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activerecord

GROUP BY and COUNT using ActiveRecord

Distinct and Group By are going to give you different results. To get the results you expect you’ll want to use Seen above, group will return things as a hash. While distinct just returns the number of people in total, seen below.

Categories SQL Tags activerecord, postgresql, ruby, ruby-on-rails, sql

Advanced AREL or just Rails Query for has_many through search by association

Given I have two star players named “Lisa” and “Bo”, how would would I search the Team Model to find all the teams that have both Lisa and Bo on them, without looping through. All the has_many through query examples assume I’m only looking for the teams by one association attribute. But I want to … Read more

Categories Uncategorized Tags activerecord, arel, has-many-through, ruby-on-rails

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