Surekha GagaliyaObservers 🧐 Observer lives longer.It can be attached & detached at any time.It is used when method is not directly associated to life cycle of Active Record objects.If you want to create observer with command-line you need to add gem first because without observer gem you couldn’t run any observer generator command so first add … Read more Ruby on Rails : Callbacks V/S Observers
In Rails, you can query the database through ActiveRecord methods to access table data. And this one ActiveRecord methods is Where, today we are learn multiple ways to use Where method in rails. If you want to fetch multiple data into one single query then use where method. ActiveRecord gives you a number of ways … Read more How to Use Where Method In Rails
One of the fundamental principles Rails developers follow is Don’t Repeat Yourself (DRY).🔁 We can use concerns, to avoid repeating the same routes defined. To eliminate code duplication rails introduced the routing method :concern. The :concerns option can accept one or more routing concerns.