supply default message for UserSchema.path("some.path").validate(vali…

…dator);

lib/schematype.js

@@ -361,6 +361,11 @@ SchemaType._isRef = function (self, value, init) {
 
 function ValidatorError (path, type, message) {
   message = message || errorMessages[type];
+
+  if ('undefined' === typeof message) { // if still don't have message
+    message = 'Validator failed for path ' + path;
+  }
+
   MongooseError.call(this, normalizeMessage(path, message));
   Error.captureStackTrace(this, arguments.callee);
   this.name = 'ValidatorError';
@@ -436,7 +441,7 @@ CastError.prototype.__proto__ = MongooseError.prototype;
  *       type: Date
  *     } // My Birth Date
  *
- * If you don't like this format, supply `{path|Your own label}` in your error own message
+ * If you don't like this format, supply `{path|Your own label}` in your own error message
  *
  *     name: {
  *       first: {