ruby-on-rails – 为什么我的参数超出范围异常

<%= form_for @wine do |f| %>
    <%# render "errors",object: @wine %>
    <div class="form-group input-group input-group-lg">
        <%= f.text_field :name,placeholder: "Enter the winery name",class: "form-control input-lg" %>
    </div>
    <div class="form-group input-group input-group-lg">
        <%= select_year(Date.today,start_year: Time.now.year,end_year: Time.now.year - 90,field_name: :year,prefix: :wine) %>
    </div>
    <div class="form_group input-group">
        <%= f.submit "Add wine",class: "btn btn-success" %>
    </div>
<% end %>

这是我的控制器

class WinesController < ApplicationController
  before_action :set_wine,only: [:show,:edit,:update,:destroy]

  def index
    @wines = Wine.all
  end

  def new
    @wine = Wine.new
  end

  def create
    @wine = Wine.new(wine_params)
    if @wine.save
        flash[:notice] = "Successfully created..."
        redirect_to @wine
    else
        flash.now[:error] = "There was a problem"   
        render "new"
    end
  end

  def show
  end

  def edit
  end

  def update
    if @wine.update(wine_params)
        redirect_to @wine
    else
        flash[:error] = "Something went wrong"
        render "edit"
    end
  end

  def destroy
    @wine.destroy
    redirect_to wines_path
  end

  private

    def set_wine
        @wine = Wine.find(params[:id])
    end

    def wine_params
        params.require(:wine).permit(:name,:year)
    end
end

我的葡萄酒表有一个名称：字符串列和年份：日期时间列

每当我尝试创建一个新的葡萄酒时,我会得到一个超出范围异常的参数,并在我的创建操作中突出显示@wine = Wine.new(wine_params).我究竟做错了什么？

我的日志

Started GET "/wines/new" for 127.0.0.1 at 2013-09-04 10:55:54 -0700
Processing by WinesController#new as HTML
  Rendered wines/_form.html.erb (2.0ms)
  Rendered wines/new.html.erb within layouts/application (2.6ms)
  Rendered layouts/_header.html.erb (0.2ms)
  Rendered layouts/_footer.html.erb (0.1ms)
Completed 200 OK in 10ms (Views: 9.3ms | ActiveRecord: 0.0ms)


Started GET "/assets/comingsoonbg.png" for 127.0.0.1 at 2013-09-04 10:55:54 -0700


Started GET "/wines/new" for 127.0.0.1 at 2013-09-04 10:55:54 -0700
Processing by WinesController#new as HTML
  Rendered wines/_form.html.erb (2.1ms)
  Rendered wines/new.html.erb within layouts/application (2.7ms)
  Rendered layouts/_header.html.erb (0.2ms)
  Rendered layouts/_footer.html.erb (0.1ms)
Completed 200 OK in 10ms (Views: 9.8ms | ActiveRecord: 0.0ms)


Started POST "/wines" for 127.0.0.1 at 2013-09-04 10:55:59 -0700
Processing by WinesController#create as HTML
  Parameters: {"utf8"=>"?","authenticity_token"=>"FCd3wvCov+mugnJuzwplKD/eVskJKgxweh1mK0pG2wM=","wine"=>{"name"=>"kjkljhk","year"=>"2013"},"commit"=>"Add wine"}
Completed 500 Internal Server Error in 1ms

ArgumentError (argument out of range):
  app/controllers/wines_controller.rb:13:in `create'


  Rendered /Users/me/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (0.7ms)
  Rendered /Users/me/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_trace.erb (0.9ms)
  Rendered /Users/me/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (0.9ms)
  Rendered /Users/me/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (16.2ms)

我在schema.rb中的葡萄酒架构

create_table "wines",force: true do |t|
    t.datetime "year"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "name"
  end