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-rw-r--r--activesupport/lib/active_support/core_ext/time/calculations.rb30
1 files changed, 30 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index f09a6271ad..eed34965e3 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -311,4 +311,34 @@ class Time
end
alias_method :eql_without_coercion, :eql?
alias_method :eql?, :eql_with_coercion
+
+ # Returns a new time the specified number of days ago.
+ def prev_day(days = 1)
+ advance(days: -days)
+ end
+
+ # Returns a new time the specified number of days in the future.
+ def next_day(days = 1)
+ advance(days: days)
+ end
+
+ # Returns a new time the specified number of months ago.
+ def prev_month(months = 1)
+ advance(months: -months)
+ end
+
+ # Returns a new time the specified number of months in the future.
+ def next_month(months = 1)
+ advance(months: months)
+ end
+
+ # Returns a new time the specified number of years ago.
+ def prev_year(years = 1)
+ advance(years: -years)
+ end
+
+ # Returns a new time the specified number of years in the future.
+ def next_year(years = 1)
+ advance(years: years)
+ end
end