ecto-guidelines

What problem does it solve?

This Skill provides clear, battle-tested guidelines for using Ecto effectively in Elixir projects, reducing runtime errors and inconsistencies.

Core Features & Use Cases

• Preloading associations in queries to avoid N+1 issues and improve performance.
• Correct schema field types and definitions to align with database columns and types.
• Changeset validation patterns and secure handling of programmatic fields to prevent mass-assignment risks.
• Safe access to changeset data using Ecto.Changeset.get_field and avoiding map-style access on changesets.
• Migration best practices and generation conventions to ensure proper timestamps and naming.

Quick Start

Audit a sample module against these guidelines and adjust preloading, field handling, and changeset patterns accordingly.