Class: Replicate::AR::Habtm

Inherits:
Object
  • Object
show all
Defined in:
lib/replicate/active_record.rb

Overview

Special object used to dump the list of associated ids for a has_and_belongs_to_many association. The object includes attributes for locating the source object and writing the list of ids to the appropriate association method.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, reflection) ⇒ Habtm

Returns a new instance of Habtm.



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# File 'lib/replicate/active_record.rb', line 325

def initialize(object, reflection)
  @object = object
  @reflection = reflection
end

Class Method Details

.load_replicant(type, id, attrs) ⇒ Object 



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# File 'lib/replicate/active_record.rb', line 350

def self.load_replicant(type, id, attrs)
  object = attrs['class'].constantize.find(attrs['id'])
  ids    = attrs['collection']
  object.__send__("#{attrs['ref_name'].to_s.singularize}_ids=", ids)
  [id, new(object, nil)]
end

Instance Method Details

#attributes ⇒ Object 



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# File 'lib/replicate/active_record.rb', line 333

def attributes
  ids = @object.__send__("#{@reflection.name.to_s.singularize}_ids")
  {
    'id'         => [:id, @object.class.to_s, @object.id],
    'class'      => @object.class.to_s,
    'ref_class'  => @reflection.klass.to_s,
    'ref_name'   => @reflection.name.to_s,
    'collection' => [:id, @reflection.klass.to_s, ids]
  }
end

#dump_replicant(dumper, opts = {}) ⇒ Object 



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# File 'lib/replicate/active_record.rb', line 344

def dump_replicant(dumper, opts={})
  type = self.class.name
  id   = "#{@object.class.to_s}:#{@reflection.name}:#{@object.id}"
  dumper.write type, id, attributes, self
end

#id ⇒ Object 



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# File 'lib/replicate/active_record.rb', line 330

def id
end