João Daniel

Belo Horizonte, Brazil

linkedin.com/in/jdanielnd

Age: 24

I'm a BA statistic's student at UFMG (Brasil), and co-founder at Tecto - a startup in the data analysis field. I've experience in programming (C, Java, HTML, CSS, Ruby, RoR) and data analysis.

Apr
24
awarded Yearling
Apr
24
awarded Autobiographer
Apr
23
awarded Notable Question
Mar
17
comment Get unsaved associations from inside the model
Actually is not that comments return just persisted comments. Is that when I call any method that touches the database, such as pluck, it ignores the unpersisted comments. So I must avoid ActiveRecord methods to deal with that objects.
Mar
17
asked Get unsaved associations from inside the model
Mar
17
awarded Popular Question
Mar
13
awarded Notable Question
Feb
27
awarded Nice Question
Feb
27
comment C++ compiling error while compiling R package on Winbuild
I think I had solve this problem before but some how I lost those files. Maybe they were not on git. Thanks Dirk! :)
Feb
27
accepted C++ compiling error while compiling R package on Winbuild
Feb
26
asked C++ compiling error while compiling R package on Winbuild
Feb
9
awarded Custodian
Feb
9
reviewed Approve suggested edit on Swapping fadein with slide horizontally in jquery
Feb
9
reviewed Approve suggested edit on Error installing Ruby in Rails in Maverick
Dec
13
awarded Yearling
Nov
20
comment how to check if the number is integer?
I think there is a confusion about mathematical and computational concepts of integer. The function is.integer checks the computational concept, the check.integer user function checks the mathematical point of view.
Nov
18
comment Reduce number of queries in ActiveRecord call
Actually there is no code.. As I said AtomType has many Atoms. It's just a relationship collections. It returns all atoms that belongs to that instance of AtomType.
Nov
18
comment Reduce number of queries in ActiveRecord call
It's actually (or also) self.atoms :)
Nov
18
comment Reduce number of queries in ActiveRecord call
It is, because when I pluck the id from atoms, that atoms belongs to the same AtomType. It's calling a relationship collection from an AtomType instance :)
Nov
18
answered Reduce number of queries in ActiveRecord call
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