Rails accepts_nested_attributes_for-簡單表單表單

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

分支機構有許多交貨時間表（每天一個，從M到S）。

因此，在嘗試創建新分支時，以分支的形式，我為BranchDeliverySchedules設置了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很強的參數：

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，正在創建7個交貨計划。 問題是：

1.-如何顯示分行交貨時間表驗證錯誤？ （現在它只是默默地失敗了，不允許我保存分支，這很好，但是我需要顯示驗證錯誤）

2.-如何在我提交表單時將值保留在時間選擇器中而丟失的simple_fields_for ？

謝謝，讓我知道您是否需要更多信息。

Rails版本：4.2.6

簡單表格版本：3.4.0

Answer 1

調節器

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

視圖

<%= 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 %>