In the last article we looked at using Ecto schemas to read records and associations from a database built according to Rails naming conventions. This time we will extend the examples used in that article to see how Ecto changesets can help us write records to the database in a safe and consistent way.

The example apps can be found at PlaygroundRails


I recently migrated a Rails JSONAPI server to Phoenix, and in the process I learned a lot about using Ecto with a database that conforms to Rails naming conventions. It turned out that I was able to share an existing Rails database between the Rails and Phoenix implementations of the server during development, which allowed me to use a phased approach...