topic Re: How to create a feature layer view in AGOL in ArcGIS API for Python Questions

How to create a feature layer view in AGOL

Anonymous User — Thu, 13 Apr 2017 06:14:24 GMT

Does anyone know how you would, using the Python API, create a feature layer view in ArcGIS Online (or Portal 10.5 for that matter I guess)?

I'm referring here to the new views capability that arrived in AGOL back in December, that allows you to create a view of an existing hosted feature layer, but with different editing capabilities, field visibility, filtered features etc.

Cheers,

-Paul

Re: How to create a feature layer view in AGOL

Anonymous User — Thu, 13 Apr 2017 21:23:21 GMT

Paul, we don't support this yet. However we have reviewed this request and will consider for the subsequent versions.

Re: How to create a feature layer view in AGOL

jonathanharte — Wed, 06 Jun 2018 12:17:15 GMT

Hi Guys,

Has this capability been added yet? (create Feature Layer View on AGOL via Python API)

if not can you recommend an alternative approach? Its an important aspect that appears to be overlooked.

Regards

paulg

Re: How to create a feature layer view in AGOL

GregStevenson — Wed, 06 Jun 2018 21:14:46 GMT

Hi, the functionality is documented here:

arcgis.features.managers module — arcgis 1.4.1 documentation

Took us a while to find it too.

Thanks,

Greg

Re: How to create a feature layer view in AGOL

jonathanharte — Thu, 07 Jun 2018 06:50:45 GMT

Thanks Greg,

I eventually found that also, but since I’m new to this I assumes this only worked with Feature Collections... I’ll give it another go this morning. I don’t see any method for applying the ‘filter’ or ‘query definition’ to the view that’s created, would you have an idea on this also please - apologies for using you as technical help .... thanks again and I appreciate the response to the initial question , it helps as I’m just starting with this api.

Paulg

Re: How to create a feature layer view in AGOL

jonathanharte — Thu, 07 Jun 2018 14:39:06 GMT

Thanks Greg, worked a treat .... (eventually!)

Paulg

Re: How to create a feature layer view in AGOL

Anonymous User — Sun, 12 Dec 2021 09:21:33 GMT

You can set the view definition query by updating the layer definition (not sure if you can directly set it when adding layers to the definition, haven't tried).

view_layer.manager.update_definition({
    'viewDefinitionQuery': '1=1'
})

Re: How to create a feature layer view in AGOL

GregStevenson — Sun, 12 Dec 2021 09:21:35 GMT

A sample of mine that I looked up.

view = layer_name.manager.create_view(                                     
                            name='View_name',
                            allow_schema_changes=False,
                            updateable=True,
                            capabilities='Query,Create',
                            view_layers=None)‍‍‍‍‍‍

Re: How to create a feature layer view in AGOL

jonathanharte — Fri, 08 Jun 2018 06:31:31 GMT

Thanks Aaron,

an example of this process would be good in the samples section

thanks for the response, appreciated

paulg

Re: How to create a feature layer view in AGOL

TomPaschke — Wed, 04 Jul 2018 15:41:55 GMT

Hey guys,

Thanks for the solution! However, I only get a 500 error back when trying to set the 'viewDefinitionQuery' on a created view. Any idea what is wrong? Greg Stevenson‌ Aaron Pulver jonathan harte

Thanks!

Best,

Thomas

Re: How to create a feature layer view in AGOL

TomPaschke — Thu, 05 Jul 2018 13:32:56 GMT

Nevermind I found the mistake. Need to update the definition of the FeatureLayer not the FeatureLayerCollection

Re: How to create a feature layer view in AGOL

XabierVelasco_Echeverría — Sun, 12 Dec 2021 09:21:38 GMT

Hi,

I am able to create the view and update the definition for the feature view and the layers within. Everything works fine, except when I try to update the "fields" parameter in the layer's definition ('fields': listaCampos in the code below). Any ideas about this issue?

from arcgis.gis import GIS
gis = GIS("https://www.arcgis.com",usuario,contraseña)
servicio = gis.content.get(idProduccion)
flc = FeatureLayerCollection.fromitem(servicio)
vista = flc.manager.create_view(name='PRUEBAS6', spatial_reference=None, extent=None, allow_schema_changes=True, updateable=True, capabilities='Query,Update', view_layers=[flc.layers[1],flc.layers[3]])

vflc = FeatureLayerCollection.fromitem(gis.content.get(vista.itemid))
update_dict = {'maxRecordCount': 20000, 'allowGeometryUpdates':False} ## Se señalan 20.000 puesto que es el límite máximo de establecimientos consultables, que es la capa que más elementos puede tener (parcelas y naves solo se consideran las disponibles para el límite, etc.)
vflc.manager.update_definition(update_dict)


vflcAAE = vflc.layers[0]

listaCampos = vflcAAE.properties("fields")
for campo in listaCampos:
    if campo["name"] not in ['Promotor','Agua', 'Electricidad', 'Gas', 'Internet', 'Asociacionismo', 'PlanesPropuestas', 'IncidenciaPavimento', 'IncidenciaSaneamiento', 'IncidenciaElectricidad', 'IncidenciaTelecomunicaciones', 'IncidenciaGasNatural', 'IncidenciaLegal', 'IncidenciaAccesos', 'IncidenciaAlumbrado', 'IncidenciaCallejero', 'IncidenciaLicenciaActividad', 'Estado', 'DireccionUnidad', 'TelefonoUnidad', 'CorreoUnidad', 'AguaInfraestructuras', 'InternetInfraestructuras', 'GestionResiduos', 'EnergiaInfraestructuras', 'Aparcamiento', 'ServiciosComunesUnidad', 'ExcepcionQC', 'QC', 'ObsIncAlumbrado', 'ObsIncCallejero', 'ObsIncLicenciaActividad', 'ObsIncPavimento', 'ObsIncSaneamiento', 'ObsIncElectricidad', 'ObsIncTelecomunicaciones', 'ObsIncGasNatural', 'ObsIncLegal', 'ObsIncAccesos']:
       campo["editable"] = False
    campo["visible"] = True

update_dict = {'maxRecordCount': 2000, "viewDefinitionQuery" : "(cod_mun = '232') OR (cod_mun = '106') OR (cod_mun = '177') OR (last_edited_user = 'industriaEDER')", 'fields': listaCampos}
vflcAAE.manager.update_definition(update_dict)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Thanks,

Xabier

Re: How to create a feature layer view in AGOL

XabierVelasco_Echeverría — Wed, 08 Aug 2018 12:10:50 GMT

By the way, the error is:

TypeError: Object of type 'PropertyMap' is not JSON serializable

Re: How to create a feature layer view in AGOL

GregStevenson — Wed, 08 Aug 2018 20:36:46 GMT

Check that your output is a valid JSON and that listaCampos is in the format you're expecting.

Re: How to create a feature layer view in AGOL

TomPaschke — Sun, 12 Dec 2021 09:21:41 GMT

Hey Xabier,

this snippet is working for me:

viewFL = FeatureLayer.fromitem(view)
fieldList = "POINT_X","POINT_Y","SiteID","Sector"
current_fields = viewFL.properties.fields
new_fields = []
for element in current_fields:
 if element["alias"] not in fieldList:
 new_fields.append({"name":element["name"],"visible":True})
 else:
 new_fields.append({"name":element["name"],"visible":False})
update_definition = {"fields": new_fields}
viewFL.manager.update_definition(update_definition)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Hope that helps.

Cheers,

Thomas

Re: How to create a feature layer view in AGOL

XabierVelasco_Echeverría — Thu, 09 Aug 2018 11:03:10 GMT

Hi Thomas,

I have used your snippet to update the definition of the "fields" parameter. Now I do not get the error mentioned in my previous post, but when I look to the results, the "fields" parameter has not been updated. Surprisingly, other parameters in the same update are properly performed. i.e. 'maxRecordCount': or "viewDefinitionQuery". Any further ideas? I have noticed that if you change the popup configuration in the Visualization tab of the View in AGOL, it does not update "fields" either, although it seems to behave allright. It is quite wierd

Thanks,

Xabier

NOTE: I have found out that the configuration of the popup is not stored in the view definition, but in the item that references the view. I will try to manipulate the view's popup configuration from Item rather than FeatureLayer. Something similar to what is showed in this link for webmaps:

https://community.esri.com/thread/211499-configure-popup-attributes-programmatically-with-arcgis-api-for-python

Re: How to create a feature layer view in AGOL

Anonymous User — Thu, 09 Aug 2018 14:25:44 GMT

Has anyone figured out how to specify the view_layers?? Below are two samples. The first successfully creates a view. The second attempts to create a view but specifying only a single layer from the feature layer collection using view_layers. It doesn't work, returns an error "'FeatureLayerManager' object has no attribute 'manager'".

from arcgis import GIS, features
mygis = GIS("https://www.arcgis.com", username, password)

###create variable for feature layer collection where feature service has 20 layers

flc = features.managers.FeatureLayerCollectionManager('https://services6.arcgis.com/<organizaionid>/ArcGIS/rest/admin/services/<featureservicename>/FeatureServer',mygis)

Working Sample - creates view with all 20 layers

view = flc.create_view(name="GM_copy_burnview", capabilities = 'Create,Editing,Query,Sync,Update')

Failing Sample - attempts to create view with layer 14 only

view = flc.create_view(name="GM_copy_burnview", capabilities = 'Create,Editing,Query,Sync,Update', view_layers = [flc.layers[14]])

Re: How to create a feature layer view in AGOL

XabierVelasco_Echeverría — Sun, 12 Dec 2021 09:21:44 GMT

Hi Mitch,

This sample works fine:

gis = GIS("https://www.arcgis.com",usuario,contraseña)
servicio = gis.content.get(idProduccion) ## idProduccion is the itemid of the hosted feature service
flc = arcgis.features.FeatureLayerCollection.fromitem(servicio)
# Delete view if it exists
items = gis.content.search(nombreVista)
if items:
    vistaExistente = gis.content.get(items[0].itemid)    ## this is how you can get the itemid of a hosted feature service
    vistaExistente.delete()
# Crear vista    
vista = flc.manager.create_view(name=nombreVista, spatial_reference=None, extent=None, allow_schema_changes=True, updateable=True, capabilities='Query, Update', view_layers= [flc.layers[1],flc.layers[3]])  ## 1 and 3 are the layers in the hosted feature service that you want to include in the view, you define a list with all the layers you want in

‍‍‍‍‍‍‍‍‍‍‍

Xabier

Re: How to create a feature layer view in AGOL

Anonymous User — Tue, 14 Aug 2018 16:06:43 GMT

Thanks Xabier,

Unfortunately, that sample does not work for me. I get the error below. What modules are importing?

NameError: name 'arcgis' is not defined

Re: How to create a feature layer view in AGOL

XabierVelasco_Echeverría — Sun, 12 Dec 2021 09:21:46 GMT

Hi,

You should import the arcgis module (ArcGIS Python API):

import arcgis
from arcgis.gis import GIS

Regards,

Xabier