ORM Assignment

gistfile1.txt

[3] pry(main)> nesting
Nesting status:
--
0. main (Pry top level)
[4] pry(main)> post = Post.first
  Post Load (0.1ms)  SELECT  "posts".* FROM "posts" ORDER BY "posts"."id" ASC LIMIT ?  [["LIMIT", 1]]
=> #<Post:0x007fac892b29f0
 id: 1,
 title: "First Post",
 body: "This is the first post in our system",
 created_at: Sat, 20 Jan 2018 04:41:10 UTC +00:00,
 updated_at: Sat, 20 Jan 2018 04:41:10 UTC +00:00>
[5] pry(main)> cd post
[6] pry(#<Post>):1> nesting
Nesting status:
--
0. main (Pry top level)
1. #<Post>
[7] pry(#<Post>):1> self.to_s
=> "#<Post:0x007fac892b29f0>"
[8] pry(#<Post>):1> self.title = 'some new title'
=> "some new title"
[9] pry(#<Post>):1> self.body = 'some new body'
=> "some new body"
[10] pry(#<Post>):1> self.changes
=> {"title"=>["First Post", "some new title"],
 "body"=>["This is the first post in our system", "some new body"]}
[11] pry(#<Post>):1> self.save!
   (0.1ms)  begin transaction
  SQL (0.6ms)  UPDATE "posts" SET "title" = ?, "body" = ?, "updated_at" = ? WHERE "posts"."id" = ?  [["title", "some new title"], ["body", "some new body"], ["updated_at", "2018-01-20 04:54:20.137510"], ["id", 1]]
   (1.3ms)  commit transaction
=> true
[12] pry(#<Post>):1>