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32 lines
1.1 KiB
32 lines
1.1 KiB
# frozen_string_literal: true
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class TeacherResponseRateCalculator < ResponseRateCalculator
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def survey_item_count
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@survey_item_count ||= survey_items_with_sufficient_responses.length
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end
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def survey_items_have_sufficient_responses?
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survey_item_count.positive?
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end
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def survey_items_with_sufficient_responses
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SurveyItem.joins("inner join survey_item_responses on survey_item_responses.survey_item_id = survey_items.id")
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.teacher_survey_items
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.where("survey_item_responses.school": school, "survey_item_responses.academic_year": academic_year, "survey_item_responses.survey_item_id": @subcategory.survey_items.teacher_survey_items)
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.group("survey_items.id")
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.having("count(*) >= 0").count
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end
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def response_count
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@response_count ||= survey_items_with_sufficient_responses.values.sum
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end
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def total_possible_responses
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@total_possible_responses ||= respondents.total_teachers
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end
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def raw_response_rate
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(average_responses_per_survey_item / total_possible_responses.to_f * 100).round
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end
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end
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