Question

I want to create a method for my Activity model that has many Practices called month_days_not_practiced which gives a count of the days in the current month that the Activity does not have any practices recorded for (note: days_in_month is a helper method):

  def month_days_not_practiced(date = Date.today)
    p = practices.where(:created_at => date.at_beginning_of_month..date.at_end_of_month).count
    days_in_month - p
  end

However, I want to return only one record per month day.

Can someone help me with my custom SQL (I think) please? I’m drawing a blank at the moment..

TIA!

Andy

Answer 1

Put this on the end of your query:

.group("DATE(created_at)")