Querying last 30 days date range with Mongoid and Ruby?
Here's how to do it all in rubyland:
sales_by_date = Hash.new(0)Sale.where(:created_at.gte => (Date.today - 30)).order_by(:created_at, :desc).each do |s| sales_by_date[s.created_at.strftime("%m-%d")] += 1endThis will create a hash with "month-day" keys, reason is that some months have fewer than 30 days and will result in a key collision if the query is always 30.
If you want a different range, change the query:
# Between 10 and 20 days agostart_day = 10end_day = 20Sale.where(:created_at.gte => (Date.today - end_day), :created_at.lte => (Date.today - start_day))Change created_at to whatever the name of your datetime field is.