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71 lines
2.2 KiB
71 lines
2.2 KiB
class ResponseRate
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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 student
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return 0 unless student_survey_item_count.positive?
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average_responses_per_survey_item = student_response_count / student_survey_item_count
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return 0 unless total_possible_student_responses.positive?
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(average_responses_per_survey_item / total_possible_student_responses * 100).round
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end
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def teacher
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return 0 unless teacher_survey_item_count.positive?
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average_responses_per_survey_item = teacher_response_count / teacher_survey_item_count
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return 0 unless total_possible_teacher_responses.positive?
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(average_responses_per_survey_item / total_possible_teacher_responses * 100).round
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end
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private
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def total_possible_student_responses
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@total_possible_student_responses ||= total_possible_responses do |responses|
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responses.total_students
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end
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end
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def total_possible_teacher_responses
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@total_possible_teacher_responses ||= total_possible_responses do |responses|
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responses.total_teachers
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end
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end
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def total_possible_responses
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total_responses = Respondent.where(school: @school, academic_year: @academic_year).first
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return 0 unless total_responses.present?
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yield total_responses
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end
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def student_response_count
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@student_response_count ||= SurveyItemResponse.student_responses_for_measures(@subcategory.measures, @school,
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@academic_year).count.to_f
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end
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def teacher_response_count
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@teacher_response_count ||= SurveyItemResponse.teacher_responses_for_measures(@subcategory.measures, @school,
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@academic_year).count.to_f
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end
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def student_survey_item_count
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@student_survey_item_count ||= @subcategory.measures.map do |measure|
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measure.student_survey_items.count
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end.sum.to_f
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end
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def teacher_survey_item_count
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@teacher_survey_item_count ||= @subcategory.measures.map do |measure|
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measure.teacher_survey_items.count
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end.sum.to_f
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end
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end
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