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<?php |
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/** |
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* Plasma Driver MySQL component |
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* Copyright 2018-2019 PlasmaPHP, All Rights Reserved |
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* |
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* Website: https://github.com/PlasmaPHP |
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* License: https://github.com/PlasmaPHP/driver-mysql/blob/master/LICENSE |
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*/ |
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namespace Plasma\Drivers\MySQL\Commands; |
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/** |
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* Statement Prepare command. |
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* @internal |
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*/ |
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class StatementPrepareCommand extends PromiseCommand { |
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/** |
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* The identifier for this command. |
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* @var int |
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* @source |
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*/ |
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const COMMAND_ID = 0x16; |
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/** |
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* @var \Plasma\ClientInterface |
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*/ |
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protected $client; |
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/** |
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* @var string |
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*/ |
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protected $query; |
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/** |
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* @var string |
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*/ |
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protected $rewrittenQuery; |
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/** |
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* @var array |
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*/ |
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protected $rewrittenParams; |
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/** |
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* @var \Plasma\Drivers\MySQL\Messages\PrepareStatementOkMessage |
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*/ |
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protected $okResponse; |
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/** |
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* @var \Plasma\ColumnDefinitionInterface[] |
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*/ |
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protected $params = array(); |
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/** |
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* @var \Plasma\ColumnDefinitionInterface[] |
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*/ |
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protected $fields = array(); |
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/** |
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* @var bool |
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*/ |
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protected $paramsDone = false; |
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/** |
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* @var \Plasma\StatementInterface|null |
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*/ |
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protected $resolveValue; |
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/** |
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* @var bool |
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*/ |
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protected $deprecatedEOF; |
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/** |
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* Constructor. |
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* @param \Plasma\ClientInterface $client |
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* @param \Plasma\DriverInterface $driver |
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* @param string $query |
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*/ |
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function __construct(\Plasma\ClientInterface $client, \Plasma\DriverInterface $driver, string $query) { |
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parent::__construct($driver); |
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$this->client = $client; |
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$this->driver = $driver; |
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$this->query = $query; |
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$this->deprecatedEOF = (($driver->getHandshake()->capability & \Plasma\Drivers\MySQL\CapabilityFlags::CLIENT_DEPRECATE_EOF) !== 0); |
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[ 'query' => $this->rewrittenQuery, 'parameters' => $this->rewrittenParams ] = \Plasma\Utility::parseParameters($this->query, '?'); |
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} |
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/** |
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* Get the encoded message for writing to the database connection. |
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* @return string |
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*/ |
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function getEncodedMessage(): string { |
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return \chr(static::COMMAND_ID).$this->rewrittenQuery; |
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} |
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/** |
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* Sends the next received value into the command. |
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* @param mixed $value |
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* @return void |
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* @throws \Plasma\Drivers\MySQL\Messages\ParseException |
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*/ |
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function onNext($value): void { |
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if($value instanceof \Plasma\Drivers\MySQL\Messages\PrepareStatementOkMessage) { |
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$this->okResponse = $value; |
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$this->fieldsCount = $this->okResponse->numColumns; |
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$this->paramsDone = ($this->okResponse->numParams === 0); |
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if($this->paramsDone && $this->fieldsCount === 0) { |
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$this->createResolve(); |
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} |
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} elseif($value instanceof \Plasma\Drivers\MySQL\ProtocolOnNextCaller) { |
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$buffer = $value->getBuffer(); |
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$parser = $value->getParser(); |
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$parsed = $this->handleQueryOnNextCallerColumns($buffer, $parser); |
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if($this->paramsDone) { |
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$this->fields[$parsed->getName()] = $parsed; |
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} else { |
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$this->params[] = $parsed; |
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} |
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if($this->deprecatedEOF) { |
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if($this->paramsDone && $this->fieldsCount <= \count($this->fields)) { |
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$this->createResolve(); |
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} elseif($this->okResponse->numParams <= \count($this->params) && $this->resolveValue === null) { |
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$this->paramsDone = true; |
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if($this->fieldsCount === 0) { |
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$this->createResolve(); |
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} |
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} |
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} |
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} elseif( |
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$value instanceof \Plasma\Drivers\MySQL\Messages\EOFMessage || $value instanceof \Plasma\Drivers\MySQL\Messages\OkResponseMessage |
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) { |
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if(!$this->paramsDone) { |
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$this->paramsDone = true; |
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if($this->fieldsCount === 0) { |
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$this->createResolve(); |
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} |
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return; |
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} |
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$this->createResolve(); |
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} else { |
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throw new \Plasma\Drivers\MySQL\Messages\ParseException('Command received value of type ' |
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.(\is_object($value) ? \get_class($value) : \gettype($value)).' it can not handle'); |
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} |
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} |
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/** |
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* Whether the sequence ID should be resetted. |
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* @return bool |
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*/ |
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function resetSequence(): bool { |
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return true; |
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} |
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/** |
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* Creates the resolve value. |
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* @return void |
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*/ |
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protected function createResolve(): void { |
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$this->finished = true; |
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$id = $this->okResponse->statementID; |
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$queryr = $this->rewrittenQuery; |
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$paramsr = $this->rewrittenParams; |
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$this->resolveValue = new \Plasma\Drivers\MySQL\Statement($this->client, $this->driver, $id, $this->query, $queryr, $paramsr, $this->params, $this->fields); |
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$this->deferred->resolve($this->resolveValue); |
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} |
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} |
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PlasmaPHP /
driver-mysql
