How to custom validation?

[cedarice]

I clone a date type, I want to validate the date user picked is two days after today or not, but i could not write the proper function to validate it.
please help me, thanks.

[herongyang]

var cf_my_date = {};
cf_my_date.two_day_after = function() {
var errors = [];
for (var i=0; i<rsv_custom_func_errors.length; i++) {
if (rsv_custom_func_errors[i].func != "cf_my_date.two_day_after") {
continue;
}
var field_name = rsv_custom_func_errors[i].field;
var fields = $("input[name^="" + field_name + ""]");
var field_value = fields.val();
var date_input = new Date(field_value);
var today = new Date();
var difference = (date_input - today)/(2436001000);
if (difference<2) {
var el = document.edit_submission_form[field_name];
errors.push([el, rsv_custom_func_errors[i].err]);
}
}
if (errors.length) {
return errors;
}

return true;
}

Hope the above JS function works for you.

Herong

[cedarice]

var cf_my_date = {};
cf_my_date.two_day_after = function() {
var errors = [];
for (var i=0; i<rsv_custom_func_errors.length; i++) {
if (rsv_custom_func_errors[i].func != "cf_my_date.two_day_after") {
continue;
}
var field_name = rsv_custom_func_errors[i].field;
var fields = $("input[name^="" + field_name + ""]");
var field_value = fields.val();
var date_input = new Date(field_value);
var today = new Date();
var difference = (date_input - today)/(24_3600_1000);
if (difference<2) {
var el = document.edit_submission_form[field_name];
errors.push([el, rsv_custom_func_errors[i].err]);
}
}
if (errors.length) {
return errors;
}

return true;
}

Hope the above JS function works for you.

Herong

Thanks for you kindly reply.
I need a custom function in validation tab, but I cound not found it.

[herongyang]

"cf_my_date.two_day_after" is function to be used on the validation tab. But you also need enter the above code in the Displaying > JS tab.

[geprieto]

Almost perfect. But the code had some errors. This is what finally worked for me:

var cf_my_date = {};
cf_my_date.two_day_after = function() {
var errors = [];
for (var i=0; i<rsv_custom_func_errors.length; i++) {
if (rsv_custom_func_errors[i].func != "cf_my_date.two_day_after") {
continue;
}

var field_name = rsv_custom_func_errors[i].field;
var fields = $('input[name="'+ field_name + '"]');
var field_value = fields.val();
var date_input = new Date(field_value);
var today = new Date();
var difference = (date_input - today)/(2436001000);
if (difference<2) {
var el = document.edit_submission_form[field_name];
errors.push([el, rsv_custom_func_errors[i].err]);
}
}
if (errors.length) {
return errors;
}

return true;
}