coerce IDates to dates when standarizing dates

[gmatov]

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Please include a brief description of the problem with a code example:

Could cleanepi coerce IDates to dates when standarizing dates?

library(magrittr)

covid <- rio::import("https://epiverse-trace.github.io/tutorials-early/data/covid_simulated_data.csv") %>% 
  dplyr::as_tibble()

clean_covid <- covid %>% 
  cleanepi::standardize_column_names() %>% 
  cleanepi::remove_duplicates() %>% 
  cleanepi::standardize_dates(target_columns = c("date_onset"))
#> ! Found 1915 duplicated rows in the dataset.
#> ℹ Use `attr(dat, "report")[["duplicated_rows"]]` to access them, where "dat" is
#>   the object used to store the output from this operation.

clean_covid$date_onset %>% class()
#> [1] "IDate" "Date"

clean_covid %>% 
  cleanepi::timespan(target_column = "date_onset", end_date = Sys.Date(), span_unit ="days")
#> Warning in lubridate::as.period(end_date - data[[target_column]]): Incompatible
#> methods ("-.Date", "-.IDate") for "-"
#> Error in lubridate::as.period(end_date - data[[target_column]]): as.period is not defined for class 'IDate'as.period is not defined for class 'Date'

^{Created on 2025-08-13 with reprex v2.1.1}

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