在Ruby on Rails中使用带有嵌套模型的自定义表单构建器
我正在使用Railscast 197（ASCIIcast here）中的嵌套模型表单技术。但我遇到了我的设置问题，我需要为我的一个嵌套模型的部分使用自定义表单构建器。我通过修改link_to_add_fields_helper来实现它的工作，就像这样......
def link_to_add_fields(name, f, association)
new_object = f.object.class.reflect_on_association(association).klass.new
fields = f.fields_for(association, new_object, :child_index => "new_#{association}", :builder => AnswerFormBuilder) do |builder|
#was...
#fields = f.fields_for(association, new_object, :child_index => "new_#{association}") do |builder|
render(association.to_s.singularize + "_fields", :f => builder)
end
link_to_function(name, h("add_fields(this, "#{association}", "#{escape_javascript(fields)}")"))
end
没有找到相关结果
已邀请:
1 个回复
悸翠疮武昏
def link_to_add_fields(name, f, association, options = {}) new_object = f.object.class.reflect_on_association(association).klass.new fields = f.fields_for(association, new_object, :child_index => "new_#{association}", :builder => options[:builder]) do |builder| render(association.to_s.singularize + "_fields", :f => builder) end link_to_function(name, h("add_fields(this, "#{association}", "#{escape_javascript(fields)}")")) end如果没有散列（或no：构建器键值对）传递给link_add_fields，则fields_for方法默认为常规表单构建器。