Fix that renaming model fails

[sanfrecce-osaka]

Description

Renaming model fails when pushing save changes button.
The order of the assignments are inappropriate.

Before

[sanfrecce-osaka]

After

Issue

Migration succeeds, but the renamed model isn't displayed on the ER diagram.
The table name is changed but the class name and the file name are not.
How much names do I need to change?

• File name
  • ex. models/item.rb
• Class name(definition)
  • ex. class Item < ApplicationRecord end
• Class name(other places)
  • ex. Item.new
• Variable name
  • ex. @item

I think that changing names above automatically is difficult.
What do @amatsuda think?