=')) { $mode = $this->getConfig('transaction_mode') ?? 'DEFERRED'; $this->getPdo()->exec("BEGIN {$mode} TRANSACTION"); return; } $this->getPdo()->beginTransaction(); } /** * Escape a binary value for safe SQL embedding. * * @param string $value * @return string */ protected function escapeBinary($value) { $hex = bin2hex($value); return "x'{$hex}'"; } /** * Determine if the given database exception was caused by a unique constraint violation. * * @param \Exception $exception * @return bool */ protected function isUniqueConstraintError(Exception $exception) { return (bool) preg_match('#(column(s)? .* (is|are) not unique|UNIQUE constraint failed: .*)#i', $exception->getMessage()); } /** * Extract the columns that caused a unique constraint violation. * * @param Exception $exception * @return array{index: null, columns: list} */ protected function parseUniqueConstraintViolation(Exception $exception): array { preg_match('#UNIQUE constraint failed: (.+)#i', $exception->getMessage(), $matches); $columns = []; if (isset($matches[1])) { $columns = array_map( static fn ($col) => last(explode('.', trim($col))), explode(',', $matches[1]) ); } return ['columns' => $columns, 'index' => null]; } /** * Get the default query grammar instance. * * @return \Illuminate\Database\Query\Grammars\SQLiteGrammar */ protected function getDefaultQueryGrammar() { return new QueryGrammar($this); } /** * Get a schema builder instance for the connection. * * @return \Illuminate\Database\Schema\SQLiteBuilder */ public function getSchemaBuilder() { if (is_null($this->schemaGrammar)) { $this->useDefaultSchemaGrammar(); } return new SQLiteBuilder($this); } /** * Get the default schema grammar instance. * * @return \Illuminate\Database\Schema\Grammars\SQLiteGrammar */ protected function getDefaultSchemaGrammar() { return new SchemaGrammar($this); } /** * Get the schema state for the connection. * * @param \Illuminate\Filesystem\Filesystem|null $files * @param callable|null $processFactory * * @throws \RuntimeException */ public function getSchemaState(?Filesystem $files = null, ?callable $processFactory = null) { return new SqliteSchemaState($this, $files, $processFactory); } /** * Get the default post processor instance. * * @return \Illuminate\Database\Query\Processors\SQLiteProcessor */ protected function getDefaultPostProcessor() { return new SQLiteProcessor; } }