56 lines
2.2 KiB
PHP
56 lines
2.2 KiB
PHP
<?php declare(strict_types=1);
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namespace BitBadger\PDODocument\Query;
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use BitBadger\PDODocument\{Configuration, DocumentException, Field, Mode, Query};
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/**
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* Queries to perform partial updates on documents
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*/
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class Patch
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{
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/**
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* Create an UPDATE statement to patch documents
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*
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* @param string $tableName The name of the table in which documents should be patched
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* @param string $whereClause The body of the WHERE clause to use in the UPDATE statement
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* @return string The UPDATE statement to perform the patch
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* @throws DocumentException If the database mode has not been set
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*/
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public static function update(string $tableName, string $whereClause): string
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{
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$setValue = match (Configuration::$mode) {
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Mode::PgSQL => 'data || :data',
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Mode::SQLite => 'json_patch(data, json(:data))',
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default => throw new DocumentException('Database mode not set; cannot make patch statement')
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};
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return "UPDATE $tableName SET data = $setValue WHERE $whereClause";
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}
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/**
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* Query to patch (partially update) a document by its ID
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*
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* @param string $tableName The name of the table in which a document should be patched
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* @return string The query to patch a document by its ID
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* @throws DocumentException If the database mode has not been set
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*/
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public static function byId(string $tableName): string
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{
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return self::update($tableName, Query::whereById());
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}
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/**
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* Query to patch (partially update) a document via a comparison on a JSON field
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*
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* @param string $tableName The name of the table in which documents should be patched
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* @param array|Field[] $field 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 string The query to patch documents via field comparison
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* @throws DocumentException If the database mode has not been set
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*/
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public static function byFields(string $tableName, array $field, string $conjunction = 'AND'): string
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{
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return self::update($tableName, Query::whereByFields($field, $conjunction));
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}
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}
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