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<?php
/**
* Nextcloud - user_sql
*
* @copyright 2018 Marcin Łojewski <dev@mlojewski.me>
* @author Marcin Łojewski <dev@mlojewski.me>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
namespace OCA\UserSQL\Platform;
use Doctrine\DBAL\DBALException;
use OC\DB\Connection;
/**
* Database platform tools.
*
* @author Marcin Łojewski <dev@mlojewski.me>
*/
abstract class AbstractPlatform
{
/**
* @var Connection The database connection.
*/
protected $connection;
/**
* The class constructor.
*
* @param Connection $connection The database connection.
*/
public function __construct(Connection $connection)
{
$this->connection = $connection;
}
/**
* Get all the tables defined in the database.
*
* @param string $phrase Show only tables containing given phrase.
* @param bool $schemaPrefix Show schema name in the results.
*
* @return array Array with table names.
* @throws DBALException On a database exception.
*/
public function getTables($phrase = "", $schemaPrefix = false)
{
$platform = $this->connection->getDatabasePlatform();
$queryTables = $platform->getListTablesSQL();
$queryViews = $platform->getListViewsSQL(
$this->connection->getDatabase()
);
$tables = array();
$result = $this->connection->executeQuery($queryTables);
while ($row = $result->fetch()) {
$name = $this->getTableName($row, $schemaPrefix);
if (preg_match("/.*$phrase.*/i", $name)) {
$tables[] = $name;
}
}
$result = $this->connection->executeQuery($queryViews);
while ($row = $result->fetch()) {
$name = $this->getViewName($row, $schemaPrefix);
if (preg_match("/.*$phrase.*/i", $name)) {
$tables[] = $name;
}
}
return $tables;
}
/**
* Get a table name from a query result row.
*
* @param array $row The query result row.
* @param string $schema Put schema name in the result.
*
* @return string The table name retrieved from the row.
*/
protected abstract function getTableName($row, $schema);
/**
* Get a view name from a query result row.
*
* @param array $row The query result row.
* @param string $schema Put schema name in the result.
*
* @return string The view name retrieved from the row.
*/
protected abstract function getViewName($row, $schema);
/**
* Get all the columns defined in the table.
*
* @param string $table The table name.
* @param string $phrase Show only columns containing given phrase.
*
* @return array Array with column names.
* @throws DBALException On a database exception.
*/
public function getColumns($table, $phrase = "")
{
$platform = $this->connection->getDatabasePlatform();
$query = $platform->getListTableColumnsSQL($table);
$result = $this->connection->executeQuery($query);
$columns = array();
while ($row = $result->fetch()) {
$name = $this->getColumnName($row);
if (preg_match("/.*$phrase.*/i", $name)) {
$columns[] = $name;
}
}
return $columns;
}
/**
* Get a column name from a query result row.
*
* @param array $row The query result row.
*
* @return string The column name retrieved from the row.
*/
protected abstract function getColumnName($row);
}
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