Opt-in validations for your ActiveRecord models based on your MySQL database constraints, including text field size, UTF-8 encoding issues, and NOT NULL constraints.

Provides transparent encryption for ActiveRecord. You can protect your data with any encryption algorithm you want.

ActiveRecord Firebird Adapter for Rails 3 and 4 with support for migrations.

Save unnecessary round trips to the database

An ActiveRecord plugin providing a higher-level abstraction for SQL 'LIKE' queries

Gives ActiveRecord support for PostgreSQL's native inherited tables

Add unsigned option to integer type for ActiveRecord's MySQL2 adapter

ActiveRecord OpenTracing intrumenter

This gem adds comments to the SQL to indicate where the SQL parts are constructed.

Gives a hook on MySQL warnings that allow you to either raise or log them.

Support for Postgres Notify/Listen

Amazon Redshift adapter for ActiveRecord 7+

Just wrap your existing code in `@relation.summarize do |relation| ... end` and run your queries against relation instead of @relation.

An Active Record extension for Multitenancy with PostgreSQL Row Level Security

Automatic database view creation for ActiveRecord

acts_as_account implements double entry accounting for Rails models. Your models get accounts and you can do consistent transactions between them. Since the documentation is sparse, see the transfer.feature for usage examples.

ActiveRecord extension for sorted adjacency lists support

This is a ruby gem that provides drop in replacement for acts_as_tree but makes use of SQL recursive statement. Be sure to have a DBMS that supports recursive queries when using this gem (e.g. PostgreSQL or SQLite).

Sane ActiveRecord tree builder

Provides various extensions to the Rails ActiveRecord adapters.