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116 lines
3.5 KiB
116 lines
3.5 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\db\sqlite; |
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use yii\db\SqlToken; |
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use yii\helpers\StringHelper; |
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/** |
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* Command represents an SQLite's SQL statement to be executed against a database. |
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* |
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* {@inheritdoc} |
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* |
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* @author Sergey Makinen <sergey@makinen.ru> |
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* @since 2.0.14 |
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*/ |
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class Command extends \yii\db\Command |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function execute() |
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{ |
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$sql = $this->getSql(); |
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$params = $this->params; |
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$statements = $this->splitStatements($sql, $params); |
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if ($statements === false) { |
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return parent::execute(); |
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} |
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$result = null; |
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foreach ($statements as $statement) { |
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list($statementSql, $statementParams) = $statement; |
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$this->setSql($statementSql)->bindValues($statementParams); |
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$result = parent::execute(); |
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} |
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$this->setSql($sql)->bindValues($params); |
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return $result; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function queryInternal($method, $fetchMode = null) |
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{ |
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$sql = $this->getSql(); |
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$params = $this->params; |
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$statements = $this->splitStatements($sql, $params); |
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if ($statements === false) { |
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return parent::queryInternal($method, $fetchMode); |
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} |
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list($lastStatementSql, $lastStatementParams) = array_pop($statements); |
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foreach ($statements as $statement) { |
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list($statementSql, $statementParams) = $statement; |
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$this->setSql($statementSql)->bindValues($statementParams); |
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parent::execute(); |
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} |
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$this->setSql($lastStatementSql)->bindValues($lastStatementParams); |
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$result = parent::queryInternal($method, $fetchMode); |
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$this->setSql($sql)->bindValues($params); |
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return $result; |
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} |
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/** |
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* Splits the specified SQL code into individual SQL statements and returns them |
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* or `false` if there's a single statement. |
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* @param string $sql |
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* @param array $params |
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* @return string[]|false |
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*/ |
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private function splitStatements($sql, $params) |
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{ |
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$semicolonIndex = strpos($sql, ';'); |
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if ($semicolonIndex === false || $semicolonIndex === StringHelper::byteLength($sql) - 1) { |
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return false; |
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} |
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$tokenizer = new SqlTokenizer($sql); |
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$codeToken = $tokenizer->tokenize(); |
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if (count($codeToken->getChildren()) === 1) { |
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return false; |
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} |
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$statements = []; |
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foreach ($codeToken->getChildren() as $statement) { |
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$statements[] = [$statement->getSql(), $this->extractUsedParams($statement, $params)]; |
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} |
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return $statements; |
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} |
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/** |
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* Returns named bindings used in the specified statement token. |
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* @param SqlToken $statement |
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* @param array $params |
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* @return array |
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*/ |
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private function extractUsedParams(SqlToken $statement, $params) |
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{ |
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preg_match_all('/(?P<placeholder>[:][a-zA-Z0-9_]+)/', $statement->getSql(), $matches, PREG_SET_ORDER); |
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$result = []; |
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foreach ($matches as $match) { |
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$phName = ltrim($match['placeholder'], ':'); |
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if (isset($params[$phName])) { |
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$result[$phName] = $params[$phName]; |
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} elseif (isset($params[':' . $phName])) { |
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$result[':' . $phName] = $params[':' . $phName]; |
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} |
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} |
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return $result; |
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} |
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}
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