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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Pgsql\Builder; |
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use Yiisoft\Db\Exception\Exception; |
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use Yiisoft\Db\Exception\InvalidArgumentException; |
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use Yiisoft\Db\Exception\InvalidConfigException; |
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use Yiisoft\Db\Exception\NotSupportedException; |
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use Yiisoft\Db\Expression\ExpressionBuilderInterface; |
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use Yiisoft\Db\Expression\ExpressionInterface; |
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use Yiisoft\Db\Pgsql\StructuredExpression; |
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use Yiisoft\Db\Query\QueryInterface; |
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use Yiisoft\Db\QueryBuilder\QueryBuilderInterface; |
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use function implode; |
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/** |
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* Builds expressions for {@see StructuredExpression} for PostgreSQL Server. |
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*/ |
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final class StructuredExpressionBuilder implements ExpressionBuilderInterface |
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{ |
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public function __construct(private QueryBuilderInterface $queryBuilder) |
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{ |
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} |
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/** |
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* The method builds the raw SQL from the expression that won't be additionally escaped or quoted. |
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* |
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* @param StructuredExpression $expression The expression build. |
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* @param array $params The binding parameters. |
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* |
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* @throws Exception |
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* @throws InvalidArgumentException |
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* @throws InvalidConfigException |
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* @throws NotSupportedException |
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* |
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* @return string The raw SQL that won't be additionally escaped or quoted. |
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*/ |
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public function build(ExpressionInterface $expression, array &$params = []): string |
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{ |
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$value = $expression->getValue(); |
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if (empty($value)) { |
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return 'NULL'; |
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} |
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if ($value instanceof QueryInterface) { |
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[$sql, $params] = $this->queryBuilder->build($value, $params); |
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return "($sql)" . $this->getTypeHint($expression); |
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} |
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/** @psalm-var string[] $placeholders */ |
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$placeholders = $this->buildPlaceholders($expression, $params); |
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if (empty($placeholders)) { |
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return 'NULL'; |
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} |
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return 'ROW(' . implode(', ', $placeholders) . ')' . $this->getTypeHint($expression); |
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} |
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/** |
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* Builds a placeholder array out of $expression values. |
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* |
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* @param array $params The binding parameters. |
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* |
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* @throws Exception |
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* @throws InvalidArgumentException |
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* @throws InvalidConfigException |
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* @throws NotSupportedException |
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*/ |
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private function buildPlaceholders(StructuredExpression $expression, array &$params): array |
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{ |
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$value = $expression->getNormalizedValue(); |
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if (!is_iterable($value)) { |
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return []; |
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} |
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$placeholders = []; |
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$columns = $expression->getColumns(); |
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/** @psalm-var int|string $columnName */ |
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foreach ($value as $columnName => $item) { |
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if (isset($columns[$columnName])) { |
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$item = $columns[$columnName]->dbTypecast($item); |
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} |
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if ($item instanceof ExpressionInterface) { |
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$placeholders[] = $this->queryBuilder->buildExpression($item, $params); |
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} else { |
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$placeholders[] = $this->queryBuilder->bindParam($item, $params); |
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} |
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} |
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return $placeholders; |
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} |
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/** |
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* @return string The typecast expression based on {@see type}. |
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*/ |
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private function getTypeHint(StructuredExpression $expression): string |
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{ |
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$type = $expression->getType(); |
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if ($type === null) { |
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return ''; |
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} |
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return '::' . $type; |
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} |
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} |
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yiisoft /
db-pgsql
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