topic Re: Iterate all Survey123s in a portal to get FeatureLayer for each in ArcGIS API for Python Questions

Iterate all Survey123s in a portal to get FeatureLayer for each

Dirk_Vandervoort — Sun, 21 Apr 2024 03:30:01 GMT

Here's the code:

from arcgis.gis import GIS from arcgis.apps.survey123 import SurveyManager from arcgis.features import FeatureLayer gis = GIS() survey_manager = SurveyManager(gis) my_S123s = gis.content.search(query="type: Form", max_items=1000) # "Form" guarantees a Survey123 for s123 in my_S123s: the_survey = survey_manager.get(s123.itemid) aFLay = FeatureLayer(the_survey.parent_fl_url, gis) # do something with aFLay the_survey = None

As you can see, I am looping through all Survey123 Form items in my GIS, creating a Survey123, then creating a FeatureLayer using the parent_fl_id of the Survey123.

Performance is terrible. I expect to be able whip through them. I'm looking for a more efficient way to get from Survey123 to FeatureLayer.

How can I get the Feature Layer from the Survey123 Form without so much pain and suffering.

As always, TIA.

Re: Iterate all Survey123s in a portal to get FeatureLayer for each

Clubdebambos — Sun, 21 Apr 2024 10:38:45 GMT

Hi @Dirk_Vandervoort

I have not got a lot of Forms to test this but here is an option using the related_items() method for an item object.

from arcgis.gis import GIS ## access agol gis = GIS("home") ## get all forms my_S123s = gis.content.search(query="type: Form", max_items=1000) ## iterate through all forms for s123 in my_S123s: ## get form as an item object sform = gis.content.get(s123.id) ## assumes one feature layer per feature service ## you could iterate over feature layers instead to access all ## https://developers.arcgis.com/python/api-reference/arcgis.gis.toc.html#arcgis.gis.Item.related_items ## https://developers.arcgis.com/rest/users-groups-and-items/relationship-types.htm ## related_items returns a list aFLay = sform.related_items("Survey2Service")[0].layers[0] print(aFLay.properties)

Cheers