我添加了“列可见性”按钮，以选择显示或隐藏某些列。我将状态保存在数据库中，通过单击按钮调用stateSaveCallback函数。
我找不到关于以这种方式检索数据的文档，所以我只是链接到页面并传递变量以从数据库中获取数据，然后使用stateLoadCallback加载它。
现在所有这一切都正常，除了列可见性没有恢复。它是在返回的JSON数据中。
这是我的完整代码：
$(document).ready(function() {
$.extend( jQuery.fn.dataTableExt.oSort, {
"date-uk-pre": function (a){
return parseInt(moment(a, "DD/MM/YYYY").format("X"), 10);
},
"date-uk-asc": function (a, b) {
return a - b;
},
"date-uk-desc": function (a, b) {
return b - a;
}
});
var edit_date_col_num = $('th:contains("Edit Date")').index();
var entry_date_col_num = $('th:contains("Entry Date")').index();
var table = $('.mainTable').DataTable( {
pageLength: 50,
colReorder: true,
stateSave: true,
columnDefs: [
{ "type": "date-uk", targets: [ edit_date_col_num, entry_date_col_num ] }
],
dom: 'Blfrtip',
buttons: [
'copy', 'csv', 'excel', 'print',
{
extend: 'colvis',
collectionLayout: 'fixed four-column',
postfixButtons: [ 'colvisRestore' ]
}
],
<?php
$id = $this->input->get('id');
$action = $this->input->get('action');
if(isset($action) && $action == 'load' && isset($id) && $id != '') :
?>
"stateLoadCallback": function (settings) {
var o;
// Send an Ajax request to the server to get the data. Note that
// this is a synchronous request since the data is expected back from the
// function
$.ajax( {
"url": EE.BASE + "&C=addons_modules&M=show_module_cp&module=ion&method=state_save&action=load&id=<?php echo $id;?>",
"async": false,
"dataType": "json",
"success": function (response) {
response = JSON.parse(response);
o = response;
}
});
return o;
},
<?php
endif;
?>
initComplete: function (settings) {
this.api().columns().every( function () {
var column = this;
var select = $('<select><option value=""></option></select>')
.appendTo( $(column.footer()).empty() )
.on( 'change', function () {
var val = $.fn.dataTable.util.escapeRegex(
$(this).val()
);
column
.search( val ? '^'+val+'$' : '', true, false )
.draw();
} );
column.data().unique().sort().each( function ( d, j ) {
select.append( '<option value="'+d+'">'+d+'</option>' )
} );
} );
// Need to re-apply the selection to the select dropdowns
var cols = settings.aoPreSearchCols;
for (var i = 0; i < cols.length; i++)
{
var value = cols[i].sSearch;
if (value.length > 0)
{
value = value.replace("^", "").replace("$","");
console.log(value);
$("tfoot select").eq(i).val(value);
}
}
},
} );
// Save a datatables state by clicking the save button
$( ".save_state" ).click(function(e) {
e.preventDefault();
table.destroy();
$('.mainTable').DataTable( {
colReorder: true,
stateSave: true,
"stateSaveCallback": function (settings, data) {
var save_name = $('.save_name').val();
// Send an Ajax request to the server with the state object
$.ajax( {
"url": EE.BASE + "&C=addons_modules&M=show_module_cp&module=ion&method=state_save&action=save&save_name="+save_name,
"data": data,
"dataType": "json",
"type": "POST",
"success": function (response)
{
//console.log(response);
}
} );
},
});
//table.state.save();
window.location.replace(EE.BASE + "&C=addons_modules&M=show_module_cp&module=ion&method=applications");
});
$( ".clear_state" ).click(function(e) {
e.preventDefault();
table.state.clear();
window.location.replace(EE.BASE + "&C=addons_modules&M=show_module_cp&module=ion&method=applications");
});
} );
这是保存的JSON，在开头有几个可见的false（加载后可见）：
{"time":"1449338856556","start":"0","length":"50","order":[["0","asc"]],"search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"},"columns":[{"visible":"false","search":{"search":"","smart":"false","regex":"true","caseInsensitive":"true"}},{"visible":"false","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"false","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"false","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"false","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}},{"visible":"true","search":{"search":"","smart":"true","regex":"false","caseInsensitive":"true"}}],"ColReorder":["0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31","32","33","34","35","36","37","38","39","40","41","42","43","44","45","46","47","48","49","50","51","52","53","54","55","56","57","58","59","60","61","62","63","64","65","66","67","68","69","70"]}
由于
答案 0 :(得分：1)
在我的情况下，datatables根据“stateDuration”和“time”属性拒绝旧数据。
解决方案：忽略状态持续时间
"stateSave": true,
"stateDuration": -1,
以上案例： “可见”：“false”可能应该是“可见的”： false
答案 1 :(得分：0)
经过一段时间的调试，我自己在这里对我有用..
这个问题是JSON中的所有值都是字符串，并且它们需要具有正确的数据表插件数据类型。
在“stateSaveCallback”ajax请求中保存你的状态我对json字符串执行了以下操作，然后它正确保存了所有值，然后加载了状态。
"stateSaveCallback": function (settings, data) {
var save_name = $('.save_name').val();
// Send an Ajax request to the server with the state object
$.ajax( {
"url": EE.BASE + "&C=addons_modules&M=show_module_cp&module=ion&method=state_save&action=save&save_name="+save_name,
//"data": data,
"data": JSON.stringify(data), // change to this..
"dataType": "json",
"type": "POST",
"success": function (response)
{
//console.log(response);
}
} );
},