Remove content from the connector — remove

Generic implementing of how to remove content from different connectors:

connector_dbi: Uses DBI::dbRemoveTable() to remove the table from a DBI connection.

connector_fs: Uses unlink() to delete the file.

Usage

remove_cnt(connector_object, name, ...)

# S3 method for class 'connector_dbi'
remove_cnt(connector_object, name, ...)

# S3 method for class 'connector_fs'
remove_cnt(connector_object, name, ...)

Arguments

connector_object: connector The connector object to use.
name: character Name of the content to read, write, or remove. Typically the table name.
...: Additional arguments passed to the method for the individual connector.

Value

invisible connector_object.

Examples

# Remove table in a DBI database
cnt <- connector_dbi$new(RSQLite::SQLite())

cnt |>
  write_cnt(iris, "iris") |>
  list_content_cnt()
#> [1] "iris"

cnt |>
  remove_cnt("iris") |>
  list_content_cnt()
#> character(0)

# Remove a file from the file storage
cnt <- connector_fs$new(tempdir())

cnt |>
  write_cnt("this is an example", "example.txt")
cnt |>
  list_content_cnt(pattern = "example.txt")
#> [1] "example.txt"

cnt |>
  read_cnt("example.txt")
#> [1] "this is an example"

cnt |>
  remove_cnt("example.txt")

cnt |>
  list_content_cnt(pattern = "example.txt")
#> character(0)