CODEWITHSUNDEEP
jqueryjquery-pluginsjquery-validate
black_belt
black_belt

Reputation: 6799

Validating array inputs using jquery validation plugin

I have the following form. I am trying to validate the inputs using jquery validation plugin. I have tried some codes but its not working. When I click on the submit button it just goes to form's action.

<form name="voucherform" action="something" method="post">
  <input type="text" name="reg_number[]" value="" />
  <input type="text" name="reg_number[]" value="" />
  <input type="text" name="reg_number[]" value="" />
  <input type="submit" name="submit" value="submit" />

Could you please show me how to validate the above form using jquery validation plugin?

Thanks :)

My Jquery code:

 <script type="text/javascript" src="<?php echo base_url();?>support/datepicker/js/jquery-1.7.2.min.js"></script>
 <script type="text/javascript" src="<?php echo base_url();?>support/js/jquery.validate.js"></script>

 <script>
  $(document).ready(function() {

// validate signup form on keyup and submit
var validator = $("#voucherform").validate({
    showErrors: function(errorMap, errorList) {
        $(".errormsg").html($.map(errorList, function (el) {
            return el.message;
        }).join(", "));
    },
    wrapper: "span",
    rules: {

        reg_number[]: {
            required: true,
            minlength: 2,
            remote: {
                url: '<?php echo base_url();?>sales/invoice_check', async: false,
                type: 'post'
            },

        }
    },
    messages: {

        reg_number[]: {
            required: "Enter Reg Number",
            minlength: jQuery.format("Enter at least {0} characters"),
            remote: jQuery.format("{0} is already in use")
        },
    }
    });
    });
   </script>

Upvotes: 13

Views: 40549

Answers (4)

Bugfixer
Bugfixer

Reputation: 2617

Just sharing a method to validate checkbox with index and only one of them is mandatory.

<input type="checkbox" value="0" name="is_appraisal[0]" class="is_appraisal_f siblingcheckbox" id="is_appraisal_f">

<input type="checkbox" value="1" name="is_appraisal[1]" checked="checked" class="is_appraisal_s siblingcheckbox" id="is_appraisal_s">

Jquery Validation for this :

       $.validator.addMethod("onechecked", function (value, elem, param) {
            if ($(".siblingcheckbox:checkbox:checked").length > 0) {
                return true;
            } else {
                return false;
            }
        }, "You must select at least one!");

        $.validator.addClassRules("siblingcheckbox", {
            onechecked: true
        });

Upvotes: 0

user995789
user995789

Reputation: 279

here is my way

 'reg_number[]':{ 
    required:function(){
      return $("input[name='reg_number[]']").filter(function(){
        return $.trim($(this).val()).length>0
      }).length==0
    }
 }

Hope it has little help for you.

Upvotes: 2

Alex
Alex

Reputation: 1073

You can find a good answer here: jquery-validation-for-array-of-input-elements. 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();
}

Upvotes: 5

Andrew Whitaker
Andrew Whitaker

Reputation: 126082

You have two problems:

  1. You aren't selecting the form element properly.

    You're looking for a form with id "voucherform" and your markup does not contain one. You probably want to change your selector to:

    $("form[name='voucherform']").validate({ ... });

  2. Brackets ([]) are not valid in JavaScript identifiers. This means that your script is not being parsed correctly. To resolve this, just wrap those fields that have brackets in them in quotes, i.e. 'reg_number[]' instead of reg_number[].

Tweaked validate code:

var validator = $("form[name='voucherform']").validate({
    showErrors: function(errorMap, errorList) {
        $(".errormsg").html($.map(errorList, function(el) {
            return el.message;
        }).join(", "));
    },
    wrapper: "span",
    rules: {
        'reg_number[]': {
            required: true,
            minlength: 2,
            remote: {
                url: '<?php echo base_url();?>sales/invoice_check',
                async: false,
                type: 'post'
            }

        }
    },
    messages: {
        'reg_number[]': {
            required: "Enter Reg Number",
            minlength: jQuery.format("Enter at least {0} characters"),
            remote: jQuery.format("{0} is already in use")
        }
    }
});

Example: http://jsfiddle.net/hfrhs/

Upvotes: 16

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