friendica/src/Database/Definition/DbaDefinition.php

126 lines
3.6 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2010-2022, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* 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 Friendica\Database\Definition;
use Exception;
use Friendica\Core\Hook;
/**
* Stores the whole database definition
*/
class DbaDefinition
{
/** @var string The relative path of the db structure config file */
const DBSTRUCTURE_RELATIVE_PATH = '/static/dbstructure.config.php';
/** @var array The complete DB definition as an array */
protected $definition;
/** @var string */
protected $configFile;
/**
* @param string $basePath The basepath of the dbstructure file (loads relative path in case of null)
*
* @throws Exception in case the config file isn't available/readable
*/
public function __construct(string $basePath)
{
$this->configFile = $basePath . static::DBSTRUCTURE_RELATIVE_PATH;
if (!is_readable($this->configFile)) {
throw new Exception('Missing database structure config file static/dbstructure.config.php at basePath=' . $basePath);
}
}
/**
* @return array Returns the whole Definition as an array
*/
public function getAll(): array
{
return $this->definition;
}
/**
* Get field data for the given table
*
* @param string $table Tavle to load field definitions for
* @param array $data data fields
* @return array fields for the given
*/
public function getFieldsForTable(string $table, array $data = []): array
{
$definition = $this->definition;
if (empty($definition[$table])) {
return [];
}
$fieldNames = array_keys($definition[$table]['fields']);
$fields = [];
// Assign all field that are present in the table
foreach ($fieldNames as $field) {
if (isset($data[$field])) {
// Limit the length of varchar, varbinary, char and binrary fields
if (is_string($data[$field]) && preg_match("/char\((\d*)\)/", $definition[$table]['fields'][$field]['type'], $result)) {
$data[$field] = mb_substr($data[$field], 0, $result[1]);
} elseif (is_string($data[$field]) && preg_match("/binary\((\d*)\)/", $definition[$table]['fields'][$field]['type'], $result)) {
$data[$field] = substr($data[$field], 0, $result[1]);
}
$fields[$field] = $data[$field];
}
}
return $fields;
}
/**
* Loads the database structure definition from the static/dbstructure.config.php file.
* On first pass, defines DB_UPDATE_VERSION constant.
*
* @param bool $withAddonStructure Whether to tack on addons additional tables
*
* @throws Exception in case the definition cannot be found
*
* @see static/dbstructure.config.php
*
* @return self The current instance
*/
public function load(bool $withAddonStructure = false): self
{
$definition = require $this->configFile;
if (!$definition) {
throw new Exception('Corrupted database structure config file static/dbstructure.config.php');
}
if ($withAddonStructure) {
Hook::callAll('dbstructure_definition', $definition);
}
$this->definition = $definition;
return $this;
}
}