Setup suggest action in investments controller

app/controllers/budgets/investments_controller.rb

@@ -20,7 +20,7 @@ module Budgets
 
     has_orders %w{most_voted newest oldest}, only: :show
     has_orders ->(c) { c.instance_variable_get(:@budget).investments_orders }, only: :index
-    has_filters %w{not_unfeasible feasible unfeasible unselected selected}, only: [:index, :show]
+    has_filters %w{not_unfeasible feasible unfeasible unselected selected}, only: [:index, :show, :suggest]
 
     invisible_captcha only: [:create, :update], honeypot: :subtitle, scope: :budget_investment
 
@@ -71,6 +71,12 @@ module Budgets
       end
     end
 
+    def suggest
+      @resource_path_method = :namespaced_budget_investment_path
+      @resource_relation    = resource_model.where(budget: @budget).apply_filters_and_search(@budget, params, @current_filter)
+      super
+    end
+
     private
 
       def resource_model