Hi,

Holger, thank you, I will try your suggestion.��

However, I use MongoDB 3.4, and I think that Voyage has support for only versions under 3.0. Am I right?

Stef, collection in mongo is a container for documents. For example, here three documents are inserted in collection "inventory":

db.inventory.insertMany([

�� { item: "journal", qty: 25, tags: ["blank", "red"], size: { h: 14, w: 21, uom: "cm" } },

�� { item: "mat", qty: 85, tags: ["gray"], size: { h: 27.9, w: 35.5, uom: "cm" } },

�� { item: "mousepad", qty: 25, tags: ["gel", "blue"], size: { h: 19, w: 22.85, uom: "cm" } }

])

https://docs.mongodb.com/manual/tutorial/insert-documents/

Mark

2017-04-30 10:37 GMT+02:00 Stephane Ducasse <stepharo.self@gmail.com>:

mark��

what is such collection?

Stef

On Fri, Apr 28, 2017 at 11:04 PM, Holger Freyther <holger@freyther.de> wrote:

> On 28. Apr 2017, at 14:27, Mark Rizun <mrizun@gmail.com> wrote:
>
> Hi,

Hi!

> Is it possible to retrieve data from Mongo collection if it was not created
> via Voyage?
> Meaning that I do not have a class in Pharo that would correspond to said
> collection (should I implement one?).

Yes. But you probably need to customize a bit.

1.) Make sure you refer to the right collection...

descriptionContainer
�� <mongoContainer>
�� ^VOMongoContainer new
�� collectionName: 'yourExistingCollectionName'
�� yourself

2.) For materialization.. you should at least have
�� _id (okay every entry does that)
�� VOMongoSerializer fieldVersion (#version on my old Voyage)
�� VOMongoSerializer fieldType (#instanceOf)

and then things should work out. You can probably add #version and #instanceOf to your existing objects?

holger