Question

由于某种原因，该表格似乎可以按预期工作，但无法正确处理：

这是发送到我的Paragraph＃create方法的参数

Parameters: {"utf8"=>"✓", "authenticity_token"=>"s6V7WS6NZwcu4ZAeSenkEgVEd6MrrDD1asMjPEOuZHyglMKoGQ/5cP/USzF/5MJV3wyFn+siC2t47dSFkVtuVQ==", "paragraph"=>{"sentiments_attributes"=>{"0"=>{"body"=>"test"}}}}

我尝试提交表单时遇到此错误：Sentiments body can't be blank

 #paragraphs_controller.rb
  def create
    @paragraph = Paragraph.new(paragraph_params)
    @paragraph.sentiments.build
    if @paragraph.save
      redirect_to root_url
    else
      puts @paragraph.errors.full_messages
      redirect_to root_url
    end
  end

  private
  def paragraph_params
    params.require(:paragraph).permit(:sentiments_attributes => [:body])
  end

我有2个模型，情感和段落。本段是情绪的集合。因此，如果我有一个用于创建新段落的表格，它将同时创建一种情感。

class Sentiment < ApplicationRecord
  belongs_to :paragraph, optional: true
  validates :body, presence: true

end
class Paragraph < ApplicationRecord
  has_many :sentiments
  accepts_nested_attributes_for :sentiments

end

<%= form_for(@paragraph) do |f| %>
  <%= f.fields_for :sentiments do |u| %>
        <%= u.text_area :body %>
  <% end  %>
  <%= f.submit %>
<% end %>

已更新

需要从@paragraph.sentiments.build删除paragraphs_controller#create

Answer 1

需要从parasss_controller＃create中删除@ paragraph.sentiments.build

Rails表单未保存关联属性

1 个答案: