Class: Quby::Answers::Services::AttributeCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/quby/answers/services/attribute_calculator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(questionnaire, answer) ⇒ AttributeCalculator

Returns a new instance of AttributeCalculator.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 14

def initialize(questionnaire, answer)
  @questionnaire = questionnaire
  @answer = answer
  @hidden = []
  @shown  = []
  @groups = {}
  @depends_on_lookup = {}

  init_flag_result
  questionnaire.questions.compact.each { |question| process_question(question) }
end

Instance Attribute Details

#answer ⇒ Object (readonly)

Returns the value of attribute answer.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 7

def answer
  @answer
end

#depends_on_lookup ⇒ Object (readonly)

To check if a question or question option that is depended on is filled in, we can look up the question that fits the key in the depends_on_lookup hash.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 12

def depends_on_lookup
  @depends_on_lookup
end

#groups ⇒ Object (readonly)

Returns the value of attribute groups.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 8

def groups
  @groups
end

#hidden ⇒ Object (readonly)

Returns the value of attribute hidden.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 8

def hidden
  @hidden
end

#questionnaire ⇒ Object (readonly)

Returns the value of attribute questionnaire.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 7

def questionnaire
  @questionnaire
end

#shown ⇒ Object (readonly)

Returns the value of attribute shown.



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 8

def shown
  @shown
end

Instance Method Details

#init_flag_result ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 26

def init_flag_result
  questionnaire.flags.each_value do |flag|
    flag.if_triggered_by answer.flags do
      flag.hides_questions.each do |question_key|
        @hidden.push question_key unless @shown.include?(question_key)
      end
      flag.shows_questions.each do |question_key|
        @shown.push question_key
      end
    end
  end
end

#process_checkbox(question) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 86

def process_checkbox(question)
  selected_options = question.options.select { |option| !option.inner_title? && answer.send(option.key) == 1 }

  selected_options.each do |option|
    process_option_hiding(option)
    process_option_showing(option)
    @depends_on_lookup[option.input_key] = true
  end
end

#process_option_hiding(option) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 96

def process_option_hiding(option)
  if option.hides_questions.present?
    @hidden.concat(option.hides_questions.reject { |key| @shown.include? key }).uniq
  end
end

#process_option_showing(option) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 102

def process_option_showing(option)
  if option.shows_questions.present?
    @hidden.delete_if { |key| option.shows_questions.include? key }
    @shown.concat(option.shows_questions).uniq
  end
end

#process_question(question) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 39

def process_question(question)
  return if question.hidden?

  process_questions_that_are_invisible_by_default(question)
  process_question_answer(question)
  process_question_groups(question)
end

#process_question_answer(question) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 53

def process_question_answer(question)
  case question.type
  when :radio, :scale, :select
    process_radioish(question)
  when :check_box
    process_checkbox(question)
  else
    if answer.send(question.key).present?
      @depends_on_lookup[question.key] = true
    end
  end
end

#process_question_groups(question) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 66

def process_question_groups(question)
  if question.question_group
    @groups[question.question_group] = [] unless @groups[question.question_group]
    @groups[question.question_group] << question.key
  end
end

#process_questions_that_are_invisible_by_default(question) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 47

def process_questions_that_are_invisible_by_default(question)
  if question.default_invisible && !@shown.include?(question.key)
    @hidden.push question.key
  end
end

#process_radioish(question) ⇒ Object 



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# File 'lib/quby/answers/services/attribute_calculator.rb', line 73

def process_radioish(question)
  if value = answer.send(question.key)
    selected_option = question.options.find { |option| option.key.to_s == value }

    if selected_option
      process_option_hiding(selected_option)
      process_option_showing(selected_option)
      # placeholder options of select boxes should count as unanswered for depends_on relations
      @depends_on_lookup[selected_option.input_key] = !selected_option.placeholder
    end
  end
end