[英]Use jQuery UI datepicker with async AJAX requests
我正在嘗試在 jquery-ui 日期選擇器中啟用特定日期。 到目前為止,我已經設置了我的 sql 腳本和 json 文件,除了響應時間之外一切正常,因為我已將異步設置為 false。 我的 jquery 代碼是。
var today = new Date();
$("#pickDate").datepicker({
minDate: today,
maxDate: today.getMonth() + 1,
dateFormat: 'dd-mm-yy',
beforeShowDay: lessonDates,
onSelect: function(dateText) {
var selectedDate = $(this).datepicker('getDate').getDay() - 1;
$("#modal").show();
$.get("http://localhost/getTime.php", {
lessonDay: selectedDate,
lessonId: $("#lesson").val()
}, function(data) {
$("#attend-time").html("");
for (var i = 0; i < data.length; i++) {
$("#attend-time").append("<option>" + data[i].lessonTime + "</option>");
$("#modal").hide();
}
}, 'json');
}
});
function lessonDates(date) {
var day = date.getDay();
var dayValues = [];
$.ajax({
type: "GET",
url: "http://localhost/getLessonDay.php",
data: {
lessonId: $("#lesson").val()
},
dataType: "json",
async: false,
success: function(data) {
for (var i = 0; i < data.length; i++) {
dayValues.push(parseInt(data[i].lessonDay));
}
}
});
if ($.inArray(day, dayValues) !== -1) {
return [true];
} else {
return [false];
}
}
誰能幫我嗎? 我重復上面的代碼工作正常,但由於 async=false 而響應時間不好。
謝謝!
你做錯了一切。 在您的示例中,該月的每一天都會觸發一個同步AJAX請求。 您需要這樣重構代碼(粗略的概述):
// global variable, accessible inside both callbacks
var dayValues = [];
$("#pickDate").datepicker({
beforeShowDay: function(date) {
// check array and return false/true
return [$.inArray(day, dayValues) >= 0 ? true : false, ""];
}
});
// perhaps call the following block whenever #lesson changes
$.ajax({
type: "GET",
url: "http://localhost/getLessonDay.php",
async: true,
success: function(data) {
// first populate the array
for (var i = 0; i < data.length; i++) {
dayValues.push(parseInt(data[i].lessonDay));
}
// tell the datepicker to draw itself again
// the beforeShowDay function is called during the processs
// where it will fetch dates from the updated array
$("#pickDate").datepicker("refresh");
}
});
$.when(getdates()).done(function(){
//this code is executed when all ajax calls are done => the getdates() for example
$('#res_date').datepicker({
startDate: '-0m',
format: 'dd/mm/yyyy',
todayHighlight:'TRUE',
autoclose: true,
datesDisabled: unavailableDates,
});
});
function getdates(){
return $.ajax({
type:'GET',
url:'/available_dates',
success:function(response){
for(let i = 0; i < response.data.length; i++){
unavailableDates.push(response.data[i]);
}
console.log(unavailableDates);
return unavailableDates;
},
});
}
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