Mik*_*ike 6 javascript php jquery datatables-1.10
我有使用DataTables服务器端处理的表格在我的网站上显示.我希望能够"全部导出"并导出所有行,而不仅仅是要显示的行.有60000多行和65+列,因此必须使用服务器端处理.
我尝试过一些东西,但到目前为止还没有任何效果.
我试过这个:
{ extend: 'excel',
text: 'Export Current Page',
exportOptions: {
modifier: {
page: 'current'
}
},
customize: function (xlsx)
{
var sheet = xlsx.xl.worksheets['sheet1.xml'];
$('row:first c', sheet).attr('s', '7');
}
}
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其中只导出了页面上显示的行.
我试过这个:
{
text: 'Export All to Excel',
action: function (e, dt, button, config)
{
dt.one('preXhr', function (e, s, data)
{
data.length = -1;
}).one('draw', function (e, settings, json, xhr)
{
var excelButtonConfig = $.fn.DataTable.ext.buttons.excelHtml5;
var addOptions = { exportOptions: { 'columns': ':all'} };
$.extend(true, excelButtonConfig, addOptions);
excelButtonConfig.action(e, dt, button, excelButtonConfig);
}).draw();
}
}
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这会将整个表的数据发送到屏幕,而不是使用分页并将整个数据集发送到excel文件.
我在Google上搜索过这里,但是没有找到可行的解决方案.
我还要提一下,我想根据表中设置的当前过滤器导出全部.这样最终用户只能获得他们正在搜索的行的导出.它们通常将其限制为30k-40k行,仍然使用65+列.我(还)不允许删除/隐藏列.
编辑/ UPDATE
这是次要考虑因素:如果我无法从服务器的响应中导出全部,我可以在服务器上构建Excel文件吗?我的服务器没有安装Excel,我仍然希望我的最终用户获取该文件.我确信我必须找到一种方法将Excel放到我的服务器上,但是如何将任何创建的文件传输给最终用户,这甚至比仅发送一个包含整个数据集的响应更快用户计算机上的Excel文件?
编辑
我建议尝试使用jquery $.ajax()来实现这个功能.如果有人可以告诉我如何做到这一点,我会尝试第三个按钮.
我已经可以使用用户添加的相同过滤器和排序来提取所有数据,并使用按钮执行此操作.上面的第二次尝试确实如此,但将其发送到屏幕.我有PHPExcel和一个可以创建Excel工作表的文件.我如何获取第二个按钮并将其发送到另一个文件以创建Excel工作表?我认为使用jquery $.ajax()可能会起作用,我只是不知道如何使用它.我知道我必须使用,$_POST因为数据可能太大而无法用于$_GET将数据发送到PHPExcel文件.
我已经可以导出为CSV,但我需要使用CSV没有的格式导出.这就是为什么我要使用PHPExcel的麻烦.
编辑III
我正在尝试这个,虽然它还没有工作:
{
text: 'Export all to Excel II',
action: function (e, dt, button, config)
{
dt.one('preXhr', function (e, s, data)
{
data.length = -1;
}).one('export', function (e, settings, json, xhr)
{
var excelButtonConfig = $.fn.DataTable.ext.buttons.excelHtml5;
var addOptions = { exportOptions: { 'columns': ':all'} };
$.extend(true, excelButtonConfig, addOptions);
excelButtonConfig.action(e, dt, button, excelButtonConfig);
})
}
}
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编辑4
希望最后编辑.
我知道我必须做三件事来完成这项工作:
发送到PHPExcel文件以处理和创建Excel文件我可以创建一个这样的按钮:
{text:'将所有数据导出到Excel',操作:}
我只是不知道需要采取什么行动.
我上面的第二次尝试拉出了我需要的整个数据集,但将其发送到屏幕而不是我的PHPExcel文件(ExportAllToExcel.php).
我一直试图解决这个问题,并没有走得太远.我被告知我需要使用$.ajax()这个,我被告知我不需要使用它.我曾经尝试过,有过没有,无法到达任何地方.
我也尝试使用它没有效果:
$.fn.dataTable.ext.buttons.export =
{
className: 'buttons-alert',
"text": "Export All Test",
action: function (e, dt, node, config)
{
var SearchData = dt.search();
var OrderData = dt.order();
alert("Test Data for Searching: " + SearchData);
alert("Test Data for Ordering: " + OrderData);
}
};
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"dom": 'Blfrtip',
"buttons": [
{
"extend": 'excel',
"text": '<button class="btn"><i class="fa fa-file-excel-o" style="color: green;"></i> Excel</button>',
"titleAttr": 'Excel',
"action": newexportaction
},
],
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function newexportaction(e, dt, button, config) {
var self = this;
var oldStart = dt.settings()[0]._iDisplayStart;
dt.one('preXhr', function (e, s, data) {
// Just this once, load all data from the server...
data.start = 0;
data.length = 2147483647;
dt.one('preDraw', function (e, settings) {
// Call the original action function
if (button[0].className.indexOf('buttons-copy') >= 0) {
$.fn.dataTable.ext.buttons.copyHtml5.action.call(self, e, dt, button, config);
} else if (button[0].className.indexOf('buttons-excel') >= 0) {
$.fn.dataTable.ext.buttons.excelHtml5.available(dt, config) ?
$.fn.dataTable.ext.buttons.excelHtml5.action.call(self, e, dt, button, config) :
$.fn.dataTable.ext.buttons.excelFlash.action.call(self, e, dt, button, config);
} else if (button[0].className.indexOf('buttons-csv') >= 0) {
$.fn.dataTable.ext.buttons.csvHtml5.available(dt, config) ?
$.fn.dataTable.ext.buttons.csvHtml5.action.call(self, e, dt, button, config) :
$.fn.dataTable.ext.buttons.csvFlash.action.call(self, e, dt, button, config);
} else if (button[0].className.indexOf('buttons-pdf') >= 0) {
$.fn.dataTable.ext.buttons.pdfHtml5.available(dt, config) ?
$.fn.dataTable.ext.buttons.pdfHtml5.action.call(self, e, dt, button, config) :
$.fn.dataTable.ext.buttons.pdfFlash.action.call(self, e, dt, button, config);
} else if (button[0].className.indexOf('buttons-print') >= 0) {
$.fn.dataTable.ext.buttons.print.action(e, dt, button, config);
}
dt.one('preXhr', function (e, s, data) {
// DataTables thinks the first item displayed is index 0, but we're not drawing that.
// Set the property to what it was before exporting.
settings._iDisplayStart = oldStart;
data.start = oldStart;
});
// Reload the grid with the original page. Otherwise, API functions like table.cell(this) don't work properly.
setTimeout(dt.ajax.reload, 0);
// Prevent rendering of the full data to the DOM
return false;
});
});
// Requery the server with the new one-time export settings
dt.ajax.reload();
}
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我主要有这个工作。现在已经超时,但由于数据大小而不是此工作,这是一个单独的问题。对于小型数据集,它的效果非常好。
这就是我创建按钮的方式(这是我在这里使用的导出按钮):
"buttons": [{
extend: 'collection',
text: 'Selection',
buttons: ['selectAll', 'selectNone']
}, {
extend: 'collection',
text: 'Export',
buttons: ['export', 'excel', 'csv', 'pdf', { extend: 'excel',
text: 'Export Current Page',
exportOptions: {
modifier: {
page: 'current'
}
},
customize: function (xlsx)
{
var sheet = xlsx.xl.worksheets['sheet1.xml'];
$('row:first c', sheet).attr('s', '7');
}
}]
}
]
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这是上面创建的按钮的初始化:
$.fn.dataTable.ext.buttons.export =
{
className: 'buttons-alert',
id: 'ExportButton',
text: "Export All Test III",
action: function (e, dt, node, config)
{
var SearchData = dt.rows({ filter: 'applied' }).data();
var SearchData1 = dt.search();
console.log(SearchData);
var OrderData = dt.order();
console.log(SearchData1);
var NumCol = SearchData[0].length;
var NumRow = SearchData.length;
var SearchData2 = [];
for (j = 0; j < NumRow; j++)
{
var NewSearchData = SearchData[j];
for (i = 0; i < NewSearchData.length; i++)
{
NewSearchData[i] = NewSearchData[i].replace("<div class='Scrollable'>", "");
NewSearchData[i] = NewSearchData[i].replace("</div>", "");
}
SearchData2.push([NewSearchData]);
}
for (i = 0; i < SearchData2.length; i++)
{
for (j = 0; j < SearchData2[i].length; j++)
{
SearchData2[i][j] = SearchData2[i][j].join('::');
}
}
SearchData2 = SearchData2.join("%%");
window.location.href = './ServerSide.php?ExportToExcel=Yes';
}
};
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这是ServerSide.php文件中获取数据并将其发送到服务器进行处理的部分:
require('FilterSort.class.php');
if (isset($_GET['ExportToExcel']) && $_GET['ExportToExcel'] == 'Yes')
{
$request = @unserialize($_COOKIE['KeepPost']);
$DataReturn = json_encode(FilterSort::complex($request,$sqlConnect,$table,$primaryKey,$ColumnHeader));
require './ExportAllToExcel.php';
}
else
{
echo json_encode(FilterSort::complex($request,$sqlConnect,$table,$primaryKey,$ColumnHeader));
}
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这是我设置用于保存搜索和排序条件的 cookie 的方法:
if(isset($_POST['draw']))
{
$KeepPost = $_POST;
$KeepPost['length'] = -1;
$PostKept = serialize($KeepPost);
setcookie("KeepPost",$PostKept,time() + (60*60*24*7));
}
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所有这些组合将正确的条件发送到FilterSort.class.php,后者应处理条件并将数据集返回到ExportAllToExcell.php,然后创建 Excel 文件。现在我正在向它发送大量报告,但它超时了。
更新
我稍微改变了我这样做的方式:
这是一组新按钮:
"buttons": [{
extend: 'collection',
text: 'Export',
buttons: ['export', { extend: 'csv',
text: 'Export All To CSV', //Export all to CSV file
action: function (e, dt, node, config)
{
window.location.href = './ServerSide.php?ExportToCSV=Yes';
}
}, 'csv', 'pdf', { extend: 'excel',
text: 'Export Current Page', //Export to Excel only the current page and highlight the first row as headers
exportOptions: {
modifier: {
page: 'current'
}
},
customize: function (xlsx)
{
var sheet = xlsx.xl.worksheets['sheet1.xml'];
$('row:first c', sheet).attr('s', '7');
}
}]
}
]
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以下是创建“全部导出到 Excel”按钮的方法:
$.fn.dataTable.ext.buttons.export =
{
className: 'buttons-alert', //Adds the "Export all to Excel" button
id: 'ExportButton',
text: "Export All To Excel",
action: function (e, dt, node, config)
{
window.location.href = './ServerSide.php?ExportToExcel=Yes';
}
};
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这些现在将数据发送到我之前使用的相同ServerSide.php文件:
require('FilterSort.class.php');
if (isset($_GET['ExportToExcel']) && $_GET['ExportToExcel'] == 'Yes')
{
include 'Helper/LogReport.php';
$GetSQL = "Select Value from PostKept where UserName = '" .$_COOKIE['UserName']. "'";
$KeepResult = $conn->query($GetSQL);
$KeepResults = $KeepResult->fetchALL(PDO::FETCH_ASSOC);
$request = unserialize($KeepResults[0]['Value']);
$DataReturn = json_encode(FilterSort::complex($request,$sqlConnect,$table,$primaryKey,$ColumnHeader,1));
require './ExportAllToExcel.php';
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我还更改了保留查询的方式,现在还保留表名和用户名,如下所示:
include 'DBConn.php';
$KeepPost = $_POST; //POST holds all the data for the search
$KeepPost['length'] = -1; //-1 means pulling the whole table
$PostKept = serialize($KeepPost); //This takes the array of data and turns it into a string for storage in SQL
$SQLCheck = "select distinct UserName from PostKept"; //Gets all the distinct Usernames of users that have used the Report Dashboard.
$sth = $conn->query($SQLCheck);
$CheckedUser = $sth->fetchALL(PDO::FETCH_ASSOC);
foreach($CheckedUser as $User)
{
foreach($User as $Index => $Who)
{
$FoundUsers[] = $Who; //Taking all the found users and placing them into a simpler array for searching later
}
}
if(isset($_COOKIE['UserName']) && in_array($_COOKIE['UserName'],$FoundUsers)) //If the user already has an entry update it with new information
{
$TSQL = "UPDATE PostKept set Value = '" .$PostKept. "', TableName = '" .$TableName. "' where UserName = '" .$_COOKIE['UserName']. "'";
}
else
{
if(isset($_COOKIE['UserName'])) //If this is a new user
{
$TSQL = "INSERT into PostKept(Value, TableName, UserName) select '" .$PostKept. "','" .$TableName. "','" .$_COOKIE['UserName']. "'";
}
else //If this is on the Prod site and the User info is not yet kept
{
$TSQL = "INSERT into PostKept(Value, TableName) select '" .$PostKept. "','" .$TableName. "'";
}
}
$sth = $conn->prepare($TSQL);
$sth->execute();
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现在,这就是将数据发送到我拥有的ExportAllToExcel.php文件的全部组合,然后它依次创建该文件。
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