bin/rake db:migrate:reset
bin/rake db:seed
# bin/rake db:migrate:reset db:seed
# -> fail!!
bin/rake db:rollback STEP=2
bin/rake db:migrate:status
Running via Spring preloader in process 67577
database: dmc_development
Status Migration ID Migration Name
--------------------------------------------------
up 20170120080653 Create users
down 20170120080805 Modify user data
down 20170120081120 Add column to user
bin/rails runner 'puts User.all.map(&:name)'
Running via Spring preloader in process 71651
hoge
fuga
hage
bin/rake db:migrate
# -> fail!!