Store session in DB

[xtrime-ru]

Refactor storage mechanism. Add ability to store properties in mysql. Reduce ram consumption.

[xtrime-ru]

@danog Can you review this PR?

[andrew-ld]

ora daniil sara obbligato a ficcare mysql

[andrew-ld]

https://www.youtube.com/watch?v=8YMpDboM-NA

[xtrime-ru]

ora daniil sara obbligato a ficcare mysql

There is not many options to chose. Only mysql and redis have async drivers in amp. And i don't like redis :)

But its easy to write adapter for redis later.

[xtrime-ru]

Docs PR: danog/MadelineProtoDocs#18

[xtrime-ru]

danog/MadelineProtoDocs#19

[svdaru]

Are there plans to add support of postgres? amp supports it https://github.com/amphp/postgres

[xtrime-ru]

Are there plans to add support of postgres? amp supports it https://github.com/amphp/postgres

I have no plans to add any other db. But it's not hard to add another provider in your pull request:

1. Create similar data type: \danog\MadelineProto\Db\MysqlArray
2. Create new connection like this: \danog\MadelineProto\Db\Mysql
3. Use new connection inside new data type
4. And add reference to new data type here: \danog\MadelineProto\Db\DbPropertiesFabric::get
5. Add default settings here: src/danog/MadelineProto/MTProto.php:1349
6. Use new storage type in settings