<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<form id="surveyForm" class="form-horizontal">
<!-- The option field template containing an option field and a Remove button -->
<div class="form-group hide" id="optionTemplate">
<div class="col-xs-offset-3 col-xs-5">
<input class="form-control" type="text" name="option[]" />
</div>
<div class="col-xs-4">
<button type="button" class="btn btn-default removeButton"><i class="fa fa-minus"></i></button>
</div>
</div>
</form>
</div>
</div>
$(document).ready(function() {
// The maximum number of options
var MAX_OPTIONS = 10;
$('#surveyForm')
.formValidation({
framework: 'bootstrap',
icon: {
valid: 'glyphicon glyphicon-ok',
invalid: 'glyphicon glyphicon-remove',
validating: 'glyphicon glyphicon-refresh'
},
fields: {
question: {
validators: {
notEmpty: {
message: 'The question required and cannot be empty'
}
}
},
'option[]': {
validators: {
notEmpty: {
message: 'The option required and cannot be empty'
},
stringLength: {
max: 100,
message: 'The option must be less than 100 characters long'
}
}
}
}
})
// Add button click handler
.on('click', '.addButton', function() {
var $template = $('#optionTemplate'),
$clone = $template
.clone()
.removeClass('hide')
.removeAttr('id')
.insertBefore($template),
$option = $clone.find('[name="option[]"]');
// Add new field
$('#surveyForm').formValidation('addField', $option);
})
// Remove button click handler
.on('click', '.removeButton', function() {
var $row = $(this).parents('.form-group'),
$option = $row.find('[name="option[]"]');
// Remove element containing the option
$row.remove();
// Remove field
$('#surveyForm').formValidation('removeField', $option);
})
// Called after adding new field
.on('added.field.fv', function(e, data) {
// data.field --> The field name
// data.element --> The new field element
// data.options --> The new field options
if (data.field === 'option[]') {
if ($('#surveyForm').find(':visible[name="option[]"]').length >= MAX_OPTIONS) {
$('#surveyForm').find('.addButton').attr('disabled', 'disabled');
}
}
})
// Called after removing the field
.on('removed.field.fv', function(e, data) {
if (data.field === 'option[]') {
if ($('#surveyForm').find(':visible[name="option[]"]').length < MAX_OPTIONS) {
$('#surveyForm').find('.addButton').removeAttr('disabled');
}
}
});
});
