Rails,编辑操作不会使用同一模型的许多实例正确填充表单

Question

我是Rails的新手,我正在做我的第一个项目.另外,英语不是我的母语,请耐心等待.

我遇到的问题是我有一个具有相同模型的多个实例的表单,正在正确创建数据但是当我尝试编辑它时,表单以错误的方式填充.

我正在制作一个应用来检查一切是否符合规则.要检查的项目位于嵌套关联章节 - >子章节 - >检查中

每次提交检查时,都会创建一个CheckRound,并且每个检查的信息都会单独存储在CheckResults中.

CheckRounds

has_many :check_results, inverse_of: :check_round, dependent: :destroy
accepts_nested_attributes_for :check_results, reject_if: proc { |att| att['observation'].blank? }

CheckResults

belongs_to :check_round, optional: true, inverse_of: :check_results
belongs_to :check

章

has_many :subchapters

子章节

belongs_to: chapter
has_many: checks

检查

belongs_to :subchapter
has_many :check_results

该表单显示所有章节和嵌套的子章节和检查.每个Check都显示其名称,并将text_area作为输入.

用户可以填写任何一个或多个支票.

<%= form_for(@check_round, :url => {:action => 'update', :client_id => @client.id, :project_id => @project.id}) do |f| %>
  <% @chapters.each do |chapter| %>
    <%= chapter.name %>
    <% chapter.subchapters.each do |subchapter| %>
      <%= subchapter.name %>
      <% subchapter.checks.each do |check| %>
         <%= f.fields_for :check_results do |result| %>
            <%= check.name %>
            <%= result.hidden_field(:check_id, :value => check.id) %>
            <%= result.text_area(:observation, rows: 4, :id =>'obs' + check.id.to_s) %>
        <% end %>
      <% end %>
   <% end %>
  <% end %>
<% end %>

控制器是

def edit
  @check_round = CheckRound.includes(:check_results).find(params[:id])
  @chapters = Chapter.includes(subchapters: :checks).where("segment_id = ?", @project.segment_id).sorted
end

例如,如果,我认为check.id = 3有observation = "bad",当我走在它的观测编辑每张支票都有"坏"无论其ID的.

我想知道如何编辑所有带有空白观察的检查但是创建的检查.

在此先感谢您的时间!

Answer 1

这是我承诺的解决方案。

Sinds 你已经定义了带有空白观察的检查结果必须被拒绝，并且你的 erb 本身会涉及很多逻辑，我会把它全部放在一个辅助方法中，这样你的 erb 就会更干净。像这样的东西：

#helpers/check_rounds_helper.rb

def edit_or_instantiate_nested_check_results(f, check_round, check, new_check_result)
  if check.check_results
    f.fields_for :check_results, check_round.check_results.where(check_id: check.id) do |result|
      result.hidden_field(:check_id, :value => check.id)
      result.text_area(:observation, rows: 4, :id =>'obs' + check.id.to_s)
    end #end for the already present check results
    # if u want to add a new check result event if the check is populated
    f.fields_for :check_results, new_check_result do |new|
      new.hidden_field(:check_id, :value => check.id)
      new.text_area(:observation, rows: 4, :id =>'obs' + check.id.to_s)
    end #end for the new check result
  else #if there is no existing check result nest a form for a new one
    f.fields_for :check_results, new_check_result do |new|
      new.hidden_field(:check_id, :value => check.id)
      new.text_area(:observation, rows: 4, :id =>'obs' + check.id.to_s)
    end #end for the new check result
  end #end if statement
end

那么在你看来：

<%= form_for(@check_round, :url => {:action => 'update', :client_id => @client.id, :project_id => @project.id}) do |f| %>
  <% @chapters.each do |chapter| %>
    <%= chapter.name %>
    <% chapter.subchapters.each do |subchapter| %>
      <%= subchapter.name %>
      <% subchapter.checks.each do |check| %>
         <%= check.name %>
         <% new_check_result = CheckResult.new(check_round_id: @check_round.id, check_id = check.id) %>
         <%= edit_or_instantiate_nested_check_results(f, @check_round, check, new_check_result) %>
      <% end %>
   <% end %>
  <% end %>
<% end %>

应该就是这样;)。让我知道它是否有效：D！

克罗恩,