tab_style fails to target all cell_summary rows

[steveputman]

Applying tab_style to cells_summary can result in erratic behavior (in my case, styling some but not all of the summary rows). It seems to pop up more often when there are more groups, but there is some pattern that is eluding me: with 1 row and 1 group, it happens every time. With 2 rows and 1 group, it seems never to happen. With 2 rows and 2 groups, it happens to the first group (if the rows are members of different groups) every time. But 1-row groups don't seem to be the issue--in my use case, all groups have 2 members: summary rows for the first 7 groups style as expected, and the remainder of the summary rows are unformatted (in my case, there are 6 more groups). Easiest example (1 row and 1 group) shown in reprex.

library(tidyverse)
library(gt)
library(babynames)

numrows <- 1
numgroups <- 1

df <- tibble::tibble(
  name = sample(babynames$name, numrows), 
  value = runif(numrows, 50000, 2000000), 
  group = sample(letters[1:numgroups], numrows, replace = TRUE)
) 

gttbl <- df %>%
  group_by(group) %>%
  arrange(group) %>%
  gt(rowname_col = "name") %>%
  summary_rows(groups = TRUE, columns = vars(value), fns = list("sum")) %>%
  tab_style(style = list(cell_text(style = "italic")),
            locations = cells_summary())

gttbl

	value
a
Elijaha	1865195
sum	1,865,194.99

^{Created on 2020-01-21 by the reprex package (v0.3.0)}

[rich-iannone]

Thanks for this detailed look. I was able to reproduce all of the scenarios you outlined. This definitely requires a fix.

[j-krogh]

I have also had this issue and a similar one when trying to apply text transforms to cells that have been grouped. I suspect the underlying issue is the same.

[rich-iannone]

Testing this again, it seems to work now that #782 has been merged.