dynamic_parameterized_scopes

🧩 Dynamic Parameterized Scopes

You can build flexible reusable scopes by accepting dynamic parameters and lambdas. This allows you to compose queries at runtime without repeating logic, ensuring DRY code.

class Order < ApplicationRecord
  scope :by_status, ->(status) { where(status: status) if status.present? }
  scope :placed_between, ->(start_date, end_date) {
    where(created_at: start_date..end_date) if start_date && end_date
  }
end

# Usage:
orders = Order.by_status("completed").placed_between(1.week.ago, Time.current)