A very very simple jQuery add-on to validate form fields by their names.
<div class="form-group">
<label class="col-sm-4 control-label">Client</label>
<div class="col-sm-8">
<input name="userName" type="text" class="form-control">
<div class="help-block"></div>
</div>
</div><!-- Client -->
$ ->
$('form[name=myForm]').formValidate
userName:
validate: (v) -> v != ''
errorMessage: 'Required.'