Sha256: bbc22615c5fd2d5889ac8c208fbc84d651a3d4c287cb19d90468ed9245d7c234
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Size: 1.24 KB
Versions: 53
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Stored size: 1.24 KB
Contents
# Collected responses from one Participant PHQ-9 assessment session.
class PhqAssessment < ActiveRecord::Base
MIN_QUESTION_SCORE = 0
MAX_QUESTION_SCORE = 3
QUESTION_ATTRIBUTES = :q1, :q2, :q3, :q4, :q5, :q6, :q7, :q8, :q9
SUICIDAL_SCORE = 3
belongs_to :participant
validates :participant, :release_date, presence: true
validates :release_date, uniqueness: { scope: :participant_id }
validate :scores_valid
scope :recenty_released, -> { order(release_date: :desc) }
def self.most_recent
recenty_released.first
end
def answered_questions
@answered_questions ||= remove_nils
end
def completed?
number_answered == QUESTION_ATTRIBUTES.count
end
def number_answered
answered_questions.count
end
def score
answered_questions.inject(:+)
end
def suicidal?
q9 == SUICIDAL_SCORE
end
private
def remove_nils
QUESTION_ATTRIBUTES.map { |answer| self[answer] }.compact
end
def scores_valid
return unless number_answered > 0
if answered_questions.min < MIN_QUESTION_SCORE ||
answered_questions.max > MAX_QUESTION_SCORE
errors.add(:base, "scores must be between #{ MIN_QUESTION_SCORE } " \
"and #{ MAX_QUESTION_SCORE } inclusive")
end
end
end
Version data entries
53 entries across 53 versions & 1 rubygems