Class: AdminDataDateValidation

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

Class Method Summary collapse

Class Method Details

.validate(input) ⇒ Object

Usage:

validate(‘13-feb-2008’) # => time_object validate(‘13-February-2008’) # => time_object validate(‘13-February-2008’) # => time_object validate(‘30-Feb-2008’) #=> false



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# File 'lib/admin_data_date_validation.rb', line 25

def self.validate(input)
  return false if input.nil?

  input.strip!

  # remove all the white space characters
  input.gsub!(/\s/,'')

  return false if input.length < 9

  dd,mm,yyyy = input.split('-')
  return false if dd.nil?
  return false if mm.nil?
  return false if yyyy.nil?

  # month must be of aleast three characters
  return false if mm.length < 3

  mm = mm.downcase

  #get only the first three characters
  mm = mm[0,3]

  months = {'jan' => 1,
    'feb' => 2,
    'mar' => 3,
    'apr' => 4,
    'may' => 5,
    'jun' => 6,
    'jul' => 7,
    'aug' => 8,
    'sep' => 9,
    'oct' => 10,
    'nov' => 11,
  'dec' => 12 }

  return false unless months.keys.include? mm

  mm = months[mm]
  mm = mm.to_i
  yyyy = yyyy.to_i
  dd = dd.to_i

  # validate date values
  begin
    Date.new(yyyy,mm,dd)
  rescue  => e
    return false
  end

  t = Time.now
  t.change(:year => yyyy, :month => mm, :day => dd, :hour => 0)
end

.validate_with_operator(input) ⇒ Object 



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# File 'lib/admin_data_date_validation.rb', line 5

def self.validate_with_operator(input)
  return false if input.blank?

  input.strip!

  # replace multiple consecutive white spaces by one single whitespace
  input.gsub!(/\s+/,' ')
  operator, date = input.split
  return false if operator.nil?
  return false unless %w(> < >= <= =).include? operator
  validate(date)
end