thisisnic commented on code in PR #34798:
URL: https://github.com/apache/arrow/pull/34798#discussion_r1154168985
##########
r/R/csv.R:
##########
@@ -782,12 +782,16 @@ write_csv_arrow <- function(x,
tryCatch(
x <- as_record_batch_reader(x),
error = function(e) {
- abort(
- paste0(
- "x must be an object of class 'data.frame', 'RecordBatch', ",
- "'Dataset', 'Table', or 'RecordBatchReader' not '", class(x)[1],
"'."
+ if (grepl("Input data frame columns must be named",
conditionMessage(e))) {
+ abort(conditionMessage(e), parent = NA)
Review Comment:
I'm not sure `parent = e` does exactly what you think; here's the error with
`parent = NA`:
```
Error in write_csv_arrow(x, tempfile()) :
Input data frame columns must be named
ℹ Column names are NULL
```
and here's the error with `parent = e`:
```
Error in write_csv_arrow(x, tempfile()) :
Input data frame columns must be named
ℹ Column names are NULL
Caused by error:
! Input data frame columns must be named
ℹ Column names are NULL
```
I think `parent = NA` is a better fit in all cases. Current error in the
other condition with no parent specified:
```
Error in value[[3L]](cond) :
x must be an object of class 'data.frame', 'RecordBatch', 'Dataset',
'Table', or 'RecordBatchReader' not 'function'.
```
With `parent = NA`:
```
Error in write_csv_arrow(c, tempfile()) :
x must be an object of class 'data.frame', 'RecordBatch', 'Dataset',
'Table', or 'RecordBatchReader' not 'function'.
```
With `parent = e`:
```
Error in write_csv_arrow(c, tempfile()) :
x must be an object of class 'data.frame', 'RecordBatch', 'Dataset',
'Table', or 'RecordBatchReader' not 'function'.
Caused by error in `inherits()`:
! argument "schema" is missing, with no default
```
I've updated it both so they have `parent = NA`.
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