Question 1

How do I use FrozenRecord with JSON files instead of YAML?

Accepted Answer

Set the backend in your model to FrozenRecord::Backends::Json, and ensure your JSON file contains an array of objects with keys matching attribute names, similar to the YAML example.

Question 2

FrozenRecord vs ActiveRecord for static data in Rails?

Accepted Answer

FrozenRecord is better for static, read-only data like configuration files, as it avoids database overhead, while ActiveRecord is necessary for dynamic data with writes, relationships, and complex queries.

Question 3

How to add indices for faster queries in FrozenRecord?

Accepted Answer

Use the add_index method in your model class, e.g., add_index :name, unique: true, to create indices on attributes, which improves performance by reducing linear scans.

Question 4

Can FrozenRecord handle real-time data updates or API data?

Accepted Answer

No, it's designed for static files; for real-time data, you'd need to manually reload files or implement custom logic, but it's not built for frequent changes.

Question 5

How to test models with FrozenRecord in a Rails app?

Accepted Answer

Use FrozenRecord::TestHelper to load fixture data during tests, as shown in the README, allowing isolated testing without a database and easy teardown.

Question 6

What are the performance limits or best practices for large datasets?

Accepted Answer

Set max_records_scan to limit linear searches, use indices on frequently queried attributes, and keep datasets small to avoid O(n) performance degradation.

frozen_record

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