我有一个在 Heroku 上运行的 Rails 3.1 应用程序,我在其中使用带有 jQuery 的 Bootstrap v1.4(我需要使用 Bootstrap 1 - 所以我不能移动到版本 2)数据表。虽然数据表在本地看起来很好,但当我将更改移动到 Heroku 时,它不起作用。
特别是,它没有显示有多少行的文本,也没有在分页后放置换行符/间距。此外,该表对数据进行了正确排序,但分页不起作用(它不显示页码,并且 Next/Previous 链接不执行任何操作)。
在本地,数据表的底部看起来像这样。
然而,在 Heroku 上它看起来像这样。
我在Datatables 博客上实现了代码。
我的布局文件在标题中如下所示:
<head>
<%= stylesheet_link_tag "application" %>
<%= javascript_include_tag "application"%>
<%= yield :javascript%>
<%= yield :script%>
<script type="text/javascript">
jQuery.noConflict();
/* Table initialisation */
jQuery(document).ready(function() {
jQuery('#datatable').dataTable( {
sDom: "<'row'<'span5'l><'span8'f>r>t<'row'<'span4'i><'span8'p>>",
"sPaginationType": "bootstrap",
"oLanguage": {
"sLengthMenu": "_MENU_ records per page"
}
} );
} );
</script>
</head>
<table class="bordered-table zebra-striped" id="datatable" >
<thead>
<tr>
<th>Date</th>
<th>id</th>
<th>User Name</th>
</tr>
</thead>
<tbody>
<tr>
<td><%= user.date.strftime("%m/%d/%Y") %></td>
<td><%= user.id %></td>
<td><%= user.user_name %></td>
</tr>
</tbody>
</table>
应用程序 CSS
/*
*= require_self
*= require bootstrap
*/
div.dataTables_length label {
width: 460px;
float: left;
text-align: left;
}
div.dataTables_length select {
width: 75px;
}
div.dataTables_filter label {
float: right;
width: 460px;
}
div.dataTables_info {
padding-top: 8px;
}
div.dataTables_paginate {
float: right;
margin: 0;
}
table {
margin: 1em 0;
clear: both;
}
table.dataTable th:active {
outline: none;
}
应用程序.js
//= require jquery.min
//= require jquery-ui.min
//= require jquery_ujs
//= require_self
//= require jquery.dataTables.min
//= require dataTables_bootstrap_plugin
dataTables_bootstrap_plugin.js(使用来自Datatables 博客的代码)
/* Default class modification */
jQuery.extend( jQuery.fn.dataTableExt.oStdClasses, {
"sSortAsc": "header headerSortDown",
"sSortDesc": "header headerSortUp",
"sSortable": "header"
} );
/* API method to get paging information */
jQuery.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings )
{
return {
"iStart": oSettings._iDisplayStart,
"iEnd": oSettings.fnDisplayEnd(),
"iLength": oSettings._iDisplayLength,
"iTotal": oSettings.fnRecordsTotal(),
"iFilteredTotal": oSettings.fnRecordsDisplay(),
"iPage": Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),
"iTotalPages": Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )
};
}
/* Bootstrap style pagination control */
jQuery.extend( $.fn.dataTableExt.oPagination, {
"bootstrap": {
"fnInit": function( oSettings, nPaging, fnDraw ) {
var oLang = oSettings.oLanguage.oPaginate;
var fnClickHandler = function ( e ) {
e.preventDefault();
if ( oSettings.oApi._fnPageChange(oSettings, e.data.action) ) {
fnDraw( oSettings );
}
};
jQuery(nPaging).addClass('pagination').append(
'<ul>'+
'<li class="prev disabled"><a href="#">← '+oLang.sPrevious+'</a></li>'+
'<li class="next disabled"><a href="#">'+oLang.sNext+' → </a></li>'+
'</ul>'
);
var els = jQuery('a', nPaging);
jQuery(els[0]).bind( 'click.DT', { action: "previous" }, fnClickHandler );
jQuery(els[1]).bind( 'click.DT', { action: "next" }, fnClickHandler );
},
"fnUpdate": function ( oSettings, fnDraw ) {
var iListLength = 5;
var oPaging = oSettings.oInstance.fnPagingInfo();
var an = oSettings.aanFeatures.p;
var i, j, sClass, iStart, iEnd, iHalf=Math.floor(iListLength/2);
if ( oPaging.iTotalPages < iListLength) {
iStart = 1;
iEnd = oPaging.iTotalPages;
}
else if ( oPaging.iPage <= iHalf ) {
iStart = 1;
iEnd = iListLength;
} else if ( oPaging.iPage >= (oPaging.iTotalPages-iHalf) ) {
iStart = oPaging.iTotalPages - iListLength + 1;
iEnd = oPaging.iTotalPages;
} else {
iStart = oPaging.iPage - iHalf + 1;
iEnd = iStart + iListLength - 1;
}
for ( i=0, iLen=an.length ; i<iLen ; i++ ) {
// Remove the middle elements
jQuery('li:gt(0)', an[i]).filter(':not(:last)').remove();
// Add the new list items and their event handlers
for ( j=iStart ; j<=iEnd ; j++ ) {
sClass = (j==oPaging.iPage+1) ? 'class="active"' : '';
jQuery('<li '+sClass+'><a href="#">'+j+'</a></li>')
.insertBefore( $('li:last', an[i])[0] )
.bind('click', function (e) {
e.preventDefault();
oSettings._iDisplayStart = (parseInt($('a', this).text(),10)-1) * oPaging.iLength;
fnDraw( oSettings );
} );
}
// Add / remove disabled classes from the static elements
if ( oPaging.iPage === 0 ) {
jQuery('li:first', an[i]).addClass('disabled');
} else {
jQuery('li:first', an[i]).removeClass('disabled');
}
if ( oPaging.iPage === oPaging.iTotalPages-1 || oPaging.iTotalPages === 0 ) {
jQuery('li:last', an[i]).addClass('disabled');
} else {
jQuery('li:last', an[i]).removeClass('disabled');
}
}
}
}
} );