Class: ActiveData::Model::Associations::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/active_data/model/associations/base.rb

Direct Known Subclasses

EmbedsMany, EmbedsOne, ReferencesMany, ReferencesOne

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(owner, reflection) ⇒ Base

Returns a new instance of Base.



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# File 'lib/active_data/model/associations/base.rb', line 8

def initialize owner, reflection
  @owner, @reflection = owner, reflection
  @evar_loaded = owner.persisted?
  reset
end

Instance Attribute Details

#owner ⇒ Object

Returns the value of attribute owner.



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# File 'lib/active_data/model/associations/base.rb', line 5

def owner
  @owner
end

#reflection ⇒ Object

Returns the value of attribute reflection.



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# File 'lib/active_data/model/associations/base.rb', line 5

def reflection
  @reflection
end

Instance Method Details

#apply_changes! ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 42

def apply_changes!
  apply_changes or raise ActiveData::AssociationChangesNotApplied
end

#evar_loaded? ⇒ Boolean

Returns:



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# File 'lib/active_data/model/associations/base.rb', line 19

def evar_loaded?
  !!@evar_loaded
end

#inspect ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 55

def inspect
  "#<#{reflection.macro.to_s.camelize} #{target.inspect.truncate(50, omission: collection? ? '...]' : '...')}>"
end

#loaded! ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 27

def loaded!
  @evar_loaded = true
  @loaded = true
end

#loaded? ⇒ Boolean

Returns:



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# File 'lib/active_data/model/associations/base.rb', line 23

def loaded?
  !!@loaded
end

#reload ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 37

def reload
  reset
  target
end

#reset ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 14

def reset
  @loaded = false
  @target = nil
end

#target ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 32

def target
  return @target if loaded?
  self.target = load_target
end

#transaction(&block) ⇒ Object 



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# File 'lib/active_data/model/associations/base.rb', line 46

def transaction &block
  data = Marshal.load(Marshal.dump(read_source))
  block.call
rescue StandardError => e
  write_source data
  reload
  raise e
end