表格未提交數據

Question

我有一個表單，其中包含一些應填充到我的數據庫中的字段，而沒有。 我不確定為什么會這樣。 我定義了解決另一個錯誤的參數，但未存儲我的數據。 我的表名是用戶。

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"=>"✓", "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)

編輯：我的表單確實提交了數據，但是在保存時拋出了此錯誤

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

Answer 1

我不使用new而是使用update並刪除了save ，因為新執行的保存參數和save試圖保存nil參數。 我不是在創建新用戶，而是要向現有用戶添加新參數。 這就是為什么發生錯誤。 完整的最終代碼如下。

  def create
    respond_to do |format|
      if User.update(user_params)
        format.html { redirect_to profile_page_index_path, notice: 'Landlord application successfully submitted.' }
        format.json { render :show, status: :created, location: @user }
      else       
        format.html { redirect_to profile_page_index_path, notice: 'Landlord application was not successfully submitted.' }
        format.json { render :show, status: :unprocessable_entity }
      end
    end
  end

Answer 2

如前所述，問題可能是驗證錯誤。 如果您要更新用戶，則需要使用update方法，並將用戶傳遞給表單

form_for @user

提交表單后，這會將PATCH請求發送到控制器上的update方法。

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

  redirect_to profile_page_index_path
end