I am trying to include the JS file in the plugin view. I can not get the right file url, instead-of base_path/assets/file_name.js I have base_path/javascript/file_name.js. I am attaching my code bellow.

index.html.erb

@ <%= javascript_include_tag ‘mega_calendar/jquery-serialize-object.js’, plugin: :openproject_mega_calendar %> @

hooks.rb

module OpenProject::MegaCalendar
  ##
  # Given a hook name as defined in the core the main way to call it is defining
  # a method with the same name in your Hook class (e.g. view_layouts_base_sidebar here).
  #
  # Alternatively you can use the `render_on` helper as shown for the `homescreen_after_links`
  # and the `view_layouts_base_html_head` hooks.
  class Hooks < Redmine::Hook::ViewListener
    # here we render a partial
    render_on :homescreen_after_links, partial: 'hooks/mega_calendar/homescreen_after_links'

    # you can use inline partials as well:
    render_on :view_layouts_base_html_head, inline: <<-VIEW
<% content_for :header_tags do %>
  <%= stylesheet_link_tag 'mega_calendar/jquery-serialize-object.js', plugin: :openproject_mega_calendar %>
  <%= javascript_include_tag 'mega_calendar/jquery-serialize-object.js', plugin: :openproject_mega_calendar %>
<% end %>
VIEW

    ##
    # Any string returned by this method will be rendered at the position of
    # the `view_layouts_base_sidebar` hook. Here we want to use a partial
    # which is why we use the controller's `render_to_string` method.
    #
    # You may also just return a string directly, though.
    def view_layouts_base_sidebar(context={})
      context[:controller].send(:render_to_string, {
        :partial => "hooks/mega_calendar/view_layouts_base_sidebar",
        :locals => context
      })
    end

    ##
    # This is a controller hook. It doesn't render anything. Its return value
    # may be used by the callsite of the hook. Though it's not used most of the time.
    def controller_account_success_authentication_after(context={})
      context[:controller].flash[:MegaCalendar] = "Yay! Welcome #{context[:user].firstname}!"
    end
  end
end