我遇到了jQuery DataTables的问题。我在服务器端使用jQuery DataTables，问题是我可以搜索或分页表，但它们不能一起工作。
例如，我搜索了一些东西，我想移动下一页。当我移动下一页时，我的搜索字词就会消失。
请参阅thise page进行演示。
我的代码如下：
var Datatable = function () {
var tableOptions; // main options
var dataTable; // datatable object
var table; // actual table jquery object
var tableContainer; // actual table container object
var tableWrapper; // actual table wrapper jquery object
var tableInitialized = false;
var ajaxParams = []; // set filter mode
var countSelectedRecords = function() {
var selected = $('tbody > tr > td:nth-child(1) input[type="checkbox"]:checked', table).size();
var text = tableOptions.dataTable.oLanguage.sGroupActions;
if (selected > 0) {
$('.table-group-actions > span', tableWrapper).text(text.replace("_TOTAL_", selected));
} else {
$('.table-group-actions > span', tableWrapper).text("");
}
}
return {
//main function to initiate the module
init: function (options) {
if (!$().dataTable) {
return;
}
var the = this;
// default settings
options = $.extend(true, {
src: "", // actual table
filterApplyAction: "filter",
filterCancelAction: "filter_cancel",
resetGroupActionInputOnSuccess: true,
dataTable: {
"sDom" : "<'row'<'col-md-8 col-sm-12'pli><'col-md-4 col-sm-12'<'table-group-actions pull-right'>>r><'table-scrollable't><'row'<'col-md-8 col-sm-12'pli><'col-md-4 col-sm-12'>r>>", // datatable layout
"aLengthMenu": [ // set available records per page
[10, 25, 50, 100],
[10, 25, 50, 100]
],
"iDisplayLength": 10, // default records per page
"oLanguage": { // language settings
"sProcessing": '<img src="assets/img/loading-spinner-grey.gif"/><span> Bekleyiniz...</span>',
"sLengthMenu": "<span class='seperator' style='float:left;'>|</span> _MENU_ <span class='seperator' style='float:right;'>Kayıt listele</span>",
"sInfo": "<span class='seperator'>|</span>Toplam _TOTAL_ Kayıt Bulundu",
"sInfoEmpty": "Gösterilecek Kayıt Bulunamadı",
"sGroupActions": "_TOTAL_ records selected: ",
"sAjaxRequestGeneralError": "İstek tamamlanamadı. Lütfen internet bağlantınızı kontrol ediniz.",
"sEmptyTable": "Tabloda kayıt bulunmuyor.",
"sZeroRecords": "Eşleşen kayıt bulunamadı.",
"oPaginate": {
"sPrevious": "Geri",
"sNext": "İleri",
"sPage": "Sayfa",
"sPageOf": "of"
}
},
"aoColumnDefs" : [{ // define columns sorting options(by default all columns are sortable extept the first checkbox column)
'bSortable' : true,
'aTargets' : [ 0 ]
}],
"bAutoWidth": false, // disable fixed width and enable fluid table
"bSortCellsTop": true, // make sortable only the first row in thead
"sPaginationType": "bootstrap_extended", // pagination type(bootstrap, bootstrap_full_number or bootstrap_extended)
"bProcessing": true, // enable/disable display message box on record load
"bServerSide": true, // enable/disable server side ajax loading
"sAjaxSource": "", // define ajax source URL
"sServerMethod": "POST",
// handle ajax request
"fnServerData": function ( sSource, aoData, fnCallback, oSettings ) {
oSettings.jqXHR = $.ajax( {
"dataType": 'json',
"type": "POST",
"url": sSource,
"data": aoData,oSettings,
"success": function(res, textStatus, jqXHR) {
if (res.sMessage) {
App.alert({type: (res.sStatus == 'OK' ? 'success' : 'danger'), icon: (res.sStatus == 'OK' ? 'check' : 'warning'), message: res.sMessage, container: tableWrapper, place: 'prepend'});
}
if (res.sStatus) {
if (tableOptions.resetGroupActionInputOnSuccess) {
$('.table-group-action-input', tableWrapper).val("");
}
}
if ($('.group-checkable', table).size() === 1) {
$('.group-checkable', table).attr("checked", false);
$.uniform.update($('.group-checkable', table));
}
if (tableOptions.onSuccess) {
tableOptions.onSuccess.call(the);
}
fnCallback(res, textStatus, jqXHR);
},
"error": function() {
if (tableOptions.onError) {
tableOptions.onError.call(the);
}
App.alert({type: 'danger', icon: 'warning', message: tableOptions.dataTable.oLanguage.sAjaxRequestGeneralError, container: tableWrapper, place: 'prepend'});
$('.dataTables_processing', tableWrapper).remove();
}
} );
},
// pass additional parameter
"fnServerParams": function ( aoData ) {
//here can be added an external ajax request parameters.
for(var i in ajaxParams) {
var param = ajaxParams[i];
aoData.push({"name" : param.name, "value": param.value});
}
},
"fnDrawCallback": function( oSettings ) { // run some code on table redraw
if (tableInitialized === false) { // check if table has been initialized
tableInitialized = true; // set table initialized
table.show(); // display table
}
App.initUniform($('input[type="checkbox"]', table)); // reinitialize uniform checkboxes on each table reload
countSelectedRecords(); // reset selected records indicator
}
}
}, options);
tableOptions = options;
// create table's jquery object
table = $(options.src);
tableContainer = table.parents(".table-container");
// apply the special class that used to restyle the default datatable
$.fn.dataTableExt.oStdClasses.sWrapper = $.fn.dataTableExt.oStdClasses.sWrapper + " dataTables_extended_wrapper";
// initialize a datatable
dataTable = table.dataTable(options.dataTable);
tableWrapper = table.parents('.dataTables_wrapper');
// modify table per page dropdown input by appliying some classes
$('.dataTables_length select', tableWrapper).addClass("floatleft form-control input-xsmall input-sm");
// build table group actions panel
if ($('.table-actions-wrapper', tableContainer).size() === 1) {
$('.table-group-actions', tableWrapper).html($('.table-actions-wrapper', tableContainer).html()); // place the panel inside the wrapper
$('.table-actions-wrapper', tableContainer).remove(); // remove the template container
}
// handle group checkboxes check/uncheck
$('.group-checkable', table).change(function () {
var set = $('tbody > tr > td:nth-child(1) input[type="checkbox"]', table);
var checked = $(this).is(":checked");
$(set).each(function () {
$(this).attr("checked", checked);
});
$.uniform.update(set);
countSelectedRecords();
});
// handle row's checkbox click
table.on('change', 'tbody > tr > td:nth-child(1) input[type="checkbox"]', function(){
countSelectedRecords();
});
// handle filter submit button click
table.on('click', '.filter-submit', function(e){
e.preventDefault();
the.addAjaxParam("sAction", tableOptions.filterApplyAction);
// get all typeable inputs
$('textarea.form-filter, select.form-filter, input.form-filter:not([type="radio"],[type="checkbox"])', table).each(function(){
the.addAjaxParam($(this).attr("name"), $(this).val());
});
// get all checkable inputs
$('input.form-filter[type="checkbox"]:checked, input.form-filter[type="radio"]:checked', table).each(function(){
the.addAjaxParam($(this).attr("name"), $(this).val());
});
dataTable.fnDraw();
the.clearAjaxParams();
});
// handle filter cancel button click
table.on('click', '.filter-cancel', function(e){
e.preventDefault();
$('textarea.form-filter, select.form-filter, input.form-filter', table).each(function(){
$(this).val("");
});
$('input.form-filter[type="checkbox"]', table).each(function(){
$(this).attr("checked", false);
});
the.addAjaxParam("sAction", tableOptions.filterCancelAction);
dataTable.fnDraw();
the.clearAjaxParams();
});
},
getSelectedRowsCount: function() {
return $('tbody > tr > td:nth-child(1) input[type="checkbox"]:checked', table).size();
},
getSelectedRows: function() {
var rows = [];
$('tbody > tr > td:nth-child(1) input[type="checkbox"]:checked', table).each(function(){
rows.push({name: $(this).attr("name"), value: $(this).val()});
});
return rows;
},
addAjaxParam: function(name, value) {
ajaxParams.push({"name": name, "value": value});
},
clearAjaxParams: function(name, value) {
ajaxParams = [];
},
getDataTable: function() {
return dataTable;
},
getTableWrapper: function() {
return tableWrapper;
},
gettableContainer: function() {
return tableContainer;
},
getTable: function() {
return table;
}
};
};
并且
var EcommerceProducts = function () {
var initPickers = function () {
//init date pickers
$('.date-picker').datepicker({
rtl: App.isRTL(),
autoclose: true
});
}
var handleProducts = function() {
var grid = new Datatable();
grid.init({
src: $("#datatable_products"),
onSuccess: function(grid) {
// execute some code after table records loaded
},
onError: function(grid) {
// execute some code on network or other general error
},
dataTable: { // here you can define a typical datatable settings from http://datatables.net/usage/options
"aLengthMenu": [
[20, 50, 100, 150],
[20, 50, 100, 150] // change per page values here
],
"iDisplayLength": 20, // default record count per page
"bServerSide": true, // server side processing
"processing": true,
"sAjaxSource": "urun_Listesi.asp", // ajax source
"aaSorting": [[ 1, "asc" ]] // set first column as a default sort by asc
}
});
// handle filter submit button click
grid.getTableWrapper().on('click', '.table-group-action-submit', function(e){
e.preventDefault();
var action = $(".table-group-action-input", grid.getTableWrapper());
if (action.val() != "" && grid.getSelectedRowsCount() > 0) {
grid.addAjaxParam("sAction", "group_action");
grid.addAjaxParam("sGroupActionName", action.val());
var records = grid.getSelectedRows();
for (var i in records) {
grid.addAjaxParam(records[i]["name"], records[i]["value"]);
}
grid.getDataTable().fnDraw();
grid.clearAjaxParams();
} else if (action.val() == "") {
App.alert({type: 'danger', icon: 'warning', message: 'Please select an action', container: grid.getTableWrapper(), place: 'prepend'});
} else if (grid.getSelectedRowsCount() === 0) {
App.alert({type: 'danger', icon: 'warning', message: 'No record selected', container: grid.getTableWrapper(), place: 'prepend'});
}
});
}
return {
//main function to initiate the module
init: function () {
handleProducts();
initPickers();
}
};
}();
答案 0 :(得分：0)
<强>原因
当有人点击＆＃34;搜索＆＃34;按钮代码执行以下操作：
addAjaxParam() fnDraw() clearAjaxParams() 由于参数在请求后被清除，因此在发生分页时，对数据的请求将返回所有记录，而不仅仅是已过滤的记录。
<强>解
尝试将clearAjaxParams()放在使用它的每个函数的开头，以便为分页事件保留参数，并仅在有人再次搜索时清除。