topic Re: Quick Method to Create Views for Multiple Features (one view per feature) in ArcGIS Online Questions

Quick Method to Create Views for Multiple Features (one view per feature)

wcozzens — Tue, 21 Dec 2021 22:24:36 GMT

I have a web map with roughly 50 features and counting. I'm looking for a quick and dirty way to create a view of each layer where a given field is null. The good news is that this field exists in each of the 50 features.

Is there an easy way to do this?

Thanks!

Mike

Re: Quick Method to Create Views for Multiple Features (one view per feature)

Kanin — Wed, 22 Dec 2021 06:53:37 GMT

You can try using ArcGIS API for Python to automate view creation. This can be done via ArcGIS Notebooks in ArcGIS Online or ArcGIS Pro. Please see more steps at the links:

Best regards,
Kanin

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Re: Quick Method to Create Views for Multiple Features (one view per feature)

wcozzens — Wed, 29 Dec 2021 19:50:30 GMT

@Kanin ,

Thanks for pointing me in the right direction. Here's the code snippet that I used:

from arcgis.gis import GIS from arcgis.features import FeatureLayerCollection from arcgis.mapping import WebMap gis = GIS("<portal>", "user","pw") fl_wm_search = gis.content.get("web_map_item_id") fl_wm_object = WebMap(fl_wm_search) fl_layers = {item.itemId for item in fl_wm_object.layers} update_dict = {"viewDefinitionQuery" : "field1 = ''"} for f in fl_layers: source_search = gis.content.search(f)[0] source_flc = FeatureLayerCollection.fromitem(source_search) new_view = source_flc.manager.create_view(name="{}_Null".format(source_search.title.replace(" ","_"))) view_search = gis.content.search(new_view.title)[0] view_flc = FeatureLayerCollection.fromitem(view_search) service_layer = view_flc.layers for i in range (len(service_layer)): service_layer[i].manager.update_definition(update_dict) view_search.move("Home Folder")

Happy New Years!

Best,

Mike

Re: Quick Method to Create Views for Multiple Features (one view per feature)

Kanin — Thu, 30 Dec 2021 01:28:22 GMT

Hello Mike,

Glad this works for you. Happy New Years to you too!

Cheers,
Kanin

Re: Quick Method to Create Views for Multiple Features (one view per feature)

RamonWilliams — Tue, 05 Sep 2023 20:34:59 GMT

Hello All,

When creating the view how do, I make the script update the query for more than one layer. My Feature class has about 55 layers.

using this the line below will update the first sub layer and not the other one's that is in my feature class

service_layer = view_flc.layers[0]

Thanks

ramon