Class: SourceTrack::TokenParser

Inherits:
Object
  • Object
show all
Defined in:
lib/source_track/token_parser.rb

Instance Method Summary collapse

Instance Method Details

#encode(tokens) ⇒ Object

returns a string that can be set in the cookie we may or may not need to encode so the cookies work in all situations



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# File 'lib/source_track/token_parser.rb', line 31

def encode(tokens)
  return nil if tokens.nil?
  tokens = [tokens] unless tokens.is_a?(Array)

  # TODO: tokens need to be unique (duplicates need to remain at the end), remember
  #       the order from left to right is oldest to newest - any duplicates should always be newest
  #       (i.e. if we 'track' a user using the same token on the same day 2x - the second visit's position
  #       should be meaningful) -- i.e.  order of tracking => A, F, B, F, C  should encode as A|B|F|C, NOT A|F|B|C
  tokens.map{|t| encode_token(t) }.join(config.separator)
end

#parse(v) ⇒ Object

Take the string from the cookie and return the source tokens (token and optional date) ABC12300FA|CODE2300FB|CD2380 #( with dates, last 4 characters are hex ) ABBC123|CODE23|CD #( no dates ) we MUST preserve order



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# File 'lib/source_track/token_parser.rb', line 11

def parse(v)
  return [] if v.nil? || v.strip.empty?

  tokens = []
  v.split(config.separator).each do |t|
    # validate the token is valid

    if config.use_dates?
      token, token_date = split_token_date(t, config.date_length)
      tokens << {:token => token, :date => get_date(token_date, config.epoch)}
    else
      tokens << {:token => t}
    end
  end

  tokens
end