method

button_to_function

v2.1.0 - Show latest stable - 0 notes - Class: ActionView::Helpers::JavaScriptHelper

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What's this?

button_to_function(name, *args, &block) public

Returns a button that’ll trigger a JavaScript function using the onclick handler.

The function argument can be omitted in favor of an update_page block, which evaluates to a string when the template is rendered (instead of making an Ajax request first).

Examples:

  button_to_function "Greeting", "alert('Hello world!')"
  button_to_function "Delete", "if (confirm('Really?')) do_delete()"
  button_to_function "Details" do |page|
    page[:details].visual_effect :toggle_slide
  end
  button_to_function "Details", :class => "details_button" do |page|
    page[:details].visual_effect :toggle_slide
  end

Show source

# File actionpack/lib/action_view/helpers/javascript_helper.rb, line 113
      def button_to_function(name, *args, &block)
        html_options = args.extract_options!
        function = args[0] || ''

        html_options.symbolize_keys!
        function = update_page(&block) if block_given?
        tag(:input, html_options.merge({ 
          :type => "button", :value => name, 
          :onclick => (html_options[:onclick] ? "#{html_options[:onclick]}; " : "") + "#{function};" 
        }))
      end

button_to_function

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