Fix rails rewhere deprecation warning in directories api controller (#25625)

app/controllers/api/v1/directories_controller.rb

@@ -21,11 +21,35 @@ class Api::V1::DirectoriesController < Api::BaseController
 
   def accounts_scope
     Account.discoverable.tap do |scope|
-      scope.merge!(Account.local)                                          if truthy_param?(:local)
-      scope.merge!(Account.by_recent_status)                               if params[:order].blank? || params[:order] == 'active'
-      scope.merge!(Account.order(id: :desc))                               if params[:order] == 'new'
-      scope.merge!(Account.not_excluded_by_account(current_account))       if current_account
-      scope.merge!(Account.not_domain_blocked_by_account(current_account)) if current_account && !truthy_param?(:local)
+      scope.merge!(account_order_scope)
+      scope.merge!(local_account_scope) if local_accounts?
+      scope.merge!(account_exclusion_scope) if current_account
+      scope.merge!(account_domain_block_scope) if current_account && !local_accounts?
     end
   end
+
+  def local_accounts?
+    truthy_param?(:local)
+  end
+
+  def account_order_scope
+    case params[:order]
+    when 'new'
+      Account.order(id: :desc)
+    when 'active', nil
+      Account.by_recent_status
+    end
+  end
+
+  def local_account_scope
+    Account.local
+  end
+
+  def account_exclusion_scope
+    Account.not_excluded_by_account(current_account)
+  end
+
+  def account_domain_block_scope
+    Account.not_domain_blocked_by_account(current_account)
+  end
 end