Rails Active Record Patterns Master Active Record patterns for building robust Rails models with proper associations, validations, scopes, and query optimization. Overview Active Record is Rails' Object-Relational Mapping (ORM) layer that connects model classes to database tables. It implements the Active Record pattern, where each object instance represents a row in the database and includes both data and behavior. Installation and Setup Creating Models Database Configuration Core Patterns 1. Basic Model Definition 2. Associations 3. Advanced Queries 4. Validations 5. Callbacks 6. Enum Patte…