Rails - Add default value after rake db:migrate

Question

I added new migration that add a new column to a table. I ran the command 'rake db:migrate' Then I realize that I forgot to add a default value. How can I add default value after the rake db:migrate? (I'm storing the server on heroku service)

user4776684 · Accepted Answer · 2016-07-09 15:23:37Z

2

You can run rake db:rollback, then adjust your migration with default value, commit and push to heroku, and then run db:migrate again.

Another option is to create a new migration and use change_column_default:

  change_column_default :table_name, :column_name, "Default value"

answered Jul 9, 2016 at 15:23

user4776684

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Community · Accepted Answer · 2017-05-23 11:44:24Z

2

Create another migration

change_column :users, :admin, :boolean, :default => false

Same question as Add a default value to a column through a migration

edited May 23, 2017 at 11:44

CommunityBot

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answered Jul 9, 2016 at 15:19

Steve Wilhelm

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