module Webpacker::Helper
Public Instance Methods
Computes the full path for a given webpacker asset. Return relative path using manifest.json and passes it to asset_url helper This will use asset_path internally, so most of their behaviors will be the same. Examples:
In development mode:
<%= asset_pack_path 'calendar.js' %> # => "/packs/calendar.js"
In production mode:
<%= asset_pack_path 'calendar.css' %> # => "/packs/calendar-1016838bab065ae1e122.css"
# File lib/webpacker-for-component/helper.rb, line 11 def asset_pack_path(name, **options) asset_path(Webpacker.manifest.lookup(name), **options) end
Creates a script tag that references the named pack file, as compiled by Webpack per the entries list in config/webpack/shared.js. By default, this list is auto-generated to match everything in app/javascript/packs/*.js. In production mode, the digested reference is automatically looked up.
Examples:
# In development mode: <%= javascript_pack_tag 'calendar', 'data-turbolinks-track': 'reload' %> # => <script src="/packs/calendar.js" data-turbolinks-track="reload"></script> # In production mode: <%= javascript_pack_tag 'calendar', 'data-turbolinks-track': 'reload' %> # => <script src="/packs/calendar-1016838bab065ae1e314.js" data-turbolinks-track="reload"></script>
# File lib/webpacker-for-component/helper.rb, line 27 def javascript_pack_tag(*names, **options) javascript_include_tag(*sources_from_pack_manifest(names, type: :javascript), **options) end
Creates a link tag that references the named pack file, as compiled by Webpack per the entries list in config/webpack/shared.js. By default, this list is auto-generated to match everything in app/javascript/packs/*.js. In production mode, the digested reference is automatically looked up.
Note: If the development server is running and hot module replacement is active, this will return nothing. In that setup you need to configure your styles to be inlined in your JavaScript for hot reloading.
Examples:
# In development mode: <%= stylesheet_pack_tag 'calendar', 'data-turbolinks-track': 'reload' %> # => <link rel="stylesheet" media="screen" href="/packs/calendar.css" data-turbolinks-track="reload" /> # In development mode with hot module replacement: <%= stylesheet_pack_tag 'calendar', 'data-turbolinks-track': 'reload' %> # => nil # In production mode: <%= stylesheet_pack_tag 'calendar', 'data-turbolinks-track': 'reload' %> # => <link rel="stylesheet" media="screen" href="/packs/calendar-1016838bab065ae1e122.css" data-turbolinks-track="reload" />
# File lib/webpacker-for-component/helper.rb, line 51 def stylesheet_pack_tag(*names, **options) unless Webpacker.dev_server.running? && Webpacker.dev_server.hot_module_replacing? stylesheet_link_tag(*sources_from_pack_manifest(names, type: :stylesheet), **options) end end
Private Instance Methods
# File lib/webpacker-for-component/helper.rb, line 62 def pack_name_with_extension(name, type:) "#{name}#{compute_asset_extname(name, type: type)}" end
# File lib/webpacker-for-component/helper.rb, line 58 def sources_from_pack_manifest(names, type:) names.map { |name| Webpacker.manifest.lookup(pack_name_with_extension(name, type: type)) } end