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How to fix undefined method address_list in Rails 6.x and 7.x.

Simon ChiuSimon Chiu
Dec 27, 20221 min read

Updating the mail gem breaks Mail#address_list · The problem The other day I came across an issue where I saw this error: #...

How to fix undefined method address_list in Rails 6.x and 7.x.

Fixing PG::UniqueViolation when there isn't a unique violation

Simon ChiuSimon Chiu
May 9, 20202 min read

This article was originally published in 2020 and was imported from my old Substack newsletter. The Problem The other day, I was trying to attach an...

Fixing PG::UniqueViolation when there isn't a unique violation