Class: Senkyoshi::Matching

Inherits:
Question show all
Defined in:
lib/senkyoshi/models/questions/matching.rb

Constant Summary collapse

TAGS_PATTERN = 
Regexp.union(
  /<\/?p[^>]*>/i,             # <p> tags
  /<\/?b[^>]*>/i,             # <b> tags
  /<\/?strong[^>]*>/i,        # <strong> tags
  /<\/?em[^>]*>/i,            # <em> tags
  /<\/?span[^>]*>/i,          # <span> tags
  /<\/?font[^>]*>/i,          # <font> tags
  /<\/?i(?!mg)[^>]*>/i,       # <i> tags, no <img>
  / style=("|')[^"']*("|')/i, # inline styles
)

Constants inherited from Question

Question::ITEM_FUNCTION, Question::QUESTION_TYPE

Instance Attribute Summary

Attributes inherited from Question

#answers

Instance Method Summary collapse

Methods inherited from Question

from, #get_fraction, #iterate_item, #set_answers, #set_correct_answers, #set_feedback, #set_incorrect_answers, #set_material, #set_max_score

Methods inherited from Resource

#_find_directories, #_fix_path, #_matches_directory_xid?, #_search_and_replace, #cleanup, #fix_html, get_pre_data, #matches_xid?, #strip_xid

Constructor Details

#initialize ⇒ Matching

Returns a new instance of Matching.



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# File 'lib/senkyoshi/models/questions/matching.rb', line 31

def initialize
  super
  @matches = []
  @matching_answers = {}
  @distractors = []
end

Instance Method Details

#canvas_conversion(assessment, resources) ⇒ Object 



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# File 'lib/senkyoshi/models/questions/matching.rb', line 80

def canvas_conversion(assessment, resources)
  @matches.each do |match|
    match[:question_text] = fix_html(match[:question_text], resources)
    match[:answer_text] = fix_html(match[:answer_text], resources)
  end

  @question.matches = @matches
  @question.distractors = @distractors
  super
end

#iterate_xml(data) ⇒ Object 



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# File 'lib/senkyoshi/models/questions/matching.rb', line 42

def iterate_xml(data)
  super
  resprocessing = data.at("resprocessing")
  @matching_answers = set_matching_answers(resprocessing)
  matches_array = []
  answers = []
  if match_block = data.at("flow[@class=RIGHT_MATCH_BLOCK]")
    matches_array = match_block.
      search("flow[@class=FORMATTED_TEXT_BLOCK]").
      map { |match| strip_select_html(match.text) }
  end

  if response_block = data.at("flow[@class=RESPONSE_BLOCK]")
    response_block.children.each do |response|
      id = response.at("response_lid").attributes["ident"].value
      question = response.at("mat_formattedtext").text
      answer_id = @matching_answers[id]
      answer = ""

      flow_label = response.at("flow_label")
      flow_label.children.each_with_index do |label, index|
        if label.attributes["ident"].value == answer_id
          answer = matches_array[index]
        end
      end

      answers << answer
      @matches << {
        id: Senkyoshi.create_random_hex,
        question_text: question,
        answer_text: answer,
      }
    end
  end
  @distractors = matches_array.reject { |i| answers.include?(i) }
  self
end

#set_matching_answers(resprocessing) ⇒ Object 



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# File 'lib/senkyoshi/models/questions/matching.rb', line 91

def set_matching_answers(resprocessing)
  matching_answers = {}
  respcondition = resprocessing.css("respcondition")
  respcondition.each do |condition|
    if condition.attributes["title"] != "incorrect"
      varequal = condition.at("varequal")
      if varequal
        id = varequal.attributes["respident"].value
        matching_answers[id] = varequal.text
      end
    end
  end
  matching_answers
end

#strip_select_html(text) ⇒ Object 



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# File 'lib/senkyoshi/models/questions/matching.rb', line 38

def strip_select_html(text)
  text.gsub(TAGS_PATTERN, "")
end