Contents

class ReportFormatter

  STAT_FUNCTIONS = {
    sum: ->(arr){arr.sum},
    min: ->(arr){arr.min},
    max: ->(arr){arr.max},
    average: ->(arr){arr.average}
  }

  STAT_FORMATS = {
    number: "%g",
    date: "%m-%d-%y",
    time: "%I:%M:%S %P",
    datetime: "%m-%d-%y %I:%M:%S %P"
  }

  def initialize(question, responses)
    @question = question
    @responses = responses
  end

  def stats(stat_function)
    stat = calculate_stats(stat_function)
    format_stats(stat)
  end

  def calculate_stats(stat_function)
    arr =  @responses.where(:question_id => @question.id).map{|r| r.response_value.to_f}
    STAT_FUNCTIONS[stat_function].call(arr)
  end
  
  def format_stats(stat)
    if @question.question_type_id == :number
      STAT_FORMATS[@question.question_type_id] % stat.to_f 
    elsif [:date, :datetime, :time].include? @question.question_type_id 
      format_time_stat(stat.to_f)
    else
      stat
    end
  end  

  def format_time_stat(stat)
      stat = Time.zone.at(stat)     
      stat.strftime(STAT_FORMATS[@question.question_type_id])
  end
end

Version data entries

3 entries across 3 versions & 2 rubygems

Version	Path
upgrade_surveyor_gui-0.1.3	app/facades/report_formatter.rb
upgrade_surveyor_gui-0.1.2	app/facades/report_formatter.rb
surveyor_gui-0.1.2	app/facades/report_formatter.rb