我在 Rails 3 应用程序上使用 formtastic 和 haml。我正在尝试为调查和问题制作嵌套表格,但这对我不起作用。我已经看过 railscast 及其上的所有内容,但我似乎无法让它适用于我的应用程序。所以现在,我有以下内容:
楷模
class Survey < ActiveRecord::Base
attr_accessible :intro, :name, :pubdate, :enddate, :pubid
belongs_to :user
has_many :questions, :dependent => :destroy, :autosave => true
accepts_nested_attributes_for :questions, :allow_destroy => true
end
class Question < ActiveRecord::Base
belongs_to :survey
has_many :answers, :dependent => :destroy
attr_accessible :q_text, :order, :q_type
end
相关控制器方法
def update
@survey = Survey.find(params[:id])
@user = current_user
if check_auth_and_redirect @user, @survey
if @survey.update_attributes(params[:survey])
flash[:success] = "Survey Updated"
redirect_to edit_survey_path(@survey)
else
@title = "Editing Survey #{@survey.id}"
render 'edit'
end
end
end
意见
= semantic_form_for @survey do |f|
= render "shared/survey_inputs", :object => f
= f.inputs :for => :questions, :name => "Survey Questions" do |fq|
%hr
= fq.input :q_text, :label => "Question text"
= fq.input :q_type,
:label => "Question type",
:as => :select,
:collection => %w(text scale radio select)
= fq.input :order, :label => "Question order"
表单正确呈现,但是当我更改问题并单击保存时,记录不会反映我的更改。我确实打开了调试(参数),这是它的返回结果:
--- !map:ActiveSupport::HashWithIndifferentAccess
utf8: "\xE2\x9C\x93"
_method: put
authenticity_token: CJCc9LvdoPjxwGJkhUnZjR0Z/c5Wt5VBT3bBr/wB4+A=
survey: !map:ActiveSupport::HashWithIndifferentAccess
name: This is my survey
intro: I've got a lovely bunch of coconuts. There they are all standing in a row.
pubid: smargdab
pubdate(1i): ""
pubdate(2i): ""
pubdate(3i): ""
enddate(1i): ""
enddate(2i): ""
enddate(3i): ""
questions_attributes: !map:ActiveSupport::HashWithIndifferentAccess
"0": !map:ActiveSupport::HashWithIndifferentAccess
q_text: one one one one one one one one one one one
q_type: text
order: "3"
id: "1"
"1": !map:ActiveSupport::HashWithIndifferentAccess
q_text: 2 2 2 2 2 2 2 2 2 2
q_type: text
order: "1"
id: "2"
"2": !map:ActiveSupport::HashWithIndifferentAccess
q_text: 3 3 3 3 3 3 3 3 3 3
q_type: text
order: "2"
id: "3"
commit: Update Survey
action: update
controller: surveys
id: "2"
我在这里做错了什么?我不想手动编写这些属性更改器!