Module ActionView::Helpers::UrlHelper
In: lib/facebooker/rails/facebook_url_helper.rb

Methods

Public Instance methods

Alters one and only one line of the Rails button_to. See below.

[Source]

# File lib/facebooker/rails/facebook_url_helper.rb, line 52
      def button_to_with_facebooker(name, options={}, html_options = {})
        if !respond_to?(:request_comes_from_facebook?) || !request_comes_from_facebook?
           button_to_without_facebooker(name,options,html_options)
        else
          html_options = html_options.stringify_keys
          convert_boolean_attributes!(html_options, %w( disabled ))

          method_tag = ''
          if (method = html_options.delete('method')) && %w{put delete}.include?(method.to_s)
            method_tag = tag('input', :type => 'hidden', :name => '_method', :value => method.to_s)
          end

          form_method = method.to_s == 'get' ? 'get' : 'post'
        
          request_token_tag = ''
          if form_method == 'post' && protect_against_forgery?
            request_token_tag = tag(:input, :type => "hidden", :name => request_forgery_protection_token.to_s, :value => form_authenticity_token)
          end
        
          if confirm = html_options.delete("confirm")
            # this line is the only change => html_options["onclick"] = "return #{confirm_javascript_function(confirm)}"
            html_options["onclick"] = "#{confirm_javascript_function(confirm, 'a.getForm().submit();')}return false;"
          end

          url = options.is_a?(String) ? options : self.url_for(options)
          name ||= url
 
          html_options.merge!("type" => "submit", "value" => name)

          "<form method=\"#{form_method}\" action=\"#{escape_once url}\" class=\"button-to\"><div>" +
            method_tag + tag("input", html_options) + request_token_tag + "</div></form>"
        end
      end

[Validate]