You can use this gem to copy records and their specified associations from production (or other) environments to your local environment.

A mini-framework for intelligently publishing complex model changes to an external API.

ActiveRecord adapter for SyncMachine.

Apartment allows Rack applications to deal with database multitenancy through ActiveRecord

Systematize will order your data and struture migrations so you don't have to think which one to run first.

Simple filters for RubyOnRails

Rails + Postgres Partitions

Take snapshots of database tables and compute the differences between two snapshots.

Adds support for displaying your ActiveRecord tables, named scopes, collections, or plain arrays in a table view when working in rails console, shell, or email template. Enumerable#to_table_display returns the printable strings; Object#pt calls #to_table_display on its first argument and puts out the result. Columns you haven't loaded (eg. from using :select) are omitted, and derived/calculated columns (eg. again, from using :select) are added. Both #to_table_display and Object#pt methods take :only, :except, and :methods which work like the #to_xml method to change what attributes/methods are output. The normal output uses #inspect on the data values to make them printable, so you can see what type the values had. When that's inconvenient or you'd prefer direct display, you can pass the option :inspect => false to disable inspection.

TableFormat shows text table like emacs org-table for easy reading.

A serialisable and validatable table-less model with support for associations, useful to store settings, options, etc in a serialized form in a parent object

pretty syntax insteed of table_name_prefix

TableSortable adds multi-column, server-side filtering, sorting and pagination to the tableSorter jQuery plugin, so you don't have to worry about interpreting the query parameters, combining multiple queries, columns to sort by, or figuring out how to send the correct page back to the client. It is a Rails backend complementation to the frontend tableSorter.js.

make dealing with real life tables simpler

Validate an entire [ActiveRecord] table, checking for things like blank rows or total number of rows

This Rails gem gives you the ability to call to_csv to a collection of homogenous activerecords and/or hashes

An opinionated yet simple table generator for Rails

Create records in a DB managed by ActiveRecord as fast as possible.

A command line rolodex.

The default_value_for plugin allows one to define default values for ActiveRecord models in a declarative manner