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# File 'lib/china_regions/helpers/form_helper.rb', line 7
def region_select(object_name, methods, options = {}, html_options = {})
output = ''
preselected_choices = setup_regions_options(options)
html_options[:class] ?
html_options[:class].prepend('region_select ') :
(html_options[:class] = 'region_select')
dropdown_prefix = options[:prefix] ? options[:prefix].to_s + '_' : ''
if Array == methods
methods.each_with_index do |method, index|
if region_klass = method.to_s.classify.safe_constantize
choices = fetch_choices(region_klass, method, preselected_choices, index)
choices = prioritize_choices(options[:priority][method], choices) if options[:priority].try(:[], method)
next_method = methods.at(index + 1)
set_prompt(method, options, region_klass)
set_html_options(object_name, method, html_options, next_method, dropdown_prefix)
if options[:default] && options[:default][method]
options[:selected] = options[:default][method] if options[:default][method]
end
output << select(object_name, "#{dropdown_prefix}#{method}_id", choices, options, html_options)
else
raise "Method '#{method}' is not a vaild attribute of #{object_name}"
end
end
else
inner_methods = if methods.to_s.include?('_id')
inner_methods = methods
methods = methods.to_s.gsub(/(_id)$/, '')
inner_methods
else
(methods.to_s + '_id').to_sym
end
if region_klass = methods.to_s.classify.safe_constantize
options[:prompt] = region_prompt(region_klass)
options[:selected] = preselected_choices[:province_id] if methods == :province && preselected_choices[:province_id]
output << select(object_name, inner_methods, region_klass.where(nil).collect { |p| [p.name, p.id] }, options = options, html_options = html_options)
else
raise "Method '#{method}' is not a vaild attribute of #{object_name}"
end
end
output.html_safe
end
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