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Class: ActiveModel::LazyAttributeSet

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, AttributeSet
Instance Chain:
self, AttributeSet
Inherits: ActiveModel::AttributeSet
Defined in: activemodel/lib/active_model/attribute_set/builder.rb

Class Method Summary

AttributeSet - Inherited

.new

Instance Attribute Summary

AttributeSet - Inherited

#each_value, #except, #fetch, #attributes

Instance Method Summary

AttributeSet - Inherited

#==, #[], #[]=, #accessed, #cast_types, #deep_dup, #fetch_value, #freeze,
#include?

Alias for AttributeSet#key?.
#initialize_clone, #initialize_dup, #key?, #keys, #map, #reset, #reverse_merge!,
#to_h

Alias for AttributeSet#to_hash.
#to_hash, #values_before_type_cast, #values_for_database, #write_cast_value, #write_from_database, #write_from_user, #default_attribute

Constructor Details

.new(values, types, additional_types, default_attributes, attributes = {}) ⇒ LazyAttributeSet

[ GitHub ] 

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 22



def initialize(values, types, additional_types, default_attributes, attributes = {})
  super(attributes)
  @values = values
  @types = types
  @additional_types = additional_types
  @default_attributes = default_attributes
  @casted_values = {}
  @materialized = false
end


  







Instance Attribute Details



  

    #additional_types   (readonly, private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 71



attr_reader :values, :types, :additional_types, :default_attributes


  








  

    #default_attributes   (readonly, private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 71



attr_reader :values, :types, :additional_types, :default_attributes


  








  

    #types   (readonly, private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 71



attr_reader :values, :types, :additional_types, :default_attributes


  








  

    #values   (readonly, private)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 71



attr_reader :values, :types, :additional_types, :default_attributes


  







Instance Method Details



  

    #attributes   (protected)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 61



def attributes
  unless @materialized
    values.each_key { |key| self[key] }
    types.each_key { |key| self[key] }
    @materialized = true
  end
  @attributes
end


  








  

    #default_attribute(name, value_present = true, value = values.fetch(name) { value_present = false })   (private)
  

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# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 73



def default_attribute(
  name,
  value_present = true,
  value = values.fetch(name) { value_present = false }
)
  type = additional_types.fetch(name, types[name])

  if value_present
    @attributes[name] = Attribute.from_database(name, value, type, @casted_values[name])
  elsif types.key?(name)
    if attr = default_attributes[name]
      @attributes[name] = attr.dup
    else
      @attributes[name] = Attribute.uninitialized(name, type)
    end
  else
    Attribute.null(name)
  end
end


  








  

    #fetch_value(name, &block)  
  

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# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 41



def fetch_value(name, &block)
  if attr = @attributes[name]
    return attr.value(&block)
  end

  @casted_values.fetch(name) do
    value_present = true
    value = values.fetch(name) { value_present = false }

    if value_present
      type = additional_types.fetch(name, types[name])
      @casted_values[name] = type.deserialize(value)
    else
      attr = default_attribute(name, value_present, value)
      attr.value(&block)
    end
  end
end


  








  

    #key?(name)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 32



def key?(name)
  (values.key?(name) || types.key?(name) || @attributes.key?(name)) && self[name].initialized?
end


  








  

    #keys  
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/attribute_set/builder.rb', line 36



def keys
  keys = values.keys | types.keys | @attributes.keys
  keys.keep_if { |name| self[name].initialized? }
end