In this folder called `my_backup` I have a **mongodb database dump** with all my **models/collections** for example:

```
admins.bson
admins.metadata.json
categories.bson
categories.metadata.json
pages.bson
pages.metadata.json
.
.
.

```

I have a database called `ubuntu_development` on mongodb. I am working with `rails 3 + mongoid`

**How can I import/restore all models/collections from the folder `my_backup` to my database `ubuntu_development`**

Thank you very much!