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<?php |
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namespace Guillermoandrae\Db\DynamoDb; |
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use Aws\DynamoDb\Marshaler; |
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use ErrorException; |
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final class QueryRequest extends AbstractSearchRequest |
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{ |
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/** |
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* @var string The condition that specifies the key values for items to be retrieved. |
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*/ |
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private $keyConditionExpression = ''; |
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/** |
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* Registers the Marshaler, table name, and key conditions with this object. |
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* |
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* @param Marshaler $marshaler The Marshaler. |
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* @param string $tableName The table name. |
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* @param array $keyConditions OPTIONAL The key conditions. |
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* @throws ErrorException |
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*/ |
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public function __construct(Marshaler $marshaler, string $tableName, array $keyConditions = []) |
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{ |
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parent::__construct($marshaler, $tableName); |
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if (!empty($keyConditions)) { |
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$this->setPartitionKeyConditionExpression( |
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$keyConditions['partition']['name'], |
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$keyConditions['partition']['value'] |
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); |
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if (isset($keyConditions['sort'])) { |
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$this->setSortKeyConditionExpression( |
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$keyConditions['sort']['name'], |
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$keyConditions['sort']['operator'], |
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$keyConditions['sort']['value'] |
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); |
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} |
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} |
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} |
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/** |
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* Sets condition expression for the partition key. |
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* |
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* @param string $keyName The name of the partition key. |
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* @param mixed $value The desired value. |
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* @return QueryRequest This object. |
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* @throws ErrorException Thrown when an unsupported operator is requested. |
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*/ |
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public function setPartitionKeyConditionExpression(string $keyName, $value): QueryRequest |
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{ |
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$partitionKeyConditionExpression = $this->parseExpression(RequestOperators::EQ, $keyName); |
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$this->addExpressionAttributeValue($keyName, $value); |
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$this->keyConditionExpression = $partitionKeyConditionExpression; |
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return $this; |
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} |
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/** |
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* Sets condition expressions for the sort key. |
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* |
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* @param string $keyName The name of the sort key. |
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* @param string $operator The operator. |
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* @param mixed $value The desired value. |
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* @return QueryRequest This object. |
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* @throws ErrorException Thrown when an unsupported operator is requested. |
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*/ |
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public function setSortKeyConditionExpression(string $keyName, string $operator, $value): QueryRequest |
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{ |
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$sortKeyConditionExpression = $this->parseExpression($operator, $keyName); |
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$this->addExpressionAttributeValue($keyName, $value); |
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$this->keyConditionExpression .= ' AND ' . $sortKeyConditionExpression; |
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return $this; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function get(): array |
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{ |
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$query = parent::get(); |
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$query['KeyConditionExpression'] = $this->keyConditionExpression; |
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return $query; |
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} |
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} |
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guillermoandrae /
php-dynamodb
