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rails--rails/actioncable/lib/rails/generators/channel/channel_generator.rb
Prathamesh Sonpatki 63ac6255ba
Cable: Generate .js or .coffee files while generating channel as per the javascript engine of the application
- Now we will detect what javascript engine user is using and based on
  that we will generate either `.js` or `.coffee` version of the channel
  file.
- This also needs a change in coffee-rails to override the `js_template`
  method. Related PR https://github.com/rails/coffee-rails/pull/72.
- Currently coffee-rails gem sets
  `config.app_generators.javascript_engine` to `:coffee` and using this
  information we override the `js_template` to set the extension as
  `.coffee` in coffee-rails gem.
- Using this approach, we can keep the `channel.js` and `channel.coffee`
  files in the Rails repository itself.
- Additionally the `js_template` method can act as public interface for
  coffee-rails gem to hook into and change the extension to `.coffee`
  without maintaining the actual asset files.

[Prathamesh Sonpatki, Matthew Draper]
2016-05-17 18:12:19 +05:30

47 lines
1.3 KiB
Ruby

module Rails
module Generators
class ChannelGenerator < NamedBase
source_root File.expand_path("../templates", __FILE__)
argument :actions, type: :array, default: [], banner: "method method"
class_option :assets, type: :boolean
check_class_collision suffix: "Channel"
def create_channel_file
template "channel.rb", File.join('app/channels', class_path, "#{file_name}_channel.rb")
if options[:assets]
if self.behavior == :invoke
template "assets/cable.js", "app/assets/javascripts/cable.js"
end
js_template "assets/channel", File.join('app/assets/javascripts/channels', class_path, "#{file_name}")
end
generate_application_cable_files
end
protected
def file_name
@_file_name ||= super.gsub(/_channel/i, '')
end
# FIXME: Change these files to symlinks once RubyGems 2.5.0 is required.
def generate_application_cable_files
return if self.behavior != :invoke
files = [
'application_cable/channel.rb',
'application_cable/connection.rb'
]
files.each do |name|
path = File.join('app/channels/', name)
template(name, path) if !File.exist?(path)
end
end
end
end
end