fix: bypass Starlette Jinja2Templates, use raw Jinja2 to avoid cache_key hash bug

app/admin/router.py

@@ -1,6 +1,7 @@
+from jinja2 import Environment, FileSystemLoader
+
 from fastapi import APIRouter, Request
 from fastapi.responses import HTMLResponse
-from fastapi.templating import Jinja2Templates
 from sqlalchemy import func, select
 
 from app.database import async_session_factory
@@ -14,10 +15,13 @@ from app.repositories.tariff import TariffRepository
 from app.repositories.user import UserRepository
 
 router = APIRouter(prefix="/admin", tags=["admin"])
-templates = Jinja2Templates(directory="app/templates")
 
-router = APIRouter(prefix="/admin", tags=["admin"])
-templates = Jinja2Templates(directory="app/templates")
+_env = Environment(loader=FileSystemLoader("app/templates"), auto_reload=False)
+
+
+def _render(name: str, **context) -> str:
+    template = _env.get_template(name)
+    return template.render(**context)
 
 
 @router.get("/", response_class=HTMLResponse)
@@ -45,19 +49,19 @@ async def dashboard(request: Request):
         )
         total_revenue = float((await session.execute(rev_stmt)).scalar_one())
 
-    return templates.TemplateResponse(
-        "dashboard.html",
-        {
-            "request": request,
-            "total_users": total_users,
-            "active_users": active_users,
-            "total_tariffs": total_tariffs,
-            "total_servers": total_servers,
-            "active_servers": active_servers,
-            "total_payments": total_payments,
-            "confirmed_payments": confirmed_payments,
-            "total_revenue": total_revenue,
-        },
+    return HTMLResponse(
+        _render(
+            "dashboard.html",
+            request=request,
+            total_users=total_users,
+            active_users=active_users,
+            total_tariffs=total_tariffs,
+            total_servers=total_servers,
+            active_servers=active_servers,
+            total_payments=total_payments,
+            confirmed_payments=confirmed_payments,
+            total_revenue=total_revenue,
+        )
     )
 
 
@@ -67,9 +71,8 @@ async def users_page(request: Request):
         repo = UserRepository(session)
         users = await repo.get_all()
 
-    return templates.TemplateResponse(
-        "users.html",
-        {"request": request, "users": users},
+    return HTMLResponse(
+        _render("users.html", request=request, users=users)
     )
 
 
@@ -88,9 +91,13 @@ async def payments_page(request: Request):
                 t = await tariff_repo.get(p.tariff_id)
                 tariffs_map[p.tariff_id] = t.name if t else "—"
 
-    return templates.TemplateResponse(
-        "payments.html",
-        {"request": request, "payments": payments, "tariffs_map": tariffs_map},
+    return HTMLResponse(
+        _render(
+            "payments.html",
+            request=request,
+            payments=payments,
+            tariffs_map=tariffs_map,
+        )
     )
 
 
@@ -100,9 +107,8 @@ async def servers_page(request: Request):
         repo = ServerRepository(session)
         servers = await repo.get_all()
 
-    return templates.TemplateResponse(
-        "servers.html",
-        {"request": request, "servers": servers},
+    return HTMLResponse(
+        _render("servers.html", request=request, servers=servers)
     )
 
 
@@ -112,7 +118,6 @@ async def tariffs_page(request: Request):
         repo = TariffRepository(session)
         tariffs = await repo.get_all()
 
-    return templates.TemplateResponse(
-        "tariffs.html",
-        {"request": request, "tariffs": tariffs},
+    return HTMLResponse(
+        _render("tariffs.html", request=request, tariffs=tariffs)
     )