModelView):
'Production Work'
__name__ = 'production.work'
operation = fields.Many2One('production.routing.operation', 'Operation',
required=True)
production = fields.Many2One('production', 'Production', required=True,
select=True, ondelete='CASCADE',
domain=[
('company', '=', Eval('company', -1)),
],
depends=['company'])
work_center_category = fields.Function(fields.Many2One(
'production.work.center.category', 'Work Center Category'),
'on_change_with_work_center_category')
work_center = fields.Many2One('production.work.center', 'Work Center',
domain=[
If(~Eval('work_center_category'),
(),
('category', '=', Eval('work_center_category'))),
('company', '=', Eval('company', -1)),
('warehouse', '=', Eval('warehouse', -1)),
],
states={
'required': ~Eval('state').in_(['request', 'draft']),
},
depends=['work_center_category', 'company', 'warehouse', 'state'])
cycles = fields.One2Many('production.work.cycle', 'work', 'Cycles',
states={
'readonly': Eval('state').in_(['request', 'done']),
},
depends=['state'])
company = fields.Many2One('company.company', 'Company', required=True,
select=True)
warehouse = fields.Function(fields.Many2One('stock.location', 'Warehouse'),
'on_change_with_warehouse')
state = fields.Selection([
('request', 'Request'),
('draft', 'Draft'),
('waiting', 'Waiting'),
('running', 'Running'),
('finished', 'Finished'),
('done', 'Done'),
], 'State', select=True, readonly=True)
@classmethod
def __register__(cls, module_name):
super().__register__(module_name)
table = cls.__table_handler__(module_name)
# Migration from 5.4: Drop not null on work_center
table.not_null_action('work_center', 'remove')
@fields.depends('operation')
def on_change_with_work_center_category(self, name=None):
if self.operation and self.operation.work_center_category:
return self.operation.work_center_category.id
@classmethod
def default_company(cls):
return Transaction().context.get('company')
@fields.depends('production', '_parent_production.warehouse')
def on_change_with_warehouse(self, name=None):
if self.production:
return self.production.warehouse.id
@classmethod
def default_state(cls):
return 'request'
@property
def _state(self):
if self.production.state == 'waiting':
return 'request'
elif self.production.state == 'done':
return 'done'
elif (not self.cycles
or all(c.state == 'cancelled' for c in self.cycles)):
return 'draft'
elif all(c.state in ['done', 'cancelled'] for c in self.cycles):
return 'finished'
elif any(c.state == 'running' for c in self.cycles):
return 'running'
else:
return 'waiting'
@classmethod
def set_state(cls, works):
for work in works:
work.state = work._state
cls.save(works)
def get_rec_name(self, name):
return '%s @ %s' % (self.operation.rec_name, self.production.rec_name)
@classmethod
def search_rec_name(cls, name, clause):
if clause[1].startswith('!') or clause[1].startswith('not '):
bool_op = 'AND'
else:
bool_op = 'OR'
return [bool_op,
('operation.rec_name',) + tuple(clause[1:]),
('production.rec_name',) + tuple(clause[1:]),
]
@classmethod
def create(cls, values):
works = super(Work, cls).create(values)
cls.set_state(works)
return works
@classmethod
def delete(cls, works):
for work in works:
if work.state not in {'request', 'draft'}:
raise AccessError(
gettext('production_work.msg_delete_request',
work=work.rec_name))
super(Work, cls).delete(works)
def set_work_state(func):
@wraps(func)
def wrapper(cls, cycles):
pool = Pool()
Work = pool.get('production.work')
func(cls, cycles)
Work.set_state(Work.browse({c.work.id for c in cycles}))
return wrapper
class WorkCycle(Workflow, ModelSQL, ModelView):
'Work Cycle'
__name__ = 'production.work.cycle'
work = fields.Many2One('production.work', 'Work', required=True,
ondelete='CASCADE', select=True)
duration = fields.TimeDelta('Duration',
states={
'required': Eval('state') == 'done',
'readonly': Eval('state').in_(['done', 'draft', 'cancelled']),
},
depends=['state'])
cost = fields.Numeric('Cost', digits=price_digits, readonly=True)
state = fields.Selection([
('draft', 'Draft'),
('running', 'Running'),
('done', 'Done'),
('cancelled', 'Cancelled'),
], 'State', required=True, readonly=True)
@classmethod
def __setup__(cls):
super(WorkCycle, cls).__setup__()
cls._transitions |= set((
('draft', 'running'),
('running', 'done'),
('draft', 'cancelled'),
('running', 'cancelled'),
))
cls._buttons.update({
'cancel': {
'invisible': Eval('state').in_(['done', 'cancelled']),
'depends': ['state'],
},
'run': {
'invisible': Eval('state') != 'draft',
'depends': ['state'],
},
'do': {
'invisible': Eval('state') != 'running',
'depends': ['state'],
},
})
@classmethod
def default_state(cls):
return 'draft'
@classmethod
@ModelView.button
@set_work_state
@Workflow.transition('cancelled')
def cancel(cls, cycles):
pass
@classmethod
@ModelView.button
@set_work_state
@Workflow.transition('running')
def run(cls, cycles):
pass
@classmethod
@ModelView.button
@set_work_state
@Workflow.transition('done')
def do(cls, cycles):
now = datetime.datetime.now()
for cycle in cycles:
cycle.set_duration(now)
cycle.set_cost()
cls.save(cycles)
def set_duration(self, now):
if self.duration is None:
self.duration = now - self.write_date
def set_cost(self):
if self.cost is None:
center = self.work.work_center
if center.cost_method == 'cycle':
self.cost = center.cost_price
elif center.cost_method == 'hour':
hours = self.duration.total_seconds() / (60 * 60)
self.cost = center.cost_price * Decimal(str(hours))
self.cost = round_price(self.cost)