Hi Sabine, thank you for your observations, interesting pointers and offer for help! I will integrate as much as possible and your comments are certainly welcome!
I am not so knowledgeable about data migration, I understand what you are saying but I have no deep insights. I will add something about data migration to the documentation but I think it will be brief. Greetings, On Nov 21, 2013, at 6:16 AM, Sabine Knöfel <sabine.knoe...@gmail.com> wrote: > Hi Johan, > > I use MongoDB and voyage for www.spesenfuchs.de and it works fine for me. > > My remarks: > > 1) you could also add VOMongoTransientDescription (see class comment) and > VOMongoToManyDescription to chapter "enhancing storage". > > 2) "VORepository current reset" is imo important to know. As far as I > understand, it forces to reload all objects from database. I need this after > changing the VOMongo....Descriptions. > > 3) I like the possibility to have a look into the values in the database. For > this, there are 2 very useful tools: http://rockmongo.com/ for windows and > http://robomongo.org/ for mac. I recommend to use it. Helps a lot. > > 4) I think as far as you start to implement a real app, you need this > solution to implement circular references > http://forum.world.st/Voyage-Circular-references-td4691940.html#a4703493 > > 5) another not so important point > http://forum.world.st/your-opinion-about-storing-FixedDecimal-in-Mongo-td4704104.html#a4704127 > > 6) I think you do also know: > http://esug.org/data/ESUG2013/4-Thu/03-ESUG2013%20-%20VoyageTutorial.pdf > http://smallworks.com.ar/web/blog > > 7) Last point, you could add some words/thoughts about data migration: what > do I mean with this? Today, my model is as it is. My app runs. Data is > generated in MongoDB. But after e.g. one month, I decide to change my model. > Now, there are 2 possibilities: migrate all data while installing the new > version or some kind of "lazy" migration at the moment, the object is loaded > from mongo (I do this within the magritte description). Both has advantages > and disadvantages and depends on the situation. I am interested in other > opinions and solutions for this. > > If I can contribute more please tell me. > > Regards > Sabine > ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile
