🚀 Ruby on Rails Controller Mastery
🚀 Ruby on Rails Controller Mastery Write Clean, Scalable & Production-Ready Controllers Like a Pro 💎 Controllers are the brain 🧠 of a Rails application. Poorly written controllers lead to fat controllers , bugs, and unmaintainable code. Well-designed controllers give you clarity, performance, and scalability . Let’s master Rails Controllers with principles, tricks, hacks, best practices, and mistakes to avoid — all with real examples 👇 🎯 What Is a Rails Controller (Quick Recap) A controller: Receives HTTP requests 🌐 Talks to models 📦 Decides what response to send (HTML/JSON/etc.) 📤 👉 Golden Rule : Controllers should orchestrate — not compute. 🧠 Core Principles of Controller Mastery 1️⃣ Skinny Controller, Fat Model (or Service) 🏋️♂️ Controllers should be thin. Business logic belongs elsewhere. ❌ Bad def create user = User.new(user_params) user.token = SecureRandom.hex user.save ! end ✅ Good def create UserSignupService.new(user_params). call ...