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Class: ActiveRecord::Associations::Builder::HasOne

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
Instance Chain:
Inherits: ActiveRecord::Associations::Builder::SingularAssociation
Defined in: activerecord/lib/active_record/associations/builder/has_one.rb

Constant Summary

Association - Inherited

VALID_OPTIONS

Class Attribute Summary

Association - Inherited

Class Method Summary

Class Method Details

.add_destroy_callbacks(model, reflection) (private)

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# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 26

def self.add_destroy_callbacks(model, reflection)
  super unless reflection.options[:through]
end

.add_touch_callbacks(model, reflection) (private)

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# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 46

def self.add_touch_callbacks(model, reflection)
  name  = reflection.name
  touch = reflection.options[:touch]

  callback = -> (record) { HasOne.touch_record(record, name, touch) }
  model.after_create callback, if: :saved_changes?
  model.after_create_commit { association(name).reset_negative_cache }
  model.after_update callback, if: :saved_changes?
  model.after_destroy callback
  model.after_touch callback
end

.define_callbacks(model, reflection) (private)

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# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 21

def self.define_callbacks(model, reflection)
  super
  add_touch_callbacks(model, reflection) if reflection.options[:touch]
end

.define_validations(model, reflection) (private)

[ GitHub ]

  
# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 30

def self.define_validations(model, reflection)
  super
  if reflection.options[:required]
    model.validates_presence_of reflection.name, message: :required
  end
end

.macro (private)

[ GitHub ]

  
# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 5

def self.macro
  :has_one
end

.touch_record(record, name, touch)

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# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 37

def self.touch_record(record, name, touch)
  instance = record.send(name)

  if instance&.persisted?
    touch != true ?
      instance.touch(touch) : instance.touch
  end
end

.valid_dependent_options (private)

[ GitHub ]

  
# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 17

def self.valid_dependent_options
  [:destroy, :destroy_async, :delete, :nullify, :restrict_with_error, :restrict_with_exception]
end

.valid_options(options) (private)

[ GitHub ]

  
# File 'activerecord/lib/active_record/associations/builder/has_one.rb', line 9

def self.valid_options(options)
  valid = super + [:as, :through]
  valid += [:foreign_type] if options[:as]
  valid += [:ensuring_owner_was] if options[:dependent] == :destroy_async
  valid += [:source, :source_type, :disable_joins] if options[:through]
  valid
end