轨道accepts_nested_attributes_for语言 - 简单表单

Question

我有以下AR模型：

class Branch < ActiveRecord::Base
has_many :branch_delivery_schedules, :class_name => 'BranchDeliverySchedule', :foreign_key => :branch_id
accepts_nested_attributes_for :branch_delivery_schedules, :allow_destroy => true
end

class BranchDeliverySchedule < ActiveRecord::Base
validates :opening_time, :closing_time, presence: true
belongs_to :day_of_week, :class_name => 'DayOfWeek', :foreign_key => :id_day_of_week
belongs_to :branch, :class_name => 'Branch', :foreign_key => :branch_id
end

分支机构有许多交货计划(每天一个，M 到 S(。

因此，当我尝试创建新分支时，在分支的窗体中，我设置了 BranchDeliverySchedule 的simple_fields_for。

<%= simple_form_for(@branch, html: { class: 'form-foodwish' } ) do |f| %>
<%= f.error_notification %>
<!-- BRANCH FIELDS... -->
<% (1..7).each do |w| %>
<%= simple_fields_for 'branch[branch_delivery_schedules_attributes][]', BranchDeliverySchedule.new({ day_of_week: w, opening_time: '11:00', closing_time: '11:00' }) do |p| %>
<%= p.input :id, as: :hidden %>
<%= p.input :branch_id, as: :hidden %>
<!-- DAY OF WEEK PLACEHOLDER -->
<%= p.input :day_of_week, as: :hidden, input_html: { value: w } %>
<%= p.input :opening_time,  as: :time, html5: true %>
<%= p.input :closing_time,  as: :time, html5: true %>
<% end %>
<% end %>
<% end %>

然后我的控制器中有强参数：

def branch_params
params.require(:branch).permit(:id, ..., branch_delivery_schedules_attributes: [ :id, :opening_time, :closing_time, :day_of_week, :branch_id] )  
end

一切正常，正在创建 7 个交付时间表。问题是：

1.- 如何显示分支机构交付计划验证错误？(现在它只是静默失败，不让我保存分支，这很好，但我需要显示验证错误(

2.- 如何保留simple_fields_for中的值？，当我提交表格时，时间选择器中的值将丢失。

谢谢，如果您需要更多信息，请告诉我。

导轨版本：4.2.6

简单表单版本：3.4.0

Answer 1

控制器

@branch =  Branch.new
(1..7).each { |w| @branch.branch_delivery_schedules.new(day_of_week: w, opening_time: '11:00', closing_time: '11:00') }

视图

<%= f.simple_fields_for :branch_delivery_schedules do |p| %>
<%= p.input :day_of_week, as: :hidden, input_html: { value: p.object.day_of_week } %>
<%= p.input :opening_time,  as: :time, html5: true %>
<%= p.input :closing_time,  as: :time, html5: true %>
<% end %>