Class: Qti::V1::Models::Interactions::ChoiceInteraction

Inherits:
BaseInteraction show all
Defined in:
lib/qti/v1/models/interactions/choice_interaction.rb

Direct Known Subclasses

OrderingInteraction

Constant Summary

Constants inherited from Models::Base

Models::Base::ELEMENTS_REMAP

Instance Attribute Summary

Attributes inherited from BaseInteraction

#node

Attributes inherited from Models::Base

#doc

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from BaseInteraction

#shuffled?

Methods inherited from Base

#qti_version

Methods inherited from Models::Base

#css_with_single_check, from_path!, #parse_xml, #remap_href_path, #remap_unknown_tags_transformer, #sanitize_config, #sanitize_content!, #xpath_with_single_check

Constructor Details

#initialize(node) ⇒ ChoiceInteraction

Returns a new instance of ChoiceInteraction.



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# File 'lib/qti/v1/models/interactions/choice_interaction.rb', line 15

def initialize(node)
  @node = node
end

Class Method Details

.matches(node) ⇒ Object

This will know if a class matches



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# File 'lib/qti/v1/models/interactions/choice_interaction.rb', line 7

def self.matches(node)
  matches = node.xpath('.//xmlns:response_lid')
  return false if matches.count > 1  || matches.empty?
  rcardinality = matches.first.attributes['rcardinality']&.value || 'Single'
  return false if rcardinality == 'Ordered'
  new(node)
end

Instance Method Details

#answers ⇒ Object 



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# File 'lib/qti/v1/models/interactions/choice_interaction.rb', line 19

def answers
  @answers ||= answer_nodes.map do |node|
    V1::Models::Choices::LogicalIdentifierChoice.new(node)
  end
end

#scoring_data_structs ⇒ Object 



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# File 'lib/qti/v1/models/interactions/choice_interaction.rb', line 25

def scoring_data_structs
  choice_nodes = node.xpath('.//xmlns:respcondition')
  set_var_nodes = choice_nodes.select { |choice_node| choice_node.at_xpath('.//xmlns:setvar').content.to_f.positive? }
  set_var_nodes.map { |value_node| ScoringData.new(value_node.at_xpath('.//xmlns:varequal').content, rcardinality) }
end