instance method
radio_button
Ruby on Rails 2.2.3
Signature
radio_button(object_name, method, tag_value, options = {})Returns a radio button tag for accessing a specified attribute (identified by method) on an object assigned to the template (identified by object). If the current value of method is tag_value the radio button will be checked. Additional options on the input tag can be passed as a hash with options.
Examples
# Let's say that @post.category returns "rails":
radio_button("post", "category", "rails")
radio_button("post", "category", "java")
# => <input type="radio" id="post_category_rails" name="post[category]" value="rails" checked="checked" />
# <input type="radio" id="post_category_java" name="post[category]" value="java" />
radio_button("user", "receive_newsletter", "yes")
radio_button("user", "receive_newsletter", "no")
# => <input type="radio" id="user_receive_newsletter_yes" name="user[receive_newsletter]" value="yes" />
# <input type="radio" id="user_receive_newsletter_no" name="user[receive_newsletter]" value="no" checked="checked" />
Parameters
-
object_namereq -
methodreq -
tag_valuereq -
optionsopt = {}
Source
# File actionpack/lib/action_view/helpers/form_helper.rb, line 515
def radio_button(object_name, method, tag_value, options = {})
InstanceTag.new(object_name, method, self, options.delete(:object)).to_radio_button_tag(tag_value, options)
end
Defined in actionpack/lib/action_view/helpers/form_helper.rb line 515
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Defined in ActionView::Helpers::FormHelper