Using mocks and explicit contracts to test remote dependencies EctoAutoslugField: Added Ecto 2 support

Strategies for Migrating a Phoenix App on Heroku

For those of you who have deployed to Heroku and are sick of running heroku run mix ecto.migrate

https://blog.learnphoenix.io/strategies-for-migrating-a-phoenix-app-on-heroku-ed0ea3aee4e5