How to use migration

Yavor Ivanov over at rubycorner.net started a mini series on Rails migration. So far there is one article and I already learned a few things that I didn't know.

How to use Rails Migrations - Part I

I created a table with :created_at column as :null => false but I didn't define the default value so I was having problem with specifying the datetime in my test fixture.

I solved that problem by putting this in my test fixture:

created_at: <%= DateTime.now.strftime('%y-%m-%d %H:%M:%S') %>

What I really should have done is created the column like this.

t.column :created_at, :datetime, :default => Time.now