topic Re: Create View of Hosted Feature Service using Python API in ArcGIS Online Questions

Create View of Hosted Feature Service using Python API

Anonymous User — Thu, 15 Feb 2018 18:17:28 GMT

Has anyone used the Python API to create Views of a hosted feature service on ArcGIS Online?

I have a hosted feature service (type = feature layer collection) and want to automate creation of Views. The arcgis.gis module has a method called create_service with an optional parameter to specify if the service is a View.

I've tested this on a dummy feature service. See the python below that results in an error ('Item' object has no attribute 'create_service').

from arcgis.gis import GIS

from arcgis.gis import ContentManager
mygis = GIS("https://www.arcgis.com", "username", "password")
GMitem = mygis.content.get('itemID')

GMitem.create_service(name = "GM_COPY_Reg1",is_view = TRUE)

Re: Create View of Hosted Feature Service using Python API

MicahBabinski — Thu, 15 Feb 2018 19:45:25 GMT

Hi Mitch,

I haven't actually used the ArcGIS Python API yet (I really need to get on that!). However, from the API docs it appears that the create_service is a method that is called on an instance of the ContentManager class. See the description for the ContentManager class:

Helper class for managing content in ArcGIS Online or ArcGIS Enterprise. This class is not created by users directly. An instance of this class, called ‘content’, is available as a property of the GIS object. Users call methods on this ‘content’ object to manipulate (create, get, search, etc) items.

So it sounds like the last line of code maybe should actually be:

mygis.create_service(name = "GM_COPY_Reg1",is_view = True)‍

Also, just a note on your syntax: the is_view parameter should probably be title case, not all caps. I think Python will only recognize a boolean as "True" and not "true" or "TRUE".

Hope this helps,

Micah

Re: Create View of Hosted Feature Service using Python API

Anonymous User — Fri, 16 Feb 2018 00:36:01 GMT

Thanks Micah,

That does help. I see now that the method creates an empty feature service.

Mitch

Re: Create View of Hosted Feature Service using Python API

MicahBabinski — Fri, 16 Feb 2018 14:45:59 GMT

Hi Mitch. Happy to help. I really need to get into that Python API it looks awesome. Mind marking me correct if that indeed did the trick?

Re: Create View of Hosted Feature Service using Python API

XabierVelasco_Echeverría — Wed, 08 Aug 2018 07:46:15 GMT

Hi Mitch,

I achieved the same, an empty feature service view. Did you make it work properly? i.e. view related to feature service...

Xabier

Re: Create View of Hosted Feature Service using Python API

XabierVelasco_Echeverría — Wed, 08 Aug 2018 10:00:33 GMT

Ok, here it is the answer

https://community.esri.com/thread/193315-how-to-create-a-feature-layer-view-in-agol

Re: Create View of Hosted Feature Service using Python API

Anonymous User — Thu, 09 Aug 2018 13:56:03 GMT

Xabier,

I did get it to work with the below in the past. But it now no longer works, I get a "Key Error: 'itemId'". I also could never figure out how to specify the view_layers portion.

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

flc = features.managers.FeatureLayerCollectionManager(url of feature server,mygis)
flc.create_view("GM_copy_view", capabilities = 'Update,Editing,Query,Create,Sync')

Re: Create View of Hosted Feature Service using Python API

GaëtanLAVENU — Mon, 22 Oct 2018 17:52:28 GMT

Hi,

I also tried to get it work with the last version of the API (1.5) following the documentation but I get the same error message. Is there a chance to get an answer from Esri Python team ?

Re: Create View of Hosted Feature Service using Python API

YannKACENELEN — Mon, 29 Oct 2018 14:32:06 GMT

Sinon ça va l’ami ?

Ai eu le plaisir de voir ta compagne en Webex il y a 1 mois ☺

La bise à vous deux,

- Y

De : Gaëtan LAVENU

Envoyé : lundi 22 octobre 2018 19:53

À : Kacenelen Yann

Objet : Re: - Re: Create View of Hosted Feature Service using Python API

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Re: Create View of Hosted Feature Service using Python API

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Re: Create View of Hosted Feature Service using Python API

XabierVelasco_Echeverría — Fri, 10 Dec 2021 20:40:37 GMT

Hi,

This function works ok

def crearVista(coleccionFeatures, nombreVista, permisos, capas, edicionGeometria, limiteConsulta, gruposAGOL):
    global vflc ## Declaración uso variable global para usarla fuera de la función
    global itemVista
    vflc = 0
    itemVista = 0
    # Eliminar vista si existe
    print("nombreVista: " + nombreVista)
    items = gis.content.search(nombreVista, "Feature Layer Collection")
    if items:
        vistaExistente = gis.content.get(items[0].itemid)
        print("vista para eliminar: " + str(items[0].itemid))
        vistaExistente.delete()
        print("vista eliminada")
    # Crear vista    
    vista = coleccionFeatures.manager.create_view(name=nombreVista, spatial_reference=None, extent=None, allow_schema_changes=True, updateable=True, capabilities=permisos, view_layers=capas)
    itemVista = gis.content.get(vista.itemid)
    print("itemVista: " + str(vista.itemid))
    vflc = arcgis.features.FeatureLayerCollection.fromitem(itemVista)
    print("vflc: " + str(vflc))
    update_dict = {'maxRecordCount': limiteConsulta, 'allowGeometryUpdates': edicionGeometria} ## Se señalan 25.000 puesto que es el límite máximo de todos los elementos consultables, incluyendo establecimientos 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)
    for grupo in gruposAGOL:
        print(grupo)
        idGrupo = gis.groups.search(grupo)[0].groupid
        print(idGrupo)
        if idGrupo:
            itemVista.share(groups=idGrupo)
        else:
            msg = u"ATENCIÓN: grupo " + grupo + u" sin asignar permisos para el servicio de vista " + nombreVista
            print(msg)
            arcpy.AddWarning(msg)
    return
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: Create View of Hosted Feature Service using Python API

YannKACENELEN — Mon, 29 Oct 2018 14:44:06 GMT

Unwanted reply…

How can I be unsubscribed from this thread?

De : Xabier Velasco Echeverría

Envoyé : lundi 29 octobre 2018 15:40

À : Kacenelen Yann

Objet : Re: - Re: Create View of Hosted Feature Service using Python API

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Re: Create View of Hosted Feature Service using Python API

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Re: Create View of Hosted Feature Service using Python API

GaëtanLAVENU — Wed, 31 Oct 2018 08:40:09 GMT

Hi Xabier,

Thank you for your answer. Creating the view and then updating its definition is the good the solution for my Python script.

Thanks again for your help,

Regards,

Gaëtan.

Re: Create View of Hosted Feature Service using Python API

RobertMEIER — Tue, 07 May 2019 15:36:33 GMT

I found this thread very helpful, I just needed to create a hosted view that had a definition query, very simple and just a few lines of code.

make sure you have the feature layer collection referenced

<item_id> is the item number of the hosted feature layer you want to create the view from.

from arcgis.gis import GIS
from arcgis.features import FeatureSet, Feature, FeatureLayer,FeatureCollection,FeatureLayerCollection

username = <uname>
password = <pwd>
gis = GIS(<agol_url>, username, password)

expItem = gis.content.get(<item_id>)
flc = FeatureLayerCollection.fromitem(expItem)

theVw = flc.manager.create_view(name="<layer_name>",capabilities='Query',view_layers=[flc.layers[0]])

theVw.layers[0].manager.update_definition({'viewDefinitionQuery': 'placename is not null'})

I hope people find this simple example helpful

-bert

Re: Create View of Hosted Feature Service using Python API

José_AntonioAnta_Viguera — Wed, 16 Oct 2019 14:03:45 GMT

Hi Xabier
its function "def createVista (...)" works very well with the Feature Layer layer with geometry.
Thank you.
I need to work with a "table." I need to create a view from an alphanumeric TABLE.
The collectionFeatures.manager.create_view (….) Function fails to enter the spatial reference parameter.
even setting the value "None".
Do you know how to make a view from a Table Hosted service?

Thank you

Re: Create View of Hosted Feature Service using Python API

XabierVelasco_Echeverría — Thu, 17 Oct 2019 06:45:31 GMT

Hi,

Currently it is not possible to create a view from a hosted table using the ArcGIS Python API. That is the answer I got from ESRI. I suggested an ArcGIS Idea, feel free to vote for it

https://community.esri.com/ideas/16757-python-api-create-view-for-hosted-table

De: José Antonio Anta Viguera

Enviado el: miércoles, 16 de octubre de 2019 16:05

Para: Velasco Echeverria, Xabier (NASUVINSA)

Asunto: Re: - Re: Create View of Hosted Feature Service using Python API

GeoNet, The Esri Community | GIS and Geospatial Professional Community <https://community.esri.com/?et=watches.email.thread>

Re: Create View of Hosted Feature Service using Python API

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Re: Create View of Hosted Feature Service using Python API

José_AntonioAnta_Viguera — Thu, 17 Oct 2019 07:52:48 GMT

thank you very much

I will solve my project using Javascript with the REST API directly