initial commit on modified activities class

kerckhoff/activities/admin.py

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+from django.contrib import admin
+
+# Register your models here.

kerckhoff/activities/apps.py

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+from django.apps import AppConfig
+
+
+class ActivitiesConfig(AppConfig):
+    name = 'activities'

kerckhoff/activities/models.py

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+from enum import Enum
+
+from django.contrib.postgres.fields import JSONField, ArrayField
+from django.dispatch import receiver
+from packages.models import PackageVersion
+
+from .signals import package_updated, package_created
+
+class ActivityType(Enum):
+    PACKAGE_UPDATED: 'package_updated'
+    PACKAGE_CREATED: 'package_created'
+
+# Notes
+    # **kwargs allows you to handle named arguments that you have not defined
+    # in advance
+
+    # the create method "creates" and "saves" the object in a single step
+
+    # enum AcitivityType class created for cleaner code
+
+class Activities(models.Model):
+    # a dict that logs user actions
+    user = models.ForeignKey(User)
+    action = JSONField(blank=True, default=dict, null=True)
+
+    # post_save is a signal that triggers this func log
+    @receiver(post_save, sender=PackageVersion)
+    def log(sender, instance: PackageVersion, created, **kwargs):
+        if created:
+            Activities.objects.create(user=instance.creator, action={
+                "event_type": ActivityType.PACKAGE_CREATED,
+                "data": {
+                    "package_id": instance.package,
+                    "commit_message": instance.version_description
+                }
+            })
+        else:
+            Activities.objects.create(user=instance.creator, action={
+                "event_type": ActivityType.PACKAGE_UPDATED,
+                "data": {
+                    "package_id": instance.package,
+                    "commit_message": instance.version_description
+                }
+            })

kerckhoff/activities/signals.py

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+import django.dispatch
+
+package_updated = django.dispatch.Signal(providing_args=["user, package"])
+package_created = django.dispatch.Signal(providing_args=["user, pacakge"])

kerckhoff/activities/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

kerckhoff/activities/views.py

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+from django.shortcuts import render
+
+# Create your views here.