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module Formtastic
module Inputs
# Boolean inputs are used to render an input for a single checkbox, typically for attributes
# with a simple yes/no or true/false value. Boolean inputs are used by default for boolean
# database columns.
#
# @example Full form context and markup
# <%= semantic_form_for @post %>
# <%= f.inputs do %>
# <%= f.input :published, :as => :boolean %>
# <% end %>
# <% end %>
#
# <form...>
# <fieldset>
# <ol>
# <li class="boolean" id="post_published_input">
# <input type="hidden" name="post[published]" id="post_published" value="0">
# <label for="post_published">
# <input type="checkbox" name="post[published]" id="post_published" value="1">
# Published?
# </label>
# </li>
# </ol>
# </fieldset>
# </form>
#
# @example Set the values for the checked and unchecked states
# <%= f.input :published, :checked_value => "yes", :unchecked_value => "no" %>
#
# @see Formtastic::Helpers::InputsHelper#input InputsHelper#input for full documentation of all possible options.
class BooleanInput
include Base
def to_html
input_wrapping do
hidden_field_html <<
label_with_nested_checkbox
end
end
def hidden_field_html
template.hidden_field_tag(input_html_options[:name], unchecked_value, :id => nil, :disabled => input_html_options[:disabled] )
end
def label_with_nested_checkbox
builder.label(
method,
label_text_with_embedded_checkbox,
label_html_options
)
end
def label_html_options
{
:for => input_html_options[:id],
:class => super[:class] - ['label'] # remove 'label' class
}
end
def label_text_with_embedded_checkbox
check_box_html << "" << label_text
end
def check_box_html
template.check_box_tag("#{object_name}[#{method}]", checked_value, checked?, input_html_options)
end
def unchecked_value
options[:unchecked_value] || '0'
end
def checked_value
options[:checked_value] || '1'
end
def responds_to_global_required?
false
end
def input_html_options
{:name => input_html_options_name}.merge(super)
end
def input_html_options_name
if builder.options.key?(:index)
"#{object_name}[#{builder.options[:index]}][#{method}]"
else
"#{object_name}[#{method}]"
end
end
def checked?
object && boolean_checked?(object.send(method), checked_value)
end
private
def boolean_checked?(value, checked_value)
case value
when TrueClass, FalseClass
value
when NilClass
false
when Integer
value == checked_value.to_i
when String
value == checked_value
when Array
value.include?(checked_value)
else
value.to_i != 0
end
end
end
end
end