/**
* Executes a Query or read command
*
* @param CommandInterface|BaseBuilder $query
* @return Response
* @throws \Exception
* @throws \brightzone\rexpro\ServerException
*/
public function executeReadCommand($query)
{
if ($query instanceof BaseBuilder) {
throw new NotSupportedException("There are currently no processors for gremlin/cypher.");
} elseif (!$this->isSupportedLanguage($query->getScriptLanguage())) {
throw new NotSupportedException(__CLASS__ . " does not support " . $query->getScriptLanguage());
}
try {
$response = $this->client->send($query->getScript());
} catch (\Exception $e) {
//Check for empty return error from server.
if ($e instanceof \brightzone\rexpro\ServerException && $e->getCode() == 204) {
$response = [];
} else {
throw $e;
}
}
return new Response(['_raw' => $response, '_driver' => $this]);
}
/**
* An an `update` clause to the current command bag
* @param null $property
* @param null $value
* @return $this
*/
public function update($property = null, $value = null)
{
//The is one situation in which we will want to reformat
// Or, We're adding a single bit of data as well
if (!is_null($value)) {
return parent::update([$property => $value]);
}
return parent::update($property);
}
/**
* Executes a write command
*
* These are the "CUD" in CRUD
*
* @param CommandInterface|BaseBuilder $command
* @return Response|null values for some write commands
*/
public function executeWriteCommand($command)
{
if ($this->inTransaction) {
$this->addTransactionStatement($command->getScript());
return null;
}
/* ToDo: DELETE is very sloppy */
/* DELETE VERTEX returns an int. DELETE returns either int or before Record */
/* Drivers expect an empty array upon successful delete */
/* This needs to be reconciled in a better way */
$response = $this->executeCommand($command, 'command');
if (strpos(strtolower($command->getScript()), "delete") === 0) {
return new Response(['_raw' => [], '_driver' => $this]);
}
return $response;
}
