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Class: ActionDispatch::MiddlewareStack

Relationships & Source Files
Namespace Children
Classes:
Middleware
Extension / Inclusion / Inheritance Descendants
Subclasses:
ActionController::MiddlewareStack
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, ::Enumerable
Inherits: Object
Defined in: actionpack/lib/action_dispatch/middleware/stack.rb

Class Method Summary

Instance Attribute Summary

::Enumerable - Included

#many?

Returns true if the enumerable has more than 1 element.

Instance Method Summary

::Enumerable - Included

#exclude?

The negative of the Enumerable#include?.
#index_by

Convert an enumerable to a hash.
#sum

Calculates a sum from the elements.

Constructor Details

.new(*args) {|_self| ... } ⇒ MiddlewareStack

Yields:

  • (_self)

Yield Parameters:

  • _self (MiddlewareStack) —

    the object that the method was called on

[ GitHub ] 

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 57



def initialize(*args)
  @middlewares = []
  yield(self) if block_given?
end


  







Instance Attribute Details



  

    #middlewares   (rw)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 55



attr_accessor :middlewares


  







Instance Method Details



  

    #[](i)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 74



def [](i)
  middlewares[i]
end


  








  

    #build(app = nil, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 115



def build(app = nil, &block)
  app ||= block
  raise "MiddlewareStack#build requires an app" unless app
  middlewares.freeze.reverse.inject(app) { |a, e| e.build(a) }
end


  








  

    #delete(target)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 106



def delete(target)
  middlewares.delete target
end


  








  

    #each  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 62



def each
  @middlewares.each { |x| yield x }
end


  








  

    #initialize_copy(other)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 83



def initialize_copy(other)
  self.middlewares = other.middlewares.dup
end


  








  

    #insert(index, *args, &block)  
    Also known as: #insert_before
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 87



def insert(index, *args, &block)
  index = assert_index(index, :before)
  middleware = self.class::Middleware.new(*args, &block)
  middlewares.insert(index, middleware)
end


  








  

    #insert_after(index, *args, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 95



def insert_after(index, *args, &block)
  index = assert_index(index, :after)
  insert(index + 1, *args, &block)
end


  








  

    #insert_before(index, *args, &block)  
  



  

    

Alias for #insert.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 93



alias_method :insert_before, :insert


  








  

    #last  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 70



def last
  middlewares.last
end


  








  

    #size  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 66



def size
  middlewares.size
end


  








  

    #swap(target, *args, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 100



def swap(target, *args, &block)
  index = assert_index(target, :before)
  insert(index, *args, &block)
  middlewares.delete_at(index + 1)
end


  








  

    #unshift(*args, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 78



def unshift(*args, &block)
  middleware = self.class::Middleware.new(*args, &block)
  middlewares.unshift(middleware)
end


  








  

    #use(*args, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/stack.rb', line 110



def use(*args, &block)
  middleware = self.class::Middleware.new(*args, &block)
  middlewares.push(middleware)
end