from django.db import models from django.contrib.auth.models import User from simple_history.models import HistoricalRecords from django.core.validators import MinValueValidator from preferences.models import PaymentMethod from django.core.exceptions import ValidationError class Category(models.Model): """ A product category """ class Meta: verbose_name="Catégorie" name = models.CharField(max_length=100, verbose_name="Nom", unique=True) order = models.IntegerField(default=0) """ The name of the category """ def __str__(self): return self.name @property def active_products(self): """ Return active producs of this category """ return self.product_set.filter(is_active=True) class Product(models.Model): """ Stores a product. """ DRAFT_NONE = 0 DRAFT_PINTE = 1 DRAFT_DEMI = 2 DRAFT_GALOPIN = 3 DRAFT_TYPES = ( (DRAFT_NONE, "Pas une bière pression"), (DRAFT_PINTE, "Pinte"), (DRAFT_DEMI, "Demi"), (DRAFT_GALOPIN, "Galopin"), ) class Meta: verbose_name = "Produit" name = models.CharField(max_length=255, verbose_name="Nom", unique=True) """ The name of the product. """ amount = models.DecimalField(max_digits=5, decimal_places=2, verbose_name="Prix de vente", validators=[MinValueValidator(0)]) """ The price of the product. """ stock = models.IntegerField(default=0, verbose_name="Stock") """ Number of product """ category = models.ForeignKey('Category', on_delete=models.PROTECT, verbose_name="Catégorie") """ The category of the product """ needQuantityButton = models.BooleanField(default=False, verbose_name="Bouton quantité") """ If True, a javascript quantity button will be displayed """ is_active = models.BooleanField(default=True, verbose_name="Actif") """ If True, will be displayed on the :func:`gestion.views.manage` view. """ volume = models.PositiveIntegerField(default=0) """ The volume, if relevant, of the product """ deg = models.DecimalField(default=0,max_digits=5, decimal_places=2, verbose_name="Degré", validators=[MinValueValidator(0)]) """ Degree of alcohol, if relevant """ adherentRequired = models.BooleanField(default=True, verbose_name="Adhérent requis") """ If True, only adherents will be able to buy this product """ showingMultiplier = models.PositiveIntegerField(default=1) """ On the graphs on :func:`users.views.profile` view, the number of total consumptions is divised by the showingMultiplier """ draft_category = models.IntegerField(choices=DRAFT_TYPES, default=DRAFT_NONE, verbose_name="Type de pression") history = HistoricalRecords() def __str__(self): if self.draft_category == self.DRAFT_NONE: return self.name + " (" + str(self.amount) + " €)" else: return self.name + " (" + str(self.amount) + " €, " + str(self.deg) + "°)" def user_ranking(self, pk): """ Return the user ranking for the product """ user = User.objects.get(pk=pk) consumptions = Consumption.objects.filter(customer=user).filter(product=self) if consumptions: return (user, consumptions[0].quantity) else: return (user, 0) @property def ranking(self): """ Get the first 25 users with :func:`~gestion.models.user_ranking` """ users = User.objects.all() ranking = [self.user_ranking(user.pk) for user in users] ranking.sort(key=lambda x:x[1], reverse=True) return ranking[0:25] def isPinte(id): product = Product.objects.get(id=id) if product.draft_category != Product.DRAFT_PINTE: raise ValidationError( ('%(product)s n\'est pas une pinte'), params={'product': product}, ) def isDemi(id): product = Product.objects.get(id=id) if product.draft_category != Product.DRAFT_DEMI: raise ValidationError( ('%(product)s n\'est pas un demi'), params={'product': product}, ) def isGalopin(id): product = Product.objects.get(id=id) if product.draft_category != Product.DRAFT_GALOPIN: raise ValidationError( ('%(product)s n\'est pas un galopin'), params={'product': product}, ) class Keg(models.Model): """ Stores a keg. """ class Meta: verbose_name = "Fût" permissions = ( ("open_keg", "Peut percuter les fûts"), ("close_keg", "Peut fermer les fûts") ) name = models.CharField(max_length=255, unique=True, verbose_name="Nom") """ The name of the keg. """ stockHold = models.IntegerField(default=0, verbose_name="Stock en soute") """ The number of this keg in the hold. """ amount = models.DecimalField(max_digits=7, decimal_places=2, verbose_name="Prix du fût", validators=[MinValueValidator(0)]) """ The price of the keg. """ capacity = models.IntegerField(default=30, verbose_name="Capacité (L)") """ The capacity, in liters, of the keg. """ pinte = models.ForeignKey(Product, on_delete=models.PROTECT, related_name="futp", validators=[isPinte]) """ The related :class:`~gestion.models.Product` for pint. """ demi = models.ForeignKey(Product, on_delete=models.PROTECT, related_name="futd", validators=[isDemi]) """ The related :class:`~gestion.models.Product` for demi. """ galopin = models.ForeignKey(Product, on_delete=models.PROTECT, related_name="futg", validators=[isGalopin],null=True, blank=True) """ The related :class:`~gestion.models.Product` for galopin. """ is_active = models.BooleanField(default=False, verbose_name="Actif") """ If True, will be displayed on :func:`~gestion.views.manage` view """ history = HistoricalRecords() def __str__(self): return self.name class KegHistory(models.Model): """ Stores a keg history, related to :class:`~gestion.models.Keg`. """ class Meta: verbose_name = "Historique de fût" keg = models.ForeignKey(Keg, on_delete=models.PROTECT, verbose_name="Fût") """ The :class:`~gestion.models.Keg` instance. """ openingDate = models.DateTimeField(auto_now_add=True, verbose_name="Date ouverture") """ The date when the keg was opened. """ quantitySold = models.DecimalField(decimal_places=2, max_digits=5, default=0, verbose_name="Quantité vendue") """ The quantity, in liters, sold. """ amountSold = models.DecimalField(decimal_places=2, max_digits=5, default=0, verbose_name="Somme vendue") """ The quantity, in euros, sold. """ closingDate = models.DateTimeField(null=True, blank=True, verbose_name="Date fermeture") """ The date when the keg was closed """ isCurrentKegHistory = models.BooleanField(default=True, verbose_name="Actuel") """ If True, it corresponds to the current Keg history of :class:`~gestion.models.Keg` instance. """ history = HistoricalRecords() def __str__(self): res = "Fût de " + str(self.keg) + " (" + str(self.openingDate) + " - " if(self.closingDate): res += str(self.closingDate) + ")" else: res += "?)" return res class Reload(models.Model): """ Stores reloads. """ class Meta: verbose_name = "Rechargement" customer = models.ForeignKey(User, on_delete=models.PROTECT, related_name="reload_taken", verbose_name="Client") """ Client (:class:`django.contrib.auth.models.User`). """ amount = models.DecimalField(max_digits=7, decimal_places=2, verbose_name="Montant", validators=[MinValueValidator(0)]) """ Amount of the reload. """ PaymentMethod = models.ForeignKey(PaymentMethod, on_delete=models.PROTECT, verbose_name="Moyen de paiement") """ :class:`Payment Method ` of the reload. """ coopeman = models.ForeignKey(User, on_delete=models.PROTECT, related_name="reload_realized") """ Coopeman (:class:`django.contrib.auth.models.User`) who collected the reload. """ date = models.DateTimeField(auto_now_add=True) """ Date of the reload. """ history = HistoricalRecords() def __str__(self): return "Rechargement effectue par {0} le {1} ({2} euros, coopeman : {3})".format(self.customer, self.date, self.amount, self.coopeman) class Refund(models.Model): """ Stores refunds. """ class Meta: verbose_name = "Remboursement" date = models.DateTimeField(auto_now_add=True) """ Date of the refund """ customer = models.ForeignKey(User, on_delete=models.PROTECT, related_name="refund_taken", verbose_name="Client") """ Client (:class:`django.contrib.auth.models.User`). """ amount = models.DecimalField(max_digits=7, decimal_places=2, verbose_name="Montant", validators=[MinValueValidator(0)]) """ Amount of the refund. """ coopeman = models.ForeignKey(User, on_delete=models.PROTECT, related_name="refund_realized") """ Coopeman (:class:`django.contrib.auth.models.User`) who realized the refund. """ history = HistoricalRecords() def __str__(self): return "{0} remboursé de {1} le {2} (effectué par {3})".format(self.customer, self.amount, self.date, self.coopeman) class Menu(models.Model): """ Stores menus. """ name = models.CharField(max_length=255, verbose_name="Nom") """ Name of the menu. """ amount = models.DecimalField(max_digits=7, decimal_places=2, verbose_name="Montant", validators=[MinValueValidator(0)]) """ Price of the menu. """ articles = models.ManyToManyField(Product, verbose_name="Produits") """ Stores :class:`Products ` contained in the menu """ is_active = models.BooleanField(default=False, verbose_name="Actif") """ If True, the menu will be displayed on the :func:`gestion.views.manage` view """ history = HistoricalRecords() def __str__(self): return self.name @property def adherent_required(self): """ Test if the menu contains a restricted :class:`~gestion.models.Product` """ res = False for article in self.articles.all(): res = res or article.adherentRequired return res class MenuHistory(models.Model): """ Stores MenuHistory related to :class:`~gestion.models.Menu`. """ class Meta: verbose_name = "Historique de menu" customer = models.ForeignKey(User, on_delete=models.PROTECT, related_name="menu_taken", verbose_name="Client") quantity = models.PositiveIntegerField(default=0, verbose_name="Quantité") """ Client (:class:`django.contrib.auth.models.User`). """ paymentMethod = models.ForeignKey(PaymentMethod, on_delete=models.PROTECT, verbose_name="Moyen de paiement") """ :class:`Payment Method ` of the Menu purchased. """ date = models.DateTimeField(auto_now_add=True) """ Date of the purhcase. """ menu = models.ForeignKey(Menu, on_delete=models.PROTECT) """ :class:`gestion.models.Menu` purchased. """ amount = models.DecimalField(max_digits=7, decimal_places=2, default=0, verbose_name="Montant") """ Price of the purchase. """ coopeman = models.ForeignKey(User, on_delete=models.PROTECT, related_name="menu_selled") """ Coopeman (:class:django.contrib.auth.models.User`) who collected the money. """ history = HistoricalRecords() def __str__(self): return "{2} a consommé {0} {1}".format(self.quantity, self.menu, self.customer) class ConsumptionHistory(models.Model): """ Stores consumption history related to Product """ class Meta: verbose_name = "Consommation" customer = models.ForeignKey(User, on_delete=models.PROTECT, related_name="consumption_taken", verbose_name="Client") """ Client (:class:`django.contrib.auth.models.User`). """ quantity = models.PositiveIntegerField(default=0, verbose_name="Quantité") """ Quantity of :attr:`gestion.models.ConsumptionHistory.product` taken. """ paymentMethod = models.ForeignKey(PaymentMethod, on_delete=models.PROTECT, verbose_name="Moyen de paiement") """ :class:`Payment Method ` of the product purchased. """ date = models.DateTimeField(auto_now_add=True) """ Date of the purhcase. """ product = models.ForeignKey(Product, on_delete=models.PROTECT, verbose_name="Produit") """ :class:`gestion.models.product` purchased. """ amount = models.DecimalField(max_digits=7, decimal_places=2, default=0, verbose_name="Montant") """ Price of the purchase. """ coopeman = models.ForeignKey(User, on_delete=models.PROTECT, related_name="consumption_selled") """ Coopeman (:class:django.contrib.auth.models.User`) who collected the money. """ history = HistoricalRecords() def __str__(self): return "{0} {1} consommé par {2} le {3} (encaissé par {4})".format(self.quantity, self.product, self.customer, self.date, self.coopeman) class Consumption(models.Model): """ Stores total consumptions. """ class Meta: verbose_name = "Consommation totale" customer = models.ForeignKey(User, on_delete=models.PROTECT, related_name="consumption_global_taken", verbose_name="Client") """ Client (:class:`django.contrib.auth.models.User`). """ product = models.ForeignKey(Product, on_delete=models.PROTECT, verbose_name="Produit") """ A :class:`gestion.models.Product` instance. """ quantity = models.PositiveIntegerField(default=0, verbose_name="Quantité") """ The total number of :attr:`gestion.models.Consumption.product` consumed by the :attr:`gestion.models.Consumption.consumer`. """ history = HistoricalRecords() def __str__(self): return "Consommation de " + str(self.customer) + " concernant le produit " + str(self.product) class Pinte(models.Model): """ Stores a physical pinte """ current_owner = models.ForeignKey(User, on_delete=models.PROTECT, null=True, default=None, related_name="pintes_owned_currently") """ The current owner (:class:`django.contrib.auth.models.User`). """ previous_owner = models.ForeignKey(User, on_delete=models.PROTECT, null=True, default=None, related_name="pintes_owned_previously") """ The previous owner (:class:`django.contrib.auth.models.User`). """ last_update_date = models.DateTimeField(auto_now=True) """ The last update date """ history = HistoricalRecords()