Module: ActiveReporter::Report::Metrics

Included in:
ActiveReporter::Report
Defined in:
lib/active_reporter/report/metrics.rb

Instance Method Summary collapse

Instance Method Details

#aggregators ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 12

def aggregators
  @aggregators ||= build_axes(self.class.aggregators.slice(*Array(params.fetch(:aggregators, self.class.aggregators.keys)).collect(&:to_sym)))
end

#all_aggregators ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 62

def all_aggregators
  aggregators.merge(calculators).merge(trackers).merge(evaluators)
end

#base_relation ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 34

def base_relation
  params.fetch(:relation, report_model.all)
end

#calculators ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 50

def calculators
  @calculators ||= build_axes(self.class.calculators.slice(*(Array(params[:calculators]) + Array(params[:aggregators])).collect(&:to_sym).uniq))
end

#dimensions ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 8

def dimensions
  @dimensions ||= build_axes(self.class.dimensions)
end

#evaluators ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 58

def evaluators
  @evaluators ||= build_axes(self.class.evaluators.slice(*(Array(params[:evaluators]) + Array(params[:aggregators])).collect(&:to_sym).uniq))
end

#fields ⇒ Object

The grouper dimensions followed by the calculator, tracker, and evaluator names that appear alongside them in report rows.



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# File 'lib/active_reporter/report/metrics.rb', line 68

def fields
  [groupers, calculators.keys, trackers.keys, evaluators.keys].flatten
end

#filters ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 26

def filters
  @filters ||= dimensions.values.select(&:filtering?)
end

#grouper_names ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 16

def grouper_names
  names = params.fetch(:groupers, [dimensions.except(:totals).keys.first])
  names = names.is_a?(Hash) ? names.values : Array.wrap(names).compact
  names.map(&:to_sym)
end

#groupers ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 22

def groupers
  @groupers ||= dimensions.values_at(*grouper_names)
end

#groups ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 46

def groups
  @groups ||= groupers.reduce(records) { |relation, dimension| dimension.group(relation) }
end

#records ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 42

def records
  @records ||= filters.reduce(relation) { |relation, dimension| dimension.filter(relation) }
end

#relation ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 38

def relation
  @relation ||= relators.reduce(base_relation) { |relation, dimension| dimension.relate(relation) }
end

#relators ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 30

def relators
  filters | groupers
end

#total_report ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 72

def total_report
  @total_report ||= self.class.new(@params.except(:calculators).merge({ groupers: :totals })) unless @total_data.present?
end

#trackers ⇒ Object 



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# File 'lib/active_reporter/report/metrics.rb', line 54

def trackers
  @trackers ||= build_axes(self.class.trackers.slice(*(Array(params[:trackers]) + Array(params[:aggregators])).collect(&:to_sym).uniq))
end