self.to_prepare(identifier = nil, &block) — Dispatcher

self.to_prepare(identifier = nil, &block)

Add a preparation callback. Preparation callbacks are run before every request in development mode, and before the first request in production mode.

An optional identifier may be supplied for the callback. If provided, to_prepare may be called again with the same identifier to replace the existing callback. Passing an identifier is a suggested practice if the code adding a preparation block may be reloaded.

Parameters

identifier opt = nil
block block

Source

# File actionpack/lib/action_controller/dispatcher.rb, line 38
      def to_prepare(identifier = nil, &block)
        @prepare_dispatch_callbacks ||= ActiveSupport::Callbacks::CallbackChain.new
        callback = ActiveSupport::Callbacks::Callback.new(:prepare_dispatch, block, :identifier => identifier)
        @prepare_dispatch_callbacks.replace_or_append!(callback)
      end

Defined in actionpack/lib/action_controller/dispatcher.rb line 38 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Dispatcher

Signature

Parameters