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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2012 Étienne Loks <etienne.loks_AT_peacefrogsDOTnet>
# 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/>.
# See the file COPYING for details.
import datetime
from django.conf import settings
from django.contrib.gis.db import models
from django.db.models.signals import post_save, post_delete
from django.template.defaultfilters import slugify
from django.utils.translation import ugettext_lazy as _, ugettext
from ishtar_common.utils import cached_label_changed
from ishtar_common.models import GeneralType, \
LightHistorizedItem, OwnPerms, Address, Person, post_save_cache
class WarehouseType(GeneralType):
class Meta:
verbose_name = _(u"Warehouse type")
verbose_name_plural = _(u"Warehouse types")
ordering = ('label',)
post_save.connect(post_save_cache, sender=WarehouseType)
post_delete.connect(post_save_cache, sender=WarehouseType)
class Warehouse(Address, OwnPerms):
SHOW_URL = 'show-warehouse'
name = models.CharField(_(u"Name"), max_length=200)
warehouse_type = models.ForeignKey(WarehouseType,
verbose_name=_(u"Warehouse type"))
person_in_charge = models.ForeignKey(
Person, on_delete=models.SET_NULL, related_name='warehouse_in_charge',
verbose_name=_(u"Person in charge"), null=True, blank=True)
comment = models.TextField(_(u"Comment"), null=True, blank=True)
associated_divisions = models.ManyToManyField(
'WarehouseDivision', verbose_name=_("Divisions"), blank=True,
through='WarehouseDivisionLink'
)
TABLE_COLS = ['name', 'warehouse_type']
class Meta:
verbose_name = _(u"Warehouse")
verbose_name_plural = _(u"Warehouses")
permissions = (
("view_warehouse", ugettext(u"Can view all Warehouses")),
("view_own_warehouse", ugettext(u"Can view own Warehouse")),
("add_own_warehouse", ugettext(u"Can add own Warehouse")),
("change_own_warehouse", ugettext(u"Can change own Warehouse")),
("delete_own_warehouse", ugettext(u"Can delete own Warehouse")),
)
def __unicode__(self):
return u"%s (%s)" % (self.name, unicode(self.warehouse_type))
@property
def associated_filename(self):
return datetime.date.today().strftime('%Y-%m-%d') + '-' + \
slugify(unicode(self))
def save(self, *args, **kwargs):
super(Warehouse, self).save(*args, **kwargs)
for container in self.containers.all():
cached_label_changed(Container, instance=container)
class Collection(LightHistorizedItem):
name = models.CharField(_(u"Name"), max_length=200,
null=True, blank=True)
description = models.TextField(_(u"Description"), null=True, blank=True)
warehouse = models.ForeignKey(Warehouse, verbose_name=_(u"Warehouse"),
related_name='collections')
class Meta:
verbose_name = _(u"Collection")
verbose_name_plural = _(u"Collection")
ordering = ('name',)
def __unicode__(self):
return self.name
class WarehouseDivision(GeneralType):
class Meta:
verbose_name = _(u"Warehouse division")
verbose_name_plural = _(u"Warehouse divisions")
post_save.connect(post_save_cache, sender=WarehouseDivision)
post_delete.connect(post_save_cache, sender=WarehouseDivision)
class WarehouseDivisionLink(models.Model):
RELATIVE_MODELS = {Warehouse: 'warehouse'}
warehouse = models.ForeignKey(Warehouse)
division = models.ForeignKey(WarehouseDivision)
order = models.IntegerField(_("Order"), default=10)
class Meta:
ordering = ('warehouse', 'order')
unique_together = ('warehouse', 'division')
def __unicode__(self):
return u"{} - {}".format(self.warehouse, self.division)
class ContainerType(GeneralType):
length = models.IntegerField(_(u"Length (mm)"), blank=True, null=True)
width = models.IntegerField(_(u"Width (mm)"), blank=True, null=True)
height = models.IntegerField(_(u"Height (mm)"), blank=True, null=True)
volume = models.IntegerField(_(u"Volume (l)"), blank=True, null=True)
reference = models.CharField(_(u"Ref."), max_length=30)
class Meta:
verbose_name = _(u"Container type")
verbose_name_plural = _(u"Container types")
ordering = ('label',)
post_save.connect(post_save_cache, sender=ContainerType)
post_delete.connect(post_save_cache, sender=ContainerType)
class Container(LightHistorizedItem):
TABLE_COLS = ['reference', 'container_type__label', 'cached_location',
'divisions_lbl']
# search parameters
EXTRA_REQUEST_KEYS = {
'location': 'location__pk',
'container_type': 'container_type__pk',
'reference': 'reference__icontains',
}
SHOW_URL = 'show-container'
COL_LABELS = {
'cached_location': _(u"Location - index"),
'divisions_lbl': _(u"Precise localisation"),
}
CACHED_LABELS = ['cached_label', 'cached_location']
# fields
location = models.ForeignKey(Warehouse, verbose_name=_(u"Warehouse"),
related_name='containers')
container_type = models.ForeignKey(ContainerType,
verbose_name=_("Container type"))
reference = models.CharField(_(u"Container ref."), max_length=40)
comment = models.TextField(_(u"Comment"), null=True, blank=True)
cached_label = models.CharField(_(u"Cached name"), max_length=500,
null=True, blank=True)
cached_location = models.CharField(_(u"Cached location"), max_length=500,
null=True, blank=True)
index = models.IntegerField(u"Index", default=0)
class Meta:
verbose_name = _(u"Container")
verbose_name_plural = _(u"Containers")
ordering = ('cached_label',)
unique_together = ('index', 'location')
def __unicode__(self):
lbl = u"{} ({})".format(self.reference, self.container_type)
return lbl
def _generate_cached_label(self):
items = [self.reference, self.precise_location]
cached_label = u" | ".join(items)
return cached_label
def _generate_cached_location(self):
items = [self.location.name, unicode(self.index)]
cached_label = u" - ".join(items)
return cached_label
@property
def associated_filename(self):
filename = datetime.date.today().strftime('%Y-%m-%d')
filename += u'-' + self.reference
filename += u"-" + self.location.name
filename += u"-" + unicode(self.index)
filename += u"-" + self.divisions_lbl
return slugify(filename)
@property
def precise_location(self):
return self.location.name + u" - " + self.divisions_lbl
@property
def divisions_lbl(self):
locas = [
u"{} {}".format(loca.division.division, loca.reference)
for loca in ContainerLocalisation.objects.filter(
container=self)
]
return u" | ".join(locas)
def save(self, *args, **kwargs):
super(Container, self).save(*args, **kwargs)
if not self.index:
self.skip_history_when_saving = True
q = Container.objects.filter(location=self.location).order_by(
'-index')
if q.count():
self.index = q.all()[0].index + 1
else:
self.index = 1
self._cached_label_checked = False
self.save()
post_save.connect(cached_label_changed, sender=Container)
class ContainerLocalisation(models.Model):
container = models.ForeignKey(Container, verbose_name=_(u"Container"))
division = models.ForeignKey(WarehouseDivisionLink,
verbose_name=_(u"Division"))
reference = models.CharField(_(u"Reference"), max_length=200, default='')
class Meta:
verbose_name = _(u"Container localisation")
verbose_name_plural = _(u"Container localisations")
unique_together = ('container', 'division')
ordering = ('container', 'division__order')
def __unicode__(self):
lbl = u" - ".join((unicode(self.container),
unicode(self.division), self.reference))
return lbl
def save(self, *args, **kwargs):
super(ContainerLocalisation, self).save(*args, **kwargs)
cached_label_changed(Container, instance=self.container)
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