我正在尝试构建一些东西,它会从 Ruby 中的列表中随机选择两个对象(使用 Rails),然后对这些对象执行基本操作。我目前的设置涉及在开始时随机选择数字 - 使用这些数字从数据库中获取对象,然后将这些对象渲染到索引。但是,现在我正在尝试使用 AJAX 编辑这些对象,但遇到了问题。
似乎,当我单击一个链接时,随机数正在重新计算并导致我的 AJAX 函数不起作用。
我已经在下面包含(我相信是)所有相关代码,但如果您需要查看其他内容以了解详情,请告诉我。我正在寻找旧动物的标题和(最好是它们以前的评级和)它们的新评级出现在页面底部。
谢谢,
马特
controllers/static_pages.rb
class StaticPagesController < ApplicationController
respond_to :html, :js
before_filter :pickanimals
def pickanimals
@allAnimals = Animal.all
@random_no = rand(@allAnimals.length)
@animal = @allAnimals[@random_no]
@allAnimals.delete_at(@random_no)
@newRandom = rand(@allAnimals.length)
@animal2 = @allAnimals[@newRandom]
end
def index
respond_to do |format|
format.html
format.js
end
end
def help
end
def about
end
def contact
end
def league
end
def voting
@votedAnimal = Animal.find(params[:id])
if @votedAnimal == @animal
@animal.rating += 1
@animal2.rating -= 1
else
@animal.rating -= 1
@animal2.rating += 1
end
Animal.transaction do
@animal.save!
@animal2.save!
end
respond_to do |format|
format.html { redirect_to root_path }
format.js
end
end
end
app/views/static_pages/index.html.erb
<div class="center hero-unit">
<h1>Animal Attack</h1>
<p> Who will win when nature collides? </p>
<div class="animalcontainerright">
<h2> <%= @animal.name %> </h2>
<%= link_to image_tag(@animal.attachment.url(:large)), voting_path(@animal.id), :remote => true, :confirm => "Rating: "+@animal.rating.to_s %>
</div>
<div class="animalcontainerleft">
<h2> <%= @animal2.name %> </h2>
<%= link_to image_tag(@animal2.attachment.url(:large)), voting_path(@animal2.id), :remote => true, :confirm => "Rating: "+@animal2.rating.to_s %>
</div>
<div id="animalfacts"></div>
routes.rb
AnimalAttack::Application.routes.draw do
resources :animals
root to: 'static_pages#index'
match '/help' => 'static_pages#help'
match '/about' => 'static_pages#about'
match '/contact' => 'static_pages#contact'
match '/league' => 'static_pages#league'
match '/voting/:id' => 'static_pages#voting'
end
rake routes
animals GET /animals(.:format) animals#index
POST /animals(.:format) animals#create
new_animal GET /animals/new(.:format) animals#new
edit_animal GET /animals/:id/edit(.:format) animals#edit
animal GET /animals/:id(.:format) animals#show
PUT /animals/:id(.:format) animals#update
DELETE /animals/:id(.:format) animals#destroy
root / static_pages#index
help /help(.:format) static_pages#help
about /about(.:format) static_pages#about
contact /contact(.:format) static_pages#contact
league /league(.:format) static_pages#league
/animals(.:format) animals#new
/voting/:id(.:format) static_pages#voting