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Preheat or generate fragment cache on deploy – Rails 5

If you have a page that takes a lot of time to generate the cache. The first user who stumbles upon it is in pain. Sometimes it times out before it gets generated completed. So, I created a method in one of the helper class def self.recreate_cache the_controller = # Set any instance variables required by your partial in the controller, # they [...]

[Fix] PG::CharacterNotInRepertoire: ERROR: invalid byte sequence for encoding “UTF8”

I was trying to store Random IVs generated for AES encryption but couldn’t store them into a PostgreSQL database. The Random IVs generated were binary data. So, you have to escape them. While storing, do this PGconn.escape_bytea(data) While retrieving, do this PGconn.unescape_bytea(data)  

How to install Ruby 1.9.2 on Ubuntu using RVM

Here’s a quick snippet to install Ruby on your Ubuntu system. RVM = Awesomeness! login as single user, not root. bash -s stable < <(curl -s ) echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.bashrc source ~/.bashrc Check out the [...]
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