master ← KrisKotlarek:fix-multisite-resore-db-name
merged 06:23AM - 23 Oct 19 UTC
Simplified flow of restore is like that
```
migrate_database
reconnect
extra…ct_uploads
```
Problem with incorrect current database started with this fix https://github.com/discourse/discourse/commit/025d4ee91f4
Dump task is reconnecting to default database https://github.com/rails/rails/blob/master/activerecord/lib/active_record/railties/databases.rake#L429
And then, we are trying to reconnect to the original database with that code:
```
def reconnect_database
log "Reconnecting to the database..."
RailsMultisite::ConnectionManagement::establish_connection(db: @current_db)
end
```
This reconnect is not switching us back to correct database because of that check
https://github.com/discourse/rails_multisite/blob/master/lib/rails_multisite/connection_management.rb#L181
Basically, it finds existing handler and it thinks that we are connected to correct DB and this step can be skipped.
To solve it, we can reload RailsMultisite::ConnectionManagement which creates a new instance of that class
https://github.com/discourse/rails_multisite/blob/master/lib/rails_multisite/connection_management.rb#L38
Meta: https://meta.discourse.org/t/multisite-restores-uploads-to-default-instead-of-actual-db-name/130778
