modify: Add Features to Feature Layer

In arcgislayers: An Interface to ArcGIS Data Services

Add Features to Feature Layer

Description

Delete features from a feature layer based on object ID, a where clause, or a spatial filter.

Usage

add_features(
  x,
  .data,
  chunk_size = 2000,
  match_on = c("name", "alias"),
  rollback_on_failure = TRUE,
  token = arc_token()
)

update_features(
  x,
  .data,
  match_on = c("name", "alias"),
  token = arc_token(),
  rollback_on_failure = TRUE,
  ...
)

delete_features(
  x,
  object_ids = NULL,
  where = NULL,
  filter_geom = NULL,
  predicate = "intersects",
  rollback_on_failure = TRUE,
  token = arc_token(),
  ...
)

Arguments

x	an object of class FeatureLayer
.data	an object of class sf or data.frame
chunk_size	the maximum number of features to add at a time
match_on	whether to match on the alias or the field name. Default, the alias. See Details for more.
rollback_on_failure	default TRUE. Specifies whether the edits should be applied only if all submitted edits succeed.
token	default arc_token(). An httr2_token.
...	additional query parameters passed to the API.
object_ids	a numeric vector of object IDs to be deleted.
where	a simple SQL where statement indicating which features should be deleted. When the where statement evaluates to TRUE, those values will be deleted.
filter_geom	an object of class bbox, sfc or sfg used to filter query results based on a predicate function.
predicate	Spatial predicate to use with filter_geom. Default "intersects". Possible options are "intersects", "contains", "crosses", "overlaps", "touches", and "within".

Details

For a more detailed guide to adding, updating, and deleting features, view the tutorial on the R-ArcGIS Bridge website.

Regarding the match_on argument:when publishing an object to an ArcGIS Portal from R, the object's names are provided as the alias. The object's names are subject to change according to the standards of the ArcGIS REST API. For example. "Sepal.Length" is changed to "Sepal_Width" in the name field but the alias remains "Sepal.Length". For that reason, we match on the alias name by default. Change this argument to match based on the field name.

Value

• add_features() returns a data.frame with columns objectId, uniqueId, globalId, success

• update_features() returns a list with an element named updateResults which is a data.frame with columns objectId, uniqueId, globalId, success

• delete_features() returns a list with an element named deleteResults which is a data.frame with columns objectId, uniqueId, globalId, success

Examples

## Not run: 
  # this is pseudo-code and will not work
  flayer <- arc_open(furl)

  # add sf objects to existing feature service
  add_features(flayer, sfobj)

  # delete all features
  delete_features(flayer, where = "1 = 1")

  # update features
  update_features(flayer, dfobj)

## End(Not run)

arcgislayers documentation built on Sept. 30, 2024, 9:45 a.m.