paleolimbot commented on a change in pull request #12319:
URL: https://github.com/apache/arrow/pull/12319#discussion_r800684130
##########
File path: r/R/dplyr-funcs-type.R
##########
@@ -248,3 +249,33 @@ register_bindings_type_elementwise <- function() {
is_inf & !call_binding("is.na", is_inf)
})
}
+
+register_bindings_type_format <- function() {
+ register_binding("format", function(x, ...) {
+ if (inherits(x, "Expression") &&
+ x$type_id() %in% Type[c("TIMESTAMP", "DATE32", "DATE64")]) {
+ binding_format_datetime(x, ...)
+ } else {
+ abort(paste0("`format()` not yet supported for `", class(x$type())[[1]],
"`"))
+ }
+ })
+}
+
+binding_format_datetime <- function(x, format = "", tz = "", usetz = FALSE) {
Review comment:
I would personally put this in dplyr-funcs-datetime.R since it's closely
related to strftime and friends (but I don't feel strongly about this).
##########
File path: r/R/dplyr-funcs-type.R
##########
@@ -248,3 +249,33 @@ register_bindings_type_elementwise <- function() {
is_inf & !call_binding("is.na", is_inf)
})
}
+
+register_bindings_type_format <- function() {
+ register_binding("format", function(x, ...) {
+ if (inherits(x, "Expression") &&
Review comment:
I think here you need to handle the case where `x` is *not* an
expression (e.g., if a user calls `format(1234.393483)`). Perhaps an `if
(!inherits(x, "Expression)) { return (format(x, ...)) }` at the top?
##########
File path: r/R/dplyr-funcs-type.R
##########
@@ -248,3 +249,33 @@ register_bindings_type_elementwise <- function() {
is_inf & !call_binding("is.na", is_inf)
})
}
+
+register_bindings_type_format <- function() {
+ register_binding("format", function(x, ...) {
+ if (inherits(x, "Expression") &&
+ x$type_id() %in% Type[c("TIMESTAMP", "DATE32", "DATE64")]) {
+ binding_format_datetime(x, ...)
+ } else {
+ abort(paste0("`format()` not yet supported for `", class(x$type())[[1]],
"`"))
Review comment:
I think that `x$cast(string())` or similar would be a better default
that would handle a lot of common cases.
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