Overview

Ecto

Handles external data such as databases and JSON APIs

• Repo
• Query
• Schema
• Changset

Repo: communicates with external data source or database

Has common methods:

• get(): gets the record
• insert(): creates the record in that database
• update()
• delete()
• transaction() …

Phoenix uses Repo through:

• config.exs as config :appname, Appname.Repo, …
• repo.ex in /lib/appname/repo.ex

Common methods

Repo.count()
Repo.update_all("tablename", set: [updated_at: Ecto.DateTime.utc])