From 7d54eb319232d6012e61a9471901b278a752dac8 Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Mon, 21 Oct 2019 12:22:47 +0500
Subject: [PATCH] Add method OrgUnit#requires_parent?

---
 app/models/org_unit.rb | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/app/models/org_unit.rb b/app/models/org_unit.rb
index f499488..6c02ce6 100644
--- a/app/models/org_unit.rb
+++ b/app/models/org_unit.rb
@@ -36,13 +36,8 @@ class OrgUnit < ApplicationRecord
   validates :name, good_small_text: true, uniqueness: true
 
   validates :parent_unit,
-            presence: {
-              if: ->(record) { record.kind&.parent_kind },
-              message: :required,
-            },
-            absence: {
-              unless: ->(record) {record.kind&.parent_kind },
-            }
+            presence: { if: :requires_parent?, message: :required },
+            absence: { unless: :requires_parent? }
 
   validates :resource,
             presence: {
@@ -58,6 +53,14 @@ class OrgUnit < ApplicationRecord
 
   before_validation :set_level
 
+  ###########
+  # Methods #
+  ###########
+
+  def requires_parent?
+    kind&.parent_kind
+  end
+
 private
 
   def parent_matches_kind