Sith/stock/models.py

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# -*- coding:utf-8 -*
#
# Copyright 2016,2017
# - Guillaume "Lo-J" Renaud <renaudg779@gmail.com>
# - Skia <skia@libskia.so>
#
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
# http://ae.utbm.fr.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License a 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 General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
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from django.conf import settings
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from django.db import models
from django.urls import reverse
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from django.utils.translation import gettext_lazy as _
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from counter.models import Counter, ProductType
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class Stock(models.Model):
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"""
The Stock class, this one is used to know how many products are left for a specific counter
"""
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name = models.CharField(_("name"), max_length=64)
counter = models.OneToOneField(
Counter,
verbose_name=_("counter"),
related_name="stock",
on_delete=models.CASCADE,
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)
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def __str__(self):
return "%s (%s)" % (self.name, self.counter)
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def get_absolute_url(self):
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return reverse("stock:list")
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def can_be_viewed_by(self, user):
return user.is_in_group(pk=settings.SITH_GROUP_COUNTER_ADMIN_ID)
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class StockItem(models.Model):
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"""
The StockItem class, element of the stock
"""
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name = models.CharField(_("name"), max_length=64)
unit_quantity = models.IntegerField(
_("unit quantity"), default=0, help_text=_("number of element in one box")
)
effective_quantity = models.IntegerField(
_("effective quantity"), default=0, help_text=_("number of box")
)
minimal_quantity = models.IntegerField(
_("minimal quantity"),
default=1,
help_text=_(
"if the effective quantity is less than the minimal, item is added to the shopping list"
),
)
type = models.ForeignKey(
ProductType,
related_name="stock_items",
verbose_name=_("type"),
null=True,
blank=True,
on_delete=models.SET_NULL,
)
stock_owner = models.ForeignKey(
Stock, related_name="items", on_delete=models.CASCADE
)
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def __str__(self):
return "%s" % (self.name)
def get_absolute_url(self):
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return reverse("stock:items_list", kwargs={"stock_id": self.stock_owner.id})
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def can_be_viewed_by(self, user):
return user.is_in_group(pk=settings.SITH_GROUP_COUNTER_ADMIN_ID)
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class ShoppingList(models.Model):
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"""
The ShoppingList class, used to make an history of the shopping lists
"""
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date = models.DateTimeField(_("date"))
name = models.CharField(_("name"), max_length=64)
todo = models.BooleanField(_("todo"))
comment = models.TextField(_("comment"), null=True, blank=True)
stock_owner = models.ForeignKey(
Stock, null=True, related_name="shopping_lists", on_delete=models.CASCADE
)
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def __str__(self):
return "%s (%s)" % (self.name, self.date)
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def get_absolute_url(self):
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return reverse("stock:shoppinglist_list")
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def can_be_viewed_by(self, user):
return user.is_in_group(pk=settings.SITH_GROUP_COUNTER_ADMIN_ID)
class ShoppingListItem(models.Model):
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""""""
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shopping_lists = models.ManyToManyField(
ShoppingList,
verbose_name=_("shopping lists"),
related_name="shopping_items_to_buy",
)
stockitem_owner = models.ForeignKey(
StockItem, related_name="shopping_item", null=True, on_delete=models.CASCADE
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)
name = models.CharField(_("name"), max_length=64)
type = models.ForeignKey(
ProductType,
related_name="shoppinglist_items",
verbose_name=_("type"),
null=True,
blank=True,
on_delete=models.SET_NULL,
)
tobuy_quantity = models.IntegerField(
_("quantity to buy"),
default=6,
help_text=_("quantity to buy during the next shopping session"),
)
bought_quantity = models.IntegerField(
_("quantity bought"),
default=0,
help_text=_("quantity bought during the last shopping session"),
)
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def __str__(self):
return "%s - %s" % (self.name, self.shopping_lists.first())
def can_be_viewed_by(self, user):
return user.is_in_group(pk=settings.SITH_GROUP_COUNTER_ADMIN_ID)
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def get_absolute_url(self):
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return reverse("stock:shoppinglist_list")