error returned by wfs$getFeatures
devineyfajr opened this issue · comments
I can't share data or geoserver address, but basically everything seems to work up to the query for the simple feature:
wfs = WFSClient$new(url=", serviceVersion="2.0.0",
user="admin", pwd="geoserver")
wfs$getCapabilities()
wfs$getFeatureTypes(T)
get capabilities
caps <- wfs$getCapabilities()
find feature type
ft <- caps$findFeatureTypeByName("name1:name2", exact = TRUE)
both of these return same message
sf1 = ft$getFeatures("name1:name2", cql_filter="cell_id='608524524752732159'")
sf1 = wfs$getFeatures("name1:name2", cql_filter="cell_id='609094538316742655'")
Error in CPL_read_ogr(dsn, layer, query, as.character(options), quiet, :
NULL error in sfc_from_ogr
Hi @devineyfajr , hard to debug without the URL example. If you can send it by email. Otherwise, there is something that miss in the cql_filter, you need to set it within URLencode. For the time being I didn't make it part of the function itself. This may be improved in a near future.
For the time being, do that:
sf1 = ft$getFeatures("name1:name2", cql_filter= URLencode("cell_id='608524524752732159'"))
That didn't help. I'b going to try some different layers.
That error was for a polygon layer. Point layers give a different error:
Error in CPL_read_ogr(dsn, layer, query, as.character(options), quiet, :
attempt to set index 2257/2257 in SET_STRING_ELT
The Store Type is Accumulo (Geomesa). I wonder if it could be that.
Sorry, I can't do that. Thanks for your help anyway.
Ok, so let's try in blind way:
- If the service can be requested anonymously (default behavior), then do not set these parameters, possibly this is what make the requests fail. If your WFS needs an authentification, specify user/pwd.
- In case maybe try to request a lower service version. Try
1.0.0or1.1.0.
Switching to 1.0.0 worked. Didn't try 1.1.0. Cool.
Great, you can try 1.1.0, it should work. On my side, I will run deeper tests on 2.0.0, to see if I detect issues with the geoservers I have under my umbrella. Best