Question

我需要验证是否已将信用分配到表单中的跟踪。该曲目正在保存，errors.add无效。想法？

class Track
  has_many :credits
  accepts_nested_attributes_for :credits, allow_destroy: true
  attr_accessible :credits_attributes

  has_many :vendors, through: :credits
  accepts_nested_attributes_for :vendors
  attr_accessible :vendor_ids
end

尝试验证表单的Credit位是否填写在Track编辑页面上：

def verify_credits
  @track = Track.find(params[:id])
  if !params.has_key?(:split) || params[:track][:credits_attributes][:vendor_id].empty? 
    puts '*' * 300
    @track.errors.add(:base, 'You must credit this track to a Vendor with a split')
  end
end

我在ActiveAdmin track.rb中覆盖的控制器操作中调用verify_credits。放置＆＃39; *＆＃39;即将到来所以我知道我的条件很好。例如：

def update

  referrer = params[:track][:referrer]
  params[:track].delete(:referrer)

  s3_path = params[:track][:file_cache] if params[:track][:file_cache]
  params[:track].delete(:file_cache) unless s3_path.empty?

  @track = Track.find(params[:id])
  @track.assign_attributes(params[:exclusivities])
  verify_credits
  authorize! :update, @track
  if s3_path
    Delayed::Job.enqueue ProcessTrackFileJob.new(@track.id, s3_path) unless s3_path.empty?
  end
  super do |format|
    format.html { redirect_to referrer } unless referrer.to_s.empty?
  end
end

增加：

_form.html.erb

    <%= f.inputs "Vendors" do %>
      <% f.has_many :credits do |c|%>
        <% c.input :vendor, as: :string, required: true, input_html: { %>
          <% class: 'autocomplete', %>
          <% name: '', %>
          <% value: c.object.vendor.try(:name), %>
          <% data: { %>
            <% url: autocomplete_manage_vendors_path %>
          <% } %>
        <% } %>
        <% c.input :vendor_id, as: :hidden %>
        <% c.input :_destroy, as: :boolean, required: false, label: "Remove" %>
        <% c.input :split %>
      <% end %>
     <% end %>
  <% end %>

Answer 1

您的Track模型中没有任何验证。如果您要确保有vendor_id，则validates :vendor_id, presence: true模型中需要Track。如果没有，则Track型号不知道如果缺少vendor_id则会出现错误。

如果为空参数，则添加验证和错误消息

1 个答案: