Merge pull request #927 from pawl/fix_WYSIWYG

fix WYSIWYG example for bootstrap3

examples/wysiwyg/app.py

@@ -18,10 +18,16 @@ app.config['SQLALCHEMY_ECHO'] = True
 db = SQLAlchemy(app)
 
 
-# Define wtforms widget and field
+''' Define a wtforms widget and field.
+
+    WTForms documentation on custom widgets:
+    http://wtforms.readthedocs.org/en/latest/widgets.html#custom-widgets
+'''
 class CKTextAreaWidget(widgets.TextArea):
     def __call__(self, field, **kwargs):
-        kwargs.setdefault('class_', 'ckeditor')
+        # add WYSIWYG class to existing classes
+        existing_classes = kwargs.pop('class', '') or kwargs.pop('class_', '')
+        kwargs['class'] = u'%s %s' % (existing_classes, "ckeditor")
         return super(CKTextAreaWidget, self).__call__(field, **kwargs)