diff --git a/sql.rb b/sql.rb
index 2eef424..70305e1 100644
--- a/sql.rb
+++ b/sql.rb
@@ -15,7 +15,10 @@ def get_brand_id(brand)
   return brand_id
 end
 
-def insert_part(name = '', brand_id, code = '', code_advanced = '')
+def insert_part(name, brand_id, code, code_advanced)
+  code = code.to_s()
+  code_advanced = code_advanced.to_s()
+  name = name.to_s()
   id = nil
   name = $database.escape(name)
   if code_advanced != '' then
@@ -56,6 +59,6 @@ def link_crosses(part_id_a, part_id_b)
     source = count + 1
   end
   # вставляем новую строку на основе одного источника, sources = 1
-  $database.query("insert ignore into crosses (part_id_a, part_id_b, sources) VALUES (#{part_b_id}, #{id}, #{source})")
-  $database.query("insert ignore into crosses (part_id_a, part_id_b, sources) VALUES (#{id}, #{part_b_id}, #{source})")
+  $database.query("insert ignore into crosses (part_id_a, part_id_b, sources) VALUES (#{part_id_b}, #{part_id_a}, #{source})")
+  $database.query("insert ignore into crosses (part_id_a, part_id_b, sources) VALUES (#{part_id_a}, #{part_id_b}, #{source})")
 end