我的表单参数没有保存/插入到我的数据库，即使表单正在提交参数

Question

这是我的表格：

    <form class="form-horizontal">
        <%= simple_form_for SkyscraperApplications.create, :url=>"/about/skyscraper/submit", :method=>"post" do |f| %>
      <div class="control-group">
        <label class="control-label" for="name"><%=t ".company_name"%></label>
        <div class="controls">
          <div><%= f.input :name,  :label=>false %></div>
        </div>
      </div>
      <div class="control-group">
        <label class="control-label" for="employees"><%=t ".no_of_employees"%></label>
        <div class="controls">
          <div><%= f.input :employee_count, :label=>false %></div>
        </div>
      </div>
      <div class="control-group">
        <label class="control-label" for="employees"><%=t ".usecase"%></label>
        <div class="controls">
          <%= f.select :usecase, options_for_select([["Select One", ""], "CAD/Render", "Video Production/Editing", "Music Production", "Game Design", "Email/Web", "Other"])%>
        </div>
      </div>
      <div class="control-group">
        <label class="control-label" for="Administrator"><%=t ".admin_email"%></label>
        <div class="controls">
          <div><%= f.input :email_admin, :label=>false %></div>
        </div>
      </div>
      <div class="control-group">
        <label class="control-label" for="Administrator"><%=t ".what_you_do"%></label>
        <div class="controls">
        <div><%= f.input :what_you_do, :label=>false, :as => :text, :input_html => { :rows => 4 }%></div>
      </div>
      </div>
      <div class="control-group">
        <div class="controls">
          <div class="test-drive-submit"><%= f.button :submit, t(".submit")%></div>
        </div>
      </div>
    </form>

这是我的控制器方法：

def create
if @skyscraper=SkyscraperApplications.new(:email_admin => params[:skyscraper_applications][:email_admin],:employee_count=>params[:skyscraper_applications][:employee_count],:name=>params[:skyscraper_applications][:name],:usecase=>params[:skyscraper_applications][:usecase],:what_you_do=>params[:skyscraper_applications][:what_you_do])
 @skyscraper.save
    redirect_to "/about/skyscraper", :notice => t("skyscraper_saved")

else
 redirect_to "/about/skyscraper", :notice => t("skyscraper_failed")

end 

这是我的控制台：

Processing by AboutController#skyscraper as HTML
  Parameters: {"utf8"=>"✓",     "authenticity_token"=>"fpIBeQKOqnP1As118fWwG5/LXdyT3QL5dLBYRDgkGNq8PfwldrvC9QrsZnJ+pX9+mvhCN3N9yW9p2q7fdhDdhg==", "skyscraper_applications"=>{"name"=>"example", "employee_count"=>"5", "usecase"=>"CAD/Render", "email_admin"=>"email@email.com", "what_you_do"=>"example"}, "commit"=>"Submit"}

  SkyRoutine Load (1.0ms)  SELECT  "sky_routines".* FROM "sky_routines"  ORDER BY "sky_routines"."id" ASC LIMIT 1

   (0.1ms)  begin transaction
  SQL (0.8ms)  INSERT INTO "skyscraper_applications" ("created_at", "updated_at") VALUES (?, ?)  [["created_at", "2015-04-16 19:29:16.070954"], ["updated_at", "2015-04-16 19:29:16.070954"]]
   (2.1ms)  commit transaction
  Rendered about/skyscraper.html.erb within layouts/application (23.6ms)
  Rendered layouts/_navigation.html.erb (1.3ms)
  Rendered layouts/_messages.html.erb (0.2ms)
  Rendered layouts/_footer.html.erb (0.8ms)
Completed 200 OK in 90ms (Views: 82.2ms | ActiveRecord: 4.0ms)

如您所见，我提交了表单，它会获取参数但不会插入到我的数据库中并按我想要的方式保存。我做错了什么？！

Answer 1

问题是您已经为要保存的属性定义了attr_accessors。 attr_accessor 定义了 setter 和 getter 方法，它们覆盖了任何同名的属性。删除 attr_accessors 后，Rails 应将值保存到数据库中。

Answer 2

假设你使用的是 Rails 4.0.0 或更高版本，在进行批量赋值时需要使用强参数。您还需要在控制器中修复您的逻辑。它应该是这样的：

def create
  @skyscraper = SkyscraperApplications.new(sky_scraper_params)
  if @skyscraper.save
    redirect_to "/about/skyscraper", :notice => t("skyscraper_saved")
  else
    redirect_to "/about/skyscraper", :notice => t("skyscraper_failed")
end

private

def  sky_scraper_params
  params.require(:skyscraper_applications).permit(:name, :employee_count, :usecase, :email_admin, :what_you_do
end