javascript - Bootstrap 自定义 JavaScript 文件未加载(Rails 4)

Question

SOLVED: See my answer below

我的最终目标是在我的应用程序中构建一个 Heroku 仪表板样式的可折叠侧边栏(将 heroku 缩小到大约 768 像素，然后它就会出现)。然而，我每次都失败了。我使用的是 Rails 4 和 Bootstrap 3，它们似乎不具备开箱即用的能力。

我的 Rails 应用究竟出了什么问题？我无法在此处加载任何需要 JS 的内容。我试过将我的 JS 包装在 document.ready 中但这也没有用。

我一直在关注这个[诚然很旧，写得不是很好]指南: http://seegatesite.com/create-simple-cool-sidebar-menu-with-bootstrap-3/

我有 gem 'jquery-rails在我的 Gemfile ，并在我的 config/initializers/assets.rb 中包含以下内容:

Rails.application.config.assets.precompile += %w( app.js )
Rails.application.config.assets.precompile += %w( app.css )

我什至尝试将所需的 JS 插入 <script> inside the .html.erb` 文件无效。对我有什么线索或有用的链接吗？

似乎所有 HTML 和 CSS 都运行良好，但切换按钮没有任何功能。

这是我的 app.js :

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require bootstrap-sprockets
//= require_tree .
//= require highcharts/highstock
//= require highcharts/highcharts
//= require highcharts/highcharts-more
//= require highcharts/modules/exporting

/* off-canvas sidebar toggle */

$("#menu-toggle").click(function(e) {
        e.preventDefault();
        $("#wrapper").toggleClass("toggled");
    });
     $("#menu-toggle-2").click(function(e) {
        e.preventDefault();
        $("#wrapper").toggleClass("toggled-2");
        $('#menu ul').hide();
    });

     function initMenu() {
      $('#menu ul').hide();
      $('#menu ul').children('.current').parent().show();
      //$('#menu ul:first').show();
      $('#menu li a').click(
        function() {
          var checkElement = $(this).next();
          if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
            return false;
            }
          if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
            $('#menu ul:visible').slideUp('normal');
            checkElement.slideDown('normal');
            return false;
            }
          }
        );
      }
    $(document).ready(function() {initMenu();});

我的 app.css.scss :

/*!
 * Start Bootstrap - Simple Sidebar HTML Template (http://startbootstrap.com)
 * Code licensed under the Apache License v2.0.
 * For details, see http://www.apache.org/licenses/LICENSE-2.0.
 */

/* Toggle Styles */
/* This sidebar modified by seegatesite.com */

/*
 *
 *= require_tree .
 *= require_self
 */
@import "bootstrap-sprockets";
@import "bootstrap";


#wrapper {
    padding-left: 0;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

#wrapper.toggled {
    padding-left: 250px;
}

#sidebar-wrapper {
    z-index: 1000;
    position: fixed;
    left: 250px;
    width: 0; /* disini agar ketika di kecilkan tidak hilang semua default 0*/
    height: 100%;
    margin-left: -250px;
    overflow-y: auto;
    background: #000;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}
#wrapper.toggled #sidebar-wrapper {
    width: 250px;
}

#page-content-wrapper {
    width: 100%;
    position: absolute;
    padding: 15px;
}

#wrapper.toggled #page-content-wrapper {
    position: absolute;
    margin-right: -250px;
}
.fixed-brand{
    width: auto;
}
/* Sidebar Styles */

.sidebar-nav {
    position: absolute;
    top: 0;
    width: 250px;
    margin: 0;
    padding: 0;
    list-style: none;
    margin-top: 2px;
}

.sidebar-nav li {
    text-indent: 15px;
    line-height: 40px;
}

.sidebar-nav li a {
    display: block;
    text-decoration: none;
    color: #999999;
}

.sidebar-nav li a:hover {
    text-decoration: none;
    color: #fff;
    background: rgba(255,255,255,0.2);
    border-left: red 2px solid;
}

.sidebar-nav li a:active,
.sidebar-nav li a:focus {
    text-decoration: none;
}

.sidebar-nav > .sidebar-brand {
    height: 65px;
    font-size: 18px;
    line-height: 60px;
}

.sidebar-nav > .sidebar-brand a {
    color: #999999;
}

.sidebar-nav > .sidebar-brand a:hover {
    color: #fff;
    background: none;
}
.no-margin{
    margin:0;
}

@media(min-width:768px) {
    #wrapper {
        padding-left: 250px;
    }
    .fixed-brand{
    width: 250px;
}
    #wrapper.toggled {
        padding-left: 0;
    }

    #sidebar-wrapper {
        width: 250px;
    }

    #wrapper.toggled #sidebar-wrapper {
        width: 250px;
    }
    #wrapper.toggled-2 #sidebar-wrapper {
        width: 50px;
    }
    #wrapper.toggled-2 #sidebar-wrapper:hover {
        width: 250px;
    }

    #page-content-wrapper {
        padding: 20px;
        position: relative;
         -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
    }

    #wrapper.toggled #page-content-wrapper {
        position: relative;
        margin-right: 0;
        padding-left: 250px;

    }
        #wrapper.toggled-2 #page-content-wrapper {
        position: relative;
        margin-right: 0;
        margin-left: -200px;
         -webkit-transition: all 0.5s ease;
        -moz-transition: all 0.5s ease;
        -o-transition: all 0.5s ease;
        transition: all 0.5s ease;
    }
}

最后是我的 app.html.erb

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">
    <%= stylesheet_link_tag 'app', media: 'all' %>
    <%= javascript_include_tag 'app' %>
</head>
<body>
    <nav class="navbar navbar-default no-margin">
    <!-- Brand and toggle get grouped for better mobile display -->
                <div class="navbar-header fixed-brand">
                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"  id="menu-toggle">
                      <span class="glyphicon glyphicon-th-large" aria-hidden="true"></span>
                    </button>
                    <a class="navbar-brand" href="#"><i class="fa fa-rocket fa-4"></i> SEEGATESITE</a>
                </div><!-- navbar-header-->

                <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                            <ul class="nav navbar-nav">
                                <li class="active" ><button class="navbar-toggle collapse in" data-toggle="collapse" id="menu-toggle-2"> <span class="glyphicon glyphicon-th-large" aria-hidden="true"></span></button></li>
                            </ul>
                </div><!-- bs-example-navbar-collapse-1 -->
    </nav>
    <div id="wrapper">
        <!-- Sidebar -->
        <div id="sidebar-wrapper">
            <ul class="sidebar-nav nav-pills nav-stacked" id="menu">

                <li class="active">
                    <a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-dashboard fa-stack-1x "></i></span> Dashboard</a>
                       <ul class="nav-pills nav-stacked" style="list-style-type:none;">
                        <li><a href="#">link1</a></li>
                        <li><a href="#">link2</a></li>
                    </ul>
                </li>
                <li>
                    <a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-flag fa-stack-1x "></i></span> Shortcut</a>
                    <ul class="nav-pills nav-stacked" style="list-style-type:none;">
                        <li><a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-flag fa-stack-1x "></i></span>link1</a></li>
                        <li><a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-flag fa-stack-1x "></i></span>link2</a></li>

                    </ul>
                </li>
                <li>
                    <a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-cloud-download fa-stack-1x "></i></span>Overview</a>
                </li>
                <li>
                    <a href="#"> <span class="fa-stack fa-lg pull-left"><i class="fa fa-cart-plus fa-stack-1x "></i></span>Events</a>
                </li>
                <li>
                    <a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-youtube-play fa-stack-1x "></i></span>About</a>
                </li>
                <li>
                    <a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-wrench fa-stack-1x "></i></span>Services</a>
                </li>
                <li>
                    <a href="#"><span class="fa-stack fa-lg pull-left"><i class="fa fa-server fa-stack-1x "></i></span>Contact</a>
                </li>
            </ul>
        </div><!-- /#sidebar-wrapper -->
        <!-- Page Content -->
        <div id="page-content-wrapper">
            <div class="container-fluid">
                <div class="row">
                    <div class="col-lg-12">
                        <h1>Simple Sidebar With Bootstrap 3 by Seegatesite.com</h1>
                        <p>This sidebar is adopted from <a href="http://startbootstrap.com/">start bootstrap simple sidebar</a>, which I modified slightly to be more cool. For tutorials and how to create it , you can read from my site </p>
                    </div>
                </div>
            </div>
        </div>
        <!-- /#page-content-wrapper -->
    </div>
    <!-- /#wrapper -->
</body>
</html>

Answer 1

已通过将 JavaScript 文件引用移动到页面底部来修复。将更改问题标题，以便人们更容易找到这可能有所帮助。

<%= stylesheet_link_tag 'app', media: 'all' %>
<%= javascript_include_tag 'app' %>