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kotlinlang

*KtMongo 0.8.0 is out*, which adds support for simple aggregation pipelines!

Aggregation pipelines allow querying data in more complex ways than regular request. At the moment, few stages are supported, don't hesitate to request new ones.
```collection.aggregate()
    .match { User::role eq Role.Player }
    .skip(30)
    .limit(20)
    .toList()```
In this version, KtMongo also gains support for update pipelines, allowing to use some pipeline operations to update data:
```collection.updateManyWithPipeline {
    set {
        User::isPlayer set (of(User::role) eq of(Role.Player))
    }
}```
Additionally, this documentation adds a dedicated documentation page to <https://opensavvy.gitlab.io/ktmongo/docs/features/filtered-collections.html|filtered operators>:
```collection.find {
    Invoice::paidAt gteNotNull criteria.minPaidAt
}```
as well as <https://opensavvy.gitlab.io/ktmongo/docs/features/filtered-collections.html|filtered collections>, which are convenient for logical deletion:
```val drafts = collection.filter {
    Invoice::status eq Status.Draft
}

drafts.find()
drafts.updateMany { Draft::age inc 1 }```
<https://opensavvy.gitlab.io/ktmongo/docs>