gnu-social/src/Core/Entity.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace App\Core;
use App\Core\DB\DB;
use App\Util\Exception\NotFoundException;
use App\Util\Formatting;
use BadMethodCallException;
use DateTime;
use Exception;
use InvalidArgumentException;
/**
* Base class to all entities, with some utilities
*/
abstract class Entity
{
public function __call(string $name, array $arguments): mixed
{
if (Formatting::startsWith($name, 'has')) {
$prop = Formatting::camelCaseToSnakeCase(Formatting::removePrefix($name, 'has'));
// https://wiki.php.net/rfc/closure_apply#proposal
$private_property_accessor = fn ($prop) => isset($this->{$prop});
$private_property_accessor = $private_property_accessor->bindTo($this, \get_called_class());
return $private_property_accessor($prop);
}
throw new BadMethodCallException('Non existent method ' . \get_called_class() . "::{$name} called with arguments: " . print_r($arguments, true));
}
/**
* Create an instance of the called class or fill in the
* properties of $obj with the associative array $args. Doesn't
* persist the result
*
* @param null|mixed $obj
*/
public static function create(array $args, $obj = null)
{
$class = static::class;
$date = new DateTime();
if (!\is_null($obj)) { // Update modified
if (property_exists($class, 'modified')) {
$args['modified'] = $date;
}
} else {
$obj = new $class();
foreach (['created', 'modified'] as $prop) {
if (property_exists($class, $prop)) {
$args[$prop] = $date;
}
}
}
foreach ($args as $prop => $val) {
if (property_exists($obj, $prop)) {
$set = 'set' . ucfirst(Formatting::snakeCaseToCamelCase($prop));
$obj->{$set}($val);
} else {
Log::error($m = "Property {$class}::{$prop} doesn't exist");
throw new InvalidArgumentException($m);
}
}
return $obj;
}
/**
* Create a new instance, but check for duplicates
*
* @return array [$obj, $is_update]
*/
public static function createOrUpdate(array $args, array $find_by_keys = []): array
{
$table = DB::getTableForClass(\get_called_class());
$find_by = $find_by_keys == [] ? $args : array_intersect_key($args, array_flip($find_by_keys));
try {
$obj = DB::findOneBy($table, $find_by);
} catch (NotFoundException) {
$obj = null;
// @codeCoverageIgnoreStart
} catch (Exception $e) {
Log::unexpected_exception($e);
// @codeCoverageIgnoreEnd
}
$is_update = $obj !== null;
return [self::create($args, $obj), $is_update];
}
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/**
* Get an Entity from its primary key
*
* Support multiple formats:
* - mixed $values - convert to array and check next
* - array[int => mixed] $values - get keys for entity and set them in order and proceed to next case
* - array[string => mixed] $values - Perform a regular find
*
* Examples:
* Entity::getByPK(42);
* Entity::getByPK([42, 'foo']);
* Entity::getByPK(['key1' => 42, 'key2' => 'foo'])
*
* @return null|static
*/
public static function getByPK(mixed $values): ?self
{
$values = \is_array($values) ? $values : [$values];
$class = \get_called_class();
$keys = DB::getPKForClass($class);
$find_by = [];
foreach ($values as $k => $v) {
if (\is_string($k)) {
$find_by[$k] = $v;
} else {
$find_by[$keys[$k]] = $v;
}
}
try {
return DB::findOneBy($class, $find_by);
} catch (NotFoundException $e) {
return null;
}
}
/**
* Who should be notified about this object?
*
* @return array of ids of Actors
*/
public function getNotificationTargetIds(array $ids_already_known = [], ?int $sender_id = null): array
{
// Additional actors that should know about this
if (array_key_exists('additional', $ids_already_known)) {
return $ids_already_known['additional'];
}
return [];
}
/**
* Who should be notified about this object?
*
* @return array of Actors
*/
public function getNotificationTargets(array $ids_already_known = [], ?int $sender_id = null): array
{
$target_ids = $this->getNotificationTargetIds($ids_already_known, $sender_id);
return $target_ids === [] ? [] : DB::findBy('actor', ['id' => $target_ids]);
}
}