Recent posts

• How to downgrade the postgres addon version on Heroku.

  Sep 21, 2024

  We recently had to downgrade the version of the postgres addon on Heroku.

  Our production was running on version 14 and our staging server was running on 16.

  We wanted to downgrade the staging server to version 14 to ensure that the versions are consistent across environments.

  This is how we did it.

  read more

  heroku restore downgrade postgres

• How to start rails console on fly.io

  Jan 15, 2024

  Issue

  fly ssh console
  Connecting to fdaa:0:xxxx:xxx:xxx:xxxx:xxxx:2... complete
  root@4xxxxxxxxxx8:/app# rails c
  -bash: rails: command not found
  

  read more

  rails fly

• Error running '__rvm_make -j12'

  Jan 4, 2024

  Issue

  Error running '__rvm_make -j12',
  please read /Users/deepak/.rvm/log/1704350883_ruby-3.3.0/make.log
  

  read more

  rvm ruby

• What's new in Rails 7.1

  Sep 13, 2023

  Update:

  Rails 7.1 Beta 1 is released on September 13, 2023.

  Rails 7.1 is released on October 5, 2023.

  Let’s see what is new in rails 7.1

  Dockerfile

  Rails will now auto generate docker related files in the application.

  Dockerfile
  .dockerignore
  bin/docker-entrypoint
  

  Build and run your application using docker

  docker build -t app .
  docker volume create app-storage
  docker run --rm -it -v app-storage:/rails/storage -p 3000:3000 --env RAILS_MASTER_KEY=<your-config-master-key> app
  

  read more

  rails rails7-1

• Error installing puma - Failed to build gem native extension

  Aug 24, 2023

  Issue

  Building native extensions. This could take a while...
  ERROR: Error installing puma:
  ERROR: Failed to build gem native extension.
  

  read more

  puma rubygems

• How to get rid of bot accounts from Twitter timeline.

  Jul 14, 2023

  Tired of the bot accounts showing up in the twitter replies section?

  There’s no direct way to block all the bot accounts as of 14th July 2023.

  But we will show you a way to get rid of the bot accounts to some extent.

  Let’s see how to do it:

  read more

  twitter bots

• undefined method `exists?' for File:Class (NoMethodError)

  Jun 16, 2023

  Recently we upgraded ruby to 3.2. We started getting the following error:

  /Users/deepak/.rvm/gems/ruby-3.2.2@my-project/gems/pundit-2.3.0/lib/generators/rspec/templates/policy_spec.rb:1:in `template':
  undefined method `exists?' for File:Class (NoMethodError)
  
  Did you mean?  exist?
  

  This is how we traced it and fixed it:

  read more

  ruby rubygems pundit

• How to clear Twitter interests in bulk.

  May 19, 2023

  Are you getting random tweets on your timeline?

  Or you clicked on a tweet and now you’re getting tweets related to the same topic and can’t get rid of it.

  Let’s see how to get rid of the interests:

  read more

  twitter javascript

• Audio element autoplay issue on redirection with turbolinks.

  May 6, 2022

  Background of the issue

  Recently, we were working on a feature where we wanted to autoplay the audio.

  So like a normal developer we did the following:

  <audio autoplay data-audio-target="audioElement">
    <source src="https://www.xyz/...">
  </audio>
  

  Since this is a rails project and we have turbolinks on, we came across an interesting issue.

  Whenever we were navigating from the page with the audio element to any other page the audio from the previous page used to play.

  We tried to search the same and came across few issue in the turbolinks repository.

  • turbolinks/turbolinks#157
  • turbolinks/turbolinks#177

  We found few solutions but since we were using stimulus js we solved it with the following approach

  read more

  rails stimulusjs turbolinks

• 5 Must have gems in Ruby on Rails development environment.

  Apr 26, 2021

  I have been developing rails applications since 2014. I started my career with rails and since then I have worked on numerous rails projects.

  These are a few gems that I like to add to almost all of my projects (including the personal projects). These gems definitely increase productivity and make the developer’s life easier.

  These are my top 5 gems you should have in your development environment.

  read more

  ruby rubygems

• A step by step guide to upgrade rails 4 application to rails 5

  Jul 4, 2020

  Upgrading an application can be tedious if you don’t have good test coverage.

  This article covers the common issues you might face while upgrading the from rails 4 to 5.

  If you are upgrading to ruby 2.7 export RUBYOPT="-W0" to avoid getting your screen filled up with deprecations warnings

  export RUBYOPT="-W0"
  
  bundle exec rspec
  
  # OR use
  
  RUBYOPT="-W0" bundle exec rspec
  

  read more

  rails rails-upgrade

• Elasticsearch::Model - Partial update with custom callbacks

  Apr 21, 2018

  If you want to partially update the documents on Elasticsearch you can include Elasticsearch::Model::Callbacks module.

  You can also perform partial update with custom callbacks instead of indexing the whole document.

  Elasticsearch Version - 5.3

  Partially update a document

  There is update_document_attributes method in Elasticsearch::Model which is used for partial update but it’s not documented. You can still use the method to perform the partial update.

  read more

  ruby elasticsearch

• Rails and TimeZone issue with query

  Apr 21, 2018

  You must have faced timezone issue if you work with the application in different timezone. ActiveRecord does take care of the timezone while creating, updating or querying the records. The DateTime is converted to UTC before the query is executed.

  You will face issue if you are using raw queries or passing String instead of DateTime.

  read more

  rails

• Elasticsearch::Model - Put Mapping

  Apr 20, 2018

  The PUT mapping API allows you to add fields to an existing index. This method is available with Elasticsearch::Model but it’s not documented.

  Elasticsearch Version - 5.3

  Create a User model

  > rails g model user first_name:string last_name:string email:string phone_number:string
  
  invoke  active_record
    create    db/migrate/20180420162454_create_users.rb
    create    app/models/user.rb
  
  > rake db:migrate
  

  read more

  ruby elasticsearch

• Generating migrations with proper commands

  Dec 4, 2016

  Creating a table

  If the migration name is of the form “CreateXXX” and is followed by a list of column names and types then a migration creating the table XXX with the columns listed will be generated.

  $ rails g migration CreateUsers email:string:index
  

  db/migrate/20161201203703_create_users.rb

  class CreateUsers < ActiveRecord::Migration
    def change
      create_table :users do |t|
        t.string :email
      end
      add_index :users, :email
    end
  end
  

  read more

  ruby rails

• Include scoped associations

  Jun 16, 2016

  Rails provide different ways to load associations from the database to avoid N + 1 query being fired. In this post, I will show you how to include associations with scope applied on them.

  I have two models User and Post with following associations:

  # app/models/user.rb
  class User < ActiveRecord::Base
    has_many :posts, dependent: :destroy
  end
  
  # app/models/post.rb
  class Post < ActiveRecord::Base
    belongs_to :user
    scope :published, -> { where(published: true) }
  end
  

  read more

  ruby rails