separated groups and suppliers for material GET

src/routes/validate/material.ts

@@ -83,6 +83,16 @@ export default class MaterialValidate {  // validate input for material
     return error !== undefined? null : value;
   }
 
+  static outputGroups (data)  {// validate groups output and strip unwanted properties, returns null if not valid
+    const {value, error} = this.material.group.validate(data, {stripUnknown: true});
+    return error !== undefined? null : value;
+  }
+
+  static outputSuppliers (data)  {// validate suppliers output and strip unwanted properties, returns null if not valid
+    const {value, error} = this.material.supplier.validate(data, {stripUnknown: true});
+    return error !== undefined? null : value;
+  }
+
   static outputV() {  // return output validator
     return Joi.object({
       _id: IdValidate.get(),