def self.query(query)
    if @parser.nil?
      @parser = Searcher::Parser.new
      @parser.lookup(:academic_field, "academic_fields.name")
      @parser.lookup(:sat_1600, "(sat_1600_math_score + sat_1600_verbal_score)")
      @parser.lookup(:sat_2400, "(sat_2400_math_score + sat_2400_critical_reading_score + sat_2400_writing_score)")
      @parser.lookup(:act, "(act_english_score + act_math_score + act_reading_score + act_science_reasoning_score)")
      @parser.lookup(:job_type, "job_types.name")
      @parser.lookup(:field_of_interest, "field_of_interests.name")
      @parser.lookup(:location) do |value|
        location = PreferredLocation.find_by_name(value)
        tolerance = 1
        ["((preferred_locations.lat between ? and ?) AND (preferred_locations.lon between ? and ?))", location.lat - tolerance, location.lat + tolerance, location.lon - tolerance, location.lon + tolerance]
      end
    end
    self.find(:all, :conditions => @parser.parse(query), :include => [:academic_fields, {:job_types => :field_of_interest}, :preferred_locations])
  end