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<?php |
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namespace Hoooklife\DynamodbPodm\Grammars; |
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use Aws\DynamoDb\DynamoDbClient; |
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use Hoooklife\DynamodbPodm\DynamoDB\ExecutableQuery; |
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use Hoooklife\DynamodbPodm\DynamoDB\RawDynamoDbQuery; |
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/** |
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* Class DynamoDBBuilder |
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* |
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* @package BaoPham\DynamoDb\DynamoDb |
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* |
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* Methods are in the form of `set<key_name>`, where `<key_name>` |
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* is the key name of the query body to be sent. |
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* |
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* For example, to build a query: |
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* [ |
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* 'AttributeDefinitions' => ..., |
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* 'GlobalSecondaryIndexUpdates' => ... |
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* 'TableName' => ... |
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* ] |
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* |
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* Do: |
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* |
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* $query = $query->setAttributeDefinitions(...)->setGlobalSecondaryIndexUpdates(...)->setTableName(...); |
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* |
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* When ready: |
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* |
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* $query->prepare()->updateTable(); |
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* |
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* Common methods: |
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* |
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* @method DynamoDBBuilder setExpressionAttributeNames(array $mapping) |
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* @method DynamoDBBuilder setFilterExpression(string $expression) |
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* @method DynamoDBBuilder setUpdateExpression(string $expression) |
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* @method DynamoDBBuilder setAttributeUpdates(array $updates) |
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* @method DynamoDBBuilder setConsistentRead(bool $consistent) |
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* @method DynamoDBBuilder setScanIndexForward(bool $forward) |
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* @method DynamoDBBuilder setExclusiveStartKey(mixed $key) |
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* @method DynamoDBBuilder setReturnValues(string $type) |
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* @method DynamoDBBuilder setTableName(string $table) |
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* @method DynamoDBBuilder setIndexName(string $index) |
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* @method DynamoDBBuilder setSelect(string $select) |
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* @method DynamoDBBuilder setItem(array $item) |
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* @method DynamoDBBuilder setKeys(array $keys) |
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* @method DynamoDBBuilder setLimit(int $limit) |
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* @method DynamoDBBuilder setKey(array $key) |
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*/ |
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class DynamoDBBuilder |
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{ |
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/** |
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* Query body to be sent to AWS |
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* |
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* @var array |
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*/ |
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public $query = []; |
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public $batchWriteItem = []; |
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/** @var $dynamodbClient DynamoDbClient */ |
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protected $dynamodbClient; |
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public function __construct(array $config) |
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{ |
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$this->dynamodbClient = new DynamoDbClient($config["S3Config"]); |
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} |
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public function hydrate(array $query) |
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{ |
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$this->query = $query; |
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return $this; |
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} |
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public function setExpressionAttributeName($placeholder, $name) |
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{ |
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$this->query['ExpressionAttributeNames'][$placeholder] = $name; |
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return $this; |
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} |
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public function setExpressionAttributeValue($placeholder, $value) |
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{ |
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$this->query['ExpressionAttributeValues'][$placeholder] = $value; |
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return $this; |
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} |
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public function setKeyConditionExpression($mapping) |
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{ |
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if ($mapping) { |
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$this->query['KeyConditionExpression'] = $mapping; |
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} |
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return $this; |
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} |
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public function setProjectionExpression($expression) |
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{ |
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if ($expression) { |
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$this->query['ProjectionExpression'] = $expression; |
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} |
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return $this; |
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} |
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public function setExpressionAttributeValues($mapping) |
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{ |
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if ($mapping) { |
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$this->query['ExpressionAttributeValues'] = $mapping; |
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} |
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return $this; |
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} |
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public function setRequestItems($items) |
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{ |
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$this->batchWriteItem['RequestItems'] = $items; |
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return $this; |
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} |
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/** |
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* @return ExecutableQuery |
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*/ |
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public function prepare(): ExecutableQuery |
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{ |
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$raw = new RawDynamoDbQuery(null, $this->query); |
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return new ExecutableQuery($this->dynamodbClient, $raw->finalize()->query); |
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} |
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/** |
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* @param string $method |
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* @param array $parameters |
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* @return mixed |
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*/ |
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public function __call($method, $parameters) |
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{ |
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if (strpos($method, 'set') === 0) { |
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$key = array_reverse(explode('set', $method, 2))[0]; |
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$this->query[$key] = current($parameters); |
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return $this; |
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} |
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throw new BadMethodCallException(sprintf( |
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'Method %s::%s does not exist.', |
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static::class, |
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$method |
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)); |
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} |
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} |
hooklife /
DynamoDBODM
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