55 lines
1.6 KiB
Ruby
55 lines
1.6 KiB
Ruby
class Statistics < Rails::Application
|
|
def shameful_users
|
|
User.humans
|
|
.where('-balance > :amount', amount: config.shameful_balance)
|
|
.order(:balance)
|
|
end
|
|
|
|
def total_debt
|
|
-User.humans.where('balance < 0').sum(:balance)
|
|
end
|
|
|
|
def shamehash
|
|
# Make a hash of all users and their debt
|
|
# only include them if their percentage is big enough
|
|
debt_users = shameful_users.inject({}) do |h, u|
|
|
h.merge({u.name => - u.balance.to_f / total_debt * 100.0})
|
|
end
|
|
.select { |user, debtpct| debtpct > 2 }
|
|
|
|
# Sum of percentages that will be displayed
|
|
total_displayed_debt_pct = debt_users.values.reduce(0) {|a,b| a+b}
|
|
|
|
debt_users["Other users"] = 100 - total_displayed_debt_pct
|
|
|
|
rounded_debts = debt_users.transform_values { |debtpct| debtpct.floor }
|
|
rounded_deficit = 100 - rounded_debts.values.reduce(0) {|a,b| a+b}
|
|
|
|
# Sort decending by amount after fraction of debt percentage
|
|
# then award users percentage points based on their ranking
|
|
debt_users.sort_by { |k, v| -(v - v.floor) }
|
|
.first(rounded_deficit)
|
|
.each do |k|
|
|
rounded_debts[k[0]] += 1
|
|
end
|
|
if rounded_debts["Other users"] == 0
|
|
rounded_debts.delete("Other users")
|
|
end
|
|
return rounded_debts
|
|
end
|
|
|
|
def by_issuer
|
|
Client.joins(:issued_transactions).group(:name).count.merge({
|
|
"User created" => Transaction.where(issuer_type: "User").count
|
|
})
|
|
end
|
|
|
|
def creation_counts
|
|
User
|
|
.joins(:issued_transactions)
|
|
.group(:name)
|
|
.order("count_all DESC")
|
|
.count
|
|
.take([shameful_users.count, 4].max)
|
|
end
|
|
end
|