Fix events: use cart-mini fragment instead of local cart template

Events was trying to render _types/cart/_mini.html locally, which only
exists in the cart service. Replace with fetch_fragment("cart", "cart-mini")
calls and add oob param support to the cart-mini fragment.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cart/bp/fragments/routes.py

@@ -32,7 +32,8 @@ def register():
             g.s, user_id=user_id, session_id=session_id,
         )
         count = summary.count + summary.calendar_count + summary.ticket_count
-        return await render_template("fragments/cart_mini.html", cart_count=count)
+        oob = request.args.get("oob", "")
+        return await render_template("fragments/cart_mini.html", cart_count=count, oob=oob)
 
     async def _account_nav_item():
         from shared.infrastructure.urls import cart_url

cart/templates/fragments/cart_mini.html

@@ -1,4 +1,4 @@
-<div id="cart-mini">
+<div id="cart-mini" {% if oob %}hx-swap-oob="true"{% endif %}>
   {% if cart_count == 0 %}
   <div class="h-12 w-12 rounded-full overflow-hidden border border-stone-300 flex-shrink-0">
     <a

events/bp/all_events/routes.py

@@ -11,12 +11,12 @@ Routes:
 """
 from __future__ import annotations
 
-from quart import Blueprint, g, request, render_template, render_template_string, make_response
+from quart import Blueprint, g, request, render_template, make_response
 
 from shared.browser.app.utils.htmx import is_htmx_request
 from shared.infrastructure.cart_identity import current_cart_identity
 from shared.infrastructure.data_client import fetch_data
-from shared.contracts.dtos import CartSummaryDTO, PostDTO, dto_from_dict
+from shared.contracts.dtos import PostDTO, dto_from_dict
 from shared.services.registry import services
 
 
@@ -125,28 +125,21 @@ def register() -> Blueprint:
         # Load entry DTO for the widget template
         entry = await services.calendar.entry_by_id(g.s, entry_id)
 
-        # Updated cart count for OOB mini-cart
+        # Fetch OOB cart-mini fragment from cart service
-        summary_params = {}
+        from shared.infrastructure.fragments import fetch_fragment
+        frag_params = {"oob": "1"}
         if ident["user_id"] is not None:
-            summary_params["user_id"] = ident["user_id"]
+            frag_params["user_id"] = str(ident["user_id"])
         if ident["session_id"] is not None:
-            summary_params["session_id"] = ident["session_id"]
+            frag_params["session_id"] = ident["session_id"]
-        raw_summary = await fetch_data("cart", "cart-summary", params=summary_params, required=False)
-        summary = dto_from_dict(CartSummaryDTO, raw_summary) if raw_summary else CartSummaryDTO()
-        cart_count = summary.count + summary.calendar_count + summary.ticket_count
 
-        # Render widget + OOB cart-mini
         widget_html = await render_template(
             "_types/page_summary/_ticket_widget.html",
             entry=entry,
             qty=qty,
             ticket_url="/all-tickets/adjust",
         )
-        mini_html = await render_template_string(
+        mini_html = await fetch_fragment("cart", "cart-mini", params=frag_params, required=False)
-            '{% from "_types/cart/_mini.html" import mini with context %}'
-            '{{ mini(oob="true") }}',
-            cart_count=cart_count,
-        )
         return await make_response(widget_html + mini_html, 200)
 
     return bp

events/bp/calendar_entries/routes.py

@@ -3,7 +3,7 @@ from datetime import datetime, timezone
 from decimal import Decimal
 
 from quart import (
-    request, render_template, render_template_string, make_response,
+    request, render_template, make_response,
     Blueprint, g, redirect, url_for, jsonify,
 )
 
@@ -219,27 +219,17 @@ def register():
             select(sa_func.count()).select_from(CalendarEntry).where(*cal_filters)
         ) or 0
 
-        # Get product cart count via HTTP
         from shared.infrastructure.cart_identity import current_cart_identity
-        from shared.infrastructure.data_client import fetch_data
+        from shared.infrastructure.fragments import fetch_fragment
-        from shared.contracts.dtos import CartSummaryDTO, dto_from_dict
         ident = current_cart_identity()
-        summary_params = {}
+        frag_params = {"oob": "1"}
         if ident["user_id"] is not None:
-            summary_params["user_id"] = ident["user_id"]
+            frag_params["user_id"] = str(ident["user_id"])
         if ident["session_id"] is not None:
-            summary_params["session_id"] = ident["session_id"]
+            frag_params["session_id"] = ident["session_id"]
-        raw_summary = await fetch_data("cart", "cart-summary", params=summary_params, required=False)
-        cart_summary = dto_from_dict(CartSummaryDTO, raw_summary) if raw_summary else CartSummaryDTO()
-        product_count = cart_summary.count
-        total_count = product_count + cal_count
 
         html = await render_template("_types/day/_main_panel.html")
-        mini_html = await render_template_string(
+        mini_html = await fetch_fragment("cart", "cart-mini", params=frag_params, required=False)
-            '{% from "_types/cart/_mini.html" import mini with context %}'
-            '{{ mini(oob="true") }}',
-            cart_count=total_count,
-        )
         return await make_response(html + mini_html, 200)
     
     @bp.get("/add/")

events/bp/page/routes.py

@@ -8,12 +8,10 @@ Routes:
 """
 from __future__ import annotations
 
-from quart import Blueprint, g, request, render_template, render_template_string, make_response
+from quart import Blueprint, g, request, render_template, make_response
 
 from shared.browser.app.utils.htmx import is_htmx_request
 from shared.infrastructure.cart_identity import current_cart_identity
-from shared.infrastructure.data_client import fetch_data
-from shared.contracts.dtos import CartSummaryDTO, dto_from_dict
 from shared.services.registry import services
 
 
@@ -108,28 +106,21 @@ def register() -> Blueprint:
         # Load entry DTO for the widget template
         entry = await services.calendar.entry_by_id(g.s, entry_id)
 
-        # Updated cart count for OOB mini-cart
+        # Fetch OOB cart-mini fragment from cart service
-        summary_params = {}
+        from shared.infrastructure.fragments import fetch_fragment
+        frag_params = {"oob": "1"}
         if ident["user_id"] is not None:
-            summary_params["user_id"] = ident["user_id"]
+            frag_params["user_id"] = str(ident["user_id"])
         if ident["session_id"] is not None:
-            summary_params["session_id"] = ident["session_id"]
+            frag_params["session_id"] = ident["session_id"]
-        raw_summary = await fetch_data("cart", "cart-summary", params=summary_params, required=False)
-        summary = dto_from_dict(CartSummaryDTO, raw_summary) if raw_summary else CartSummaryDTO()
-        cart_count = summary.count + summary.calendar_count + summary.ticket_count
 
-        # Render widget + OOB cart-mini
         widget_html = await render_template(
             "_types/page_summary/_ticket_widget.html",
             entry=entry,
             qty=qty,
             ticket_url=f"/{g.post_slug}/tickets/adjust",
         )
-        mini_html = await render_template_string(
+        mini_html = await fetch_fragment("cart", "cart-mini", params=frag_params, required=False)
-            '{% from "_types/cart/_mini.html" import mini with context %}'
-            '{{ mini(oob="true") }}',
-            cart_count=cart_count,
-        )
         return await make_response(widget_html + mini_html, 200)
 
     return bp