From ebf66379186db094ba94914c2aed4e6a485d4708 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Sun, 20 Mar 2005 14:49:37 +0000
Subject: Added that the html options disabled, readonly, and multiple can all
 be treated as booleans. So specifying <tt>disabled => :true</tt> will give
 <tt>disabled="disabled"</tt>. #809 [mindel]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@932 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 .../lib/action_view/helpers/form_tag_helper.rb     | 34 +++++++++++++++++-----
 1 file changed, 26 insertions(+), 8 deletions(-)

(limited to 'actionpack/lib/action_view/helpers')

diff --git a/actionpack/lib/action_view/helpers/form_tag_helper.rb b/actionpack/lib/action_view/helpers/form_tag_helper.rb
index 2fc055686b..d8535d2870 100644
--- a/actionpack/lib/action_view/helpers/form_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_tag_helper.rb
@@ -5,6 +5,9 @@ module ActionView
   module Helpers
     # Provides a number of methods for creating form tags that doesn't rely on conventions with an object assigned to the template like
     # FormHelper does. With the FormTagHelper, you provide the names and values yourself.
+    #
+    # NOTE: The html options disabled, readonly, and multiple can all be treated as booleans. So specifying <tt>disabled => :true</tt>
+    # will give <tt>disabled="disabled"</tt>.
     module FormTagHelper
       # Starts a form tag that points the action to an url configured with <tt>url_for_options</tt> just like
       # ActionController::Base#url_for. The method for the form defaults to POST.
@@ -31,11 +34,11 @@ module ActionView
       end
 
       def select_tag(name, option_tags = nil, options = {})
-        content_tag("select", option_tags, { "name" => name, "id" => name }.update(options.stringify_keys))
+        content_tag("select", option_tags, { "name" => name, "id" => name }.update(convert_options(options)))
       end
 
       def text_field_tag(name, value = nil, options = {})
-        tag("input", { "type" => "text", "name" => name, "id" => name, "value" => value }.update(options.stringify_keys))
+        tag("input", { "type" => "text", "name" => name, "id" => name, "value" => value }.update(convert_options(options)))
       end
 
       def hidden_field_tag(name, value = nil, options = {})
@@ -43,11 +46,11 @@ module ActionView
       end
 
       def file_field_tag(name, options = {})
-        text_field_tag(name, nil, options.stringify_keys.update("type" => "file"))
+        text_field_tag(name, nil, convert_options(options).update("type" => "file"))
       end
 
       def password_field_tag(name = "password", value = nil, options = {})
-        text_field_tag(name, value, options.stringify_keys.update("type" => "password"))
+        text_field_tag(name, value, convert_options(options).update("type" => "password"))
       end
 
       def text_area_tag(name, content = nil, options = {})
@@ -57,24 +60,39 @@ module ActionView
           options.delete("size")
         end
 
-        content_tag("textarea", content, { "name" => name, "id" => name }.update(options.stringify_keys))
+        content_tag("textarea", content, { "name" => name, "id" => name }.update(convert_options(options)))
       end
 
       def check_box_tag(name, value = "1", checked = false, options = {})
-        html_options = { "type" => "checkbox", "name" => name, "id" => name, "value" => value }.update(options.stringify_keys)
+        html_options = { "type" => "checkbox", "name" => name, "id" => name, "value" => value }.update(convert_options(options))
         html_options["checked"] = "checked" if checked
         tag("input", html_options)
       end
 
       def radio_button_tag(name, value, checked = false, options = {})
-        html_options = { "type" => "radio", "name" => name, "id" => name, "value" => value }.update(options.stringify_keys)
+        html_options = { "type" => "radio", "name" => name, "id" => name, "value" => value }.update(convert_options(options))
         html_options["checked"] = "checked" if checked
         tag("input", html_options)
       end
 
       def submit_tag(value = "Save changes", options = {})
-        tag("input", { "type" => "submit", "name" => "submit", "value" => value }.update(options.stringify_keys))
+        tag("input", { "type" => "submit", "name" => "submit", "value" => value }.update(convert_options(options)))
       end
+      
+      private
+        def convert_options(options)
+          options = options.stringify_keys
+          %w( disabled readonly multiple ).each { |a| boolean_attribute(options, a) }
+          options
+        end
+        
+        def boolean_attribute(options, attribute)
+          if options[attribute]
+            options[attribute] = attribute
+          else
+            options.delete attribute
+          end
+        end
     end
   end
 end
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