Class: Request::Statistics::Counter

Inherits:
Object
  • Object
show all
Defined in:
app/models/request/statistics.rb

Instance Method Summary collapse

Constructor Details

#initialize(statistics = {}) ⇒ Counter

Returns a new instance of Counter.



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# File 'app/models/request/statistics.rb', line 4

def initialize(statistics = {})
  @statistics = Hash.new(0).merge(statistics)
end

Instance Method Details

#completed ⇒ Object 



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# File 'app/models/request/statistics.rb', line 15

def completed
  %w[passed failed].sum(&method(:[]))
end

#pending ⇒ Object 



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# File 'app/models/request/statistics.rb', line 19

def pending
  %w[pending blocked].sum(&method(:[]))
end

#progress ⇒ Object

Percentage of passed requests out of those which haven’t been failed. I believe the reason failed requests are subtracted from the total, rather than added to pending, are because failed sequencing requests get duplicated, and in this case it wouldn’t make sense to increment progress.



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# File 'app/models/request/statistics.rb', line 39

def progress
  return 0 if passed.zero? # If there are no passed then the progress is 0% by definition

  (passed * 100) / (total - failed)
end

#states(exclude: []) ⇒ Object

Returns each state, with is absolute and percentage contribution to the total. Excluded states don’t get returned, ideal for excluding pending from progress bars. Note: excluded states still form part of the calculations



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# File 'app/models/request/statistics.rb', line 30

def states(exclude: [])
  filtered_states = sorted_states.reject { |state, _statistics| exclude.include?(state) || state == 'cancelled' }
  filtered_states.map { |state, absolute| [state, absolute, (absolute * 100) / total] }
end

#total ⇒ Object

Cancelled requests get filtered out, as generally they are administrative decisions



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# File 'app/models/request/statistics.rb', line 11

def total
  @statistics.values.sum - @statistics['cancelled']
end