Class: Span::DateDiff
- Inherits:
-
Object
- Object
- Span::DateDiff
- Defined in:
- lib/span/date_diff.rb
Instance Attribute Summary collapse
-
#end_date ⇒ Object
readonly
Returns the value of attribute end_date.
-
#start_date ⇒ Object
readonly
Returns the value of attribute start_date.
Class Method Summary collapse
Instance Method Summary collapse
- #build_diff_hash ⇒ Object
- #default_diff(check_from, part, part_singular) ⇒ Object
- #diff_days(*args) ⇒ Object
- #diff_months(check_from) ⇒ Object
- #diff_weeks(check_from) ⇒ Object
- #diff_years(*args) ⇒ Object
-
#initialize(end_date_input, start_date_input) ⇒ DateDiff
constructor
A new instance of DateDiff.
- #to_hash ⇒ Object
Constructor Details
#initialize(end_date_input, start_date_input) ⇒ DateDiff
Returns a new instance of DateDiff.
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# File 'lib/span/date_diff.rb', line 13 def initialize( end_date_input , start_date_input ) end_date = end_date_input.to_date start_date = start_date_input.to_date if start_date > end_date @end_date = start_date @start_date = end_date else @end_date = end_date @start_date = start_date end end |
Instance Attribute Details
#end_date ⇒ Object (readonly)
Returns the value of attribute end_date.
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# File 'lib/span/date_diff.rb', line 5 def end_date @end_date end |
#start_date ⇒ Object (readonly)
Returns the value of attribute start_date.
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# File 'lib/span/date_diff.rb', line 5 def start_date @start_date end |
Class Method Details
.compute(*args, &block) ⇒ Object
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# File 'lib/span/date_diff.rb', line 9 def self.compute( *args , &block ) new( *args , &block ).to_hash end |
Instance Method Details
#build_diff_hash ⇒ Object
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# File 'lib/span/date_diff.rb', line 26 def build_diff_hash check_from = start_date [ :years , :months , :weeks , :days ].reduce Hash.new do | memo , part | check_from , num_of_part , part_singular = send \ :"diff_#{ part }", check_from, part memo[ part_singular ] = num_of_part memo end end |
#default_diff(check_from, part, part_singular) ⇒ Object
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# File 'lib/span/date_diff.rb', line 41 def default_diff( check_from , part , part_singular ) num_of_part = 0 part_next_method = :"next_#{ part_singular }" loop do check = check_from.send part_next_method break if check > end_date check_from = check num_of_part += 1 end [ check_from , num_of_part , part_singular ] end |
#diff_days(*args) ⇒ Object
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# File 'lib/span/date_diff.rb', line 57 def diff_days( *args ) default_diff *args , :day end |
#diff_months(check_from) ⇒ Object
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# File 'lib/span/date_diff.rb', line 61 def diff_months( check_from , * ) num_of_part = 0 part_singular = :month part_next_method = :"next_#{ part_singular }" loop do check = check_from.send part_next_method if check > end_date if start_date.day != check_from.day day = start_date.strftime '%d' month = check_from.strftime '%m' year = check_from.strftime '%Y' date_to_try = begin Date.parse "#{ day }/#{ month }/#{ year }" rescue ArgumentError false end check_from = if date_to_try date_to_try else next_month = check_from.next_month.strftime '%m' Date.parse( "01/#{ next_month }/#{ year }" ).prev_day end end break end check_from = check num_of_part += 1 end [ check_from , num_of_part , part_singular ] end |
#diff_weeks(check_from) ⇒ Object
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# File 'lib/span/date_diff.rb', line 101 def diff_weeks( check_from , * ) num_of_part = 0 part_singular = :week part_next_method = :next_day loop do check = check_from.send part_next_method 6.times { check = check.send part_next_method } break if check > end_date check_from = check num_of_part += 1 end [ check_from , num_of_part , part_singular ] end |
#diff_years(*args) ⇒ Object
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# File 'lib/span/date_diff.rb', line 119 def diff_years( *args ) default_diff *args , :year end |
#to_hash ⇒ Object
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# File 'lib/span/date_diff.rb', line 123 def to_hash @_hash ||= build_diff_hash end |