Module: CassandraObject::Persistence::ClassMethods

Defined in:
lib/cassandra_object/persistence.rb

Instance Method Summary collapse

Instance Method Details

#batch(&block) ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 32

def batch(&block)
  adapter.batch(&block)
end

#batching? ⇒ Boolean 



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# File 'lib/cassandra_object/persistence.rb', line 28

def batching?
  adapter.batching?
end

#create(attributes = {}, &block) ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 18

def create(attributes = {}, &block)
  new(attributes, &block).tap do |object|
    object.save
  end
end

#delete_all ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 14

def delete_all
  adapter.execute "TRUNCATE #{column_family}"
end

#encode_attributes(attributes) ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 45

def encode_attributes(attributes)
  encoded = {}
  attributes.each do |column_name, value|
    if value.nil?
      encoded[column_name] = nil
    else
      encoded[column_name] = attribute_definitions[column_name].coder.encode(value)
    end
  end
  encoded
end

#instantiate(id, attributes) ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 36

def instantiate(id, attributes)
  allocate.tap do |object|
    object.instance_variable_set("@id", id) if id
    object.instance_variable_set("@new_record", false)
    object.instance_variable_set("@destroyed", false)
    object.instance_variable_set("@attributes", typecast_persisted_attributes(object, attributes))
  end
end

#remove(ids) ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 10

def remove(ids)
  adapter.delete column_family, ids
end

#write(id, attributes) ⇒ Object 



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# File 'lib/cassandra_object/persistence.rb', line 24

def write(id, attributes)
  adapter.write column_family, id, encode_attributes(attributes)
end