addLayerToGroup Mapping Class help

ZacharyUhlmann1 — Tue, 20 Dec 2022 21:34:29 GMT

Hi. I am trying to add 30+ layers from same feature class to the Table of Contents (TOC) into groups, each with it's own definition query. My attribute table has this basic design (note that I simplified it and reduced size):

site	spp1	spp2	spp3	spp4	spp5
site1	3	3	0	1	5
site2	0	3	12	0	6
site3	4	0	5	0	8
site4	6	0	0	8	0
site5	0	0	4	12	3

Each Site includes an attribute for each species (spp1,spp2,etc.) with the value = count - i.e. at Site 1 there were 3 spp2.

I ultimately want one layer group per site in my TOC. Each layer group receives a layer per species. In this example, each site will get 5 layers - one for each spp.

I am able to create the Groups

# 1) CREATE GROUPS p = arcpy.mp.ArcGISProject('current') m = p.listMaps('site_map')[0] # Add each group to Table of Contents # Each group will get multiple layers sites = ['site1','site2','site3','site4'] group_layers = [] for s in sites: group_layers.append(m.createGroupLayer(s))

I am able to then add layers to each group BUT I cannot add a defQuery per layer. I don't know how to access the defQuery Property from the groupLayer attribute in this loop via (line 9).

lyrx = r'path/to/data.lyrx' lyr_file = arcpy.mp.LayerFile(lyrx) sites = ['site1','site2','site3','site4','site5'] target_cols = ['spp1','spp2','spp3','spp4','spp5'] for s in sites: gl = [gl for gl in group_layers if gl.name == s] gl = gl[0] for tc in target_cols: lyr = m.addLayerToGroup(gl, lyr_file) def_q = r'site=="{}"'.format(s) lyr.definitionQuery(def_q)

Is there a way to set a definitionQuery via the defintionQuery property on each layer, preferably within this for loop? Note that I receive this error for line 11:

AttributeError: The attribute 'definitionQuery' is not supported on this instance of Layer.

Note that this obviously works

m.listLayers()[0].definitionQuery='def query whatever'

but I would love to do it within the for loop via the groupLayer property.

topic addLayerToGroup Mapping Class help in ArcGIS Pro Questions

addLayerToGroup Mapping Class help