123456789_123456789_123456789_123456789_123456789_

Class: ActiveRecord::Locking::LockingType

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/locking/optimistic.rb

Overview

In de/serialize we change nil to 0, so that we can allow passing nil values to lock_version, and not result in ::ActiveRecord::StaleObjectError during update record.

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) ⇒ LockingType

[ GitHub ] 

  


# File 'activerecord/lib/active_record/locking/optimistic.rb', line 207



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


  







Instance Method Details



  

    #deserialize(value)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/locking/optimistic.rb', line 211



def deserialize(value)
  super.to_i
end


  








  

    #encode_with(coder)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/locking/optimistic.rb', line 223



def encode_with(coder)
  coder["subtype"] = __getobj__
end


  








  

    #init_with(coder)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/locking/optimistic.rb', line 219



def init_with(coder)
  __setobj__(coder["subtype"])
end


  








  

    #serialize(value)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/locking/optimistic.rb', line 215



def serialize(value)
  super.to_i
end