Добавлен класс DescriptionMixin

net/xeaf/rack/models/mixins/__init__.py

@@ -10,6 +10,7 @@
 
 from .created_at_mixin import CreatedAtMixin
 from .deleted_at_mixin import DeletedAtMixin
+from .description_mixin import DescriptionMixin
 from .expired_at_mixin import ExpiresAtMixin
 from .slug_mixin import SlugMixin
 from .updated_at_mixin import UpdatedAtMixin

net/xeaf/rack/models/mixins/description_mixin.py

@@ -0,0 +1,34 @@
+# DRF Rack
+# Библиотека классов расширений для Django REST Framework
+#
+# Автор: Николай В. Анохин <n.anokhin@xeaf.net>
+# Все права защищены. Лицензия: MIT
+
+"""
+Описание класса DescriptionMixin
+"""
+
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+
+class DescriptionMixin(models.Model):
+    """
+    Добавляет к модели свойство Описание
+    """
+
+    description = models.TextField(
+        max_length=2048,
+        editable=True,
+        blank=True,
+        null=True,
+        verbose_name=_("rack.mixin.description"),
+    )
+    """ Описание """
+
+    class Meta:
+        """
+        Конфигурация класс
+        """
+
+        abstract = True

net/xeaf/rack/tests/models/mixins/__init__.py

@@ -10,6 +10,7 @@
 
 from .created_at_mixin_tests import CreatedAtMixinTests
 from .deleted_at_mixin_tests import DeletedAtMixinTests
+from .description_mixin_tests import DescriptionMixinTests
 from .expired_at_mixin_tests import ExpiresAtMixinTests
 from .slug_mixin_tests import SlugMixinTests
 from .updated_at_mixin_tests import UpdatedAtMixinTests

net/xeaf/rack/tests/models/mixins/description_mixin_tests.py

@@ -0,0 +1,59 @@
+# DRF Rack
+# Библиотека классов расширений для Django REST Framework
+#
+# Автор: Николай В. Анохин <n.anokhin@xeaf.net>
+# Все права защищены. Лицензия: MIT
+
+"""
+Описание класса DescriptionMixinTests
+"""
+
+from django.db import connection
+from django.db import models
+from django.test import TransactionTestCase
+
+from net.xeaf.rack.models.mixins import DescriptionMixin
+
+
+class DescriptionMixinTests(TransactionTestCase):
+    """
+    Тесты для миксина DescriptionMixin
+    """
+
+    def setUp(self):
+        """
+        Создаем тестовую модель и таблицу для каждого теста
+        """
+
+        with connection.cursor() as cursor:
+            cursor.execute('PRAGMA foreign_keys = OFF;')
+
+        class TestDescriptionModel(DescriptionMixin):
+            name = models.CharField(max_length=100)
+
+            class Meta:
+                app_label = 'test'
+                db_table = 'test_slug_mixin'
+
+        self.TestModel = TestDescriptionModel
+
+        with connection.schema_editor() as editor:
+            editor.create_model(TestDescriptionModel)
+
+    def tearDown(self):
+        """
+        Удаляем таблицу после каждого теста
+        """
+
+        with connection.schema_editor() as editor:
+            editor.delete_model(self.TestModel)
+
+        with connection.cursor() as cursor:
+            cursor.execute('PRAGMA foreign_keys = ON;')
+
+    def test_description_field_exists(self):
+        """
+        Проверяем, что поле description добавлено в модель
+        """
+
+        self.assertTrue(hasattr(self.TestModel, 'description'))