How to Validate CKEditor with bootstrapvalidation?

Question

Using CKEditor 4.5.6 with bootstrapvalidator 0.5.2

I followed example from website http://formvalidation.io/examples/ckeditor/ however couldn't make it validate.

Also getting JavaScript Console Error in Chrome Browser(Other Browser didn't check) as:

Uncaught TypeError: Cannot read property 'getEditor' of undefined

Above Error is displayed only on Form Submission. PHP Form loaded using $.load(...) and posted using $.post(...)

Note:- I couldn't simulate error in JSFiddle. I want to validate CKEditor using bootstrapvalidator

Added Full code in JSFiddle https://jsfiddle.net/nxxxbw90/4/

var editor;
$(document).ready(function(){
	editor=CKEDITOR.replace('policyta', {
		removePlugins: 'sourcearea'
	});
  $('#setpolicyform').bootstrapValidator({
		message: 'This value is not valid',
        ignore: [':disabled'],
		feedbackIcons: {
			valid: 'glyphicon glyphicon-ok',
			invalid: 'glyphicon glyphicon-remove',
			validating: 'glyphicon glyphicon-refresh'
		},
		fields: {
			policyta: {
				group: '.lnbrd',
				validators: {
					notEmpty: {
						message: 'The Guidelines is required and cannot be empty'
					},
					callback: {
						message: 'The Guidelines must be less than 50000 characters long',
						callback: function(value, validator, $field) {
							if (value === '') {
								return true;
							}
							var div  = $('<div/>').html(value).get(0),
								text = div.textContent || div.innerText;

							return text.length <= 50000;
						}
					}
				}
			}
		}
	}).on('success.form.bv', function(e){
		e.preventDefault();
		e.stopImmediatePropagation();
		var $form = $("#setpolicyform"), $url = $form.attr('action'); 
		$.post($url,$form.serialize()).done(function(dte){ 
			$("#policy-content").html(dte); 
			loadfunctions(); 
		});
	});
	editor.on('change', function(ev){
		$("#setpolicyform").bootstrapValidator('revalidateField', 'policyta');
	});
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.bootstrapvalidator/0.5.2/js/bootstrapValidator.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/jquery.bootstrapvalidator/0.5.2/css/bootstrapValidator.css" rel="stylesheet"/>
<script src="https://cdn.ckeditor.com/4.5.6/standard/ckeditor.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<div id="policy-content">
<form role="form" method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>" name="setpolicyform" id="setpolicyform">
	<div class='box-body pad'>
		<div class="form-group">
		<div class="lnbrd">
		<textarea class="form-control textarea" name="policyta" id="policyta" style="width: 100%; height: 400px; font-size: 14px; line-height: 18px; border: 1px solid #dddddd; padding: 10px;"></textarea>
		</div>
		</div>
	</div>
	<div class="box-footer clearfix">
		<button type="submit" class="btn btn-danger pull-right" id="setpolicyformsubmitbtn">SAVE</button>
	</div>
	</form>
  </div>

Answer 1

Couple of mistakes in your approach.

1. you don't need to initiate CKEditor on textarea, bootstrapValidator will do it for you.
2. you need to excluded: [':disabled'], not ignore: [':disabled'],
3. if (value === '') {return true;} value check inside callback function you are using in bootstrapValidator, no need of it.

Notes:

1. formValidation and bootstrapValidator are two different plugins so one plugin code reference will not work in other plugin
2. you have to use CKEditor v4.2 or later (which you are already using)

Here is working validation code, CKEditor with bootstrapvalidator

$(document).ready(function() {
  $('#setpolicyform').bootstrapValidator({
      excluded: [':disabled'],
      feedbackIcons: {
        valid: 'glyphicon glyphicon-ok',
        invalid: 'glyphicon glyphicon-remove',
        validating: 'glyphicon glyphicon-refresh'
      },
      fields: {
        policyta: {
          group: '.lnbrd',
          validators: {
            notEmpty: {
              message: 'The Guidelines is required and cannot be empty'
            },
            callback: {
              message: 'The Guidelines must be less than 50000 characters long',
              callback: function(value, validator, $field) {
                var div = $('<div/>').html(value).get(0),
                  text = div.textContent || div.innerText;
                return text.length <= 50000;
              }
            }
          }
        }
      }
    }).find('[name="policyta"]')
    .ckeditor()
    .editor
    .on('change', function() {
      $('#setpolicyform').bootstrapValidator('revalidateField', 'policyta');
    });
});

Working Fiddle Example