Mongo Go Models(mgm) relation implements has-one,has-many relations for the Mongo Go Models (mgm) package.

Hooks

• Syncing () error : calls before sync. if return error, ew cancel sync and return that error to the caller.
• Synced () error : calls after sync. if return error, we return that error to the caller.

Important Notes:

• This package use Mongo Go Models native methods, so you can not expect to have behavior of mgn (like set ID on the model, or update created_at,updated_at fields...).
  You can write your sync hooks or use default mgm-relation implementation of sync hooks to handle it.

TODO

• We can also automatically set the foreign key field on each model before saving it. implement it if you need(find foreign key field on the related model by bson tag's value).