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Class: ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Uuid

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/connection_adapters/postgresql/oid/uuid.rb

Constant Summary

  • ACCEPTABLE_UUID =

    Expand fixed repeats to avoid Onigmo's repetition bookkeeping.

    # File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 9 
    %r{
  \A(\{)?
  [a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  -?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  -?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  -?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  -?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  -?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  -?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]
  (-?[a-fA-F0-9][a-fA-F0-9][a-fA-F0-9][a-fA-F0-9])
  (?(1)\}|)\z
}x
  • CANONICAL_UUID =
    # File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 21 
    %r{
  \A
  [0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]
  -[0-9a-f][0-9a-f][0-9a-f][0-9a-f]
  -[0-9a-f][0-9a-f][0-9a-f][0-9a-f]
  -[0-9a-f][0-9a-f][0-9a-f][0-9a-f]
  -[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]
  \z
}x

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, #as_schema_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, #init_from_schema_json,
#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

This class inherits a constructor from ActiveModel::Type::Value

Instance Method Details

#cast_value(value) (private)

[ GitHub ] 

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 48



def cast_value(value)
  value = value.to_s
  return value if value.match?(CANONICAL_UUID)

  format_uuid(value) if value.match?(ACCEPTABLE_UUID)
end


  








  

    #changed?(old_value, new_value, _new_value_before_type_cast)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 37



def changed?(old_value, new_value, _new_value_before_type_cast)
  old_value.class != new_value.class ||
    new_value != old_value
end


  








  

    #changed_in_place?(raw_old_value, new_value)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 42



def changed_in_place?(raw_old_value, new_value)
  raw_old_value.class != new_value.class ||
    new_value != raw_old_value
end


  








  

    #format_uuid(uuid)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 55



def format_uuid(uuid)
  uuid = uuid.delete("{}-").downcase
  "#{uuid[..7]}-#{uuid[8..11]}-#{uuid[12..15]}-#{uuid[16..19]}-#{uuid[20..]}"
end


  








  

    #serialize(value)  
  



  

    
Alias for ActiveModel::Type::Value#deserialize.

  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 31



alias :serialize :deserialize


  








  

    #type  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb', line 33



def type
  :uuid
end