Class: Surveyor::RedcapParser

Inherits:
Object
  • Object
show all
Defined in:
lib/surveyor/redcap_parser.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RedcapParser

Instance methods



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# File 'lib/surveyor/redcap_parser.rb', line 26

def initialize
  self.context = {}
  self.context[:dependency_conditions] = []
end

Class Attribute Details

.options ⇒ Object

Returns the value of attribute options.



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# File 'lib/surveyor/redcap_parser.rb', line 8

def options
  @options
end

Instance Attribute Details

#context ⇒ Object

Attributes



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# File 'lib/surveyor/redcap_parser.rb', line 11

def context
  @context
end

Class Method Details

.parse(str, filename, options = {}) ⇒ Object

Class methods



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# File 'lib/surveyor/redcap_parser.rb', line 14

def self.parse(str, filename, options={})
  self.options = options
  Surveyor::RedcapParser.rake_trace "\n"
  Surveyor::RedcapParser.new.parse(str, filename)
  Surveyor::RedcapParser.rake_trace "\n"
end

.rake_trace(str) ⇒ Object 



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# File 'lib/surveyor/redcap_parser.rb', line 20

def self.rake_trace(str)
  self.options ||= {}
  print str if self.options[:trace] == true
end

Instance Method Details

#missing_columns(r) ⇒ Object 



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# File 'lib/surveyor/redcap_parser.rb', line 55

def missing_columns(r)
  missing = []
  missing << "choices_or_calculations" unless r.map(&:to_s).include?("choices_or_calculations") or r.map(&:to_s).include?("choices_calculations_or_slider_labels")
  missing << "text_validation_type" unless r.map(&:to_s).include?("text_validation_type") or r.map(&:to_s).include?("text_validation_type_or_show_slider_number")
  missing += (static_required_columns - r.map(&:to_s))
end

#parse(str, filename) ⇒ Object 



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# File 'lib/surveyor/redcap_parser.rb', line 30

def parse(str, filename)
  csvlib = CSV.const_defined?(:Reader) ? FasterCSV : CSV
  begin
    csvlib.parse(str, :headers => :first_row, :return_headers => true, :header_converters => :symbol) do |r|
      if r.header_row? # header row
        return Surveyor::RedcapParser.rake_trace "Missing headers: #{missing_columns(r.headers).inspect}\n\n" unless missing_columns(r.headers).blank?
        context[:survey] = Survey.new(:title => filename)
        Surveyor::RedcapParser.rake_trace "survey_#{context[:survey].access_code} "
      else # non-header rows
        SurveySection.new.extend(SurveyorRedcapParserSurveySectionMethods).build_or_set(context, r)
        Question.new.extend(SurveyorRedcapParserQuestionMethods).build_and_set(context, r)
        Answer.new.extend(SurveyorRedcapParserAnswerMethods).build_and_set(context, r)
        Validation.new.extend(SurveyorRedcapParserValidationMethods).build_and_set(context, r)
        Dependency.new.extend(SurveyorRedcapParserDependencyMethods).build_and_set(context, r)
      end
    end
    resolve_references
    Surveyor::RedcapParser.rake_trace context[:survey].save ? "saved. " : " not saved! #{context[:survey].errors.full_messages.join(", ")} "
    # Surveyor::RedcapParser.rake_trace context[:survey].sections.map(&:questions).flatten.map(&:answers).flatten.map{|x| x.errors.each_full{|y| y}.join}.join
  rescue csvlib::MalformedCSVError
    raise Surveyor::RedcapParserError, "Oops. Not a valid CSV file."
  # ensure
  end
  return context[:survey]
end

#resolve_references ⇒ Object 



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# File 'lib/surveyor/redcap_parser.rb', line 65

def resolve_references
  context[:dependency_conditions].each do |dc|
    return unless dc.lookup_reference
    Surveyor::RedcapParser.rake_trace "resolve(#{dc.question_reference},#{dc.answer_reference})"
    if dc.answer_reference.blank? and (row = dc.lookup_reference.find{|r| r[0] == dc.question_reference and r[1] == nil}) and row[2].answers.size == 1
      Surveyor::RedcapParser.rake_trace "...found "
      dc.question = row[2]
      dc.answer = dc.question.answers.first
    elsif row = dc.lookup_reference.find{|r| r[0] == dc.question_reference and r[1] == dc.answer_reference}
      Surveyor::RedcapParser.rake_trace "...found "
      dc.answer = row[2]
      dc.question = dc.answer.question
    else
      Surveyor::RedcapParser.rake_trace "\n!!! failed lookup for dependency_condition q: #{question_reference} a: #{question_reference}"
    end
  end
end

#static_required_columns ⇒ Object 



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# File 'lib/surveyor/redcap_parser.rb', line 61

def static_required_columns
  # no longer requiring field_units
  %w(variable__field_name form_name section_header field_type field_label field_note text_validation_min text_validation_max identifier branching_logic_show_field_only_if required_field)
end