ROR | WebOnRails

ActiveRecord after_commit hook

Published on August 28, 2012

Most developers use ActiveRecord callbacks after_create/after_update/after_destroy to generate background job, expire cache, etc., but they don’t realize these callbacks are still wrapped in database transaction, they probably got unexpected results like the app queued a job but the record is not created/updated(transaction rolled back). For such situations after_commit callback should be used. after_commit is introduced … Continue reading ActiveRecord after_commit hook

Foreigner: Adds foreign key helpers to migrations and correctly dumps foreign keys to schema

Published on August 28, 2012

RoR doesn't support foreign keys in DB migrations.This gem(http://t.co/hjBJ4lA4) adds foreign keys support in DB migrations. #ROR #GEM — Akhil Bansal (@bansalakhil) August 21, 2012

Set cache-control & expires headers to the content served by S3 using attachment_fu or paperclip

Published on June 6, 2012

Using attachment_fu with S3 to save and serve data? Set cache-control headers by applying this patch to improve site performance and save some money: http://www.gozuus.com/blog/2009/03/caching-images-using-attachment_fu-and-amazon-s3/ If using PaperClip then add headers by adding: Find more info about paperclip s3 options here: http://rubydoc.info/gems/paperclip/Paperclip/Storage/S3