Module: Webpacker::Helper

Defined in:

lib/webpacker-for-component/helper.rb

Instance Method Summary

• #asset_pack_path(name, **options) ⇒ Object

  Computes the full path for a given webpacker asset.

• #javascript_pack_tag(*names, **options) ⇒ Object

  Creates a script tag that references the named pack file, as compiled by Webpack per the entries list in config/webpack/shared.js.

• #stylesheet_pack_tag(*names, **options) ⇒ Object

  Creates a link tag that references the named pack file, as compiled by Webpack per the entries list in config/webpack/shared.js.

Instance Method Details

#asset_pack_path(name, **options) ⇒ Object

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

#javascript_pack_tag(*names, **options) ⇒ Object

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

#stylesheet_pack_tag(*names, **options) ⇒ Object

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