feature/BE-32 : User History

App/backend/api/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.1.2 on 2022-12-09 09:21
+# Generated by Django 4.1.2 on 2022-12-10 20:41
 
 from django.conf import settings
 import django.contrib.auth.models

App/backend/api/models/user.py

@@ -56,7 +56,8 @@ def changeOTP(self, *args, **kwargs):
         return code_string
 
     def __str__(self):
-        return self.name + " " + self.surname 
+        return "User: " + self.name + " " + self.surname 
+
 
     @property
     def get_followers(self):

App/backend/api/views/artitem.py

@@ -21,6 +21,8 @@
 
 
 from drf_yasg import openapi
+from history.decorators import object_viewed_decorator
+from history.signals import object_viewed_signal
 
 # List of routes / method / action:
 #
@@ -248,6 +250,7 @@ def delete_artitem(request, id):
         ),
     }
 )
+#@object_viewed_decorator()
 @api_view(["GET"])
 def artitems_by_id(request, id):
     if request.method == "GET":
@@ -256,12 +259,16 @@ def artitems_by_id(request, id):
             data = ArtItemSerializer(artitem).data.copy()
             if(isinstance(request.user, AnonymousUser)):
                 data["isLiked"] = False
+                #print("anonymous")
             else:
                 try:
                     LikeArtItem.objects.get(user=request.user, artitem=artitem)
                     data["isLiked"] = True
                 except:
                     data["isLiked"] = False
+                #print("not anonymous")
+                instance = artitem
+                object_viewed_signal.send(instance.__class__, instance=instance, request=request)
             return Response(data, status=status.HTTP_200_OK)
         except ArtItem.DoesNotExist:
             return Response({"Not Found": "Any art item with the given ID doesn't exist."}, status=status.HTTP_404_NOT_FOUND)

App/backend/api/views/profile.py

@@ -14,6 +14,7 @@
 from ..utils import ProfileImageStorage
 from ..models.user import Follow
 
+from history.signals import object_viewed_signal
 
 @ swagger_auto_schema(
     method='get',
@@ -66,6 +67,9 @@ def profile_api(request, id):
                     data["isFollowed"] = True
                 except:
                     data["isFollowed"] = False
+
+                instance = user
+                object_viewed_signal.send(User, instance=instance, request=request)
 
             return Response(data, status=status.HTTP_200_OK)
         except User.DoesNotExist:

App/backend/backend/settings/base.py

@@ -42,6 +42,7 @@
     'corsheaders',
     'mptt',
     'django_extensions',
+    'history',
 ]
 
 MIDDLEWARE = [

App/backend/history/admin.py

@@ -0,0 +1,5 @@
+from django.contrib import admin
+from .models import History
+
+# Register your models here.
+admin.site.register(History)

App/backend/history/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class HistoryConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'history'

App/backend/history/decorators.py

@@ -0,0 +1,74 @@
+import functools
+from django.shortcuts import redirect
+from django.http import HttpResponseBadRequest
+from .signals import object_viewed_signal
+from api.models.artitem import ArtItem
+
+from functools import wraps
+from django.contrib import messages
+from django.shortcuts import redirect
+from django.http import HttpResponse
+from django.contrib.auth.models import AnonymousUser
+
+# def object_viewed_decorator(function, request):
+
+#     if request.user.is_authenticated:
+#         # We do not apply the decorator to the function
+#         return function
+#     else:
+#         # We apply the decorator and return the new function
+#         return newrelic.agent.function_trace()(function)
+
+def bject_viewed_decorator(view_func):
+    @functools.wraps(view_func)
+    def wrapper(request, *args, **kwargs):
+        if request.user.is_authenticated:
+            try:
+                instance = view_func.get_object()
+            except view_func.model.DoesNotExist:
+                instance = None
+            object_viewed_signal.send(instance.__class__, instance=instance, request=request)
+            return view_func(request, *args, **kwargs)
+        return view_func(request, *args, **kwargs)  
+    return wrapper
+
+def auth_test_function(user):
+    if user.is_authenticated:
+        return True
+    return False
+
+def object_viewed_decorator():
+    def decorator(view):
+        @wraps(view)
+        def _wrapped_view(request, *args, **kwargs):
+            if(isinstance(request.user, AnonymousUser)):
+                pass
+            else:
+                try:
+                    artitem = ArtItem.objects.get(pk=kwargs["id"])
+                    instance = artitem
+                    object_viewed_signal.send(instance.__class__, instance=instance, request=request)
+
+                   # instance = view.get_object()
+                except view.model.DoesNotExist:
+                    instance = None
+                return view(request, *args, **kwargs)
+
+            # if not auth_test_function(request.user):
+            #     print("came 3")
+            #     print(kwargs["id"])
+            #     try:
+            #         artitem = ArtItem.objects.get(pk=kwargs["id"])
+            #         instance = artitem
+            #         object_viewed_signal.send(instance.__class__, instance=instance, request=request)
+
+            #        # instance = view.get_object()
+            #     except view.model.DoesNotExist:
+            #         instance = None
+            #     #object_viewed_signal.send(instance.__class__, instance=instance, request=request)
+            #     print("came here")
+            #     return view(request, *args, **kwargs)
+            return view(request, *args, **kwargs)
+
+        return _wrapped_view
+    return decorator

App/backend/history/migrations/0001_initial.py

@@ -0,0 +1,31 @@
+# Generated by Django 4.1.2 on 2022-12-14 20:05
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('contenttypes', '0002_remove_content_type_name'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='History',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('object_id', models.PositiveIntegerField()),
+                ('viewed_on', models.DateTimeField(auto_now_add=True)),
+                ('content_type', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='contenttypes.contenttype')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'verbose_name_plural': 'Histories',
+            },
+        ),
+    ]

App/backend/history/models.py

@@ -0,0 +1,31 @@
+from django.db import models
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.conf import settings
+
+from .signals import object_viewed_signal
+
+User = settings.AUTH_USER_MODEL
+
+class History(models.Model):
+    user            = models.ForeignKey(User, on_delete=models.CASCADE)
+    content_type    = models.ForeignKey(ContentType, on_delete=models.SET_NULL, null=True) #ArtItem, UserProfile
+    object_id       = models.PositiveIntegerField()
+    content_object  = GenericForeignKey() #the actual object
+    viewed_on       = models.DateTimeField(auto_now_add=True)
+
+    def __str__(self):
+        return "%s viewed: on %s by %s" %(self.content_object, self.viewed_on, self.user)
+
+    class Meta:
+        verbose_name_plural = "Histories"
+
+
+def object_viewed_receiver(sender, instance, request, *args, **kwargs):
+    new_history         = History.objects.create(
+        user            =  request.user,
+        content_type    = ContentType.objects.get_for_model(sender),
+        object_id       = instance.id,
+    )
+
+object_viewed_signal.connect(object_viewed_receiver)

App/backend/history/signals.py

@@ -0,0 +1,4 @@
+from django.dispatch import Signal
+
+
+object_viewed_signal = Signal()

App/backend/history/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

App/backend/history/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.