Class: HealthDataStandards::Util::HL7Helper

Inherits:
Object
  • Object
show all
Defined in:
lib/health-data-standards/util/hl7_helper.rb

Overview

General helpers for working with HL7 data types

Class Method Summary collapse

Class Method Details

.timestamp_to_integer(timestamp) ⇒ Integer

Converts an HL7 timestamp into an Integer

Parameters:

  • timestamp (String) —

    the HL7 timestamp. Expects YYYYMMDD format

Returns:

  • (Integer) —

    Date in seconds since the epoch



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# File 'lib/health-data-standards/util/hl7_helper.rb', line 9

def self.timestamp_to_integer(timestamp)
  if timestamp && timestamp.length >= 4
    year = timestamp[0..3].to_i
    month = timestamp.length >= 6 ? timestamp[4..5].to_i : 1
    day = timestamp.length >= 8 ? timestamp[6..7].to_i : 1
    hour = timestamp.length >= 10 ? timestamp[8..9].to_i : 0
    min = timestamp.length >= 12 ? timestamp[10..11].to_i : 0
    sec = timestamp.length >= 14 ? timestamp[12..13].to_i : 0
    
    Time.gm(year, month, day, hour, min, sec).to_i
  else
    nil
  end
end