====== MongoEngine ======
===== Updates =====

Masive update:
<code python>
GameServer.objects(ip=ip).update(set__status=Server_status.STATUS_RUNNING)
</code>

===== Queries =====
==== Nested fileds ====

You can use the double underscore:
<code>
Tournament.objects.filter(type__num_players=2)
</code>
Or raw queries:
<code>
Tournament.objects.filter(__raw__={'type.num_players': 2})
TournamentConfig.objects.filter(__raw__={'$where': 'this.type.num_players * this.type.num_teams == 4'})
</code>

==== Listas ====

Hacer queries con embedded objects:

<code python>
gardens_with_flower0  = Garden.objects(flowers=flower0)
gardens_with_flower0_or_flower1  = Garden.objects(flowers__in=[flower0, flower1])
gardens_with_flower0_and_flower1  = Garden.objects(flowers__all=[flower0, flower1])
</code>

===== Order by =====
Añadiend ''-'' sería ordenar descendentemente:
<code python>
people = Person.objects.order_by('last_name', '-age')
</code>