Class: Moodle2CC::CanvasCC::Models::Assessment

Inherits:
Object
  • Object
show all
Defined in:
lib/moodle2cc/canvas_cc/models/assessment.rb

Constant Summary collapse

META_ATTRIBUTES = 
%i[title
description
allowed_attempts
scoring_policy
access_code
ip_filter
shuffle_answers
time_limit
quiz_type].freeze
DATETIME_ATTRIBUTES = 
[:lock_at, :unlock_at].freeze
ASSESSMENT_TYPE = 
"imsqti_xmlv1p2/imscc_xmlv1p1/assessment"
LAR_TYPE = 
"associatedcontent/imscc_xmlv1p1/learning-application-resource"
ASSESSMENT_NON_CC_FOLDER = 
"non_cc_assessments"

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Assessment

Returns a new instance of Assessment.



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 22

def initialize
  @question_references = []
end

Instance Method Details

#canvas_assessment_resource ⇒ Object 



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 39

def canvas_assessment_resource
  resource = Moodle2CC::CanvasCC::Models::Resource.new
  resource.identifier = "#{@identifier}_meta"
  resource.href = meta_file_path
  resource.type = LAR_TYPE
  resource.files = [meta_file_path, qti_file_path]
  resource
end

#cc_assessment_resource ⇒ Object 



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 30

def cc_assessment_resource
  resource = Moodle2CC::CanvasCC::Models::Resource.new
  resource.identifier = @identifier
  resource.type = ASSESSMENT_TYPE
  resource.dependencies = ["#{@identifier}_meta"]
  resource.files = [] # TODO: export cc qti file
  resource
end

#meta_file_path ⇒ Object 



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 48

def meta_file_path
  "#{@identifier}/assessment_meta.xml"
end

#qti_file_path ⇒ Object 



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 52

def qti_file_path
  "#{ASSESSMENT_NON_CC_FOLDER}/#{@identifier}.xml.qti"
end

#resolve_question_references!(question_banks) ⇒ Object 



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 56

def resolve_question_references!(question_banks)
  @items ||= []

  # keep track of each time a bank is referenced through a random question reference
  random_bank_counts = {}

  @question_references.each do |ref|
    question = nil
    group = nil
    question_banks.each do |bank|
      break if (question = bank.questions.detect { |q| q.original_identifier.to_s == ref[:question] })
      break if (question = bank.questions.detect { |q| q.bank_entry_id.to_s == ref[:bank_entry_id] })
      break if (group = bank.question_groups.detect { |g| g.identifier.to_s == ref[:question] })

      next unless bank.random_question_references.any? { |r| r.to_s == ref[:question] }

      random_bank_counts[bank] ||= 0
      random_bank_counts[bank] += 1
      break
    end

    if question
      question.assessment_question_identifierref ||= "question_#{question.identifier}"
      copy = question.dup
      copy.identifier = "#{copy.identifier}_copy"
      copy.points_possible = ref[:grade] if ref[:grade]
      @items << copy
    elsif group
      copy = group.dup
      if ref[:grade] && copy.selection_number.to_i != 0
        copy.points_per_item = ref[:grade].to_f / copy.selection_number.to_i
      end
      @items << copy
    end
  end

  random_bank_counts.each do |bank, count|
    new_group = Moodle2CC::CanvasCC::Models::QuestionGroup.new
    new_group.identifier = "#{@identifier}#{bank.identifier}_random_group"
    new_group.selection_number = count
    new_group.questions = bank.questions.map(&:dup).map{|q| (q.identifier = "random_#{q.identifier}") && q }
    child_banks = bank.find_children_banks(question_banks)
    child_banks.each do |child|
      new_group.questions += child.questions.map(&:dup).map{|q| (q.identifier = "random_#{q.identifier}") && q }
    end

    @items << new_group
  end

  @items.select { |i| i.is_a?(Moodle2CC::CanvasCC::Models::QuestionGroup) }.each do |group|
    group.questions.each do |q|
      @items.delete_if { |i| i.respond_to?(:original_identifier) && i.original_identifier == q.original_identifier }
    end
  end
end

#resources ⇒ Object 



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# File 'lib/moodle2cc/canvas_cc/models/assessment.rb', line 26

def resources
  [cc_assessment_resource, canvas_assessment_resource]
end