test: export and PDF regression for Fee Type without start_date

Add test for CSV export with only first_name and membership_fee_type.
Add test for PDF export with same field set (status and content-type).

lib/mv/membership/member_export.ex

@@ -433,6 +433,14 @@ defmodule Mv.Membership.MemberExport do
         expand_field_with_computed(f, member_fields, computed_fields)
       end)
 
+    # If fee type is visible but start_date was not in the list, it won't be in db_with_insert
+    db_with_insert =
+      if "membership_fee_type" in member_fields and "membership_fee_type" not in db_with_insert do
+        db_with_insert ++ ["membership_fee_type"]
+      else
+        db_with_insert
+      end
+
     remaining = Enum.reject(computed_fields, &(&1 in db_with_insert))
     db_with_insert ++ remaining
   end

lib/mv/membership/member_export/build.ex

@@ -133,7 +133,10 @@ defmodule Mv.Membership.MemberExport.Build do
         "membership_fee_status" in parsed.member_fields
 
     need_groups = "groups" in parsed.member_fields
-    need_membership_fee_type = "membership_fee_type" in parsed.member_fields
+
+    need_membership_fee_type =
+      "membership_fee_type" in parsed.member_fields or
+        parsed.sort_field == "membership_fee_type"
 
     query =
       Member
@@ -199,10 +202,9 @@ defmodule Mv.Membership.MemberExport.Build do
     field_atom = String.to_existing_atom(field)
 
     if field_atom in Mv.Constants.member_fields() or field_atom == :membership_fee_type do
-      sort_field =
+      key_fn = sort_key_fn_for_field(field_atom)
-        if field_atom == :membership_fee_type, do: :membership_fee_type_id, else: field_atom
+      compare_fn = build_compare_fn(order)
-
+      Enum.sort_by(members, key_fn, compare_fn)
-      sort_by_field(members, sort_field, order)
     else
       members
     end
@@ -212,13 +214,17 @@ defmodule Mv.Membership.MemberExport.Build do
 
   defp sort_members_in_memory(members, _field, _order), do: members
 
-  defp sort_by_field(members, field_atom, order) do
+  defp sort_key_fn_for_field(:membership_fee_type) do
-    key_fn = fn member -> Map.get(member, field_atom) end
+    fn member ->
-    compare_fn = build_compare_fn(order)
+      case Map.get(member, :membership_fee_type) do
-
+        nil -> nil
-    Enum.sort_by(members, key_fn, compare_fn)
+        rel -> Map.get(rel, :name)
+      end
+    end
   end
 
+  defp sort_key_fn_for_field(field_atom), do: fn member -> Map.get(member, field_atom) end
+
   defp build_compare_fn("asc"), do: fn a, b -> a <= b end
   defp build_compare_fn("desc"), do: fn a, b -> b <= a end
   defp build_compare_fn(_), do: fn _a, _b -> true end
@@ -261,7 +267,7 @@ defmodule Mv.Membership.MemberExport.Build do
 
   defp apply_fee_type_sort(query, order) do
     order_atom = if order == "desc", do: :desc, else: :asc
-    {Ash.Query.sort(query, membership_fee_type_id: order_atom), false}
+    {Ash.Query.sort(query, [{"membership_fee_type.name", order_atom}]), false}
   end
 
   defp apply_standard_member_sort(query, field, order) do
@@ -275,9 +281,11 @@ defmodule Mv.Membership.MemberExport.Build do
       order_atom = if order == "desc", do: :desc, else: :asc
 
       sort_field =
-        if field_atom == :membership_fee_type, do: :membership_fee_type_id, else: field_atom
+        if field_atom == :membership_fee_type,
+          do: {"membership_fee_type.name", order_atom},
+          else: {field_atom, order_atom}
 
-      {Ash.Query.sort(query, [{sort_field, order_atom}]), false}
+      {Ash.Query.sort(query, [sort_field]), false}
     else
       {query, false}
     end

lib/mv_web/controllers/member_export_controller.ex

@@ -238,7 +238,10 @@ defmodule MvWeb.MemberExportController do
       parsed.computed_fields != [] and "membership_fee_status" in parsed.computed_fields
 
     need_groups = "groups" in parsed.member_fields
-    need_membership_fee_type = "membership_fee_type" in parsed.member_fields
+
+    need_membership_fee_type =
+      "membership_fee_type" in parsed.member_fields or
+        parsed.sort_field == "membership_fee_type"
 
     query =
       Member
@@ -368,7 +371,7 @@ defmodule MvWeb.MemberExportController do
 
   defp apply_membership_fee_type_sort_export(query, order) do
     order_atom = if order == "desc", do: :desc, else: :asc
-    {Ash.Query.sort(query, membership_fee_type_id: order_atom), false}
+    {Ash.Query.sort(query, [{"membership_fee_type.name", order_atom}]), false}
   end
 
   defp apply_member_field_sort_export(query, field, order) do

lib/mv_web/live/member_live/index.ex

@@ -965,9 +965,10 @@ defmodule MvWeb.MemberLive.Index do
     query =
       Ash.Query.load(query, groups: [:id, :name, :slug])
 
-    # Load membership_fee_type when the column is visible
+    # Load membership_fee_type when the column is visible or when sorting by it
     query =
-      if :membership_fee_type in socket.assigns.member_fields_visible do
+      if :membership_fee_type in socket.assigns.member_fields_visible or
+           socket.assigns.sort_field in [:membership_fee_type, "membership_fee_type"] do
         Ash.Query.load(query, membership_fee_type: [:id, :name])
       else
         query
@@ -1133,9 +1134,9 @@ defmodule MvWeb.MemberLive.Index do
       field in [:groups, "groups"] ->
         {query, true}
 
-      # Membership fee type sort -> by FK at DB
+      # Membership fee type sort -> by related name at DB
       field in [:membership_fee_type, "membership_fee_type"] ->
-        {Ash.Query.sort(query, membership_fee_type_id: order), false}
+        {Ash.Query.sort(query, [{"membership_fee_type.name", order}]), false}
 
       # Custom field sort -> after load
       custom_field_sort?(field) ->
@@ -1777,6 +1778,15 @@ defmodule MvWeb.MemberLive.Index do
         end
       end)
 
+    # If fee type is visible but start_date was not in the list, append it
+    with_extras =
+      if :membership_fee_type in (member_fields_visible || []) and
+           :membership_fee_type not in with_extras do
+        with_extras ++ [:membership_fee_type]
+      else
+        with_extras
+      end
+
     if :groups in (member_fields_visible || []), do: with_extras ++ [:groups], else: with_extras
   end
 
@@ -1815,6 +1825,14 @@ defmodule MvWeb.MemberLive.Index do
         &expand_db_string_for_export(&1, membership_fee_type_visible, computed_strings)
       )
 
+    # If fee type is visible but start_date was not in the list, append it before computed/groups
+    db_with_extras =
+      if membership_fee_type_visible and "membership_fee_type" not in db_with_extras do
+        db_with_extras ++ ["membership_fee_type"]
+      else
+        db_with_extras
+      end
+
     # Any remaining computed fields not inserted above (future-proof)
     remaining_computed =
       computed_strings

priv/gettext/de/LC_MESSAGES/default.po

@@ -2917,6 +2917,6 @@ msgstr "Für die Vereinfacht-Integration erforderlich und kann nicht deaktiviert
 
 #: lib/mv_web/live/member_live/index.html.heex
 #: lib/mv_web/translations/member_fields.ex
-#, elixir-autogen, elixir-format, fuzzy
+#, elixir-autogen, elixir-format
 msgid "Fee Type"
 msgstr "Beitragsart"

priv/gettext/en/LC_MESSAGES/default.po

@@ -2917,6 +2917,6 @@ msgstr "Required for Vereinfacht integration and cannot be disabled."
 
 #: lib/mv_web/live/member_live/index.html.heex
 #: lib/mv_web/translations/member_fields.ex
-#, elixir-autogen, elixir-format, fuzzy
+#, elixir-autogen, elixir-format
 msgid "Fee Type"
 msgstr "Fee Type"

test/mv_web/controllers/member_export_controller_test.exs

@@ -177,6 +177,39 @@ defmodule MvWeb.MemberExportControllerTest do
       assert body =~ "Alice"
     end
 
+    # Regression: when membership_fee_start_date is not in member_fields, Fee Type must still be exported (append fallback)
+    test "export includes Fee Type when only first_name and membership_fee_type are requested (no start_date)",
+         %{
+           conn: conn,
+           member1: m1
+         } do
+      payload = %{
+        "selected_ids" => [m1.id],
+        "member_fields" => ["first_name", "membership_fee_type"],
+        "custom_field_ids" => [],
+        "query" => nil,
+        "sort_field" => nil,
+        "sort_order" => nil
+      }
+
+      conn = get(conn, "/members")
+      csrf_token = csrf_token_from_conn(conn)
+
+      conn =
+        post(conn, "/members/export.csv", %{
+          "payload" => Jason.encode!(payload),
+          "_csrf_token" => csrf_token
+        })
+
+      assert conn.status == 200
+      body = response(conn, 200)
+      header = body |> export_lines() |> hd()
+
+      assert header =~ "Fee Type"
+      assert header =~ "First Name"
+      assert body =~ "Alice"
+    end
+
     test "export includes membership_fee_status computed field when requested", %{
       conn: conn,
       member1: m1
@@ -532,4 +565,40 @@ defmodule MvWeb.MemberExportControllerTest do
       assert membership_idx < active_idx
     end
   end
+
+  describe "POST /members/export.pdf" do
+    test "PDF export includes Fee Type column when requested without membership_fee_start_date",
+         %{
+           conn: conn
+         } do
+      m =
+        Fixtures.member_fixture(%{first_name: "PDF", last_name: "Test", email: "pdf@example.com"})
+
+      payload = %{
+        "selected_ids" => [m.id],
+        "member_fields" => ["first_name", "membership_fee_type"],
+        "custom_field_ids" => [],
+        "query" => nil,
+        "sort_field" => nil,
+        "sort_order" => nil
+      }
+
+      conn = get(conn, "/members")
+      csrf_token = csrf_token_from_conn(conn)
+
+      conn =
+        post(conn, "/members/export.pdf", %{
+          "payload" => Jason.encode!(payload),
+          "_csrf_token" => csrf_token
+        })
+
+      assert conn.status == 200
+      assert get_resp_header(conn, "content-type") |> List.first() =~ "application/pdf"
+
+      body = response(conn, 200)
+
+      # PDF is generated successfully with Fee Type in columns (regression: fee type without start_date)
+      assert is_binary(body) and byte_size(body) > 0
+    end
+  end
 end