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Contents
module Fog
module AWS
class DynamoDB
class Real
class DeprecatedAttributeUpdates < Exception; end
# Update DynamoDB item
#
# ==== Parameters
# * 'table_name'<~String> - name of table for item
# * 'key'<~Hash> - list of elements to be updated and their value
# {
# "ForumName": {"S": "Amazon DynamoDB"},
# "Subject": {"S": "Maximum number of items?"}
# }
#
# * 'options'<~Hash>:
# * 'KeyConditionExpression'<~String> - the condition elements need to match
# * 'ExpressionAttributeValues'<~Hash> - values to be used in the key condition expression
# * 'ReturnValues'<~String> - data to return in %w{ALL_NEW ALL_OLD NONE UPDATED_NEW UPDATED_OLD}, defaults to NONE
#
# ==== Returns
# * response<~Excon::Response>:
# * body<~Hash>:
# varies based on ReturnValues param, see: http://docs.amazonwebservices.com/amazondynamodb/latest/developerguide/API_UpdateItem.html
#
# See DynamoDB Documentation: http://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_UpdateItem.html
#
def update_item(table_name, key, options = {}, deprecated_attribute_updates = nil)
if deprecated_attribute_updates
raise DeprecatedAttributeUpdates, "The `20111205` DynamoDB API is deprecated. You need to use `ExpressionAttributeValues` instead of `AttributeUpdates`."
attribute_updates = options
options = deprecated_attribute_updates
end
body = {
'Key' => key,
'TableName' => table_name,
'AttributeUpdates' => attribute_updates,
}.merge(options)
request(
:body => Fog::JSON.encode(body),
:headers => {'x-amz-target' => 'DynamoDB_20120810.UpdateItem'}
)
end
end
end
end
end
Version data entries
27 entries across 25 versions & 2 rubygems