paranoid models for rails 4

Pecorino allows you to define throttles and rate meters for your metered resources, all through your standard DB

Generate permalink attributes on ActiveModel/ActiveRecord

Easy denormalization for your ActiveRecord models

Fast Ruby PG csv export. Uses pg function 'copy to csv'. Effective on millions rows.

Takes care of postgres DB consistency for ActiveRecord polymorphic associations via partitioning and inheritance

This gem provides a class with methods which map directly to the SQL stored procedure APIs provided by pglogical. It also provides a way to mix these methods directly into the ActiveRecord connection object.

Provides a database-friendly method for polymorphic relationships

Choose per model and/or controller&action whether a read-only query should be sent to master or a hot standby. Or just use Postamt.on(:slave) { ... }.

Thin ActiveRecord Redshift Adapter extension for existing PostgreSQL adapter.

Preload association or scope counts. This can greatly reduce the number of queries you have to perform and thus yield great performance gains.

Procore Ruby Gem

Runs regular Rails/ActiveRecord migrations via the Percona Toolkit pt-online-schema-change tool.

SQL queries counter for Rails apps

Returns random records for Ruby Models fast and quick

Rails-bigint-pk modifies Rails so that it uses 64-bit primary and foreign keys. It works with MySQL and PostgreSQL and has versions for Rails 3 and 4.

Easily use 64-bit primary keys in Rails

Pattern matching for Rails applications

This is an ActiveRecord integration for the SQL prettifier gem niceql.

ActiveRecord-bound state machine