Module: USNO::Eclipse::Lunar::Eclipses

Defined in:
lib/usno/eclipse/lunar/eclipses.rb

Class Method Summary collapse

Class Method Details

.all ⇒ Object

As reminders



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# File 'lib/usno/eclipse/lunar/eclipses.rb', line 33

def self.all
  %w{
    2009 February 9 (Penumbral)
    2009 July 7 (Penumbral)
    2009 August 5-6 (Penumbral)
    2009 December 31 (Partial)
    2010 June 26 (Partial)
    2010 December 21 (Total)
    2011 June 15 (Total)
    2011 December 10 (Total)
    2012 June 4 (Partial)
    2012 November 28 (Penumbral)
    2013 April 25 (Partial)
    2013 May 25 (Penumbral)
    2013 October 18-19 (Penumbral)
    2014 April 15 (Total)
    2014 October 8 (Total)
  }
end

.by_key_or_value(kv) ⇒ Object 



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# File 'lib/usno/eclipse/lunar/eclipses.rb', line 5

def self.by_key_or_value(kv)
  hash.has_value? kv and return kv

  hash.fetch(formatted_date(kv)) {
    raise "No known lunar eclipse at the provided time #{kv} - hint, try USNO::Eclipse::Lunar::Eclipses.all"
  }.to_s
end

.fetch(kv) ⇒ Object 



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# File 'lib/usno/eclipse/lunar/eclipses.rb', line 13

def self.fetch(kv)
  by_key_or_value(kv)
end

.formatted_date(date) ⇒ Object 



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# File 'lib/usno/eclipse/lunar/eclipses.rb', line 28

def self.formatted_date(date)
  date.kind_of?(String) ? date : date.strftime("%Y%-m%-d")
end

.hash ⇒ Object 



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# File 'lib/usno/eclipse/lunar/eclipses.rb', line 17

def self.hash
  {
    "200929"   => 12009, "200977"   => 22009, "200985"   => 32009,
    "200986"   => 32009, "20091231" => 42009, "2010626"  => 12010,
    "20101221" => 22010, "2011615"  => 12011, "20111210" => 22011,
    "201264"   => 12012, "20121128" => 22012, "2013425"  => 12013,
    "2013525"  => 22013, "20131018" => 32013, "20131019" => 32013,
    "2014415"  => 12014, "2014108"  => 22014
  }
end