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