Models created: Product, OnlineProduct (proxy), ProductType, ProductSubtype

apps/product/models.py

@@ -1,63 +1,110 @@
-# from django.contrib.postgres.fields import JSONField
-# from django.db import models
-# from django.utils.translation import gettext_lazy as _
-#
-# from utils.models import BaseAttributes
-#
-#
-# class ProductManager(models.Manager):
-#     """Product manager."""
-#
-#
-# class ProductQuerySet(models.QuerySet):
-#     """Product queryset."""
-#
-#
-# class Product(BaseAttributes):
-#     """Product models."""
-#     name = models.CharField(_('name'), max_length=255)
-#     country = models.ForeignKey('location.Country', on_delete=models.CASCADE)
-#     region = models.ForeignKey('location.Region', on_delete=models.CASCADE)
-#     # ASK: What is the "subregion"
-#
-#     description = JSONField(_('description'))
-#     characteristics = JSONField(_('characteristics'))
-#     metadata_values = JSONField(_('metadata_values'))
-#     # common_relations_id
-#     # product_region_id
-#     code = models.CharField(_('code'), max_length=255)
-#     available = models.BooleanField(_('available'))
-#
-#     # dealer_type
-#     # target_scope
-#     # target_type
-#     # rank
-#     # excluding_tax_unit_price
-#     # column_21
-#     # currencies_id
-#     # vintage
-#     # producer_price
-#     # producer_description
-#     # annual_produced_quantity
-#     # production_method_description
-#     # unit_name
-#     # unit
-#     # unit_values
-#     # organic_source
-#     # certificates
-#     # establishments_id
-#     # restrictions
-#     #
-#     objects = ProductManager.from_queryset(ProductQuerySet)()
-#
-#     class Meta:
-#         verbose_name = _('product')
-#         verbose_name_plural = _('products')
-#
-#
-# class ProductType(models.Model):
-#     """ProductType model."""
-#
-#     class Meta:
-#         verbose_name_plural = _('product types')
-#         verbose_name = _('product type')
+"""Product app models."""
+from django.db import models
+from django.contrib.postgres.fields import JSONField
+from django.utils.translation import gettext_lazy as _
+from utils.models import (BaseAttributes, ProjectBaseMixin,
+                          TranslatedFieldsMixin, TJSONField)
+
+
+class ProductType(TranslatedFieldsMixin, ProjectBaseMixin):
+    """ProductType model."""
+
+    name = TJSONField(blank=True, null=True, default=None,
+                      verbose_name=_('Name'), help_text='{"en-GB":"some text"}')
+    index_name = models.CharField(max_length=50, unique=True, db_index=True,
+                                  verbose_name=_('Index name'))
+    use_subtypes = models.BooleanField(_('Use subtypes'), default=True)
+
+    class Meta:
+        """Meta class."""
+
+        verbose_name = _('Product type')
+        verbose_name_plural = _('Product types')
+
+
+class ProductSubType(TranslatedFieldsMixin, ProjectBaseMixin):
+    """ProductSubtype model."""
+
+    product_type = models.ForeignKey(ProductType, on_delete=models.CASCADE,
+                                     related_name='subtypes',
+                                     verbose_name=_('Product type'))
+    name = TJSONField(blank=True, null=True, default=None,
+                      verbose_name=_('Name'), help_text='{"en-GB":"some text"}')
+    index_name = models.CharField(max_length=50, unique=True, db_index=True,
+                                  verbose_name=_('Index name'))
+
+    class Meta:
+        """Meta class."""
+
+        verbose_name = _('Product type')
+        verbose_name_plural = _('Product types')
+
+
+class ProductManager(models.Manager):
+    """Extended manager for Product model."""
+
+
+class ProductQuerySet(models.QuerySet):
+    """Product queryset."""
+
+    def common(self):
+        return self.filter(category=self.model.COMMON)
+
+    def online(self):
+        return self.filter(category=self.model.ONLINE)
+
+
+class Product(TranslatedFieldsMixin, BaseAttributes):
+    """Product models."""
+
+    COMMON = 0
+    ONLINE = 1
+
+    CATEGORY_CHOICES = (
+        (COMMON, _('Common')),
+        (ONLINE, _('Online')),
+    )
+
+    category = models.PositiveIntegerField(choices=CATEGORY_CHOICES,
+                                           default=COMMON)
+    name = TJSONField(_('Name'), null=True, blank=True, default=None,
+                      help_text='{"en-GB":"some text"}')
+    description = TJSONField(_('Description'), null=True, blank=True,
+                             default=None, help_text='{"en-GB":"some text"}')
+    characteristics = JSONField(_('Characteristics'))
+    country = models.ForeignKey('location.Country', on_delete=models.PROTECT,
+                                verbose_name=_('Country'))
+    available = models.BooleanField(_('Available'), default=True)
+    type = models.ForeignKey(ProductType, on_delete=models.PROTECT,
+                             related_name='products', verbose_name=_('Type'))
+    subtypes = models.ManyToManyField(ProductSubType, related_name='products',
+                                      verbose_name=_('Subtypes'))
+
+    objects = ProductManager.from_queryset(ProductQuerySet)()
+
+    class Meta:
+        """Meta class."""
+
+        verbose_name = _('Product')
+        verbose_name_plural = _('Products')
+
+
+class OnlineProductManager(ProductManager):
+    """Extended manger for OnlineProduct model."""
+
+    def get_queryset(self):
+        """Overrided get_queryset method."""
+        return super().get_queryset().online()
+
+
+class OnlineProduct(Product):
+    """Online product."""
+
+    objects = OnlineProductManager.from_queryset(ProductQuerySet)()
+
+    class Meta:
+        """Meta class."""
+
+        proxy = True
+        verbose_name = _('Online product')
+        verbose_name_plural = _('Online products')

project/settings/base.py

@@ -64,7 +64,7 @@ PROJECT_APPS = [
     'news.apps.NewsConfig',
     'notification.apps.NotificationConfig',
     'partner.apps.PartnerConfig',
-    'product.apps.ProductConfig',
+    # 'product.apps.ProductConfig', Uncomment after refining task and create migrations
     'recipe.apps.RecipeConfig',
     'search_indexes.apps.SearchIndexesConfig',
     'translation.apps.TranslationConfig',