Allows to execute a batch of Put and/or Delete Requests for many tables in a single call. A total of 25 requests are allowed.
There are no transaction guarantees provided by this API. It does not allow conditional puts nor does it support return values.
Access
public
Parameters
Parameter |
Type |
Required |
Description |
---|---|---|---|
|
Optional |
An associative array of parameters that can have the following keys:
|
Returns
Type |
Description |
---|---|
A |
Examples
Create a new table with a Hash Key.
// Instantiate the class $dynamodb = new AmazonDynamoDB(); $table_name = 'my-table-' . time(); $current_time = (int) time(); #################################################################### # Create a new DynamoDB table $response = $dynamodb->create_table(array( 'TableName' => $table_name, 'KeySchema' => array( 'HashKeyElement' => array( 'AttributeName' => 'id', 'AttributeType' => AmazonDynamoDB::TYPE_NUMBER ), 'RangeKeyElement' => array( 'AttributeName' => 'date', 'AttributeType' => AmazonDynamoDB::TYPE_NUMBER ) ), 'ProvisionedThroughput' => array( 'ReadCapacityUnits' => 50, 'WriteCapacityUnits' => 50 ) )); // Check for success... if ($response->isOK()) { echo '# Kicked off the creation of the DynamoDB table...' . PHP_EOL; } else { print_r($response); } #################################################################### # Sleep and poll until the table has been created $count = 0; do { sleep(1); $count++; $response = $dynamodb->describe_table(array( 'TableName' => $table_name )); } while ((string) $response->body->Table->TableStatus !== 'ACTIVE'); echo "The table \"${table_name}\" has been created (slept ${count} seconds)." . PHP_EOL; #################################################################### # Adding data to the table echo PHP_EOL . PHP_EOL; echo "# Adding data to the table..." . PHP_EOL; // Add items to the batch $response = $dynamodb->batch_write_item(array( 'RequestItems' => array( $table_name => array( array( 'PutRequest' => array( 'Item' => $dynamodb->attributes(array( 'id' => 1, // Primary (Hash) Key 'date' => $current_time, // Range Key 'key1' => 'value1', 'key2' => 'value2', 'key3' => array('sub-value1', 'sub-value2'), )) ) ), array( 'PutRequest' => array( 'Item' => $dynamodb->attributes(array( 'id' => 2, // Primary (Hash) Key 'date' => $current_time, // Range Key 'key1' => 'value3', 'key2' => 'value4', 'key3' => array('sub-value1', 'sub-value2'), )) ) ), array( 'PutRequest' => array( 'Item' => $dynamodb->attributes(array( 'id' => 3, // Primary (Hash) Key 'date' => $current_time, // Range Key 'key1' => 'value5', 'key2' => 'value6', 'key3' => array('sub-value1', 'sub-value2'), )) ) ), ) ) )); // Check for success... if ($response->isOK()) { echo "The data has been added to the table." . PHP_EOL; } else { print_r($response); } #################################################################### # Getting an item echo PHP_EOL . PHP_EOL; echo "# Getting an item from the table..." . PHP_EOL; // Get an item $response = $dynamodb->get_item(array( 'TableName' => $table_name, 'Key' => $dynamodb->attributes(array( 'HashKeyElement' => 3, // "id" column 'RangeKeyElement' => $current_time, // "date" column )), 'AttributesToGet' => array('id', 'date', 'key1', 'key2', 'key3'), 'ConsistentRead' => 'true' )); // Check for success... if ($response->isOK()) { var_dump((string) $response->body->Item->key1->{AmazonDynamoDB::TYPE_STRING}); } else { print_r($response); } #################################################################### # Updating an item echo PHP_EOL . PHP_EOL; echo "# Updating an item from the table..." . PHP_EOL; // Updating an item $response = $dynamodb->update_item(array( 'TableName' => $table_name, 'Key' => $dynamodb->attributes(array( 'HashKeyElement' => 3, // "id" column 'RangeKeyElement' => $current_time, // "date" column )), 'AttributeUpdates' => array( 'key1' => array( 'Action' => AmazonDynamoDB::ACTION_PUT, 'Value' => array(AmazonDynamoDB::TYPE_STRING => 'updated-value1') ), 'key2' => array( 'Action' => AmazonDynamoDB::ACTION_DELETE ), 'key3' => array( 'Action' => AmazonDynamoDB::ACTION_ADD, 'Value' => array(AmazonDynamoDB::TYPE_STRING_SET => array('sub-value3')) ), 'key4' => array( 'Action' => AmazonDynamoDB::ACTION_PUT, 'Value' => $dynamodb->binary('binary-value') ), ), 'Expected' => array( 'key1' => array( 'Value' => array( AmazonDynamoDB::TYPE_STRING => 'value5' ) ) ) )); // Check for success... if ($response->isOK()) { echo 'Updating the item...' . PHP_EOL; } else { print_r($response); } #################################################################### # Checking the binary result echo PHP_EOL . PHP_EOL; echo "# Getting an item from the table..." . PHP_EOL; // Get an item $response = $dynamodb->get_item(array( 'TableName' => $table_name, 'Key' => $dynamodb->attributes(array( 'HashKeyElement' => 3, // "id" column 'RangeKeyElement' => $current_time, // "date" column )), 'AttributesToGet' => array('key4'), 'ConsistentRead' => 'true' )); // Check for success... if ($response->isOK()) { var_dump((string) $response->body->Item->key4->{AmazonDynamoDB::TYPE_BINARY}); } else { print_r($response); } #################################################################### # Deleting an item echo PHP_EOL . PHP_EOL; echo "# Deleting an item from the table..." . PHP_EOL; // Deleting an item $response = $dynamodb->delete_item(array( 'TableName' => $table_name, 'Key' => $dynamodb->attributes(array( 'HashKeyElement' => 1, // "id" column 'RangeKeyElement' => $current_time, // "date" column )), )); // Check for success... if ($response->isOK()) { echo 'Deleting the item...' . PHP_EOL; } else { print_r($response); } #################################################################### # Deleting the table echo PHP_EOL . PHP_EOL; echo "# Deleting the \"${table_name}\" table..." . PHP_EOL; $response = $dynamodb->delete_table(array( 'TableName' => $table_name )); // Check for success... if ($response->isOK()) { echo 'The table is in the process of deleting...' . PHP_EOL; } else { print_r($response); } #################################################################### # Sleep and poll until the table has been deleted. $count = 0; do { echo '.'; sleep(1); $count++; $response = $dynamodb->describe_table(array( 'TableName' => $table_name )); } while ((integer) $response->status !== 400); echo "The table \"${table_name}\" has been deleted (slept ${count} seconds)." . PHP_EOL;
Source
Method defined in services/dynamodb.class.php | Toggle source view (6 lines) | View on GitHub