added status filter

src/routes/validate/sample.ts

@@ -118,4 +118,10 @@ export default class SampleValidate {
     const {value, error} = Joi.object(joiObject).validate(data, {stripUnknown: true});
     return error !== undefined? null : value;
   }
+
+  static query (data) {
+    return Joi.object({
+      status: Joi.string().valid('validated', 'new', 'all')
+    }).validate(data);
+  }
 }