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module ActionView
module Helpers
module Tags # :nodoc:
module CollectionHelpers # :nodoc:
class Builder # :nodoc:
attr_reader :object, :text, :value
def initialize(template_object, object_name, method_name, object,
sanitized_attribute_name, text, value, input_html_options)
@template_object = template_object
@object_name = object_name
@method_name = method_name
@object = object
@sanitized_attribute_name = sanitized_attribute_name
@text = text
@value = value
@input_html_options = input_html_options
end
def label(label_html_options={}, &block)
html_options = label_html_options.merge(@input_html_options)
@template_object.label(@object_name, @sanitized_attribute_name, @text, html_options, &block)
end
end
def initialize(object_name, method_name, template_object, collection, value_method, text_method, options, html_options)
@collection = collection
@value_method = value_method
@text_method = text_method
@html_options = html_options
super(object_name, method_name, template_object, options)
end
private
def instantiate_builder(builder_class, item, value, text, html_options)
builder_class.new(@template_object, @object_name, @method_name, item,
sanitize_attribute_name(value), text, value, html_options)
end
# Generate default options for collection helpers, such as :checked and
# :disabled.
def default_html_options_for_collection(item, value) #:nodoc:
html_options = @html_options.dup
[:checked, :selected, :disabled].each do |option|
current_value = @options[option]
next if current_value.nil?
accept = if current_value.respond_to?(:call)
current_value.call(item)
else
Array(current_value).map(&:to_s).include?(value.to_s)
end
if accept
html_options[option] = true
elsif option == :checked
html_options[option] = false
end
end
html_options[:object] = @object
html_options
end
def sanitize_attribute_name(value) #:nodoc:
"#{sanitized_method_name}_#{sanitized_value(value)}"
end
def render_collection #:nodoc:
@collection.map do |item|
value = value_for_collection(item, @value_method)
text = value_for_collection(item, @text_method)
default_html_options = default_html_options_for_collection(item, value)
additional_html_options = option_html_attributes(item)
yield item, value, text, default_html_options.merge(additional_html_options)
end.join.html_safe
end
end
end
end
end
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