discourse/app/models/reports/dau_by_mau.rb

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Report.add_report("dau_by_mau") do |report|
report.labels = [
{
type: :date,
property: :x,
title: I18n.t("reports.default.labels.day")
},
{
type: :percent,
property: :y,
title: I18n.t("reports.default.labels.percent")
},
]
report.average = true
report.percent = true
data_points = UserVisit.count_by_active_users(report.start_date, report.end_date)
report.data = []
compute_dau_by_mau = Proc.new { |data_point|
if data_point["mau"] == 0
0
else
((data_point["dau"].to_f / data_point["mau"].to_f) * 100).ceil(2)
end
}
dau_avg = Proc.new { |start_date, end_date|
data_points = UserVisit.count_by_active_users(start_date, end_date)
if !data_points.empty?
sum = data_points.sum { |data_point| compute_dau_by_mau.call(data_point) }
(sum.to_f / data_points.count.to_f).ceil(2)
end
}
data_points.each do |data_point|
report.data << { x: data_point["date"], y: compute_dau_by_mau.call(data_point) }
end
if report.facets.include?(:prev_period)
report.prev_period = dau_avg.call(report.prev_start_date, report.prev_end_date)
end
if report.facets.include?(:prev30Days)
report.prev30Days = dau_avg.call(report.start_date - 30.days, report.start_date)
end
end