oops, is
{ "number_field": { $gt: 42 } }
but well, you got the idea :)
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.
>>>>
>>>>
>>>>
>>>
>>
>>
>
