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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Tests\Support; |
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use Yiisoft\Db\Driver\PDO\ConnectionPDOInterface; |
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final class DbHelper |
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{ |
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public static function getCommmentsFromColumn( |
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string $table, |
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string $column, |
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ConnectionPDOInterface $db |
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): array|null { |
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return match ($db->getName()) { |
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'pgsql' => $db->createCommand( |
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<<<SQL |
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SELECT |
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pgd.description |
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FROM |
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pg_catalog.pg_statio_all_tables as st |
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INNER JOIN pg_catalog.pg_description pgd ON (pgd.objoid=st.relid) |
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INNER JOIN pg_catalog.pg_attribute pga ON (pga.attrelid=st.relid AND pga.attnum=pgd.objsubid) |
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WHERE |
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st.relname=:table AND pga.attname=:column |
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SQL, |
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['table' => $table, 'column' => $column] |
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)->queryOne(), |
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'sqlsrv' => $db->createCommand( |
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<<<SQL |
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SELECT |
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value |
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FROM |
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sys.extended_properties |
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WHERE |
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major_id = OBJECT_ID(:table) AND minor_id = COLUMNPROPERTY(major_id, :column, 'ColumnId') |
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SQL, |
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['table' => $table, 'column' => $column] |
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)->queryOne(), |
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}; |
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} |
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public static function getCommmentsFromTable( |
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string $table, |
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ConnectionPDOInterface $db |
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): array|null { |
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return match ($db->getName()) { |
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'pgsql' => $db->createCommand( |
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<<<SQL |
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SELECT obj_description(oid, 'pg_class') as description FROM pg_class WHERE relname= :table |
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SQL, |
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['table' => $table] |
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)->queryOne(), |
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'sqlsrv' => $db->createCommand( |
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<<<SQL |
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SELECT |
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value |
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FROM |
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sys.extended_properties |
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WHERE |
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major_id = OBJECT_ID(:table) AND minor_id = 0 |
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SQL, |
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['table' => $table] |
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)->queryOne(), |
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}; |
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} |
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/** |
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* Adjust dbms specific escaping. |
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* |
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* @param string $sql string SQL statement to adjust. |
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* @param string $drivername string DBMS name. |
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* |
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* @return mixed |
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*/ |
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public static function replaceQuotes(string $sql, string $drivername): string |
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{ |
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return match ($drivername) { |
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'mysql', 'sqlite' => str_replace(['[[', ']]'], '`', $sql), |
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'oci' => str_replace(['[[', ']]'], '"', $sql), |
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'pgsql' => str_replace(['\\[', '\\]'], ['[', ']'], preg_replace('/(\[\[)|((?<!(\[))]])/', '"', $sql)), |
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'db', 'sqlsrv' => str_replace(['[[', ']]'], ['[', ']'], $sql), |
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default => $sql, |
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}; |
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} |
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} |
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yiisoft /
db
