Add history tracking functionality using django-pghistory; implement views, templates, and middleware for event serialization and context management

core/middleware.py

@@ -0,0 +1,14 @@
+import pghistory
+
+def setup_pghistory_context():
+    """
+    Set up pghistory context middleware to track request information.
+    This function configures what contextual information is stored
+    with each history record.
+    """
+    pghistory.context(lambda request: {
+        'user': str(request.user) if request.user.is_authenticated else None,
+        'ip': request.META.get('REMOTE_ADDR'),
+        'user_agent': request.META.get('HTTP_USER_AGENT'),
+        'session_key': request.session.session_key
+    })

core/models.py

@@ -2,6 +2,18 @@ from django.db import models
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.contrib.contenttypes.models import ContentType
 from django.utils.text import slugify
+import pghistory
+
+@pghistory.track()
+class HistoricalModel(models.Model):
+    """
+    Abstract base model that provides universal history tracking via django-pghistory.
+    """
+    class Meta:
+        abstract = True
+
+    def save(self, *args, **kwargs):
+        return super().save(*args, **kwargs)
 
 class SlugHistory(models.Model):
     """
@@ -26,9 +38,11 @@ class SlugHistory(models.Model):
     def __str__(self):
         return f"Old slug '{self.old_slug}' for {self.content_object}"
 
-class SluggedModel(models.Model):
+@pghistory.track()
+class SluggedModel(HistoricalModel):
     """
     Abstract base model that provides slug functionality with history tracking.
+    Inherits from HistoricalModel to get universal history tracking.
     """
     name = models.CharField(max_length=200)
     slug = models.SlugField(max_length=200, unique=True)
@@ -55,6 +69,7 @@ class SluggedModel(models.Model):
         if not self.slug:
             self.slug = slugify(self.name)
 
+        # Call HistoricalModel's save to ensure history tracking
         super().save(*args, **kwargs)
 
     def get_id_field_name(self):