Rails中的JQuery在从另一个页面链接后失败，适用于页面加载

Question

我在我的主页上有一个引用旋转器。当我直接从浏览器加载页面（在浏览器中键入地址并按Enter键）它工作正常..但是，如果我点击我的网站中的另一个页面的链接，然后链接回到它停止工作。更具体地说，引号开始重叠，几乎就像该方法的两个实例正在运行一样。

我认为这可能是javascript如何加载的问题。由于我在网站的另一个页面上有一个标签脚本，它会加载正常，但如果我链接并返回页面它不再有效...

在控制台中没有收到任何错误。

我在Ubuntu 12上运行Rails 4，Ruby 2.0.0，Foundation，并使用WebBrick进行测试。 Gemfile发布如下：

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.0'

# Use mysql as the database for Active Record
gem 'mysql2'

# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0'


# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'

# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'

# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
#gem 'nokogiri' '~> 1.5.10'
# Use jquery as the JavaScript library
gem 'jquery-rails'

gem 'activerecord-session_store', github: 'rails/activerecord-session_store'

gem 'activemerchant'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'

gem 'ransack'

gem 'xml-simple'

# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 1.2'

gem 'zurb-foundation'

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false
end

# Use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
 gem 'capistrano', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

脚本：

    function rotateQuotes() {
            var oCurQuote = $('#quotes div.current');
            var oNxtQuote = oCurQuote.next();
            if (oNxtQuote.length == 0)
                oNxtQuote = $('#quotes div:first');

            oCurQuote.removeClass('current').addClass('previous');
            oNxtQuote.css({ opacity: 0.0 }).addClass('current').animate({ opacity: 1.0 }, {duration: 4500},
                function() {
                    oCurQuote.removeClass('previous');});
                    oCurQuote.animate({opacity: 0.0}, {duration: 500});

    }; 

$(function(){

                setInterval(rotateQuotes, 5000);
            });

的application.js

// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// compiled file.
//
// Read Sprockets README (https://github.com/sstephenson/sprockets#sprockets-directives) for details
// about supported directives.
//
//
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require_tree .

Answer 1

我猜这与Turbolinks有关。来自fine manual：

活动

使用Turbolinks页面将在没有完全重新加载的情况下更改，因此您不能依赖DOMContentLoaded或jQuery.ready()来触发您的代码。相反，Turbolinks会在document上触发事件，以便为页面的生命周期提供钩子。

AFAIK，Rails4默认启用turbolinks（你在application.js中有它）所以$(function() { ... })在更改页面时不会总是触发。您可以尝试绑定到turbolinks:load：

$(document).on('turbolinks:load', function() {
    setInterval(rotateQuotes, 5000);
});

你可能想绑定到turbolinks:before-visit来清理它们。

或者，您可以禁用Turbolinks，如果您不关心它。