Ruby on Rails: Populate view based on database column values

Question

I'm planning on making a table in my view that is a summary of the data I've collected in my database.

For example, what I want to do is count how many times '1' is the response for gender, and display that count. I've had trouble making counters in Ruby before, so I wanted to find out how I should do this before I shoot myself in the foot.

I can imagine there is a database function call that sums the the column - but do I perform this action in my view? Or is it something a bit more tricky related to the MVC.

Thank you for your time.

In terms of the MVC Part. Don't do the calculation in the view. Do the calculation in the model or a service class/object and then pass the result to your view. — johnsorrentino
– johnsorrentino, Commented Nov 24, 2014 at 23:54

Francesco Bovoli · Accepted Answer · 2014-11-24 23:05:10Z

1

How about ActiveRecord::Calculations ? For example Gender.calculate(:count, :all)

See: http://api.rubyonrails.org/classes/ActiveRecord/Calculations.html

answered Nov 24, 2014 at 23:05

Francesco Bovoli

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