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109 lines
3.1 KiB
109 lines
3.1 KiB
class ResponseRatePresenter
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attr_reader :focus, :academic_year, :school, :survey_items
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def initialize(focus:, academic_year:, school:)
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@focus = focus
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@academic_year = academic_year
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@school = school
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if focus == :student
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@survey_items = Measure.all.flat_map do |measure|
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measure.student_survey_items_with_sufficient_responses(school:, academic_year:)
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end
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end
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@survey_items = SurveyItem.teacher_survey_items if focus == :teacher
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end
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def date
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SurveyItemResponse.where(survey_item: survey_items, school:,
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academic_year:).order(recorded_date: :DESC).first&.recorded_date
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end
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def percentage
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return 0 if respondents_count.zero?
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cap_at_100(actual_count.to_f / respondents_count.to_f * 100).round
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end
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def color
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percentage > 75 ? "purple" : "gold"
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end
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def date_message
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return "" if date.nil?
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"Response rate as of #{date.to_date.strftime('%m/%d/%y')}"
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end
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def hover_message
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return "" if date.nil?
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"Percentages based on #{actual_count} out of #{respondents_count.round} #{focus}s completing at least 25% of the survey."
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end
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private
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def cap_at_100(value)
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value > 100 ? 100 : value
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end
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def actual_count
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if focus == :teacher
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response_count_for_survey_items(survey_items:)
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else
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non_early_ed_items = survey_items - SurveyItem.early_education_survey_items
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non_early_ed_count = response_count_for_survey_items(survey_items: non_early_ed_items)
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early_ed_items = survey_items & SurveyItem.early_education_survey_items
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early_ed_count = SurveyItemResponse.where(school:, academic_year:,
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survey_item: early_ed_items)
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.group(:survey_item)
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.select(:response_id)
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.distinct
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.count
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.reduce(0) do |largest, row|
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count = row[1]
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if count > largest
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count
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else
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largest
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end
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end
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non_early_ed_count + early_ed_count
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end
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end
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def response_count_for_survey_items(survey_items:)
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SurveyItemResponse.where(school:, academic_year:,
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survey_item: survey_items).select(:response_id).distinct.count || 0
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end
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def respondents_count
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return 0 if respondents.nil?
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count = enrollment if focus == :student
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count = respondents.total_teachers if focus == :teacher
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count
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end
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def enrollment
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SurveyItemResponse.where(school:, academic_year:, grade: grades,
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survey_item: SurveyItem.student_survey_items)
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.select(:grade)
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.distinct
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.pluck(:grade)
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.reject(&:nil?)
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.map do |grade|
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respondents.enrollment_by_grade[grade]
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end.sum.to_f
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end
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def respondents
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@respondents ||= Respondent.by_school_and_year(school:, academic_year:)
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end
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def grades
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respondents.enrollment_by_grade.keys
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end
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end
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