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rails--rails/actionpack/lib/action_dispatch/middleware/callbacks.rb
2017-07-29 14:02:40 +03:00

36 lines
698 B
Ruby

# frozen_string_literal: true
module ActionDispatch
# Provides callbacks to be executed before and after dispatching the request.
class Callbacks
include ActiveSupport::Callbacks
define_callbacks :call
class << self
def before(*args, &block)
set_callback(:call, :before, *args, &block)
end
def after(*args, &block)
set_callback(:call, :after, *args, &block)
end
end
def initialize(app)
@app = app
end
def call(env)
error = nil
result = run_callbacks :call do
begin
@app.call(env)
rescue => error
end
end
raise error if error
result
end
end
end