41 lines
1.6 KiB
PHP
41 lines
1.6 KiB
PHP
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<?php declare(strict_types=1);
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namespace BitBadger\PDODocument;
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use BitBadger\PDODocument\Mapper\ExistsMapper;
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/**
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* Functions to determine if documents exist
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*/
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class Exists
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{
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/**
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* Determine if a document exists for the given ID
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*
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* @param string $tableName The name of the table in which document existence should be determined
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* @param mixed $docId The ID of the document whose existence should be determined
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* @return bool True if the document exists, false if not
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* @throws DocumentException If any is encountered
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*/
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public static function byId(string $tableName, mixed $docId): bool
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{
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return Custom::scalar(Query\Exists::byId($tableName), Parameters::id($docId), new ExistsMapper());
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}
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/**
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* Determine if a document exists using a comparison on JSON fields
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*
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* @param string $tableName The name of the table in which document existence should be determined
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* @param Field[] $fields The field comparison to match
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* @param string $conjunction How to handle multiple conditions (optional; defaults to `AND`)
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* @return bool True if any documents match the field comparison, false if not
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* @throws DocumentException If any is encountered
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*/
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public static function byFields(string $tableName, array $fields, string $conjunction = 'AND'): bool
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{
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$namedFields = Parameters::nameFields($fields);
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return Custom::scalar(Query\Exists::byFields($tableName, $namedFields, $conjunction),
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Parameters::addFields($namedFields, []), new ExistsMapper());
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}
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}
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