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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Pgsql; |
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use Traversable; |
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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\ArrayExpression; |
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use Yiisoft\Db\Expression\ExpressionBuilderInterface; |
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use Yiisoft\Db\Expression\ExpressionBuilderTrait; |
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use Yiisoft\Db\Expression\ExpressionInterface; |
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use Yiisoft\Db\Expression\JsonExpression; |
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use Yiisoft\Db\Query\Query; |
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use function get_class; |
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use function implode; |
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use function in_array; |
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use function is_array; |
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use function str_repeat; |
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final class ArrayExpressionBuilder implements ExpressionBuilderInterface |
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{ |
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use ExpressionBuilderTrait; |
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/** |
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* Method builds the raw SQL from the $expression that will not be additionally escaped or quoted. |
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* |
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* @param ExpressionInterface $expression the expression to be built. |
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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 will not 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 = $expression->getValue(); |
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if ($value === null) { |
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return 'NULL'; |
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} |
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if ($value instanceof Query) { |
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[$sql, $params] = $this->queryBuilder->build($value, $params); |
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return $this->buildSubqueryArray($sql, $expression); |
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} |
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$placeholders = $this->buildPlaceholders($expression, $params); |
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return 'ARRAY[' . implode(', ', $placeholders) . ']' . $this->getTypehint($expression); |
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} |
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/** |
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* Builds placeholders array out of $expression values. |
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* |
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* @param ExpressionInterface $expression |
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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 array |
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*/ |
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protected function buildPlaceholders(ExpressionInterface $expression, &$params): array |
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{ |
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$value = $expression->getValue(); |
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$placeholders = []; |
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if ($value === null || (!is_array($value) && !$value instanceof Traversable)) { |
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return $placeholders; |
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} |
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if ($expression->getDimension() > 1) { |
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foreach ($value as $item) { |
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$placeholders[] = $this->build($this->unnestArrayExpression($expression, $item), $params); |
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} |
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return $placeholders; |
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} |
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foreach ($value as $item) { |
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if ($item instanceof Query) { |
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[$sql, $params] = $this->queryBuilder->build($item, $params); |
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$placeholders[] = $this->buildSubqueryArray($sql, $expression); |
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continue; |
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} |
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$item = $this->typecastValue($expression, $item); |
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if ($item instanceof ExpressionInterface) { |
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$placeholders[] = $this->queryBuilder->buildExpression($item, $params); |
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continue; |
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} |
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$placeholders[] = $this->queryBuilder->bindParam($item, $params); |
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} |
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return $placeholders; |
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} |
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private function unnestArrayExpression(ArrayExpression $expression, $value): ArrayExpression |
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{ |
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$expressionClass = get_class($expression); |
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return new $expressionClass($value, $expression->getType(), $expression->getDimension() - 1); |
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} |
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protected function getTypeHint(ArrayExpression $expression): string |
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{ |
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if ($expression->getType() === null) { |
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return ''; |
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} |
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$result = '::' . $expression->getType(); |
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$result .= str_repeat('[]', $expression->getDimension()); |
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return $result; |
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} |
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/** |
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* Build an array expression from a subquery SQL. |
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* |
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* @param string $sql the subquery SQL. |
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* @param ArrayExpression $expression |
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* |
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* @return string the subquery array expression. |
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*/ |
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protected function buildSubqueryArray(string $sql, ArrayExpression $expression): string |
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{ |
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return 'ARRAY(' . $sql . ')' . $this->getTypeHint($expression); |
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} |
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/** |
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* Casts $value to use in $expression. |
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* |
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* @param ArrayExpression $expression |
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* @param mixed $value |
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* |
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* @return int|JsonExpression |
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*/ |
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protected function typecastValue(ArrayExpression $expression, $value) |
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{ |
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if ($value instanceof ExpressionInterface) { |
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return $value; |
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} |
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if (in_array($expression->getType(), [Schema::TYPE_JSON, Schema::TYPE_JSONB], true)) { |
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return new JsonExpression($value); |
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} |
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return $value; |
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} |
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} |
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yiisoft /
db-pgsql
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