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Contents
module MetricsHelper
def summary_headers(summary)
if summary.action == "count"
[summary.group_by_key, summary.action]
else
[summary.group_by_key, summary.action, 'Amount']
end
end
def summary_results(summary, results)
response = []
headers = results[0]
summary_key = summary.group_by_key.capitalize.gsub("_"," ")
summary_index = headers.index(summary_key)
if summary.action_on.present?
summary_action_on = summary.action_on.capitalize.gsub("_"," ")
summary_action_on_index = headers.index(summary_action_on)
end
summary_results = results.map{|x| x[summary_index]}.uniq.sort - [summary_key]
case summary.action
when 'count'
summary_results.each do |s|
response << {:key => s, :count => results.count{|x| x[summary_index] == s }}
end
when 'sum'
summary_results.each do |s|
response << {:key => s, :count => results.count{|x| x[summary_index] == s }, :sum => results.select{|x| x[summary_index] == s }.sum{|x| x[summary_action_on_index].to_f }}
end
when 'average'
summary_results.each do |s|
response << {:key => s, :count => results.count{|x| x[summary_index] == s }, :average => results.select{|x| x[summary_index] == s }.sum{|x| x[summary_action_on_index].to_f } / results.count{|x| x[summary_index] == s }}
end
when 'median'
summary_results.each do |s|
response << {:key => s, :count => results.count{|x| x[summary_index] == s }, :median => median(results.select{|x| x[summary_index] == s }.map{|x| x[summary_action_on_index].to_f })}
end
else
raise "#{summary.action.capitalize} is not defined, please define it in metrics_helper.rb"
end
return response
end
end
Version data entries
11 entries across 11 versions & 1 rubygems