Fix transaction_controller.ex

apps/block_scout_web/lib/block_scout_web/controllers/api/v2/transaction_controller.ex

@@ -68,12 +68,18 @@ defmodule BlockScoutWeb.API.V2.TransactionController do
   """
   @spec transaction(Plug.Conn.t(), map()) :: Plug.Conn.t() | {atom(), any()}
   def transaction(conn, %{"transaction_hash_param" => transaction_hash_string} = params) do
+    necessity_by_association_with_actions =
+      Map.put(@transaction_necessity_by_association, :transaction_actions, :optional)
+
     necessity_by_association =
-      @transaction_necessity_by_association
+      if Application.get_env(:explorer, :chain_type) == "polygon_zkevm" do
-      |> Map.put(:transaction_actions, :optional)
+        necessity_by_association_with_actions
-      |> Map.put(:zkevm_batch, :optional)
+        |> Map.put(:zkevm_batch, :optional)
-      |> Map.put(:zkevm_sequence_txn, :optional)
+        |> Map.put(:zkevm_sequence_txn, :optional)
-      |> Map.put(:zkevm_verify_txn, :optional)
+        |> Map.put(:zkevm_verify_txn, :optional)
+      else
+        necessity_by_association_with_actions
+      end
 
     with {:format, {:ok, transaction_hash}} <- {:format, Chain.string_to_transaction_hash(transaction_hash_string)},
          {:not_found, {:ok, transaction}} <-