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Class: ActiveModel::AttributeSet

Do not use. This class is for internal use only.
Relationships & Source Files
Namespace Children
Modules:
YAMLEncoder
Classes:
Builder
Extension / Inclusion / Inheritance Descendants
Subclasses:
LazyAttributeSet
Inherits: Object
Defined in: activemodel/lib/active_model/attribute_set.rb,
activemodel/lib/active_model/attribute_set/builder.rb,
activemodel/lib/active_model/attribute_set/yaml_encoder.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(attributes) ⇒ AttributeSet

[ GitHub ] 

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 81



def initialize(attributes)
  @attributes = attributes
end


  







Instance Attribute Details



  

    #attributes   (readonly, protected)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 200



attr_reader :attributes


  








  

    #each_value   (readonly)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 79



delegate :each_value, :fetch, :except, to: :attributes


  








  

    #except   (readonly)
  

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# File 'activemodel/lib/active_model/attribute_set.rb', line 79



delegate :each_value, :fetch, :except, to: :attributes


  








  

    #fetch   (readonly)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 79



delegate :each_value, :fetch, :except, to: :attributes


  








  

    #read_only   (readonly)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 85



def read_only
  attributes.values.each(&:freeze)
  attributes.freeze
  ReadOnlyAttributeSet.new(attributes)
end


  








  

    #read_only?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 195



def read_only?
  false
end


  







Instance Method Details



  

    #==(other)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 191



def ==(other)
  other.class == self.class && attributes == other.attributes
end


  








  

    #[](name)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 91



def [](name)
  @attributes[name] || default_attribute(name)
end


  








  

    #[]=(name, value)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 95



def []=(name, value)
  @attributes[name] = value
end


  








  

    #accessed  
  

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# File 'activemodel/lib/active_model/attribute_set.rb', line 174



def accessed
  attributes.each_key.select { |name| self[name].has_been_read? }
end


  








  

    #cast_types  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 99



def cast_types
  attributes.transform_values(&:type)
end


  








  

    #deep_dup  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 154



def deep_dup
  AttributeSet.new(attributes.transform_values(&:dup_or_share))
end


  








  

    #default_attribute(name)   (private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 203



def default_attribute(name)
  Attribute.null(name)
end


  








  

    #fetch_value(name, &block)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 125



def fetch_value(name, &block)
  self[name].value(&block)
end


  








  

    #fetch_value!(name)  
  



  

    
Like #fetch_value, but raises MissingAttributeError if the attribute is
uninitialized.

  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 131



def fetch_value!(name)
  self[name].value!
end


  








  

    #freeze  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 149



def freeze
  attributes.freeze
  super
end


  








  

    #include?(name)  
  



  

    
Alias for #key?.

  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 119



alias :include? :key?


  








  

    #initialize_clone  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 163



def initialize_clone(...)
  @attributes = @attributes.clone
  super
end


  








  

    #initialize_dup(_)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 158



def initialize_dup(_)
  @attributes = @attributes.dup
  super
end


  








  

    #key?(name)  ⇒ Boolean 
    Also known as: #include?
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 116



def key?(name)
  attributes.key?(name) && self[name].initialized?
end


  








  

    #keys  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 121



def keys
  attributes.each_key.select { |name| self[name].initialized? }
end


  








  

    #map(&block)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 178



def map(&block)
  new_attributes = attributes.transform_values(&block)
  AttributeSet.new(new_attributes)
end


  








  

    #reset(key)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 168



def reset(key)
  if key?(key)
    write_from_database(key, nil)
  end
end


  








  

    #reverse_merge!(target_attributes)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 187



def reverse_merge!(target_attributes)
  attributes.reverse_merge!(target_attributes.attributes) && self
end


  








  

    #to_h  
  



  

    
Alias for #to_hash.

  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 114



alias :to_h :to_hash


  








  

    #to_hash  
    Also known as: #to_h
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 111



def to_hash
  keys.index_with { |name| self[name].value }
end


  








  

    #values  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 183



def values
  attributes.values
end


  








  

    #values_before_type_cast  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 103



def values_before_type_cast
  attributes.transform_values(&:value_before_type_cast)
end


  








  

    #values_for_database  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 107



def values_for_database
  attributes.transform_values(&:value_for_database)
end


  








  

    #write_cast_value(name, value)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 145



def write_cast_value(name, value)
  @attributes[name] = self[name].with_cast_value(value)
end


  








  

    #write_from_database(name, value)  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 135



def write_from_database(name, value)
  @attributes[name] = self[name].with_value_from_database(value)
end


  








  

    #write_from_user(name, value)  
  



  

    
  





  
Raises:


    
  
  • 
    (FrozenError)
  
    • 





  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set.rb', line 139



def write_from_user(name, value)
  raise FrozenError, "can't modify frozen attributes" if frozen?
  @attributes[name] = self[name].with_value_from_user(value)
  value
end