using_blocks_in_callbacks

🛠️ Using Blocks in Model Callbacks

You can pass a block directly to a callback for quick, inline logic. This is handy for very simple operations without extracting a private method.

class Invoice < ApplicationRecord
  before_create do
    self.token = SecureRandom.hex(10)
  end
end

In this example, an inline block assigns a random token to each new invoice right before creation.