Convert array to Featureset

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11-29-2023 11:32 AM
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AustinCanty1
New Contributor III

I have an expression that buffers a line feature and returns a list of intersecting parcel use code descriptions. Currently this outputs an array but I'd like to make it a featureset so I can use groupby to count up the totals for each use type. Everything in the code below works until I get to the dictionary part. Any suggestions?

Here is the dataset being queried: https://services1.arcgis.com/hGdibHYSPO59RG1h/arcgis/rest/services/L3_TAXPAR_POLY_ASSESS_gdb/Feature...

 

 

var ParcInt = Intersects(FeatureSetByName($map, "AllParcels",['USE_CODE']), BufferGeodetic($feature, 50, "feet"))
var arr_index = 0;
var NameList = []

var a ="";
for(var x in ParcInt){
  NameList[arr_index] = mid(x.USE_CODE,1,1)
  a =NameList[arr_index];
  NameList[arr_index]=decode(a,
"0","Multi-USe",
"1","Residential",
"2","Open Space",
"3","Commercial",
"4","Industrial",
"5","Personal Property",
"6","Forest Property - Chapter 61",
"7","Agricultural",
"8","Recreational Property",
"9","Exempt Property",
'');
    ++arr_index;;
}
//return namelist

var newDict = {
    fields: [
        { name: "Use Type", type: "esriFieldTypeString" },
        { name: "Count", type: "esriFieldTypeInteger" },  
    ],
    'geometryType': '',
    'features':NameList
};

return FeatureSet(Text(newDict)); 

 

 

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Accepted Solutions
DavidPike
MVP Frequent Contributor
var ParcInt = Intersects(FeatureSetByName($map, "AllParcels",['USE_CODE']), BufferGeodetic($feature, 50, "feet"))
var arr_index = 0;
var features = [];
var feat;

for(var x in ParcInt){
  useCode = mid(x.USE_CODE,1,1)
  useCode = decode(useCode,
"0","Multi-USe",
"1","Residential",
"2","Open Space",
"3","Commercial",
"4","Industrial",
"5","Personal Property",
"6","Forest Property - Chapter 61",
"7","Agricultural",
"8","Recreational Property",
"9","Exempt Property",
'');

  feat = { 
    'attributes': { 
      'UseType': useCode,   
   }
  };
  Push(features, feat);
}

var newDict = {
    'fields': [
        { name: "UseType", type: "esriFieldTypeString" }  
    ],
    'geometryType': '',
    'features':features
};

return FeatureSet(Text(newDict)); 

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3 Replies
DavidPike
MVP Frequent Contributor

maybe just missing ' ' around fields: [

Any traceback errors etc?

var newDict = {
    'fields': [
        { name: "Use Type", type: "esriFieldTypeString" },
        { name: "Count", type: "esriFieldTypeInteger" },  
    ],
    'geometryType': '',
    'features':NameList
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AustinCanty1
New Contributor III

I just added a screenshot. It's returning nulls in the featureset. I don't think I'm loading the data into the featureset correctly.

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DavidPike
MVP Frequent Contributor
var ParcInt = Intersects(FeatureSetByName($map, "AllParcels",['USE_CODE']), BufferGeodetic($feature, 50, "feet"))
var arr_index = 0;
var features = [];
var feat;

for(var x in ParcInt){
  useCode = mid(x.USE_CODE,1,1)
  useCode = decode(useCode,
"0","Multi-USe",
"1","Residential",
"2","Open Space",
"3","Commercial",
"4","Industrial",
"5","Personal Property",
"6","Forest Property - Chapter 61",
"7","Agricultural",
"8","Recreational Property",
"9","Exempt Property",
'');

  feat = { 
    'attributes': { 
      'UseType': useCode,   
   }
  };
  Push(features, feat);
}

var newDict = {
    'fields': [
        { name: "UseType", type: "esriFieldTypeString" }  
    ],
    'geometryType': '',
    'features':features
};

return FeatureSet(Text(newDict));