我有用户（通过设计）和艺术家。用户可以“喜欢”许多艺术家。艺术家受到许多用户的喜爱。
我在我的艺术家页面添加了一个喜欢/不同的按钮，基于@dwhalen在SO上找到的答案中的代码：https://stackoverflow.com/a/6483109
喜欢/不同作品 - 它更新数据库。但是，该按钮在网页上不会改变。我必须刷新整个网址才能看到“喜欢”转到“不同”按钮。在Chrome中，javascript控制台给出了404错误：
GET http://localhost:3000/likes/25 404 (Not Found) jquery.js?body=1:9667
在控制台中打开它：
send jquery.js?body=1:9667
jQuery.extend.ajax jquery.js?body=1:9212
$.rails.rails.ajax jquery_ujs.js?body=1:81
$.rails.rails.handleRemote jquery_ujs.js?body=1:157
(anonymous function) jquery_ujs.js?body=1:364
jQuery.event.dispatch jquery.js?body=1:4625
elemData.handle jquery.js?body=1:4293
我用脚手架建造了所有东西，我正在读这可能不是最好的主意，但我不知道更好。
我的所有代码都是开放的，可在此处访问：https://github.com/stevepopo/playmycity 我相信的相关文件是'likes_controller'（下方），models / like.rb，views / likes / _form.html.erb＆amp; _like_button.html.erb＆amp; toggle.js.erb和views / artists / show.html.erb（喜欢/不同于div的地方）。
我真的不知道是否要将所有这些文件复制到这个问题中 - 似乎链接到我的代码应该可以帮到你吗？
我没有在我基于'likes_controller.rb'的示例中使用的一段代码。具体做法是：
@like = Like.create(params[:like])
因为我不知道这是否与我的代码中的内容相同（不知何故）：
@like = Like.new(like_params)
同样在'def destroy'下的类似行。
他的样子：
class LikesController < ApplicationController
# respond_to :js
def create
@like = Like.create(params[:like])
@product = @like.product
render :toggle
end
def destroy
like = Like.find(params[:id]).destroy
@product = like.product
render :toggle
end
end
在我的代码（下面）中，我还质疑'format.html'响应是否在渲染之前搞砸了：切换。但我不知道，因为那段代码已经存在（脚手架？）。
我的是：
class LikesController < ApplicationController
before_action :set_like, only: [:show, :edit, :update, :destroy]
# GET /likes
# GET /likes.json
def index
@likes = Like.all
end
# GET /likes/1
# GET /likes/1.json
def show
end
# GET /likes/new
def new
@like = Like.new
end
# GET /likes/1/edit
def edit
end
# POST /likes
# POST /likes.json
def create
@like = Like.new(like_params)
@artist = @like.artist
respond_to do |format|
if @like.save
format.html { redirect_to @like, notice: 'Like was successfully created.' }
format.json { render :toggle }
else
format.html { render :new }
format.json { render json: @like.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /likes/1
# PATCH/PUT /likes/1.json
def update
respond_to do |format|
if @like.update(like_params)
format.html { redirect_to @like, notice: 'Like was successfully updated.' }
format.json { render :show, status: :ok, location: @like }
else
format.html { render :edit }
format.json { render json: @like.errors, status: :unprocessable_entity }
end
end
end
# DELETE /likes/1
# DELETE /likes/1.json
def destroy
@like.destroy
@artist = like.artist
respond_to do |format|
format.html { redirect_to likes_url, notice: 'Like was successfully destroyed.' }
format.json { render :toggle }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_like
@like = Like.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def like_params
params.require(:like).permit(:user_id, :artist_id, :listen_count, :play_my_city)
end
end
找到所有代码：https://github.com/stevepopo/playmycity
感谢您的帮助！
更新：RAILS CONSOLE结果 这是评论者提出的rails控制台结果：
Started POST "/likes" for 127.0.0.1 at 2014-07-11 14:01:03 -0400
Processing by LikesController#create as JS
Parameters: {"utf8"=>"✓", "like"=>{"artist_id"=>"1", "user_id"=>"1"}, "commit"=>"Like"}
Artist Load (2.9ms) SELECT "artists".* FROM "artists" WHERE "artists"."id" = ? LIMIT 1 [["id", 1]]
(0.5ms) begin transaction
SQL (1.0ms) INSERT INTO "likes" ("artist_id", "created_at", "updated_at", "user_id") VALUES (?, ?, ?, ?) [["artist_id", 1], ["created_at", "2014-07-11 18:01:03.115390"], ["updated_at", "2014-07-11 18:01:03.115390"], ["user_id", 1]]
(7.8ms) commit transaction
Redirected to http://localhost:3000/likes/26
Completed 302 Found in 65ms (ActiveRecord: 12.2ms)
Started GET "/likes/26" for 127.0.0.1 at 2014-07-11 14:01:03 -0400
ActionController::RoutingError (No route matches [GET] "/likes/26"):
actionpack (4.1.1) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
actionpack (4.1.1) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.1.1) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.1.1) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.1.1) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.1.1) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.1.1) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.1.1) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.1.1) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
rack (1.5.2) lib/rack/runtime.rb:17:in `call'
activesupport (4.1.1) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'
rack (1.5.2) lib/rack/lock.rb:17:in `call'
actionpack (4.1.1) lib/action_dispatch/middleware/static.rb:64:in `call'
rack (1.5.2) lib/rack/sendfile.rb:112:in `call'
railties (4.1.1) lib/rails/engine.rb:514:in `call'
railties (4.1.1) lib/rails/application.rb:144:in `call'
rack (1.5.2) lib/rack/lock.rb:17:in `call'
rack (1.5.2) lib/rack/content_length.rb:14:in `call'
rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'
/Users/steve/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
/Users/steve/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
/Users/steve/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'
Rendered /Users/steve/.rvm/gems/ruby-2.1.2@global/gems/actionpack-4.1.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (5.8ms)
Rendered /Users/steve/.rvm/gems/ruby-2.1.2@global/gems/actionpack-4.1.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (25.1ms)
RAKE ROUTES INFO：
Prefix Verb URI Pattern Controller#Action
location_likes GET /location_likes(.:format) location_likes#index
POST /location_likes(.:format) location_likes#create
new_location_like GET /location_likes/new(.:format) location_likes#new
edit_location_like GET /location_likes/:id/edit(.:format) location_likes#edit
location_like GET /location_likes/:id(.:format) location_likes#show
PATCH /location_likes/:id(.:format) location_likes#update
PUT /location_likes/:id(.:format) location_likes#update
DELETE /location_likes/:id(.:format) location_likes#destroy
likes POST /likes(.:format) likes#create
like DELETE /likes/:id(.:format) likes#destroy
locations GET /locations(.:format) locations#index
POST /locations(.:format) locations#create
new_location GET /locations/new(.:format) locations#new
edit_location GET /locations/:id/edit(.:format) locations#edit
location GET /locations/:id(.:format) locations#show
PATCH /locations/:id(.:format) locations#update
PUT /locations/:id(.:format) locations#update
DELETE /locations/:id(.:format) locations#destroy
new_user_session GET /users/sign_in(.:format) devise/sessions#new
user_session POST /users/sign_in(.:format) devise/sessions#create
destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy
user_password POST /users/password(.:format) devise/passwords#create
new_user_password GET /users/password/new(.:format) devise/passwords#new
edit_user_password GET /users/password/edit(.:format) devise/passwords#edit
PATCH /users/password(.:format) devise/passwords#update
PUT /users/password(.:format) devise/passwords#update
cancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
user_registration POST /users(.:format) devise/registrations#create
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
PATCH /users(.:format) devise/registrations#update
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
artists GET /artists(.:format) artists#index
POST /artists(.:format) artists#create
new_artist GET /artists/new(.:format) artists#new
edit_artist GET /artists/:id/edit(.:format) artists#edit
artist GET /artists/:id(.:format) artists#show
PATCH /artists/:id(.:format) artists#update
PUT /artists/:id(.:format) artists#update
DELETE /artists/:id(.:format) artists#destroy
pages_about GET /pages/about(.:format) pages#about
pages_contact GET /pages/contact(.:format) pages#contact
root GET / artists#index