added first public views - no check for access rights at the moment

lib/core/db/models/mixins.py

@@ -0,0 +1,35 @@
+from django.contrib.auth.models import User
+from django.db import models
+
+from lib.middleware.current_user import get_current_user
+
+
+class DateAware(models.Model):
+    class Meta:
+        abstract = True
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+
+class AuthorAware(models.Model):
+    class Meta:
+        abstract = True
+
+    author = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, default=get_current_user)
+
+
+class DescriptionAware(models.Model):
+    class Meta:
+        abstract = True
+
+    description = models.TextField(null=True, blank=True)
+
+
+class NameAware(models.Model):
+    class Meta:
+        abstract = True
+
+    name = models.CharField(max_length=100, unique=True, db_index=True)
+
+