Module: DynamoRecord::Persistence::ClassMethods

Defined in:
lib/dynamo_record/persistence.rb

Instance Method Summary collapse

Instance Method Details

#client ⇒ Object 



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

def client
  @client ||= Aws::DynamoDB::Client.new(
                access_key_id: DynamoRecord::Config.access_key_id,
                secret_access_key: DynamoRecord::Config.secret_access_key,
                region: DynamoRecord::Config.region
              )
end

#create_table(opts = {}) ⇒ Object 



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# File 'lib/dynamo_record/persistence.rb', line 22

def create_table(opts = {})
  table_name = opts[:table_name] || self.table_name
  read_capacity = opts[:read_capacity] || DynamoRecord::Config.read_capacity_units
  write_capacity = opts[:write_capacity] || DynamoRecord::Config.write_capacity_units

  # Default id
  attribute_definitions = [{attribute_name: "id", attribute_type: "S"}]

  # Global indexes
  indexes = []
  attributes.each do |key, value|
    indexes << key if value[:options][:index]
  end

  global_secondary_indexes = []
  indexes.each do |index|
    index_definition = {}
    index_definition[:index_name] = "#{index}-index"
    index_definition[:key_schema] = [{ attribute_name: index, key_type: 'HASH' }]
    index_definition[:projection] = { projection_type: 'ALL'}
    index_definition[:provisioned_throughput] = { read_capacity_units: read_capacity, write_capacity_units: write_capacity }
    global_secondary_indexes << index_definition
    attribute_definitions << {attribute_name: index.to_s, 
                              attribute_type: attributes[index][:type] == :string ? 'S' : 'N'} # only String and Number are supported. Not Binary
  end

  options = {
    attribute_definitions: attribute_definitions,
    table_name: table_name,
    key_schema: [
      {
        attribute_name: "id",
        key_type: "HASH",
      },
    ],
    provisioned_throughput: {
      read_capacity_units: read_capacity,
      write_capacity_units: write_capacity,
    }
  }

  options.merge!(global_secondary_indexes: global_secondary_indexes) unless global_secondary_indexes.empty?

  response = self.client.create_table(options)
end

#default_options ⇒ Object 



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

def default_options
  { table_name: self.table_name }
end

#table_name ⇒ Object 



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# File 'lib/dynamo_record/persistence.rb', line 6

def table_name
  @table_name ||= DynamoRecord::Config.namespace ? "#{DynamoRecord::Config.namespace}_#{base_class.name.downcase.pluralize}" : base_class.name.downcase.pluralize
end