What happens when your code breaks in production? If you have Honeybadger you'll be alerted with crucial details like the error location, the data being processed and the affected users. So you can deploy a fix quickly and get back to coding. Learn more.

RubyFlow The Ruby and Rails community linklog

×

The Ruby and Rails community linklog

Made a library? Written a blog post? Found a useful tutorial? Share it with the Ruby community here or just enjoy what everyone else has found!

Optimizing Active Record Associated Record Count Queries With the belongs_to counter_cache Option

It is often useful to know how many records are associated with a model identified as being the parent in a belongs_to relationship. Active Record’s default behavior is to determine this number using a COUNT(*) query. Fortunately, you can avoid this additional costly query by caching the associated record account with a few simple modifications to your Rails application. Read the tutorial.

Post a comment

You can use basic HTML markup (e.g. <a>) or Markdown.

As you are not logged in, you will be
directed via GitHub to signup or sign in