将变量值设置为jquery message + jquery.validate

Question

How to get value of var total in message,

and also i tried declare inside function but it gives undefined variable

var total = '';
$.validator.addMethod("valueNotEquals", function (value, element, arg) {
    var fund_old = $("#current_fund").val();
    var fund_new = $("#new_fund").val();

    total = parseFloat(9999999999.999999) - parseFloat(fund_old);

    if (parseFloat(fund_new) <= parseFloat(total)) {
        return true;
    } else {
        return false;
    }
    return true;
}, 'sry sktiman' + total + 'is remaining value');

In result i am getting blank value of total

Answer 1

According to the documentation for jQuery.validator.addMethod() you can use jQuery.validator.format() which generates a function that receives the arguments to the validation method and returns a string message, so creating a function that ignores any arguments and returns a string should work:

var total = '';
$.validator.addMethod("valueNotEquals", function (value, element, arg) {
    var fund_old = $("#current_fund").val();
    var fund_new = $("#new_fund").val();

    total = parseFloat(9999999999.999999) - parseFloat(fund_old);

    if (parseFloat(fund_new) <= parseFloat(total)) {
        return true;
    } else {
        return false;
    }
    return true;
}, function() {return 'sry sktiman' + total + 'is remaining value'});

---

EDIT

The fiddle for this solution can be found here (thanks to Sparky for providing the code).

Answer 2

The optional parameters can be used inside the message.

The third argument, the optional parameters, (you call it arg ) can be represented within your code as arg[0] , arg[1] , etc.

Then the corresponding values can be used in your message as {0} , {1} , etc.

Do your calculation external to .addMethod() and pass the value in using the arg argument.

$.validator.addMethod("valueNotEquals", function(value, element, arg){

    var fund_old= $("#current_fund").val();
    var fund_new =$("#new_fund").val();

    // do this calculation where the rule is declared. See 'validate()'
    //total =  parseFloat(9999999999.999999) - parseFloat(fund_old);

    if(parseFloat(fund_new) <= parseFloat(total)){
        return true;
    } else {
        return false;
    }
    return true;
},'sry sktiman {0} is remaining value');

Since you didn't show your .validate() or the HTML markup, maybe something like this...

$('#myform').validate({
    rules: {
        fund_old: {
            // your rules
        },
        fund_new: {
            valueNotEquals: function() {
                return ($parseFloat(9999999999.999999) - parseFloat($("#current_fund").val()));
            }
        }
    }
});

Crude demo: http://jsfiddle.net/eZm7x/

Answer 3

Try,

var total = '';
$.validator.addMethod("valueNotEquals", function(value, element, arg){
  var fund_old= $("#current_fund").val();
  var fund_new =$("#new_fund").val();

 total =  parseFloat(9999999999.999999) - parseFloat(fund_old);

      if(parseFloat(fund_new) <= parseFloat(total)){
        return true;
      }else{
        return false;
      }
 return true;
 },'sry sktiman'+ (parseFloat(9999999999.999999) - parseFloat($("#current_fund").val())) + 'is remaining value');

Answer 4

In addMethod Documentation says: "Add a custom validation method. It must consist of a name (must be a legal javascript identifier), a javascript based function and a default string message."

So, you are adding a custom validation function to plugin, and NOT executing that function.

Try to set a field with your custom validation and fill that field to run your custom function. Just AFTER that check total var value.

Answer 5

Just add this line function() {return 'sry sktiman' + total + 'is remaining value'} as your second argument, you can easily use this variable

var total = ''; 
$.validator.addMethod("valueNotEquals", function (value, element, arg) {
//Your default code here
}, function() {return 'sry sktiman' + total + 'is remaining value'});