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Class: Rails::Initializable::Collection

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, TSort, ::Enumerable, ::ActiveSupport::EnumerableCoreExt::Constants
Inherits: Object
Defined in: railties/lib/rails/initializable.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

#compact_blank

Returns a new ::Array without the blank items.
#exclude?

The negative of the Enumerable#include?.
#excluding

Returns a copy of the enumerable excluding the specified elements.
#in_order_of

Returns a new ::Array where the order has been set to that provided in the series, based on the key of the objects in the original enumerable.
#including

Returns a new array that includes the passed elements.
#index_by

Convert an enumerable to a hash, using the block result as the key and the element as the value.
#index_with

Convert an enumerable to a hash, using the element as the key and the block result as the value.
#maximum

Calculates the maximum from the extracted elements.
#minimum

Calculates the minimum from the extracted elements.
#pick

Extract the given key from the first element in the enumerable.
#pluck

Extract the given key from each element in the enumerable.
#sole

Returns the sole item in the enumerable.
#without

Alias for Enumerable#excluding.

Constructor Details

.new(initializers = nil) ⇒ Collection

[ GitHub ] 

  


# File 'railties/lib/rails/initializable.rb', line 41



def initialize(initializers = nil)
  @order = Hash.new { |hash, key| hash[key] = Set.new }
  @resolve = Hash.new { |hash, key| hash[key] = Set.new }
  @collection = []
  concat(initializers) if initializers
end


  







Instance Method Details



  

    #+(other)  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 67



def +(other)
  dup.concat(other.to_a)
end


  








  

    #<<(initializer)  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 71



def <<(initializer)
  @collection << initializer
  @order[initializer.before] << initializer.name if initializer.before
  @order[initializer.name] << initializer.after if initializer.after
  @resolve[initializer.name] << initializer
end


  








  

    #concat(initializers)  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 78



def concat(initializers)
  initializers.each(&method(:<<))
  self
end


  








  

    #each(&block)  
    Also known as: #tsort_each_node
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 56



def each(&block)
  @collection.each(&block)
end


  








  

    #has?(name)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 83



def has?(name)
  @resolve.key?(name)
end


  








  

    #last  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 52



def last
  @collection.last
end


  








  

    #to_a  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 48



def to_a
  @collection
end


  








  

    #tsort_each_child(initializer, &block)  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 61



def tsort_each_child(initializer, &block)
  @order[initializer.name].each do |name|
    @resolve[name].each(&block)
  end
end


  








  

    #tsort_each_node(&block)  
  



  

    

Alias for #each.


  



  [ GitHub ]


  

  


# File 'railties/lib/rails/initializable.rb', line 60



alias :tsort_each_node :each