我的任务有很多约会。创建新任务时，我只有一个约会（因为约会只能一次创建一个）。我对new和create动作没有任何问题，约会将被验证保存到db。问题是当我编辑任务时，子表单（约会）没有验证也没有更新。
任务控制器中的强大参数：
def task_params
params.require(:task).permit(:category_id, :subcategory_id, :title, :description, :pay_offer, :is_pay_per_hour, :county_id, :area_id,
appointments_attributes: [:id, :start_date, :start_time, :duration])
end
任务：
has_many :appointments, :dependent => :destroy
accepts_nested_attributes_for :appointments
预约：
belongs_to :task
任务控制器中的操作：
def new
@task = current_user.task_posts.build
@task.appointments.build
end
def create
@task = current_user.task_posts.build(task_params)
if @task.save
flash[:success] = "Micropost created!"
redirect_to @current_user
else
render 'new'
end
end
def edit
@task = Task.find(params[:id])
@task.county_id = @task.county.id
@task.category_id = @task.category.id
@task.appointments.first
end
def update
@task = Task.find(params[:id])
if @task.update_attributes(task_params)
flash[:success] = "Task updated"
redirect_to @task
else
render 'edit'
end
end
编辑和新模板：
<%= simple_form_for @task, html: {class: 'form-horizontal'}, wrapper: :horizontal_input_group do |f| %>
.....some fields of @task
<% f.simple_fields_for :appointments do |b| %>
<%= b.input :start_date, label: "Start date", wrapper: :horizontal_input_group do %>
<%= b.input_field :start_date, placeholder: 'Set ', class: "form-control date start" %><span class="input-group-addon"><span class="glyphicon glyphicon-calendar"></span></span>
<% end %>
<%= b.input :start_time, label: "Start time", wrapper: :horizontal_input_group do %>
<%= b.input_field :start_time, placeholder: 'Starting time at', as: :string, class: "form-control time start" %><span class="input-group-addon"><span class="glyphicon glyphicon-time"></span></span>
<% end %>
<%= b.input :duration, label: "Duration", wrapper: :horizontal_input_group do %>
<%= b.input_field :duration, placeholder: 'Duration', as: :integer, class: "form-control", min: "1", max: "8"%>
<span class="input-group-addon" id="hour-addon">Hour(s)</span>
<% end %>
<% end %>
一些情景：
假设日期时间是2015年4月28日上午7:00。 如果我去编辑表格并将开始日期和时间更改为2015年5月2日凌晨2:00，这就是我将在控制台中获得的内容：
Started PATCH "/tasks/121" for ::1 at 2015-04-21 11:19:20 +0100
Processing by TasksController#update as HTML
Parameters: {"utf8"=>"V", "authenticity_token"=>"+Qfn0bsSEHWXxnHFAQCpr/rAL8OkY
ichj2FDfAXF8siWu3/NsZlj2O3N5PptcCqy8PyhH3/mIT4/ZOvozoh9hw==", "task"=>{"category
_id"=>"1", "subcategory_id"=>"2", "title"=>"ssdsdsssdasdsdddddddddd", "descripti
on"=>"sdsdsssssssssssssssssssssssss", "county_id"=>"15", "area_id"=>"659", "is_p
ay_per_hour"=>"0", "pay_offer"=>"29", "appointments_attributes"=>{"0"=>{"start_d
ate"=>"2/5/2015", "start_time"=>"02:00 AM", "duration"=>"0", "id"=>"134"}}}, "co
mmit"=>"Update Task", "id"=>"121"}
Task Load (1.0ms) SELECT `tasks`.* FROM `tasks` WHERE `tasks`.`id` = 121 OR
DER BY created_at DESC LIMIT 1
(0.0ms) BEGIN
Appointment Load (1.0ms) SELECT `appointments`.* FROM `appointments` WHERE `a
ppointments`.`task_id` = 121 AND `appointments`.`id` = 134
(0.0ms) COMMIT
它仍然是2015年4月28日，上午7:00。
COMPLETE CONSOLE LOG：
Started PATCH "/tasks/131" for ::1 at 2015-04-21 11:41:49 +0100
Processing by TasksController#update as HTML
Parameters: {"utf8"=>"V", "authenticity_token"=>"iP++ZG5VpAevK2awi6vaoixVDA8zc
BI7b0IducbwmvvnQyZ4ZN7XqtUg84/n21m/JmmC0+j0FCTfR7UtDb0VtA==", "task"=>{"category
_id"=>"1", "subcategory_id"=>"3", "title"=>"dddddddddddddddddddddddddddddd", "de
scription"=>"ddddddddddddddddddddddddddddddddddddddddddd", "county_id"=>"17", "a
rea_id"=>"723", "is_pay_per_hour"=>"0", "pay_offer"=>"22", "appointments_attribu
tes"=>{"0"=>{"start_date"=>"2/5/2015", "start_time"=>"02:00 AM", "duration"=>"0"
, "id"=>"145"}}}, "commit"=>"Update Task", "id"=>"131"}
Task Load (0.0ms) SELECT `tasks`.* FROM `tasks` WHERE `tasks`.`id` = 131 OR
DER BY created_at DESC LIMIT 1
(0.0ms) BEGIN
Appointment Load (0.0ms) SELECT `appointments`.* FROM `appointments` WHERE `a
ppointments`.`task_id` = 131 AND `appointments`.`id` = 145
(0.0ms) COMMIT
Redirected to http://localhost:3000/tasks/131
Completed 302 Found in 11ms (ActiveRecord: 0.0ms)
Started GET "/tasks/131" for ::1 at 2015-04-21 11:41:49 +0100
Processing by TasksController#show as HTML
Parameters: {"id"=>"131"}
Task Load (0.0ms) SELECT `tasks`.* FROM `tasks` WHERE `tasks`.`id` = 131 OR
DER BY created_at DESC LIMIT 1
Response Load (0.0ms) SELECT `responses`.* FROM `responses` WHERE `responses`
.`task_id` = 131 ORDER BY created_at DESC
User Load (0.0ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 1 LIMIT
1
Area Load (0.0ms) SELECT `areas`.* FROM `areas` WHERE `areas`.`id` = 723 LIM
IT 1
County Load (0.0ms) SELECT `counties`.* FROM `counties` WHERE `counties`.`id
` = 17 LIMIT 1
Subcategory Load (0.0ms) SELECT `subcategories`.* FROM `subcategories` WHERE
`subcategories`.`id` = 3 LIMIT 1
Category Load (0.0ms) SELECT `categories`.* FROM `categories` WHERE `categor
ies`.`id` = 1 LIMIT 1
Rendered tasks/_task_info.html.erb (11.0ms)
CACHE (0.0ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 1 LIMIT 1
[["id", 1]]
Rendered tasks/_question_negotiation_form.html.erb (67.0ms)
Rendered collection (0.0ms)
Appointment Load (1.0ms) SELECT `appointments`.* FROM `appointments` WHERE `
appointments`.`task_id` = 131 ORDER BY `appointments`.`id` ASC LIMIT 1
CACHE (0.0ms) SELECT `appointments`.* FROM `appointments` WHERE `appointment
s`.`task_id` = 131 ORDER BY `appointments`.`id` ASC LIMIT 1 [["task_id", 131]]
CACHE (0.0ms) SELECT `appointments`.* FROM `appointments` WHERE `appointment
s`.`task_id` = 131 ORDER BY `appointments`.`id` ASC LIMIT 1 [["task_id", 131]]
CACHE (0.0ms) SELECT `appointments`.* FROM `appointments` WHERE `appointment
s`.`task_id` = 131 ORDER BY `appointments`.`id` ASC LIMIT 1 [["task_id", 131]]
Rendered tasks/_first_appointment_info.html.erb (6.0ms)
Rendered tasks/_appointed_worker.html.erb (9.0ms)
Rendered tasks/show.html.erb within layouts/application (96.1ms)
Rendered layouts/_header.html.erb (4.0ms)
Rendered layouts/_footer.html.erb (0.0ms)
Completed 200 OK in 149ms (Views: 143.1ms | ActiveRecord: 1.0ms)
Started GET "/assets/application-8636d652720c67486ff35a011cfcda8b.css" for ::1 a
t 2015-04-21 11:41:49 +0100
Started GET "/assets/application-fb8ea68f36532aeef58f0517a0a44ab7.js" for ::1 at
2015-04-21 11:41:49 +0100
有人可以帮我吗？