https://sskelkar.github.io/tags/ruby/ Recent content in Ruby on Sojjwal Kelkar Hugo en sojjwalkelkar@gmail.com (Sojjwal Kelkar) sojjwalkelkar@gmail.com (Sojjwal Kelkar) Sat, 13 Feb 2021 00:00:00 +0100 https://sskelkar.github.io/post/squashing-ruby-on-rails-database-migrations/ Sat, 13 Feb 2021 00:00:00 +0100sojjwalkelkar@gmail.com (Sojjwal Kelkar) https://sskelkar.github.io/post/squashing-ruby-on-rails-database-migrations/ <h2 id="why">Why?</h2> <p>There are several reasons why you&rsquo;d want to squash the database migrations in your Ruby on Rails application:</p> <ol> <li> <p>In a long running project you may end up with hundreds of files in your <code>db/migrate</code> folder over time. Carrying these legacy migrations incurs maintenance overhead. For example, when upgrading the Rails version, you may need to modify those old migrations for syntax changes.</p> </li> <li> <p>If your build process involves recreating the database to run the tests, it would need to run all of these old migrations. Running a lot of migrations would slow down the build time.</p>