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<?php |
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declare(strict_types=1); |
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namespace MartinGeorgiev\Doctrine\ORM\Query\AST\Functions; |
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/** |
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* Implementation of PostgreSQL REGEXP_SUBSTR(). |
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* |
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* Returns the substring within string that matches the Nth occurrence of the POSIX regular expression pattern, |
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* or NULL if there is no such match. |
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* |
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* @see https://www.postgresql.org/docs/15/functions-matching.html#FUNCTIONS-POSIX-REGEXP |
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* @since 3.1 |
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* |
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* @author Martin Georgiev <[email protected]> |
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* |
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* @example Using it in DQL: "SELECT REGEXP_SUBSTR(e.text, 'c(.)(..)', 1, 1, 'i', 2) FROM Entity e" |
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*/ |
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class RegexpSubstr extends BaseVariadicFunction |
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{ |
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protected function getNodeMappingPattern(): array |
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{ |
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return [ |
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'StringPrimary,StringPrimary,ArithmeticPrimary,ArithmeticPrimary,StringPrimary,ArithmeticPrimary', |
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'StringPrimary,StringPrimary,ArithmeticPrimary,ArithmeticPrimary,StringPrimary', |
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'StringPrimary,StringPrimary,ArithmeticPrimary,ArithmeticPrimary', |
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'StringPrimary,StringPrimary,ArithmeticPrimary', |
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'StringPrimary,StringPrimary', |
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]; |
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} |
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protected function getFunctionName(): string |
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{ |
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return 'regexp_substr'; |
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} |
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protected function getMinArgumentCount(): int |
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{ |
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return 2; |
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} |
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protected function getMaxArgumentCount(): int |
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{ |
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return 6; |
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} |
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} |
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martin-georgiev /
postgresql-for-doctrine
