If feature class is empty append

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12-13-2018 01:35 PM
CCWeedcontrol
Regular Contributor

How do you check if a feature class is empty and if it's empty append features to that feature class, if it's not not empty it would just pass or ignore the append. Would it best to use count or arcpy.da.SearchCursor?

with arcpy.da.SearchCursor(FcLyr, "SHAPE@")as cursor:
    for row in cursor:
        if row[0] is None:
            arcpy.Append_management(FcLyr2, FcLyr)          
        else:
            print 'Has features'‍‍‍‍‍‍
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JoeBorgione
MVP Esteemed Contributor

Take a look at get count: Get Count—Help | ArcGIS Desktop 

That should just about do it....

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3 Replies
JoeBorgione
MVP Esteemed Contributor

Take a look at get count: Get Count—Help | ArcGIS Desktop 

That should just about do it....
CCWeedcontrol
Regular Contributor

So i tried two different approaches. I am not sure which one is correct but they seem to be working.

Do these seem like reasonable approaches?

1st approach

result =  arcpy.GetCount_management(FcLyr)  
count = int(result.getOutput(0))
print(count)
if count == 0:  
 arcpy.Append_management(FcLyr2, FcLyr)  
 print "Layer empty, appending features " + FcLyr  
else:  
 print "layer has features " + FcLyr  

2nd approach

Count = int(arcpy.GetCount_management(FcLyr).getOutput(0))
if Count > 0:
    print("Lyr has features")
    
else:
    arcpy.Append_management(FcLyr2, FcLyr)
    print("Lyr append completed successfully")
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JoeBorgione
MVP Esteemed Contributor

Both seem okay to me: I like short and sweet so the 2nd approach.

Try it on some test data before you deploy it.

That should just about do it....
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