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<?php |
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declare(strict_types=1); |
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namespace LaravelFreelancerNL\Aranguent\Concerns; |
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use Closure; |
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use Exception; |
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use Iterator; |
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use LaravelFreelancerNL\Aranguent\Query\Builder as QueryBuilder; |
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use LaravelFreelancerNL\Aranguent\QueryException; |
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use LaravelFreelancerNL\FluentAQL\QueryBuilder as ArangoQueryBuilder; |
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use stdClass; |
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trait RunsQueries |
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{ |
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/** |
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* Run a select statement against the database and returns a generator. |
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* ($useReadPdo is a dummy to adhere to the interface). |
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* |
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* @param string $query |
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* @param array $bindings |
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* @param bool|null $useReadPdo |
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* @return Iterator|null |
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*/ |
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public function cursor($query, $bindings = [], $useReadPdo = null): ?Iterator |
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{ |
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// Usage of a separate DB to read date isn't supported at this time |
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$useReadPdo = null; |
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return $this->run($query, $bindings, function ($query, $bindings) { |
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if ($this->pretending()) { |
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return []; |
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} |
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$statement = $this->arangoClient->prepare($query, $bindings); |
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return $statement->execute(); |
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}); |
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} |
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/** |
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* Execute an AQL statement and return the boolean result. |
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* |
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* @param string|ArangoQueryBuilder $query |
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* @param array $bindings |
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* @return bool |
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*/ |
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public function statement($query, $bindings = []): bool |
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{ |
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[$query, $bindings] = $this->handleQueryBuilder( |
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$query, |
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$bindings |
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); |
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return $this->run($query, $bindings, function ($query, $bindings) { |
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if ($this->pretending()) { |
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return true; |
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} |
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$statement = $this->arangoClient->prepare($query, $bindings); |
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$statement->execute(); |
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$affectedDocumentCount = $statement->getWritesExecuted(); |
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$this->recordsHaveBeenModified($changed = $affectedDocumentCount > 0); |
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return $changed; |
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}); |
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} |
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/** |
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* Run an AQL statement and get the number of rows affected. |
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* |
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* @param string|ArangoQueryBuilder $query |
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* @param array $bindings |
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* @return int |
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*/ |
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public function affectingStatement($query, $bindings = []): int |
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{ |
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[$query, $bindings] = $this->handleQueryBuilder( |
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$query, |
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$bindings |
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); |
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return $this->run($query, $bindings, function () use ($query, $bindings) { |
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if ($this->pretending()) { |
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return 0; |
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} |
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// For update or delete statements, we want to get the number of rows affected |
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// by the statement and return that back to the developer. We'll first need |
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// to execute the statement and get the executed writes from the extra. |
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$statement = $this->arangoClient->prepare($query, $bindings); |
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$statement->execute(); |
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$affectedDocumentCount = $statement->getWritesExecuted(); |
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$this->recordsHaveBeenModified($affectedDocumentCount > 0); |
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return $affectedDocumentCount; |
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}); |
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} |
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/** |
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* Run a raw, unprepared query against the connection. |
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* |
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* @param string $query |
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* @return bool |
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*/ |
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public function unprepared($query): bool |
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{ |
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return $this->run($query, [], function ($query) { |
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if ($this->pretending()) { |
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return true; |
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} |
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$statement = $$this->arangoClient->prepare($query); |
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$statement->execute(); |
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$affectedDocumentCount = $statement->getWritesExecuted(); |
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$change = $affectedDocumentCount > 0; |
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$this->recordsHaveBeenModified($change); |
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return $change; |
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}); |
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} |
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/** |
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* Returns the query execution plan. The query will not be executed. |
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* |
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* @param string $query |
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* @param array<mixed> $bindings |
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* @return stdClass |
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*/ |
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public function explain(string|ArangoQueryBuilder $query, $bindings = []): stdClass |
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{ |
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[$query, $bindings] = $this->handleQueryBuilder( |
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$query, |
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$bindings |
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); |
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$statement = $this->arangoClient->prepare($query, $bindings); |
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return $statement->explain(); |
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} |
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/** |
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* @param ArangoQueryBuilder|string $query |
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* @param array $bindings |
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* @return array |
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*/ |
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protected function handleQueryBuilder($query, array $bindings): array |
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{ |
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if ($query instanceof ArangoQueryBuilder) { |
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$bindings = $query->binds; |
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$query = $query->query; |
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} |
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return [$query, $bindings]; |
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} |
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/** |
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* Run a select statement against the database. |
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* |
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* @SuppressWarnings(PHPMD.BooleanArgumentFlag) |
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* |
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* @param string|ArangoQueryBuilder $query |
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* @param array $bindings |
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* @param bool $useReadPdo |
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* @return mixed |
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*/ |
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public function select($query, $bindings = [], $useReadPdo = true) |
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{ |
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return $this->execute($query, $bindings, $useReadPdo); |
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} |
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/** |
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* Run an AQL query against the database and return the results. |
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* |
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* @SuppressWarnings(PHPMD.BooleanArgumentFlag) |
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* |
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* @param string|ArangoQueryBuilder $query |
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* @param array<mixed>|null $bindings |
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* @param bool $useReadPdo |
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* @return mixed |
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*/ |
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public function execute($query, ?array $bindings = [], $useReadPdo = true) |
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{ |
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// Usage of a separate DB to read date isn't supported at this time |
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$useReadPdo = null; |
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[$query, $bindings] = $this->handleQueryBuilder( |
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$query, |
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$bindings |
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); |
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return $this->run($query, $bindings, function () use ($query, $bindings) { |
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if ($this->pretending()) { |
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return []; |
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} |
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$statement = $this->arangoClient->prepare($query, $bindings); |
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$statement->execute(); |
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return $statement->fetchAll(); |
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}); |
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} |
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/** |
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* Get a new query builder instance. |
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* |
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* @return QueryBuilder |
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*/ |
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public function query(): QueryBuilder |
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{ |
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return new QueryBuilder( |
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$this, |
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$this->getQueryGrammar(), |
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$this->getPostProcessor() |
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); |
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} |
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/** |
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* Run a SQL statement and log its execution context. |
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* |
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* @param string $query |
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* @param array $bindings |
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* @param Closure $callback |
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* @return mixed |
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* |
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* @throws QueryException |
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*/ |
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protected function run($query, $bindings, Closure $callback) |
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{ |
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foreach ($this->beforeExecutingCallbacks as $beforeExecutingCallback) { |
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$beforeExecutingCallback($query, $bindings, $this); |
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} |
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$this->reconnectIfMissingConnection(); |
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$start = microtime(true); |
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// Here we will run this query. If an exception occurs we'll determine if it was |
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// caused by a connection that has been lost. If that is the cause, we'll try |
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// to re-establish connection and re-run the query with a fresh connection. |
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try { |
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$result = $this->runQueryCallback($query, $bindings, $callback); |
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} catch (QueryException $e) { |
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$result = $this->handleQueryException( |
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$e, |
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$query, |
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$bindings, |
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$callback |
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); |
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} |
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// Once we have run the query we will calculate the time that it took to run and |
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// then log the query, bindings, and execution time so we will report them on |
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// the event that the developer needs them. We'll log time in milliseconds. |
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$this->logQuery( |
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$query, |
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$bindings, |
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$this->getElapsedTime($start) |
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); |
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return $result; |
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} |
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/** |
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* Run a SQL statement. |
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* |
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* @param string $query |
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* @param array $bindings |
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* @param Closure $callback |
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* @return mixed |
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* |
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* @throws QueryException |
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*/ |
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protected function runQueryCallback($query, $bindings, Closure $callback) |
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{ |
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// To execute the statement, we'll simply call the callback, which will actually |
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// run the SQL against the PDO connection. Then we can calculate the time it |
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// took to execute and log the query SQL, bindings and time in our memory. |
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try { |
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return $callback($query, $bindings); |
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} catch (Exception $e) { |
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// If an exception occurs when attempting to run a query, we'll format the error |
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// message to include the bindings with SQL, which will make this exception a |
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// lot more helpful to the developer instead of just the database's errors. |
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throw new QueryException( |
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$query, |
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$this->prepareBindings($bindings), |
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$e |
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); |
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} |
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} |
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} |
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.