Smalltalk - Re: Saving Moose model in MongoDB

Re: Saving Moose model in MongoDB

Posted by tinchodias on Sep 17, 2019; 3:52pm
URL: https://forum.world.st/Saving-Moose-model-in-MongoDB-tp5103872p5103973.html

On Mon, Sep 16, 2019 at 5:02 PM Stéphane Ducasse
<[hidden email]> wrote:

>
> This is not clear to me.
> you can save a model in Ston or other
> and you can query it in Moose.
>
> What are the size of your models because you can load them all and query them.
>
>
> to save it outside the image :)
>
>
> But that you can do it in MSE, STON (with one line), Fuel,

~2011 we created a Fuel exporter/importer for Moose models, which was
available for some versions (I think was removed later because of a
bug with huge files that couldn't fix). If I remember well, all the
effort was in customizations to avoid serializing generated/derivative
objects that could be regenerated on materialization. But no problem
with circular references in the object graph. Now I have no idea how
different could it be with the new Moose.

Regards,
Martín

>
>
> --
> ~~Jannik Laval~~
> Enseignant-chercheur
> Responsable Pédagogique Licence Coordonnateur de Projet
> IUT Lumière, Université Lumière Lyon 2
> laboratoire DISP
> +33 4 78 77 43 06
> http://www.jannik-laval.eu
> http://www.phratch.com
> http://www.approchealpes.info
>
> Le 16 sept. 2019 à 18:18, Anne Etien <[hidden email]> a écrit :
>
> But you can query a model with MooseQuery. Why do you need something else?
>
> Anne
>
> Le 16 sept. 2019 à 18:04, Jannik Laval <[hidden email]> a écrit :
>
> In fact, I need to save models and query them.
> I think we can do it with Gemstone. But I thought we can have something similar with MongoDB.
>
> In fact, the point is « how to identify circular references » to avoid infinite loop in Voyage ?
>
> Cheers
> --
> ~~Jannik Laval~~
> Enseignant-chercheur
> Responsable Pédagogique Licence Coordonnateur de Projet
> IUT Lumière, Université Lumière Lyon 2
> laboratoire DISP
> +33 4 78 77 43 06
> http://www.jannik-laval.eu
> http://www.phratch.com
> http://www.approchealpes.info
>
> Le 16 sept. 2019 à 17:24, Stéphane Ducasse <[hidden email]> a écrit :
>
> I’m confused by what you want to do but you can try ston.
>
> Stef
>
> On 16 Sep 2019, at 16:58, Jannik Laval <[hidden email]> wrote:
>
> The idea is to use it at runtime. So need to make queries.
> But the idea of MSE serialization is good.
>
> Now I don’t know how we can manage the serialization strategy of MSE with the one of Voyage…
>
> --
> ~~Jannik Laval~~
> Enseignant-chercheur
> Responsable Pédagogique Licence Coordonnateur de Projet
> IUT Lumière, Université Lumière Lyon 2
> laboratoire DISP
> +33 4 78 77 43 06
> http://www.jannik-laval.eu
> http://www.phratch.com
> http://www.approchealpes.info
>
> Le 16 sept. 2019 à 16:46, Nicolas Anquetil <[hidden email]> a écrit :
>
>
> Hi,
>
> what is the goal?
>
> if it is only a backup store (to later retreive the entire model), you
> could try something similar to the MSE serialization (done with a
> visitor).
> So it would be a 1 level tree
>
> nicolas
>
> On Mon, 2019-09-16 at 15:22 +0200, Jannik Laval wrote:
>
> Hi everyone,
>
> I am trying to save a moose model into MongoDB, using Voyage (Pharo
> 7, Moose 8).
> My problem is that it is not a tree. So I declared MooseEntity as
> voyageRoot.
>
> Now, it seems I have a loop into my graph.
> Do you have any idea of ho to debug that ?
>
> Cheers,
> --
> ~~Jannik Laval~~
> Enseignant-chercheur
> Responsable Pédagogique Licence Coordonnateur de Projet
> IUT Lumière, Université Lumière Lyon 2
> laboratoire DISP
> +33 4 78 77 43 06
> http://www.jannik-laval.eu
> http://www.phratch.com
> http://www.approchealpes.info
>
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> --
> Nicolas Anquetil
> RMod team -- Inria Lille
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> --------------------------------------------
> Stéphane Ducasse
> http://stephane.ducasse.free.fr
> http://www.synectique.eu / http://www.pharo.org
> 03 59 35 87 52
> Assistant: Julie Jonas
> FAX 03 59 57 78 50
> TEL 03 59 35 86 16
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>
> --------------------------------------------
> Stéphane Ducasse
> http://stephane.ducasse.free.fr
> http://www.synectique.eu / http://www.pharo.org
> 03 59 35 87 52
> Assistant: Julie Jonas
> FAX 03 59 57 78 50
> TEL 03 59 35 86 16
> S. Ducasse - Inria
> 40, avenue Halley,
> Parc Scientifique de la Haute Borne, Bât.A, Park Plaza
> Villeneuve d'Ascq 59650
> France
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.list.inf.unibe.ch/listinfo/moose-dev

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