Rails set default DateTime to now

Question

In my app I have teams and each team has a game time every week. I want the game times to be set to \'now\' as a default. My table is set up like so

create_         


        

Answer 1

The way I found, was to do a migration on an existing datetime column, like this:

#migration
execute("ALTER TABLE teams ALTER COLUMN wk1_time SET DEFAULT CURRENT_TIMESTAMP")

that produces a schema.rb entry shown like this:

#schema.rb
t.datetime "wk1_time",                    default: "now()", null: false

The "now()" is a string sent to postgresql and evaluated at runtime, upon each insert