I am taking input of date of birth and date of death. Validation required
- date of death should be more than date of birth
- Date format to be dd/mm/yyyy
- Dates to be less than or equal to today.
Validate doesn't work as expected and can't figure out the problem. Please help.
JS libraries used
- JQuery UI for Calendar/Datepicker
- JQuery validate for form validation
Additional methods for validation library
var today = new Date(); var authorValidator = $("#itemAuthorForm").validate({ rules : { dateOfBirth : { required : false, date : true, dateITA : true, dateLessThan : '#expiredDate' }, expiredDate : { required : false, date : true, dateITA : true, dateGreaterThan : "#dateOfBirth" } }, onfocusout : function(element) { if ($(element).val()) { $(element).valid(); } } }); var dateOptionsDOE = { maxDate : today, dateFormat : "dd/mm/yy", changeMonth : true, changeYear : true, onClose : function(selectedDate) { $("#dateOfBirth").datepicker("option", "maxDate", selectedDate); } }; var dateOptionsDOB = { maxDate : today, dateFormat : "dd/mm/yy", changeMonth : true, changeYear : true, onClose : function(selectedDate) { $("#expiredDate").datepicker("option", "minDate", selectedDate); } }; jQuery.validator.addMethod("dateGreaterThan", function(value, element, params) { if ($(params).val() === "") return true; if (!/Invalid|NaN/.test(new Date(value))) { return new Date(value) > new Date($(params).val()); } return isNaN(value) && isNaN($(params).val()) || (Number(value) > Number($(params).val())); }, 'Must be greater than {0}.'); jQuery.validator.addMethod("dateLessThan", function(value, element, params) { if ($(params).val() === "") return true; if (!/Invalid|NaN/.test(new Date(value))) { return new Date(value) < new Date($(params).val()); } return isNaN(value) && isNaN($(params).val()) || (Number(value) < Number($(params).val())); }, 'Must be less than {0}.'); $("#expiredDate").datepicker( $.extend({}, $.datepicker.regional['en-GB'], dateOptionsDOE)); $("#dateOfBirth").datepicker( $.extend({}, $.datepicker.regional['en-GB'], dateOptionsDOB));
This question is related to
javascript
jquery
validation
date
datetime
The answer is
You don't need the date validator. It doesn't support dd/mm/yyyy format, and that's why you are getting "Please enter a valid date" message for input like 13/01/2014. You already have the dateITA validator, which uses dd/mm/yyyy format as you need.
Just like the date validator, your code for dateGreaterThan and dateLessThan calls new Date for input string and has the same issue parsing dates. You can use a function like this to parse the date:
function parseDMY(value) {
var date = value.split("/");
var d = parseInt(date[0], 10),
m = parseInt(date[1], 10),
y = parseInt(date[2], 10);
return new Date(y, m - 1, d);
}
I encountered a similar problem in my project. After struggling a lot, I found this solution:
if ($.datepicker.parseDate("dd/mm/yy","17/06/2015") > $.datepicker.parseDate("dd/mm/yy","20/06/2015"))
// do something
You DO NOT NEED plugins like jQuery Validate or Moment.js for this issue. Hope this solution helps.
If you use the moment js library it can easily be done like this -
jQuery.validator.addMethod("validDate", function(value, element) {
return this.optional(element) || moment(value,"DD/MM/YYYY").isValid();
}, "Please enter a valid date in the format DD/MM/YYYY");
This will also checks in leap year. This is pure regex, so it's faster than any lib (also faster than moment.js). But if you gonna use a lot of dates in ur code, I do recommend to use moment.js
var dateRegex = /^(?=\d)(?:(?:31(?!.(?:0?[2469]|11))|(?:30|29)(?!.0?2)|29(?=.0?2.(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00)))(?:\x20|$))|(?:2[0-8]|1\d|0?[1-9]))([-.\/])(?:1[012]|0?[1-9])\1(?:1[6-9]|[2-9]\d)?\d\d(?:(?=\x20\d)\x20|$))?(((0?[1-9]|1[012])(:[0-5]\d){0,2}(\x20[AP]M))|([01]\d|2[0-3])(:[0-5]\d){1,2})?$/;
console.log(dateRegex.test('21/01/1986'));
This validates dd/mm/yyy dates. Edit your jquery.validate.js and add these.
Reference(Regex): Regex to validate date format dd/mm/yyyy
dateBR: function( value, element ) {
return this.optional(element) || /^(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[1,3-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0-8])(\/|-|\.)(?:(?:0?[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$/.test(value);
}
messages: {
dateBR: "Invalid date."
}
classRuleSettings: {
dateBR: {dateBR: true}
}
Usage:
$( "#myForm" ).validate({
rules: {
field: {
dateBR: true
}
}
});
This works fine for me.
$(document).ready(function () {
$('#btn_move').click( function(){
var dateformat = /^(0?[1-9]|[12][0-9]|3[01])[\/\-](0?[1-9]|1[012])[\/\-]\d{4}$/;
var Val_date=$('#txt_date').val();
if(Val_date.match(dateformat)){
var seperator1 = Val_date.split('/');
var seperator2 = Val_date.split('-');
if (seperator1.length>1)
{
var splitdate = Val_date.split('/');
}
else if (seperator2.length>1)
{
var splitdate = Val_date.split('-');
}
var dd = parseInt(splitdate[0]);
var mm = parseInt(splitdate[1]);
var yy = parseInt(splitdate[2]);
var ListofDays = [31,28,31,30,31,30,31,31,30,31,30,31];
if (mm==1 || mm>2)
{
if (dd>ListofDays[mm-1])
{
alert('Invalid date format!');
return false;
}
}
if (mm==2)
{
var lyear = false;
if ( (!(yy % 4) && yy % 100) || !(yy % 400))
{
lyear = true;
}
if ((lyear==false) && (dd>=29))
{
alert('Invalid date format!');
return false;
}
if ((lyear==true) && (dd>29))
{
alert('Invalid date format!');
return false;
}
}
}
else
{
alert("Invalid date format!");
return false;
}
});
});
Source: Stackoverflow.com