leethal's live-validations at master - GitHub
Reads Active Record's validations and makes them available to live client side javascript
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jnicklas's carrierwave at master - GitHub
File upload solution that supports form roundtrips when a validation fails.
rhulse's rails-css-views at master - GitHub
This gem is designed to provide CSS views to Rails, and a process to concatenate and minify these files to one file for production.
brynary's rack-bug at master - GitHub
Debugging toolbar for Rack applications implemented as middlewa
samdanavia's ambitious_query_indexer at master - GitHub
Ambitious Query Indexer is a Rails plugin to identify database indexes that are missing. Rather than looking at tables and guessing what needs indexing, it will locate and run as many queries as it can find and suggest indexes that could be added ...
sdsykes's read_from_slave at master - GitHub
Read_from_slave for Rails enables database reads from a slave database, while writes continue to go to the master
mynyml's holygrail at master - GitHub
The Holy Grail of testing for front-end development; execute browser-less, console-based, javascript + DOM code right from within your Rails test suite.
eliotsykes's asset_fingerprint at master - GitHub
Asset Fingerprint Plugin for Ruby on Rails - allows you to use md5 or timestamps in query string or in asset filenames as suggested by Google Page Speed
ryanb's trusted-params at master - GitHub
Rails plugin which adds a convenient way to override attr_accessible protection.... You can mark certain attributes as trusted for different roles.
xing's flag_shih_tzu at master - GitHub
A rails plugin to store a collection of boolean attributes in a single ActiveRecord column as a bit field.