Auto-mount defpages: eliminate Python route stubs across all 9 services

Defpages are now declared with absolute paths in .sx files and auto-mounted
directly on the Quart app, removing ~850 lines of blueprint mount_pages calls,
before_request hooks, and g.* wrapper boilerplate. A new page = one defpage
declaration, nothing else.

Infrastructure:
- async_eval awaits coroutine results from callable dispatch
- auto_mount_pages() mounts all registered defpages on the app
- g._defpage_ctx pattern passes helper data to layout context

Migrated: sx, account, orders, federation, cart, market, events, blog

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

cart/app.py

@@ -185,8 +185,6 @@ def create_app() -> "Quart":
     from sxc.pages import setup_cart_pages
     setup_cart_pages()
 
-    from shared.sx.pages import mount_pages
-
     # --- Blueprint registration ---
     # Static prefixes first, dynamic (page_slug) last
 
@@ -196,21 +194,22 @@ def create_app() -> "Quart":
         url_prefix="/",
     )
 
-    # Cart overview at GET /
+    # Cart overview blueprint (no defpage routes, just action endpoints)
     overview_bp = register_cart_overview(url_prefix="/")
-    mount_pages(overview_bp, "cart", names=["cart-overview"])
     app.register_blueprint(overview_bp, url_prefix="/")
 
-    # Page admin at /<page_slug>/admin/ (before page_cart catch-all)
+    # Page admin (PUT /payments/ etc.)
     admin_bp = register_page_admin()
-    mount_pages(admin_bp, "cart", names=["cart-admin", "cart-payments"])
     app.register_blueprint(admin_bp, url_prefix="/<page_slug>/admin")
 
-    # Page cart at /<page_slug>/ (dynamic, matched last)
+    # Page cart (POST /checkout/ etc.)
     page_cart_bp = register_page_cart(url_prefix="/")
-    mount_pages(page_cart_bp, "cart", names=["page-cart-view"])
     app.register_blueprint(page_cart_bp, url_prefix="/<page_slug>")
 
+    # Auto-mount all defpages with absolute paths
+    from shared.sx.pages import auto_mount_pages
+    auto_mount_pages(app, "cart")
+
     return app
 
 

cart/bp/cart/global_routes.py

@@ -56,9 +56,9 @@ def register(url_prefix: str) -> Blueprint:
 
         if request.headers.get("SX-Request") == "true" or request.headers.get("HX-Request") == "true":
             # Redirect to overview for HTMX
-            return redirect(url_for("cart_overview.defpage_cart_overview"))
+            return redirect(url_for("defpage_cart_overview"))
 
-        return redirect(url_for("cart_overview.defpage_cart_overview"))
+        return redirect(url_for("defpage_cart_overview"))
 
     @bp.post("/quantity/<int:product_id>/")
     async def update_quantity(product_id: int):
@@ -137,7 +137,7 @@ def register(url_prefix: str) -> Blueprint:
         tickets = await get_ticket_cart_entries(g.s)
 
         if not cart and not calendar_entries and not tickets:
-            return redirect(url_for("cart_overview.defpage_cart_overview"))
+            return redirect(url_for("defpage_cart_overview"))
 
         product_total = total(cart) or 0
         calendar_amount = calendar_total(calendar_entries) or 0
@@ -145,7 +145,7 @@ def register(url_prefix: str) -> Blueprint:
         cart_total = product_total + calendar_amount + ticket_amount
 
         if cart_total <= 0:
-            return redirect(url_for("cart_overview.defpage_cart_overview"))
+            return redirect(url_for("defpage_cart_overview"))
 
         try:
             page_config = await resolve_page_config(g.s, cart, calendar_entries, tickets)

cart/bp/cart/overview_routes.py

@@ -3,24 +3,9 @@
 
 from __future__ import annotations
 
-from quart import Blueprint, g, request
-
-from .services import get_cart_grouped_by_page
+from quart import Blueprint
 
 
 def register(url_prefix: str) -> Blueprint:
     bp = Blueprint("cart_overview", __name__, url_prefix=url_prefix)
-
-    @bp.before_request
-    async def _prepare_page_data():
-        """Load overview data for defpage route."""
-        endpoint = request.endpoint or ""
-        if not endpoint.endswith("defpage_cart_overview"):
-            return
-        from shared.sx.page import get_template_context
-        from sx.sx_components import _overview_main_panel_sx
-        page_groups = await get_cart_grouped_by_page(g.s)
-        ctx = await get_template_context()
-        g.overview_content = _overview_main_panel_sx(page_groups, ctx)
-
     return bp

cart/bp/cart/page_routes.py

@@ -19,26 +19,6 @@ from .services import current_cart_identity
 def register(url_prefix: str) -> Blueprint:
     bp = Blueprint("page_cart", __name__, url_prefix=url_prefix)
 
-    @bp.before_request
-    async def _prepare_page_data():
-        """Load page cart data for defpage route."""
-        endpoint = request.endpoint or ""
-        if not endpoint.endswith("defpage_page_cart_view"):
-            return
-        post = g.page_post
-        cart = await get_cart_for_page(g.s, post.id)
-        cal_entries = await get_calendar_entries_for_page(g.s, post.id)
-        page_tickets = await get_tickets_for_page(g.s, post.id)
-        ticket_groups = group_tickets(page_tickets)
-
-        from shared.sx.page import get_template_context
-        from sx.sx_components import _page_cart_main_panel_sx
-        ctx = await get_template_context()
-        g.page_cart_content = _page_cart_main_panel_sx(
-            ctx, cart, cal_entries, page_tickets, ticket_groups,
-            total, calendar_total, ticket_total,
-        )
-
     @bp.post("/checkout/")
     async def page_checkout():
         post = g.page_post
@@ -48,7 +28,7 @@ def register(url_prefix: str) -> Blueprint:
         page_tickets = await get_tickets_for_page(g.s, post.id)
 
         if not cart and not cal_entries and not page_tickets:
-            return redirect(url_for("page_cart.defpage_page_cart_view"))
+            return redirect(url_for("defpage_page_cart_view"))
 
         product_total_val = total(cart) or 0
         calendar_amount = calendar_total(cal_entries) or 0
@@ -56,7 +36,7 @@ def register(url_prefix: str) -> Blueprint:
         cart_total = product_total_val + calendar_amount + ticket_amount
 
         if cart_total <= 0:
-            return redirect(url_for("page_cart.defpage_page_cart_view"))
+            return redirect(url_for("defpage_page_cart_view"))
 
         ident = current_cart_identity()
 

cart/bp/orders/routes.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from quart import Blueprint, g, render_template, redirect, url_for, make_response
+from quart import Blueprint, g, redirect, url_for, make_response
 from sqlalchemy import select, func, or_, cast, String, exists
 from sqlalchemy.orm import selectinload
 

cart/bp/page_admin/routes.py

@@ -13,23 +13,6 @@ from shared.sx.helpers import sx_response
 def register():
     bp = Blueprint("page_admin", __name__)
 
-    @bp.before_request
-    async def _prepare_page_data():
-        """Pre-render admin content for defpage routes."""
-        endpoint = request.endpoint or ""
-        if request.method != "GET":
-            return
-        if endpoint.endswith("defpage_cart_admin"):
-            from shared.sx.page import get_template_context
-            from sx.sx_components import _cart_admin_main_panel_sx
-            ctx = await get_template_context()
-            g.cart_admin_content = _cart_admin_main_panel_sx(ctx)
-        elif endpoint.endswith("defpage_cart_payments"):
-            from shared.sx.page import get_template_context
-            from sx.sx_components import _cart_payments_main_panel_sx
-            ctx = await get_template_context()
-            g.cart_payments_content = _cart_payments_main_panel_sx(ctx)
-
     @bp.put("/payments/")
     @require_admin
     async def update_sumup(**kwargs):

cart/sx/sx_components.py

@@ -771,7 +771,7 @@ def _cart_page_admin_header_sx(ctx: dict, page_post: Any, *, oob: bool = False,
 def _cart_admin_main_panel_sx(ctx: dict) -> str:
     """Admin overview panel -- links to sub-admin pages."""
     from quart import url_for
-    payments_href = url_for("page_admin.defpage_cart_payments")
+    payments_href = url_for("defpage_cart_payments")
     return (
         '(div :id "main-panel"'
         ' (div :class "flex items-center justify-between p-3 border-b"'

cart/sxc/pages/__init__.py

@@ -90,32 +90,48 @@ def _register_cart_helpers() -> None:
     })
 
 
-def _h_overview_content():
+async def _h_overview_content(**kw):
     from quart import g
-    page_groups = getattr(g, "overview_page_groups", [])
+    from shared.sx.page import get_template_context
     from sx.sx_components import _overview_main_panel_sx
-    # _overview_main_panel_sx needs ctx for url helpers — use g-based approach
-    # The function reads cart_url from ctx, which we can get from template context
-    from shared.sx.page import get_template_context
-    import asyncio
-    # Page helpers are sync — we pre-compute in before_request
-    return getattr(g, "overview_content", "")
+    from bp.cart.services import get_cart_grouped_by_page
+    page_groups = await get_cart_grouped_by_page(g.s)
+    ctx = await get_template_context()
+    return _overview_main_panel_sx(page_groups, ctx)
 
 
-def _h_page_cart_content():
+async def _h_page_cart_content(page_slug=None, **kw):
     from quart import g
-    return getattr(g, "page_cart_content", "")
+    from shared.sx.page import get_template_context
+    from sx.sx_components import _page_cart_main_panel_sx
+    from bp.cart.services import total, calendar_total, ticket_total
+    from bp.cart.services.page_cart import (
+        get_cart_for_page, get_calendar_entries_for_page, get_tickets_for_page,
+    )
+    from bp.cart.services.ticket_groups import group_tickets
+
+    post = g.page_post
+    cart = await get_cart_for_page(g.s, post.id)
+    cal_entries = await get_calendar_entries_for_page(g.s, post.id)
+    page_tickets = await get_tickets_for_page(g.s, post.id)
+    ticket_groups = group_tickets(page_tickets)
+
+    ctx = await get_template_context()
+    return _page_cart_main_panel_sx(
+        ctx, cart, cal_entries, page_tickets, ticket_groups,
+        total, calendar_total, ticket_total,
+    )
 
 
-def _h_cart_admin_content():
+async def _h_cart_admin_content(page_slug=None, **kw):
+    from shared.sx.page import get_template_context
     from sx.sx_components import _cart_admin_main_panel_sx
+    ctx = await get_template_context()
+    return _cart_admin_main_panel_sx(ctx)
+
+
+async def _h_cart_payments_content(page_slug=None, **kw):
     from shared.sx.page import get_template_context
-    # Sync helper — _cart_admin_main_panel_sx is sync, but needs ctx
-    # We can pre-compute in before_request, or use get_template_context_sync-like pattern
-    from quart import g
-    return getattr(g, "cart_admin_content", "")
-
-
-def _h_cart_payments_content():
-    from quart import g
-    return getattr(g, "cart_payments_content", "")
+    from sx.sx_components import _cart_payments_main_panel_sx
+    ctx = await get_template_context()
+    return _cart_payments_main_panel_sx(ctx)

cart/sxc/pages/cart.sx

@@ -7,19 +7,19 @@
   :content (overview-content))
 
 (defpage page-cart-view
-  :path "/"
+  :path "/<page_slug>/"
   :auth :public
   :layout :cart-page
   :content (page-cart-content))
 
 (defpage cart-admin
-  :path "/"
+  :path "/<page_slug>/admin/"
   :auth :admin
   :layout :cart-admin
   :content (cart-admin-content))
 
 (defpage cart-payments
-  :path "/payments/"
+  :path "/<page_slug>/admin/payments/"
   :auth :admin
   :layout (:cart-admin :selected "payments")
   :content (cart-payments-content))