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39 lines
968 B
39 lines
968 B
module ResponseRateCalculator
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TEACHER_RATE_THRESHOLD = 25
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STUDENT_RATE_THRESHOLD = 25
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attr_reader :subcategory, :school, :academic_year
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def initialize(subcategory:, school:, academic_year:)
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@subcategory = subcategory
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@school = school
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@academic_year = academic_year
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end
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def rate
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return 100 if Respondent.where(school: @school, academic_year: @academic_year).count.zero?
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return 0 unless survey_item_count.positive?
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average_responses_per_survey_item = response_count / survey_item_count.to_f
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return 0 unless total_possible_responses.positive?
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response_rate = (average_responses_per_survey_item / total_possible_responses.to_f * 100).round
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cap_at_100(response_rate)
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end
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def meets_student_threshold?
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rate >= STUDENT_RATE_THRESHOLD
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end
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def meets_teacher_threshold?
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rate >= TEACHER_RATE_THRESHOLD
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end
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private
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def cap_at_100(response_rate)
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response_rate > 100 ? 100 : response_rate
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end
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end
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