On Jul 6, 2013, at 11:16 AM, Esteban Lorenzano <esteba...@gmail.com> wrote:
> sure :) > > I will add a blog post on "voyage advanced queries" too :) too if you want but we could also focus on the chapter because we can be multiple people to edit it while your blog you are alone. Stef > > Esteban > > On Jul 6, 2013, at 10:52 AM, Stéphane Ducasse <stephane.duca...@inria.fr> > wrote: > >> esteban could you take some time to add this information to the Voyage >> chapter? >> >> https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/ >> >> add the information in any format and I can make it run. >> >> https://github.com/SquareBracketAssociates/PharoForTheEnterprise-english >> >> Stef >> >> >> >> On Jul 4, 2013, at 7:49 PM, Esteban Lorenzano <esteba...@gmail.com> wrote: >> >>> you have different constructions: >>> >>> { $gt: { "number_field": 42 } } >>> >>> and so on... always with dictionaries (bah, json structs). >>> >>> as a query language it kinda sucks... but well... is how it is :) >>> >>> On Jul 4, 2013, at 7:34 PM, Stéphane Ducasse <stephane.duca...@inria.fr> >>> wrote: >>> >>>> Ok but how do I map conceptual a query to a dictionary >>>> >>>> Do I guess right that there is an exact match >>>> >>>> selectOne: { id -> 10} asDictionary >>>> >>>> will match id = 10 >>>> >>>> Now we can only do exact mathc? >>>> >>>> name matches: 'stef*' >>>> >>>> >>>> On Jul 4, 2013, at 6:04 PM, Esteban A. Maringolo <emaring...@gmail.com> >>>> wrote: >>>> >>>>> Stef, >>>>> >>>>> You're asking the other Esteban, but having used Voyage and Mongo I >>>>> think I can answer this. >>>>> >>>>> Mongo receives a JSON object to do all the query filtering. For a >>>>> simple lookup it is has a simple structre, as the query gets more >>>>> complex it gets esoteric as well (with "special" MongoDB keys in the >>>>> format of "$key"). >>>>> >>>>> Because the simplest map we have to a JSON Object is the Dictionary, I >>>>> guess that's why it ends up being converted to a Dictionary, which in >>>>> turn gets converted to JSON and/or BSON. >>>>> >>>>> Regards, >>>>> >>>>> Esteban A. Maringolo >>>>> >>>>> >>>>> 2013/7/4 Stéphane Ducasse <stephane.duca...@inria.fr>: >>>>>> >>>>>> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <esteba...@gmail.com> >>>>>> wrote: >>>>>> >>>>>> Hi :) >>>>>> >>>>>> can you check if you have the "MongoQueries" package installed? >>>>>> >>>>>> cheers, >>>>>> Esteban >>>>>> >>>>>> ps: please notice that in anycase you will not be able to execute >>>>>> >>>>>> [ :each | each name first = $X ] >>>>>> >>>>>> because the MongoQueries package just translates the block into a >>>>>> mongo-query which is a dictionary (a JSON expression). But you will found >>>>>> some ways to help you, some special keywords like #in: and #where: (you >>>>>> can >>>>>> see how they work in the tests) >>>>>> >>>>>> >>>>>> esteban >>>>>> how a dictionary is used to work as a block for a query? >>>>>> Can you explain because I would have thought that the first line did not >>>>>> work and the second would work. >>>>>> >>>>>> Stef >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Jul 4, 2013, at 2:17 PM, Bernat Romagosa >>>>>> <tibabenfortlapala...@gmail.com> >>>>>> wrote: >>>>>> >>>>>> Hi! >>>>>> >>>>>> I realize probably only Esteban will be able to answer, but I prefer to >>>>>> write to the list so the mail is logged and other people can benefit from >>>>>> it. >>>>>> >>>>>> I'm trying to use blocks as arguments for #selectOne: and #selectMany:, >>>>>> but >>>>>> it doesn't seem to work. Here's my code: >>>>>> >>>>>> MyClass selectOne: { #name -> 'Some name' } asDictionary. >>>>>> MyClass selectOne: [ :each | each name = 'Some name' ]. >>>>>> >>>>>> >>>>>> The first one works, but the second one raises a VOMongoConnectionError. >>>>>> >>>>>> Also: >>>>>> >>>>>> MyClass selectMany: { #name -> 'Some name' } asDictionary. >>>>>> MyClass selectMany: [ :each | each name = 'Some name' ]. >>>>>> >>>>>> >>>>>> The first does work, the second one doesn't, which prevents me from >>>>>> writing >>>>>> more useful stuff like: >>>>>> >>>>>> MyClass selectMany: [ :each | each name first = $P ]. >>>>>> >>>>>> Any idea why this could be failing? I've the latest stable version loaded >>>>>> via: >>>>>> >>>>>> Gofer it >>>>>> url: 'http://smalltalkhub.com/mc/estebanlm/Voyage/main'; >>>>>> package: 'ConfigurationOfVoyageMongo'; >>>>>> load. >>>>>> (Smalltalk at: #ConfigurationOfVoyageMongo) load. >>>>>> >>>>>> Thanks! :) >>>>>> >>>>>> Bernat. >>>>>> >>>>>> -- >>>>>> Bernat Romagosa. >>>>>> >>>>>> >>>>>> >>>>> >>>> >>>> >>> >>> >> >> > >
