Class: Granite::Form::Model::Associations::Base

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

Direct Known Subclasses

EmbedsAny, ReferencesAny

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/granite/form/model/associations/base.rb', line 9

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

Instance Attribute Details

#owner ⇒ Object

Returns the value of attribute owner.



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# File 'lib/granite/form/model/associations/base.rb', line 6

def owner
  @owner
end

#reflection ⇒ Object

Returns the value of attribute reflection.



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# File 'lib/granite/form/model/associations/base.rb', line 6

def reflection
  @reflection
end

Instance Method Details

#callback(name, object) ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 44

def callback(name, object)
  evaluator = reflection.options[name]
  return true unless evaluator

  if evaluator.is_a?(Proc)
    if evaluator.arity == 1
      owner.instance_exec(object, &evaluator)
    else
      evaluator.call(owner, object)
    end
  else
    owner.send(evaluator, object)
  end
end

#evar_loaded? ⇒ Boolean

Returns:



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# File 'lib/granite/form/model/associations/base.rb', line 21

def evar_loaded?
  !!@evar_loaded
end

#inspect ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 68

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

#loaded! ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 29

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

#loaded? ⇒ Boolean

Returns:



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# File 'lib/granite/form/model/associations/base.rb', line 25

def loaded?
  !!@loaded
end

#reload ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 39

def reload
  reset
  target
end

#reset ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 16

def reset
  @loaded = false
  @target = nil
end

#target ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 34

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

#transaction ⇒ Object 



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# File 'lib/granite/form/model/associations/base.rb', line 59

def transaction
  data = read_source.deep_dup
  yield
rescue StandardError => e
  write_source data
  reload
  raise e
end