[GitHub] [arrow] dragosmg commented on a diff in pull request #12707: ARROW-14810 [R] Implement bindings for lubridate's `date_decimal()` and `decimal_date()`

[GitBox <gi...@apache.org>]

dragosmg commented on code in PR #12707:
URL: https://github.com/apache/arrow/pull/12707#discussion_r842012715


##########
r/R/dplyr-funcs-datetime.R:
##########
@@ -309,6 +323,34 @@ register_bindings_duration <- function() {
 
     build_expr("cast", x, options = cast_options(to_type = duration(unit = "s")))
   })
+  register_binding("decimal_date", function(date) {
+    y <- build_expr("year", date)
+    start <- call_binding("make_datetime", year = y, tz = "UTC")
+    sofar <- call_binding("difftime", date, start, units = "secs")
+    total <- call_binding(
+      "if_else",
+      build_expr("is_leap_year", date),
+      Expression$scalar(31622400L), # number of seconds in a leap year (366 days)
+      Expression$scalar(31536000L)  # number of seconds in a regular year (365 days)
+      )

Review Comment:
   Done.



-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: github-unsubscribe@arrow.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org