JQuery Validation for Array of Input Elements

Question

I need to validate an array of input text elements (mileage): For example:

Answer 1

In jquery.validate.js, we can find a function named checkForm, we have to modify it as below:

checkForm: function() {
                this.prepareForm();
                for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
                    if (this.findByName( elements[i].name ).length != undefined && this.findByName( elements[i].name ).length > 1) {
                        for (var cnt = 0; cnt < this.findByName( elements[i].name ).length; cnt++) {
                            this.check( this.findByName( elements[i].name )[cnt] );
                        }
                        } else {
                    this.check( elements[i] );
                }
                }
            return this.valid();
    }

Answer 2

Using jquery validate 1.19.1 and modifying the jquery.validate.js file on line 465, replacing with this function should be fine.

checkForm: function() {
            this.prepareForm();
            for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
                var checkingElements = this.findByName( elements[i].name ).not(this.settings.ignore);
                if (checkingElements.length !== undefined && checkingElements.length > 1) {
                    for (var cnt = 0; cnt < checkingElements.length; cnt++) {
                        this.check( checkingElements[cnt] );
                    }
                } else {
                    this.check( elements[i] );
                }
            }
            return this.valid();
        },

I hope to be of help ;)

Answer 3

Based on eddy answer, this function takes into count also the ignore setting.

        checkForm: function() {
            this.prepareForm();
            for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
                var checkingElements = this.findByName( elements[i].name ).not(this.settings.ignore);
                if (checkingElements.length !== undefined && checkingElements.length > 1) {
                    for (var cnt = 0; cnt < checkingElements.length; cnt++) {
                        this.check( checkingElements[cnt] );
                    }
                } else {
                    this.check( elements[i] );
                }
            }
            return this.valid();
        },

Answer 4

You have to loop through in these cases, like this:

$(document).ready(function() {
    $("#form1").validate({
        submitHandler: function(form) {
            form.submit();
        }
    });  
    $("#form1 input[name='mileage']").each(function() {
       $(this).rules("add", { required: true });
    });  
});

.rules() only affects the first match, so you need a .each() on there to loop through and add any rules to all matches.