Refactor database models to majorly increase queries needed and decrease load times of home from 30 secs to 5 sec (we will be caching the rest to decrease even further via background tasks)

trades/models.py

@@ -7,30 +7,18 @@ from accounts.models import FriendCode
 class TradeOfferManager(models.Manager):
 
     def get_queryset(self):
-        queryset = super().get_queryset().select_related("initiated_by", "initiated_by__user", "rarity")
-        queryset = queryset.prefetch_related(
-            Prefetch(
-                "trade_offer_want_cards",
-                queryset=TradeOfferWantCard.objects.select_related("card").prefetch_related('card__decks').annotate(
-                    total_quantity=Sum("quantity"),
-                    total_accepted=Sum("qty_accepted")
-                ).order_by("total_quantity", "id")
-            ),
-            Prefetch(
-                "trade_offer_have_cards",
-                queryset=TradeOfferHaveCard.objects.select_related("card").prefetch_related('card__decks').annotate(
-                    total_quantity=Sum("quantity"),
-                    total_accepted=Sum("qty_accepted")
-                ).order_by("total_quantity", "id")
-            ),
-            Prefetch(
-                "acceptances",
-                queryset=TradeAcceptance.objects.select_related("accepted_by", "accepted_by__user", "requested_card", "offered_card")
-            ),
+        queryset = super().get_queryset().select_related(
+            "initiated_by__user",
+        ).prefetch_related(
+            "trade_offer_have_cards__card",
+            "trade_offer_want_cards__card",
+            "acceptances",
+            "acceptances__requested_card",
+            "acceptances__offered_card",
+            "acceptances__accepted_by__user",
         ).order_by("-updated_at")
         return queryset
 
-
 class TradeOffer(models.Model):
     objects = TradeOfferManager()
 
@@ -42,14 +30,8 @@ class TradeOffer(models.Model):
         on_delete=models.PROTECT,
         related_name='initiated_trade_offers'
     )
-    rarity = models.ForeignKey(
-        "cards.Rarity",
-        on_delete=models.PROTECT,
-        null=True,
-        blank=True,
-        editable=False,
-        db_index=True
-    )
+    rarity_icon = models.CharField(max_length=8, null=True)
+    rarity_level = models.IntegerField(null=True)
     want_cards = models.ManyToManyField(
         "cards.Card",
         related_name='trade_offers_want',