Implementation multiple admin panels

sqladmin/_menu.py

@@ -8,6 +8,8 @@
 if TYPE_CHECKING:
     from sqladmin.application import BaseView, ModelView
 
+from sqladmin.helpers import local_url_for
+
 
 class ItemMenu:
     def __init__(self, name: str, icon: str | None = None) -> None:
@@ -73,8 +75,8 @@ def is_active(self, request: Request) -> bool:
 
     def url(self, request: Request) -> str | URL:
         if self.view.is_model:
-            return request.url_for("admin:list", identity=self.view.identity)
-        return request.url_for(f"admin:{self.view.identity}")
+            return local_url_for(request, "list", identity=self.view.identity)
+        return local_url_for(request, self.view.identity)
 
     @property
     def display_name(self) -> str:

sqladmin/application.py

@@ -41,6 +41,7 @@
 from sqladmin.helpers import (
     get_object_identifier,
     is_async_session_maker,
+    local_url_for,
     slugify_action_name,
 )
 from sqladmin.models import BaseView, ModelView
@@ -236,13 +237,12 @@ class UserAdmin(ModelView, model=User):
 
         view._admin_ref = self
         # Set database engine from Admin instance
-        view.session_maker = self.session_maker
         view.is_async = self.is_async
         view.ajax_lookup_url = urljoin(
             self.base_url + "/", f"{view.identity}/ajax/lookup"
         )
         view.templates = self.templates
-        view_instance = view()
+        view_instance = view(self.session_maker)
 
         self._find_decorated_funcs(
             view, view_instance, self._handle_action_decorated_func
@@ -367,6 +367,7 @@ def __init__(  # type: ignore[no-any-unimported]
         debug: bool = False,
         templates_dir: str = "templates",
         authentication_backend: AuthenticationBackend | None = None,
+        mount_name: str = "admin",
     ) -> None:
         """
         Args:
@@ -446,7 +447,7 @@ async def http_exception(
         self.admin.router.routes = routes
         self.admin.exception_handlers = {HTTPException: http_exception}
         self.admin.debug = debug
-        self.app.mount(base_url, app=self.admin, name="admin")
+        self.app.mount(base_url, app=self.admin, name=mount_name)
 
     @login_required
     async def index(self, request: Request) -> Response:
@@ -519,7 +520,7 @@ async def delete(self, request: Request) -> Response:
 
         referer_url = URL(request.headers.get("referer", ""))
         referer_params = MultiDict(parse_qsl(referer_url.query))
-        url = URL(str(request.url_for("admin:list", identity=identity)))
+        url = URL(str(local_url_for(request, "list", identity=identity)))
         url = url.include_query_params(**referer_params)
         return PlainTextResponse(content=str(url))
 
@@ -658,7 +659,7 @@ async def login(self, request: Request) -> Response:
                 request, "sqladmin/login.html", context, status_code=400
             )
 
-        return RedirectResponse(request.url_for("admin:index"), status_code=302)
+        return RedirectResponse(local_url_for(request, "index"), status_code=302)
 
     async def logout(self, request: Request) -> Response:
         if self.authentication_backend is None:
@@ -672,7 +673,7 @@ async def logout(self, request: Request) -> Response:
         if isinstance(response, Response):
             return response
 
-        return RedirectResponse(request.url_for("admin:index"), status_code=302)
+        return RedirectResponse(local_url_for(request, "index"), status_code=302)
 
     async def ajax_lookup(self, request: Request) -> Response:
         """Ajax lookup route."""
@@ -706,14 +707,14 @@ def get_save_redirect_url(
         identifier = get_object_identifier(obj)
 
         if form.get("save") == "Save":
-            return request.url_for("admin:list", identity=identity)
+            return local_url_for(request, "list", identity=identity)
 
         if form.get("save") == "Save and continue editing" or (
             form.get("save") == "Save as new" and model_view.save_as_continue
         ):
-            return request.url_for("admin:edit", identity=identity, pk=identifier)
+            return local_url_for(request, "edit", identity=identity, pk=identifier)
 
-        return request.url_for("admin:create", identity=identity)
+        return local_url_for(request, "create", identity=identity)
 
     async def _handle_form_data(self, request: Request, obj: Any = None) -> FormData:
         """

sqladmin/authentication.py

@@ -8,6 +8,8 @@
 from starlette.requests import Request
 from starlette.responses import RedirectResponse, Response
 
+from sqladmin.helpers import local_url_for
+
 
 class AuthenticationBackend:
     """Base class for implementing the Authentication into SQLAdmin.
@@ -66,7 +68,9 @@ async def wrapper_decorator(*args: Any, **kwargs: Any) -> Any:
             if isinstance(response, Response):
                 return response
             if not bool(response):
-                return RedirectResponse(request.url_for("admin:login"), status_code=302)
+                return RedirectResponse(
+                    local_url_for(request, "login"), status_code=302
+                )
 
         if inspect.iscoroutinefunction(func):
             return await func(*args, **kwargs)

sqladmin/helpers.py

@@ -18,6 +18,9 @@
 from sqlalchemy import Column, inspect
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import RelationshipProperty, sessionmaker
+from starlette.datastructures import URL
+from starlette.requests import Request
+from starlette.routing import Mount, Router
 
 from sqladmin._types import MODEL_PROPERTY
 
@@ -322,3 +325,58 @@ def choice_coerce(value: Any) -> Any:
 
 def is_async_session_maker(session_maker: sessionmaker) -> bool:
     return AsyncSession in session_maker.class_.__mro__
+
+
+def local_url_for(request: Request, name: str, **kwargs: Any) -> URL:
+    """
+    Generate a URL for the specified route, taking router hierarchy into account.
+
+    If the current router matches the target router or is not defined, uses the standard
+    `request.url_for()` method. Otherwise, adds a router name prefix to the route name.
+
+    Args:
+        request (Request): HTTP request object.
+        name (str): route name for URL generation.
+        **kwargs (Any): additional parameters for `request.url_for()`
+            (e.g., path parameters).
+
+    Returns:
+        URL: generated URL for the specified route.
+    """
+    target_router = request.app.router
+    start_router = request.scope.get("router")
+    if not start_router or start_router == target_router:
+        return request.url_for(name, **kwargs)
+    router_name = get_current_router_name(start_router, target_router)
+    name_prefix = f"{router_name}:" if router_name else ""
+    return request.url_for(f"{name_prefix}{name}", **kwargs)
+
+
+def get_current_router_name(start_router: Any, target_router: Router) -> str | None:
+    """
+    Find the router name in the hierarchy that corresponds to the target router.
+
+    Traverses the routes of the start router and its nested applications
+    (of type `Mount`) to find a match with the target router.
+
+    Args:
+        start_router (Any): starting router from which the search begins.
+        target_router (Router): target router whose name needs to be found.
+
+    Returns:
+        str | None: router name (possibly composite in the format `parent:child`)
+            if the target router is found.`None` if the router is not found
+            in the hierarchy.
+    """
+    for router in getattr(start_router, "routes", []):
+        if router == target_router:
+            return router.name
+        if not isinstance(router, Mount):
+            continue
+        app_router = getattr(router.app, "router", None)
+        if app_router == target_router:
+            return router.name
+        sub_name = get_current_router_name(router, target_router)
+        if sub_name is not None:
+            return f"{router.name}:{sub_name}"
+    return None

sqladmin/models.py

@@ -51,6 +51,7 @@
     Writer,
     get_object_identifier,
     get_primary_keys,
+    local_url_for,
     object_identifier_values,
     prettify_class_name,
     secure_filename,
@@ -210,12 +211,6 @@ class UserAdmin(ModelView, model=User):
 
     # Internals
     pk_columns: ClassVar[Tuple[Column]]
-    session_maker: ClassVar[  # type: ignore[no-any-unimported]
-        Union[
-            sessionmaker,
-            "async_sessionmaker",
-        ]
-    ]
     is_async: ClassVar[bool] = False
     is_model: ClassVar[bool] = True
     ajax_lookup_url: ClassVar[str] = ""
@@ -703,7 +698,10 @@ class UserAdmin(ModelView, model=User):
         ```
     """
 
-    def __init__(self) -> None:
+    def __init__(
+        self, session_maker: Union[sessionmaker, "async_sessionmaker"]
+    ) -> None:
+        self.session_maker = session_maker
         self._mapper = inspect(self.model)
         self._prop_names = [attr.key for attr in self._mapper.attrs]
         self._relations = [
@@ -795,22 +793,23 @@ async def _run_query(self, stmt: ClauseElement) -> Any:
     def _url_for_delete(self, request: Request, obj: Any) -> str:
         pk = get_object_identifier(obj)
         query_params = urlencode({"pks": pk})
-        url = request.url_for(
-            "admin:delete", identity=slugify_class_name(obj.__class__.__name__)
+        url = local_url_for(
+            request, "delete", identity=slugify_class_name(obj.__class__.__name__)
         )
         return str(url) + "?" + query_params
 
     def _url_for_details_with_prop(self, request: Request, obj: Any, prop: str) -> URL:
         target = getattr(obj, prop, None)
         if target is None:
             return URL()
-        return self._build_url_for("admin:details", request, target)
+        return self._build_url_for("details", request, target)
 
     def _url_for_action(self, request: Request, action_name: str) -> str:
-        return str(request.url_for(f"admin:action-{self.identity}-{action_name}"))
+        return str(local_url_for(request, f"action-{self.identity}-{action_name}"))
 
     def _build_url_for(self, name: str, request: Request, obj: Any) -> URL:
-        return request.url_for(
+        return local_url_for(
+            request,
             name,
             identity=slugify_class_name(obj.__class__.__name__),
             pk=get_object_identifier(obj),

sqladmin/templates/sqladmin/base.html

@@ -4,12 +4,12 @@
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
-  <link rel="stylesheet" href="{{ url_for('admin:statics', path='css/tabler.min.css') }}">
-  <link rel="stylesheet" href="{{ url_for('admin:statics', path='css/tabler-icons.min.css') }}">
-  <link rel="stylesheet" href="{{ url_for('admin:statics', path='css/fontawesome.min.css') }}">
-  <link rel="stylesheet" href="{{ url_for('admin:statics', path='css/select2.min.css') }}">
-  <link rel="stylesheet" href="{{ url_for('admin:statics', path='css/flatpickr.min.css') }}">
-  <link rel="stylesheet" href="{{ url_for('admin:statics', path='css/main.css') }}">
+  <link rel="stylesheet" href="{{ url_for('statics', path='css/tabler.min.css') }}">
+  <link rel="stylesheet" href="{{ url_for('statics', path='css/tabler-icons.min.css') }}">
+  <link rel="stylesheet" href="{{ url_for('statics', path='css/fontawesome.min.css') }}">
+  <link rel="stylesheet" href="{{ url_for('statics', path='css/select2.min.css') }}">
+  <link rel="stylesheet" href="{{ url_for('statics', path='css/flatpickr.min.css') }}">
+  <link rel="stylesheet" href="{{ url_for('statics', path='css/main.css') }}">
   {% if admin.favicon_url %}
   <link rel="icon" href="{{ admin.favicon_url }}">
   {% endif %}
@@ -25,13 +25,13 @@
     {% endblock %}
   </main>
   {% endblock %}
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/jquery.min.js') }}"></script>
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/tabler.min.js') }}"></script>
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/popper.min.js') }}"></script>
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/bootstrap.min.js') }}"></script>
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/select2.full.min.js') }}"></script>
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/flatpickr.min.js') }}"></script>
-  <script type="text/javascript" src="{{ url_for('admin:statics', path='js/main.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/jquery.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/tabler.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/popper.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/bootstrap.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/select2.full.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/flatpickr.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('statics', path='js/main.js') }}"></script>
   {% block tail %}
   {% endblock %}
 </body>

sqladmin/templates/sqladmin/create.html

@@ -7,7 +7,7 @@
       <h3 class="card-title">New {{ model_view.name }}</h3>
     </div>
     <div class="card-body border-bottom py-3">
-      <form action="{{ url_for('admin:create', identity=model_view.identity) }}" method="POST"
+      <form action="{{ url_for('create', identity=model_view.identity) }}" method="POST"
         enctype="multipart/form-data">
         <div class="row">
           {% if error %}
@@ -19,7 +19,7 @@ <h3 class="card-title">New {{ model_view.name }}</h3>
         </fieldset>
         <div class="row">
           <div class="col-md-2">
-            <a href="{{ url_for('admin:list', identity=model_view.identity) }}" class="btn">
+            <a href="{{ url_for('list', identity=model_view.identity) }}" class="btn">
               Cancel
             </a>
           </div>

sqladmin/templates/sqladmin/details.html

@@ -29,9 +29,9 @@ <h3 class="card-title">
               <td>
                 {% for elem, formatted_elem in zip(value, formatted_value) %}
                   {% if model_view.show_compact_lists %}
-                    <a href="{{ model_view._build_url_for('admin:details', request, elem) }}">({{ formatted_elem }})</a>
+                    <a href="{{ model_view._build_url_for('details', request, elem) }}">({{ formatted_elem }})</a>
                   {% else %}
-                    <a href="{{ model_view._build_url_for('admin:details', request, elem) }}">{{ formatted_elem }}</a><br/>
+                    <a href="{{ model_view._build_url_for('details', request, elem) }}">{{ formatted_elem }}</a><br/>
                   {% endif %}
                 {% endfor %}
               </td>
@@ -50,7 +50,7 @@ <h3 class="card-title">
       <div class="card-footer container">
         <div class="row row-gap-2">
           <div class="col-auto">
-            <a href="{{ url_for('admin:list', identity=model_view.identity) }}" class="btn">
+            <a href="{{ url_for('list', identity=model_view.identity) }}" class="btn">
               Go Back
             </a>
           </div>
@@ -65,7 +65,7 @@ <h3 class="card-title">
           {% endif %}
           {% if model_view.can_edit %}
           <div class="col-auto">
-            <a href="{{ model_view._build_url_for('admin:edit', request, model) }}" class="btn btn-primary">
+            <a href="{{ model_view._build_url_for('edit', request, model) }}" class="btn btn-primary">
               Edit
             </a>
           </div>

sqladmin/templates/sqladmin/edit.html

@@ -7,7 +7,7 @@
       <h3 class="card-title">Edit {{ model_view.name }}</h3>
     </div>
     <div class="card-body border-bottom py-3">
-      <form action="{{ model_view._build_url_for('admin:edit', request, obj) }}" method="POST"
+      <form action="{{ model_view._build_url_for('edit', request, obj) }}" method="POST"
         enctype="multipart/form-data">
         <div class="row">
           {% if error %}
@@ -19,7 +19,7 @@ <h3 class="card-title">Edit {{ model_view.name }}</h3>
         </fieldset>
         <div class="row">
           <div class="col-md-2">
-            <a href="{{ url_for('admin:list', identity=model_view.identity) }}" class="btn">
+            <a href="{{ url_for('list', identity=model_view.identity) }}" class="btn">
               Cancel
             </a>
           </div>

sqladmin/templates/sqladmin/layout.html

@@ -5,7 +5,7 @@
   <aside class="navbar navbar-expand-lg navbar-vertical navbar-expand-md navbar-dark">
     <div class="container-fluid">
       <h1 class="navbar-brand navbar-brand-autodark">
-        <a href="{{ url_for('admin:index') }}">
+        <a href="{{ url_for('index') }}">
           {% if admin.logo_url %}
           <img src="{{ admin.logo_url }}" width="64" height="64" alt="{{ admin.title }}" />
           {% else %}
@@ -23,7 +23,7 @@ <h3>{{ admin.title }}</h3>
         </div>
       </nav>
       {% if admin.authentication_backend %}
-      <a href="{{ request.url_for('admin:logout') }}" class="btn btn-secondary btn-icon m-2 px-2">
+      <a href="{{ url_for('logout') }}" class="btn btn-secondary btn-icon m-2 px-2">
         <span class="me-2">Logout</span>
         <i class="fa fa-sign-out"></i>
       </a>