Add ReviewEvent model and ReviewSubmissionService for review management

- Created a new ReviewEvent model to track review events with fields for content, rating, moderation status, and timestamps.
- Added ForeignKey relationships to connect ReviewEvent with ContentSubmission, User, and Review.
- Implemented ReviewSubmissionService to handle review submissions, including creation, updates, and moderation workflows.
- Introduced atomic transactions to ensure data integrity during review submissions and updates.
- Added logging for review submission and moderation actions for better traceability.
- Implemented validation to prevent duplicate reviews and ensure only the review owner can update their review.

django/apps/reviews/models.py

@@ -4,8 +4,10 @@ from django.conf import settings
 from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation
 from django.contrib.contenttypes.models import ContentType
 from model_utils.models import TimeStampedModel
+import pghistory
 
 
+@pghistory.track()
 class Review(TimeStampedModel):
     """
     User reviews for parks or rides.
@@ -90,6 +92,16 @@ class Review(TimeStampedModel):
         related_name='moderated_reviews'
     )
     
+    # Link to ContentSubmission (Sacred Pipeline integration)
+    submission = models.ForeignKey(
+        'moderation.ContentSubmission',
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name='reviews',
+        help_text="ContentSubmission that created this review"
+    )
+    
     # Photos related to this review (via media.Photo model with generic relation)
     photos = GenericRelation('media.Photo')
     
@@ -124,24 +136,6 @@ class Review(TimeStampedModel):
     def is_pending(self):
         """Check if review is pending moderation."""
         return self.moderation_status == self.MODERATION_PENDING
-    
-    def approve(self, moderator, notes=''):
-        """Approve the review."""
-        from django.utils import timezone
-        self.moderation_status = self.MODERATION_APPROVED
-        self.moderated_by = moderator
-        self.moderated_at = timezone.now()
-        self.moderation_notes = notes
-        self.save()
-    
-    def reject(self, moderator, notes=''):
-        """Reject the review."""
-        from django.utils import timezone
-        self.moderation_status = self.MODERATION_REJECTED
-        self.moderated_by = moderator
-        self.moderated_at = timezone.now()
-        self.moderation_notes = notes
-        self.save()
 
 
 class ReviewHelpfulVote(TimeStampedModel):