Class: CanvasQtiToLearnosityConverter::NumericalQuestion

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

Instance Method Summary collapse

Methods inherited from QuizQuestion

#convert, #dynamic_content_data, #extract_mattext, #extract_points_possible, #extract_stimulus, #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/numerical.rb', line 56

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

#extract_validation ⇒ Object 



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# File 'lib/canvas_qti_to_learnosity_converter/questions/numerical.rb', line 15

def extract_validation()
  response_mins = @xml.css('item > resprocessing >
    respcondition[continue="No"] > conditionvar vargte').map do |node|
    node.content
  end

  response_maxs = @xml.css('item > resprocessing >
    respcondition[continue="No"] > conditionvar varlte').map do |node|
    node.content
  end

  answer_bounds = response_mins.zip(response_maxs).map do |bounds|
    # Get the precision by counting the number of places after the decimal
    precision = [
      bounds.first.split(".").last.length,
      bounds.last.split(".").last.length
    ].max

    {
      center: ((bounds.first.to_f + bounds.last.to_f) / 2.0).round(precision),
      pm: ((bounds.first.to_f - bounds.last.to_f) / 2.0).round(precision).abs,
    }
  end

  valid_answers = answer_bounds.map do |bounds|
    {
      "value" => [{
        "method" => "equivValue",
        "value" => "#{bounds[:center]}\\pm#{bounds[:pm]}",
        "score" => extract_points_possible,
      }]
    }
  end

  {
    "scoring_type" => "exactMatch",
    "valid_response" => valid_answers.shift,
    "alt_responses" => valid_answers,
  }
end

#to_learnosity ⇒ Object 



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

def to_learnosity
  {
    is_math: true,
    type: "formulaV2",
    stimulus: extract_stimulus(),
    template: "{{response}}",
    validation: extract_validation(),
  }
end