RGeo is a geospatial data library for Ruby. RGeo::ActiveRecord is an optional RGeo module providing some spatial extensions to ActiveRecord, as well as common tools used by RGeo-based spatial adapters.

SchemaValidations extends ActiveRecord to automatically create validations by inspecting the database schema. This makes your models more DRY as you no longer need to duplicate NOT NULL, unique, numeric and varchar constraints on the model level.

Mine remote data into your ActiveRecord models. You can also perform associations and convert units.

Log transitions on a state_machines to support auditing and business process analytics.

Translatable columns for Rails 4.2 or better, stored in the model table itself.

Suffering from ActiveRecord instantiation anxiety? Try Valium. It saves your CPU and memory for more important things, retrieving just the values you're interested in seeing.

Any_of allows to compute dynamic OR queries.

Associate a Ruby PORO with an Active Record class and have it quack like one.

This gem logs where ActiveRecord actually loads record

Never worry about weird diffs and merge conflicts again

An Active Record extension for creating associations through lateral joins

Integrate PostgreSQL's enumerated types with the Rails enum feature

Adds support for postgres arrays to ActiveRecord

Redirect ActiveRecord (Rails) reads to replica databases while ensuring all writes go to the primary database.

ActiveRecord sharding extension

*Atomic archiving/unarchiving for ActiveRecord-based apps* We had the problem that acts_as_paranoid and similar plugins/gems always work on a record by record basis and made it very difficult to restore records atomically (or archive them, for that matter). Because the archive and unarchive met...

Client Side Validations for Rails 2.x and 3.x

Adds new features to Arel

Write-through and Read-through Cacheing for ActiveRecord

Deploy features incrementally to your users