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MoviesItemOps05.rb

MoviesItemOps05.rb demonstrates how to

# # Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. # # This file is licensed under the Apache License, Version 2.0 (the "License"). # You may not use this file except in compliance with the License. A copy of # the License is located at # # http://aws.amazon.com/apache2.0/ # # This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR # CONDITIONS OF ANY KIND, either express or implied. See the License for the # specific language governing permissions and limitations under the License. # require "aws-sdk" Aws.config.update({ region: "us-west-2", endpoint: "http://localhost:8000" }) dynamodb = Aws::DynamoDB::Client.new table_name = 'Movies' year = 2015 title = "The Big New Movie" params = { table_name: table_name, key: { year: year, title: title }, update_expression: "remove info.actors[0]", condition_expression: "size(info.actors) > :num", expression_attribute_values: { ":num" => 3 }, return_values: "UPDATED_NEW" } begin result = dynamodb.update_item(params) puts "Updated item. ReturnValues are:" result.attributes["info"].each do |key, value| if key == "rating" puts "#{key}: #{value.to_f}" else puts "#{key}: #{value}" end end rescue Aws::DynamoDB::Errors::ServiceError => error puts "Unable to update item:" puts "#{error.message}" end

Sample Details

Service: dynamodb

Last tested:

Author: AWS

Type: full-example

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