Module: MongoMapper::Plugins::IdentityMap::ClassMethods

Defined in:
lib/mongo_mapper/plugins/identity_map.rb

Instance Method Summary collapse

Instance Method Details

#get_from_identity_map(id) ⇒ Object

Private - Looks for a document in the identity map



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# File 'lib/mongo_mapper/plugins/identity_map.rb', line 56

def get_from_identity_map(id)
  IdentityMap.repository[IdentityMap.key(self, id)]
end

#load(attrs, with_cast = false) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/identity_map.rb', line 72

def load(attrs, with_cast = false)
  return super unless Thread.current[:mongo_mapper_identity_map_enabled]
  return nil unless attrs
  document = get_from_identity_map(attrs['_id'])

  if !document
    document = super
    document.add_to_identity_map
  end

  document
end

#query(opts = {}) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/identity_map.rb', line 60

def query(opts={})
  super.tap do |query|
    query.identity_map = self if Thread.current[:mongo_mapper_identity_map_enabled]
  end
end

#remove_documents_from_map(*documents) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/identity_map.rb', line 66

def remove_documents_from_map(*documents)
  documents.flatten.compact.each do |document|
    document.remove_from_identity_map
  end
end