ruby - Rails Iteration by month given range of dates -

i'm trying follow railscast , create morris.js line chart enquiry model.

i've grouped counts using date_trunc months, i'm not quite sure @ how x-axis iterate on months (e.g jun 2012, jul 2013) opposed date in railscasts notes.

i've tried range#step method here, graph displays 1 date (2012-07-01) without count , nothing else. commenting out .step(1.month) method range variable , graph works fine x-axis iterates date.

class enquiry < activerecord::base        def self.chart_data(start = 1.year.ago)     total_count = total_count_by_month(start)     start = start.to_date.beginning_of_month     today = date.today.beginning_of_month     range = (start..today).step(1.month)        range.map |month|         {           created_at: month,           total_enquiries: total_count[] || 0       }     end   end    def self.total_count_by_month(start)     enquiries = unscoped.where(created_at: start.beginning_of_month..time.now)     enquiries = enquiries.group("date_trunc('month', created_at)")     enquiries = enquiries.select("date_trunc('month', created_at) created_at, count(*) count")     enquiries.each_with_object({}) |enquiry, counts|       counts[enquiry.created_at.to_date] = enquiry.count     end   end end 

how chart's x-axis iterate months (jun 2013, jul 2013 ....) instead of dates?

for else facing same problem, solution outlined below:

def self.chart_data(start = 1.year.ago)     total_count = total_count_by_month(start)      ##############################################     start = start.to_date.beginning_of_month     today = date.today.beginning_of_month     range = (start..today).select {|d| d.day == 1}     ##############################################      range.map |month|         {           created_at: month,           total_enquiries: total_count[] || 0       }     end   end 

the chart's x-axis iterates month.

the solution found here.

i'm still looking solutions on how chart dates might display (%b %y) opposed current format of (yyyy-mm-dd).