Module: Danthes::ViewHelpers

Defined in:
lib/danthes/view_helpers.rb

Instance Method Summary collapse

Instance Method Details

#publish_to(channel, data = nil, &block) ⇒ Object

Publish the given data or block to the client by sending a Net::HTTP POST request to the Faye server. If a block or string is passed in, it is evaluated as JavaScript on the client. Otherwise it will be converted to JSON for use in a JavaScript callback.



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# File 'lib/danthes/view_helpers.rb', line 8

def publish_to(channel, data = nil, &block)
  Danthes.publish_to(channel, data || capture(&block))
end

#subscribe_to(channel, opts = {}) ⇒ Object

Subscribe the client to the given channel. This generates some JavaScript calling Danthes.sign with the subscription options.



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# File 'lib/danthes/view_helpers.rb', line 15

def subscribe_to(channel, opts = {})
  js_tag = opts.delete(:include_js_tag){ true }
  subscription = Danthes.subscription(channel: channel)
  content = raw("if (typeof Danthes != 'undefined') { Danthes.sign(#{subscription.to_json}) }")
  js_tag ? content_tag('script', content, type: 'text/javascript') : content
end