Question

我有一个表单，其中有一些字段应填充到我的数据库中，而不是。我不确定为什么会这样。我定义了修复另一个错误但我的数据没有被存储的参数。我的表名是用户。

我的控制器：

 Class LandlordPageController < ApplicationController
      before_action :get_user

      def get_user
        @user = current_User
      end

      def index
      end

      def show
      end

      def create
          @user = User.new(user_params)
          @user.save
          redirect_to profile_page_index_path
      end

      private

        def user_params
          params.require(:user).permit(:address, :cityResiding, :ssn, :birthDate, :gender, :phoneNumber)
      end
end

我的表格：

<%= form_for :user do |f| %>

    <div class="field">
      <%=f.label :address, 'Current Address' %><br/>
      <%=   f.text_field :address, :required => 'required' %>
    </div>

    <div class="field">
      <%=f.label :cityResiding, 'Current City' %><br/>
      <%=   f.text_field :cityResiding, :required => 'required' %>
    </div>

    <div class="field">
      <%=f.label :phoneNumber, 'Phone Number'%><br/>
      <%= f.telephone_field :phoneNumber, maxlength: 15, :required => 'required' %>
    </div>

    <div class="field">
      <%=f.label :gender, 'Gender'%><br/>
      <%= f.select :gender, ['',' Male', 'Female', 'Other','Prefer Not to Answer']%>
    </div>

    <div class="field">
      <%=f.label :birthDate, 'Birth Date'%><br/>
      <%= f.date_select :birthDate, order: [:month, :day, :year], :required => 'required'%>
    </div>

    <div class="field">
      <%=f.label :ssn, 'Social Security Number' %><br/>
      <%=   f.text_field :ssn, maxlength: 9 %>
    </div>

    <div class="actions">
      <%= f.submit "Submit Information" %>
    </div>

<% end %>

日志：

Started GET "/landlord_page" for 127.0.0.1 at 2016-11-06 17:59:58 -0500
Processing by LandlordPageController#index as HTML
  User Load (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ?  [["id", 1], ["LIMIT", 1]]
  Rendering landlord_page/index.html.erb within layouts/application
  Rendered landlord_page/index.html.erb within layouts/application (4.0ms)
  Rendered layouts/_navbar.html.erb (1.0ms)
Completed 200 OK in 98ms (Views: 88.4ms | ActiveRecord: 0.0ms)


Started POST "/landlord_page" for 127.0.0.1 at 2016-11-06 18:00:06 -0500
Processing by LandlordPageController#create as HTML
  Parameters: {"utf8"=>"âœ“", "authenticity_token"=>"98tUidqprFyTG8ZC/tV9TRDIVlV0I+ocnQfKTUDqorlS+JMFHtaCWz69EwBvH5MrHhnRbg93m695//Z1I5xt3A==", "user"=>{"address"=>"1", "cityResiding"=>"1", "phoneNumber"=>"1", "gender"=>" Male", "birthDate(2i)"=>"11", "birthDate(3i)"=>"6", "birthDate(1i)"=>"2016", "ssn"=>""}, "commit"=>"Submit Information"}
  User Load (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ?  [["id", 1], ["LIMIT", 1]]
   (0.0ms)  begin transaction
   (0.0ms)  rollback transaction
Redirected to http://localhost:3000/profile_page
Completed 302 Found in 4ms (ActiveRecord: 0.0ms)

编辑：我的表单确实提交了数据，但保存时会抛出此错误

NoMethodError in LandlordPageController#create
undefined method `save' for #<Array:0x0000000d883a08>

Answer 1

而不是function toggleClassFunction() { $('nav').toggleClass('light-mode'); } var waypoint = new Waypoint({ element: document.getElementById('id-of-element-when-scrolled-to-event-triggers'), handler: function(direction) { if (direction === 'down') { toggleClassFunction(); // the function that runs this.destroy() //runs the function once } else { } }, offset: 250 //since the event triggers once the element reaches the top of the page, we //sometimes need an offset. so in this example, when the element is 250px from //the top of the page, the even triggers });我使用了new并删除了update，因为已经执行的新保存参数并保存是尝试保存nil参数。我没有创建 new 用户，但意味着向现有用户添加新参数。这就是发生错误的原因。完整的最终代码如下。

save

Answer 2

如前所述，问题可能是验证错误。如果您要更新用户，则需要使用update方法并将用户传递给表单

form_for @user

一旦表单提交，这将向控制器上的PATCH方法发送update请求。

def update
  @user.update user_params
  if ! @user.valid?
    flash[:error] = @user.errors.full_messages
  end

  redirect_to profile_page_index_path
end

表单不提交数据

2 个答案: