Class: CinnamonSerial::Formatting

Inherits:
Object
  • Object
show all
Defined in:
lib/cinnamon_serial/formatting.rb

Overview

Static utility methods for general use.

Class Method Summary collapse

Class Method Details

.blank?(value) ⇒ Boolean

Returns:

  • (Boolean) 


34
35
36
37
38
39
40
41
42
 
# File 'lib/cinnamon_serial/formatting.rb', line 34

def blank?(value)
  if value.respond_to?(:blank?)
    value.blank?
  elsif value.respond_to?(:empty?)
    !!value.empty?
  else
    !value
  end
end

.mask(value, keep_last = 4, mask_with = 'X') ⇒ Object

Only show the last N positions in a string, replace the rest with the mask_with value. Example:

  • 123-45-6789 becomes: XXXXXXX6789

  • ABCDEFG becomes: XXXDEFG



19
20
21
22
23
24
 
# File 'lib/cinnamon_serial/formatting.rb', line 19

def mask(value, keep_last = 4, mask_with = 'X')
  string_value = value.to_s
  return string_value if blank?(string_value) || string_value.size <= keep_last

  (mask_with.to_s * (string_value.size - keep_last)) + string_value[-keep_last..-1]
end

.percent(num) ⇒ Object 



26
27
28
 
# File 'lib/cinnamon_serial/formatting.rb', line 26

def percent(num)
  present?(num) ? format('%.2f %%', num) : ''
end

.present?(value) ⇒ Boolean

Returns:

  • (Boolean) 


30
31
32
 
# File 'lib/cinnamon_serial/formatting.rb', line 30

def present?(value)
  !blank?(value)
end