Revert node.config.php into Config table

src/Core/Config/Model/DatabaseConfig.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace Friendica\Core\Config\Model;
+
+use Friendica\Core\Config\Capability\IManageConfigValues;
+use Friendica\Core\Config\Capability\ISetConfigValuesTransactionally;
+use Friendica\Core\Config\Util\SerializeUtil;
+use Friendica\Core\Config\ValueObject\Cache;
+use Friendica\Database\Database;
+
+/**
+ * Complete system configuration model, bound with the database
+ */
+class DatabaseConfig implements IManageConfigValues
+{
+	/** @var Database */
+	protected $database;
+	/** @var Cache */
+	protected $cache;
+
+	public function __construct(Database $database, Cache $cache)
+	{
+		$this->database = $database;
+		$this->cache    = $cache;
+
+		$this->reload();
+	}
+
+	/** {@inheritDoc} */
+	public function reload()
+	{
+		$config = $this->database->selectToArray('config');
+
+		foreach ($config as $entry) {
+			$this->cache->set($entry['cat'], $entry['k'], SerializeUtil::maybeUnserialize($entry['v']), Cache::SOURCE_DATA);
+		}
+	}
+
+	public function setAndSave(Cache $setCache, Cache $delCache): bool
+	{
+		$this->database->transaction();
+
+		foreach ($setCache->getAll() as $category => $data) {
+			foreach ($data as $key => $value) {
+				$this->cache->set($category, $key, $value, Cache::SOURCE_DATA);
+				$this->database->insert('config', ['cat' => $category, 'k' => $key, 'v' => serialize($value)], Database::INSERT_UPDATE);
+			}
+		}
+
+		foreach ($delCache->getAll() as $category => $keys) {
+			foreach ($keys as $key => $value) {
+				$this->cache->delete($category, $key);
+				$this->database->delete('config', ['cat' => $category, 'k' => $key]);
+			}
+		}
+
+		return $this->database->commit();
+	}
+
+	/** {@inheritDoc} */
+	public function get(string $cat, string $key = null, $default_value = null)
+	{
+		return $this->cache->get($cat, $key) ?? $default_value;
+	}
+
+	/** {@inheritDoc} */
+	public function set(string $cat, string $key, $value): bool
+	{
+		$this->cache->set($cat, $key, $value, Cache::SOURCE_DATA);
+		return $this->database->insert('config', ['cat' => $cat, 'k' => $key, 'v' => serialize($value)], Database::INSERT_UPDATE);
+	}
+
+	/** {@inheritDoc} */
+	public function beginTransaction(): ISetConfigValuesTransactionally
+	{
+		return new ConfigTransaction($this);
+	}
+
+	/** {@inheritDoc} */
+	public function delete(string $cat, string $key): bool
+	{
+		$this->cache->delete($cat, $key);
+		return $this->database->delete('config', ['cat' => $cat, 'k' => $key]);
+	}
+
+	/** {@inheritDoc} */
+	public function getCache(): Cache
+	{
+		return $this->cache;
+	}
+}