method

remote_function

v1.0.0 - Show latest stable - 0 notes - Class: ActionView::Helpers::JavaScriptHelper

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What's this?

remote_function(options) public

Returns the javascript needed for a remote function. Takes the same arguments as link_to_remote.

Example:

  <select id="options" onchange="<%= remote_function(:update => "options", :url => { :action => :update_options }) %>">
    <option value="0">Hello</option>
    <option value="1">World</option>
  </select>

Show source

# File actionpack/lib/action_view/helpers/javascript_helper.rb, line 262
      def remote_function(options)
        javascript_options = options_for_ajax(options)

        update = ''
        if options[:update] and options[:update].is_a?Hash
          update  = []
          update << "success:'#{options[:update][:success]}'" if options[:update][:success]
          update << "failure:'#{options[:update][:failure]}'" if options[:update][:failure]
          update  = '{' + update.join(',') + '}'
        elsif options[:update]
          update << "'#{options[:update]}'"
        end

        function = update.empty? ? 
          "new Ajax.Request(" :
          "new Ajax.Updater(#{update}, "

        function << "'#{url_for(options[:url])}'"
        function << ", #{javascript_options})"

        function = "#{options[:before]}; #{function}" if options[:before]
        function = "#{function}; #{options[:after]}"  if options[:after]
        function = "if (#{options[:condition]}) { #{function}; }" if options[:condition]
        function = "if (confirm('#{escape_javascript(options[:confirm])}')) { #{function}; }" if options[:confirm]

        return function
      end

remote_function

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