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54 lines
1.4 KiB
54 lines
1.4 KiB
AggregatedResponses = Struct.new(
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:question,
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:category,
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:responses,
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:count,
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:answer_index_total,
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:answer_index_average,
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:most_popular_answer
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)
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class Question < ApplicationRecord
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belongs_to :category
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has_many :attempts
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validates :text, presence: true
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validates :option1, presence: true
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validates :option2, presence: true
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validates :option3, presence: true
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validates :option4, presence: true
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validates :option5, presence: true
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scope :for_category, -> (category) { where(category: category) }
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def options
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[option1, option2, option3, option4, option5].map(&:downcase).map(&:strip)
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end
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def option_index(answer)
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options.index(answer.downcase.strip)
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end
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def aggregated_responses_for_school(school)
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school_responses = attempts.for_school(school).with_responses
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return unless school_responses.present?
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response_answer_total = school_responses.inject(0) { |total, response| total + response.answer_index }
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histogram = school_responses.group_by(&:answer_index)
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most_popular_answer_index = histogram.to_a.sort_by { |info| info[1].length }.last[0]
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most_popular_answer = send("option#{most_popular_answer_index}")
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AggregatedResponses.new(
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self,
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category,
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school_responses,
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school_responses.length,
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response_answer_total,
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response_answer_total.to_f / school_responses.length.to_f,
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most_popular_answer
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)
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end
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end
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