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Class: ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveModel::Type::Value
Instance Chain:
self, ::ActiveModel::Type::Value, ::ActiveModel::Type::SerializeCastValue
Inherits: ActiveModel::Type::Value
Defined in: activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb

Class Method Summary

::ActiveModel::Type::Value - Inherited

.new

Initializes a type with three basic configuration settings: precision, limit, and scale.

Instance Attribute Summary

::ActiveModel::Type::Value - Inherited

#limit, #precision, #scale,
#binary?

These predicates are not documented, as I need to look further into their use, and see if they can be removed entirely.
#mutable?, #serialized?

Instance Method Summary

::ActiveModel::Type::Value - Inherited

#==, #as_json, #assert_valid_value,
#cast

::ActiveRecord::Type casts a value from user input (e.g. from a setter).
#changed?

Determines whether a value has changed for dirty checking.
#changed_in_place?

Determines whether the mutable value has been modified since it was read.
#deserialize

Converts a value from database input to the appropriate ruby type.
#eql?

Alias for ActiveModel::Type::Value#==.
#hash,
#serializable?

Returns true if this type can convert value to a type that is usable by the database.
#serialize

Casts a value from the ruby type to a type that the database knows how to understand.
#type

Returns the unique type name as a ::Symbol.
#cast_value

Convenience method for types which do not need separate type casting behavior for user and database inputs.
#force_equality?, #map,
#type_cast_for_schema

::ActiveRecord::Type casts a value for schema dumping.
#value_constructed_by_mass_assignment?

::ActiveModel::Type::SerializeCastValue - Included

#initialize, #itself_if_serialize_cast_value_compatible

Constructor Details

.new(subtype) ⇒ TimeZoneConverter

[ GitHub ] 

  


# File 'activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb', line 9



def self.new(subtype)
  self === subtype ? subtype : super
end


  







Instance Method Details



  

    #cast(value)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb', line 17



def cast(value)
  return if value.nil?

  if value.is_a?(Hash)
    set_time_zone_without_conversion(super)
  elsif value.respond_to?(:in_time_zone)
    begin
      super(user_input_in_time_zone(value)) || super
    rescue ArgumentError
      nil
    end
  elsif value.respond_to?(:infinite?) && value.infinite?
    value
  else
    map_avoiding_infinite_recursion(super) { |v| cast(v) }
  end
end


  








  

    #convert_time_to_time_zone(value)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb', line 36



def convert_time_to_time_zone(value)
  return if value.nil?

  if value.acts_like?(:time)
    value.in_time_zone
  elsif value.respond_to?(:infinite?) && value.infinite?
    value
  else
    map_avoiding_infinite_recursion(value) { |v| convert_time_to_time_zone(v) }
  end
end


  








  

    #deserialize(value)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb', line 13



def deserialize(value)
  convert_time_to_time_zone(super)
end


  








  

    #map_avoiding_infinite_recursion(value)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb', line 52



def map_avoiding_infinite_recursion(value)
  map(value) do |v|
    if value.equal?(v)
      nil
    else
      yield(v)
    end
  end
end


  








  

    #set_time_zone_without_conversion(value)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb', line 48



def set_time_zone_without_conversion(value)
  ::Time.zone.local_to_utc(value).try(:in_time_zone) if value
end