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Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Esteban Lorenzano

and btw, AFAIK MongoQueries does not have support for regexp, but would be easy to extend them to support it, something like: [ :each | each name regexpMatch: '^P*' options: 'i' ] which is of course more expressive than the dictionary :) Esteban On Jul 4, 2013, at 8:29 PM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > you also have regexp expressions (and I think they are better than the where clause): > > { > #name -> { > '$regex' -> '^P*'. > '$options' -> 'i' > } asDictionary > } asDictionary > > there is no support for it with MongoQueries, but they work fine with dictionaries :) > > Esteban > > On Jul 4, 2013, at 7:36 PM, Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> wrote: > >> For other kinds of matches, you need javascript queries, if I understood: >> >> User selectOne: [ :each | each where: 'this.name[0] == "s"' ] >> >> Right? >> >> >> 2013/7/4 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> 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 <emaringolo(a)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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: >> >> >> >> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 <tibabenfortlapalanca(a)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. >> >> >> >> >> >> >> > >> >> >> >> >> >> -- >> Bernat Romagosa. >

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Bernat Romagosa

Good to know! 2013/7/4 Esteban Lorenzano <estebanlm(a)gmail.com> > you also have regexp expressions (and I think they are better than the > where clause): > > { > #name -> { > '$regex' -> '^P*'. > '$options' -> 'i' > } asDictionary > } asDictionary > > there is no support for it with MongoQueries, but they work fine with > dictionaries :) > > Esteban > > On Jul 4, 2013, at 7:36 PM, Bernat Romagosa < > tibabenfortlapalanca(a)gmail.com> wrote: > > For other kinds of matches, you need javascript queries, if I understood: > > User selectOne: [ :each | each where: 'this.name[0] == "s"' ] > > Right? > > > 2013/7/4 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > >> 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 <emaringolo(a)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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: >> >> >> >> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 < >> tibabenfortlapalanca(a)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. >> >> >> >> >> >> >> > >> >> >> > > > -- > Bernat Romagosa. > > > -- Bernat Romagosa.

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Esteban Lorenzano

you also have regexp expressions (and I think they are better than the where clause): { #name -> { '$regex' -> '^P*'. '$options' -> 'i' } asDictionary } asDictionary there is no support for it with MongoQueries, but they work fine with dictionaries :) Esteban On Jul 4, 2013, at 7:36 PM, Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> wrote: > For other kinds of matches, you need javascript queries, if I understood: > > User selectOne: [ :each | each where: 'this.name[0] == "s"' ] > > Right? > > > 2013/7/4 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > 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 <emaringolo(a)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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > >> > >> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 <tibabenfortlapalanca(a)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. > >> > >> > >> > > > > > > > > -- > Bernat Romagosa.

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Esteban A. Maringolo

2013/7/4 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com>: > For other kinds of matches, you need javascript queries, if I understood: > > User selectOne: [ :each | each where: 'this.name[0] == "s"' ] > > Right? Just as a side note. Beware of the "$where" filter (it is: { "$where": this.that == 's' }), it deserializes the BSON for every value, converts it to the JavaScript object and then performs the comparison, it is not efficient in any way. There are lots of ways to perform the query using built-in operators instead of $where. (*) (*) Disclaimer: None of it is pretty in any way. Actually they're ugly. It's like specifiying an SQL WHERE statement with dictionaries, or worst, an Excel formula with Dictionaries. Having some sort of "intelligence" from the Smalltalk side converting comparison operators to their MongoDB counterparts is really useful. Regards,

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Esteban Lorenzano

oops, is { "number_field": { $gt: 42 } } but well, you got the idea :) On Jul 4, 2013, at 7:49 PM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > you have different constructions: > > { $gt: { "number_field": 42 } } > > and so on... always with dictionaries (bah, json structs). > > as a query language it kinda sucks... but well... is how it is :) > > On Jul 4, 2013, at 7:34 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > >> Ok but how do I map conceptual a query to a dictionary >> >> Do I guess right that there is an exact match >> >> selectOne: { id -> 10} asDictionary >> >> will match id = 10 >> >> Now we can only do exact mathc? >> >> name matches: 'stef*' >> >> >> On Jul 4, 2013, at 6:04 PM, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: >> >>> Stef, >>> >>> You're asking the other Esteban, but having used Voyage and Mongo I >>> think I can answer this. >>> >>> Mongo receives a JSON object to do all the query filtering. For a >>> simple lookup it is has a simple structre, as the query gets more >>> complex it gets esoteric as well (with "special" MongoDB keys in the >>> format of "$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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: >>>> >>>> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 <tibabenfortlapalanca(a)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. >>>> >>>> >>>> >>> >> >> >

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Esteban Lorenzano

you have different constructions: { $gt: { "number_field": 42 } } and so on... always with dictionaries (bah, json structs). as a query language it kinda sucks... but well... is how it is :) On Jul 4, 2013, at 7:34 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Ok but how do I map conceptual a query to a dictionary > > Do I guess right that there is an exact match > > selectOne: { id -> 10} asDictionary > > will match id = 10 > > Now we can only do exact mathc? > > name matches: 'stef*' > > > On Jul 4, 2013, at 6:04 PM, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > >> Stef, >> >> You're asking the other Esteban, but having used Voyage and Mongo I >> think I can answer this. >> >> Mongo receives a JSON object to do all the query filtering. For a >> simple lookup it is has a simple structre, as the query gets more >> complex it gets esoteric as well (with "special" MongoDB keys in the >> format of "$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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: >>> >>> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 <tibabenfortlapalanca(a)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. >>> >>> >>> >> > >

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by Bernat Romagosa

For other kinds of matches, you need javascript queries, if I understood: User selectOne: [ :each | each where: 'this.name[0] == "s"' ] Right? 2013/7/4 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > 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 <emaringolo(a)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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > >> > >> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 < > tibabenfortlapalanca(a)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. > >> > >> > >> > > > > > -- Bernat Romagosa.

July 4, 2013

Re: [Pharo-users] [Voyage] #selectOne: and #selectMany: with a block as the argument

by StÃ©phane Ducasse

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 <emaringolo(a)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 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: >> >> On Jul 4, 2013, at 2:58 PM, Esteban Lorenzano <estebanlm(a)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 <tibabenfortlapalanca(a)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. >> >> >> >

July 4, 2013

Re: [Pharo-users] Convert 'Ã¨' to 'e'

by Hilaire Fernandes

Yes, but sorry I forgot it was a long time ago for a seaside application, in a previous life. But digging a bit you should find, may be in the String methods. Hilaire Le 04/07/2013 17:24, Davide Varvello a Ã©crit : > Hi there, > Is there any method to convert an accented char (or string) to the not > accented one? > > I.e from 'Ã Ã©Ã¬Ã²Ã¼' to 'aeiou' > > Thanks > Davide > > > > -- > View this message in context: http://forum.world.st/Convert-e-to-e-tp4697373.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > -- Dr. Geo http://drgeo.eu

July 4, 2013

Re: [Pharo-users] Convert 'Ã¨' to 'e'

by Davide Varvello

Thanks guys, I'll look at the ICU library and DiacriticSupport. Cheers Davide -- View this message in context: http://forum.world.st/Convert-e-to-e-tp4697373p4697407.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

July 4, 2013