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class ActiveSupport::Callbacks::CallbackSequence

Parent:: Object

Execute before and after filters in a sequence instead of chaining them with nested lambda calls, see: github.com/rails/rails/issues/18011

Public Class Methods

new(&call) Show source

# File activesupport/lib/active_support/callbacks.rb, line 429
def initialize(&call)
  @call = call
  @before = []
  @after = []
end

Public Instance Methods

after(&after) Show source

# File activesupport/lib/active_support/callbacks.rb, line 440
def after(&after)
  @after.push(after)
  self
end

around(&around) Show source

# File activesupport/lib/active_support/callbacks.rb, line 445
def around(&around)
  CallbackSequence.new do |arg|
    around.call(arg) {
      self.call(arg)
    }
  end
end

before(&before) Show source

# File activesupport/lib/active_support/callbacks.rb, line 435
def before(&before)
  @before.unshift(before)
  self
end

call(arg) Show source

# File activesupport/lib/active_support/callbacks.rb, line 453
def call(arg)
  @before.each { |b| b.call(arg) }
  value = @call.call(arg)
  @after.each { |a| a.call(arg) }
  value
end