Relations
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This section provides comprehensive guides for defining and working with associations between models in CQL Active Record. Relationships are a core part of modeling real-world data and enable you to express connections such as ownership, membership, and linkage between records.
Overview of Association Types: Learn the differences between one-to-one, one-to-many, and many-to-many relationships.
Step-by-Step Guides: Each sub-guide covers how to set up, use, and query each type of association in CQL, with practical code examples.
Best Practices: Tips for managing associations, avoiding common pitfalls, and writing maintainable code.
: How to set up and use belongs_to associations (e.g., a comment belongs to a post).
: How to define and work with has_one relationships (e.g., a user has one profile).
: How to manage has_many associations (e.g., a post has many comments).
: How to implement many-to-many relationships using join tables (e.g., posts and tags).
Each guide includes:
Schema and model setup
Creating and querying associations
Modifying and deleting related records
Eager loading and performance tips
Use these guides to master associations in your CQL-powered Crystal applications!