[Maturing]

submission_export(
  local_dir = here::here(),
  overwrite = TRUE,
  media = TRUE,
  repeats = TRUE,
  pid = get_default_pid(),
  fid = get_default_fid(),
  url = get_default_url(),
  un = get_default_un(),
  pw = get_default_pw(),
  pp = get_default_pp(),
  retries = get_retries(),
  odkc_version = get_default_odkc_version(),
  verbose = get_ru_verbose()
)

Arguments

local_dir

The local folder to save the downloaded files to, default: here::here.

overwrite

Whether to overwrite previously downloaded zip files, default: FALSE

media

Whether to include media attachments, default: TRUE. This feature only has effect on ODK Central v1.1 and higher. Setting this feature to FALSE with an odkc_version < 1.1 and will display a verbose noop message, but still return all media attachments.

repeats

Whether to include repeat data (if TRUE), or whether to return the root table only (FALSE). Default: TRUE. Requesting repeats=FALSE will also omit any media, and override the parameter media. Setting this feature to FALSE with an odkc_version < 1.1 and will display a verbose noop message, but still include all repeat data.

pid

The numeric ID of the project, e.g.: 2.

Default: get_default_pid.

Set default pid through ru_setup(pid="...").

See vignette("Setup", package = "ruODK").

fid

The alphanumeric form ID, e.g. "build_Spotlighting-0-8_1559885147".

Default: get_default_fid.

Set default fid through ru_setup(fid="...").

See vignette("Setup", package = "ruODK").

url

The ODK Central base URL without trailing slash.

Default: get_default_url.

Set default url through ru_setup(url="...").

See vignette("Setup", package = "ruODK").

un

The ODK Central username (an email address). Default: get_default_un. Set default un through ru_setup(un="..."). See vignette("Setup", package = "ruODK").

pw

The ODK Central password. Default: get_default_pw. Set default pw through ru_setup(pw="..."). See vignette("Setup", package = "ruODK").

pp

The passphrase for an encrypted form.

Default: NULL.

Passphrases can be stored e.g. as environment variables.

See vignette("Setup", package = "ruODK").

retries

The number of attempts to retrieve a web resource.

This parameter is given to RETRY(times = retries).

Default: 3.

odkc_version

The ODK Central version as decimal number (major.minor). ruODK uses this parameter to adjust for breaking changes in ODK Central.

Default: get_default_odkc_version or 1.1 if unset.

Set default get_default_odkc_version through ru_setup(odkc_version=1.1).

See vignette("Setup", package = "ruODK").

verbose

Whether to display debug messages or not.

Read vignette("setup", package = "ruODK") to learn how ruODK's verbosity can be set globally or per function.

Value

The absolute path to the exported ZIP file named after the form ID. The exported ZIP file will have the extension .zip unless only the root table was requested (with repeats=FALSE), in which case the exported file will have the extension .csv. In contrast to ODK Central, which exports to submissions.csv(.zip), the exported ZIP file is named after the form to avoid accidentally overwriting the ZIP export from another form.

Details

This function exports all the Submission data associated with a Form as one zip file containing one or more CSV files, as well as all multimedia attachments associated with the included Submissions.

For an incremental download of a subset of submissions, use submission_list or odata_submission_get with filter queries.

Contents

The inclusion of subtables (from repeating form groups) can be toggled through repeats, whereas the inclusion of media attachments can be toggled through media.

Download location

The file will be downloaded to the project root unless specified otherwise (via local_dir). Subsequently, the zip file can be extracted. Attachment filenames (e.g. "12345.jpg") should be prepended with media (resulting in e.g. media/12345.jpg) in order to represent the relative path to the actual attachment file (as extracted from the zip file).

Encryption

ODK Central supports two modes of encryption - learn about them here. ruODK supports project managed encryption, however the support is limited to exactly one encryption key. The supplied passphrase will be used against the first returned encryption key. Remaining encryption keys are ignored by ruODK.

If an incorrect passphrase is given, the request is terminated immediately. It has been reported that multiple requests with incorrect passphrases can crash ODK Central.

See also

Examples

if (FALSE) { # See vignette("setup") for setup and authentication options # ruODK::ru_setup(svc = "....svc", un = "[email protected]", pw = "...") se <- submission_export() # Unzip and inspect the loot t <- tempdir() f <- unzip(se, exdir = t) fs::dir_ls(t) fid <- get_test_fid() sub <- fs::path(t, glue::glue("{fid}.csv")) %>% readr::read_csv() sub %>% knitr::kable(.) }