Class: ActionDispatch::Callbacks

Inherits:
Object
  • Object
show all
Includes:
ActiveSupport::Callbacks
Defined in:
lib/action_dispatch/middleware/callbacks.rb

Overview

# Action Dispatch Callbacks

Provides callbacks to be executed before and after dispatching the request.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Callbacks

Returns a new instance of Callbacks.



24
25
26
 
# File 'lib/action_dispatch/middleware/callbacks.rb', line 24

def initialize(app)
  @app = app
end

Class Method Details

.after(*args, &block) ⇒ Object 



19
20
21
 
# File 'lib/action_dispatch/middleware/callbacks.rb', line 19

def after(*args, &block)
  set_callback(:call, :after, *args, &block)
end

.before(*args, &block) ⇒ Object 



15
16
17
 
# File 'lib/action_dispatch/middleware/callbacks.rb', line 15

def before(*args, &block)
  set_callback(:call, :before, *args, &block)
end

Instance Method Details

#call(env) ⇒ Object 



28
29
30
31
32
33
34
35
36
 
# File 'lib/action_dispatch/middleware/callbacks.rb', line 28

def call(env)
  error = nil
  result = run_callbacks :call do
    @app.call(env)
  rescue => error
  end
  raise error if error
  result
end