Class: CanvasQtiToLearnosityConverter::MultipleChoiceQuestion

Inherits:
QuizQuestion
  • Object
show all
Defined in:
lib/canvas_qti_to_learnosity_converter/questions/multiple_choice.rb

Direct Known Subclasses

MultipleAnswersQuestion

Instance Method Summary collapse

Methods inherited from QuizQuestion

#convert, #dynamic_content_data, #extract_feedback, #extract_mattext, #extract_points_possible, #extract_stimulus, for, #initialize, #make_identifier, #process_assets!

Constructor Details

This class inherits a constructor from CanvasQtiToLearnosityConverter::QuizQuestion

Instance Method Details

#add_learnosity_assets(assets, path, learnosity) ⇒ Object 



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# File 'lib/canvas_qti_to_learnosity_converter/questions/multiple_choice.rb', line 94

def add_learnosity_assets(assets, path, learnosity)
  process_assets!(
    assets,
    path,
    learnosity[:stimulus]
  )

  learnosity[:options].each.with_index do |option, index|
    process_assets!(
      assets,
      path,
      option["label"]
    )
  end
  learnosity
end

#extract_options ⇒ Object 



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# File 'lib/canvas_qti_to_learnosity_converter/questions/multiple_choice.rb', line 5

def extract_options()
  choices = @xml.css("item > presentation > response_lid > render_choice > response_label")
  choices.map do |choice|
    ident = choice.attribute("ident").value
    {
      "value" => ident,
      "label" => extract_mattext(choice.css("material > mattext").first),
    }
  end
end

#extract_response_id ⇒ Object 



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# File 'lib/canvas_qti_to_learnosity_converter/questions/multiple_choice.rb', line 16

def extract_response_id()
  @xml.css("item > presentation > response_lid").attribute("ident").value
end

#extract_validation ⇒ Object 



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# File 'lib/canvas_qti_to_learnosity_converter/questions/multiple_choice.rb', line 20

def extract_validation()
  resp_conditions = @xml.css("item > resprocessing > respcondition")
  
  # Extract all conditions that award points
  scored_conditions = resp_conditions.filter_map do |condition|
    setvar = condition.css("setvar").first
    next unless setvar
    
    score = setvar.text.to_f
    next if score <= 0
    
    answer_value = condition.css("varequal").text
    next if answer_value.empty?
    
    {
      value: answer_value,
      score: score
    }
  end.sort_by { |c| -c[:score] } # Sort by score descending
  
  return nil if scored_conditions.empty?
  
  # Get the highest scoring answer
  best_answer = scored_conditions.first
  points_possible = extract_points_possible
  
  # Helper method to scale score to points_possible
  scale_score = ->(score) { points_possible * (score / 100.0) }
  
  # If there's only one scoring option, use exactMatch
  if scored_conditions.length == 1
    {
      "scoring_type" => "exactMatch",
      "valid_response" => {
        "value" => [best_answer[:value]],
        "score" => scale_score.call(best_answer[:score]),
      },
    }
  else
    # Multiple scoring options, use partialMatch
    validation = {
      "scoring_type" => "partialMatch",
      "valid_response" => {
        "value" => [best_answer[:value]],
        "score" => scale_score.call(best_answer[:score]),
      },
    }
    
    # Add alternative responses with lower scores
    alt_responses = scored_conditions[1..].map do |condition|
      {
        "value" => [condition[:value]],
        "score" => scale_score.call(condition[:score]),
      }
    end
    
    validation["alt_responses"] = alt_responses if alt_responses.any?
    validation
  end
end

#to_learnosity ⇒ Object 



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# File 'lib/canvas_qti_to_learnosity_converter/questions/multiple_choice.rb', line 81

def to_learnosity
  shuffle = @xml.css("item > presentation > response_lid > render_choice").first&.attribute("shuffle")&.value
  {
    stimulus: extract_stimulus(),
    options: extract_options(),
    multiple_responses: false,
    shuffle_options: shuffle == "Yes",
    response_id: extract_response_id(),
    type: "mcq",
    validation: extract_validation(),
  }
end