activerecord

Installation and usage

This skill should be used when the user asks about "ActiveRecord", "database queries", "associations", "validations", "migrations", "scopes", "callbacks", "N+1 queries", "eager loading", "includes", "joins", "eager_load", "preload", "database optimization", "model relationships", "has_many", "belongs_to", "has_one", "polymorphic associations", "pluck", "exists", or needs guidance on database-related Rails topics.

skills use activerecord