ImportError: cannot import name securityhandlerhelper

[jmk201]

Hello, I installed ArcREST ver 3 and tried the updatefeature sample but I keep getting this error. Any help would be appreciated. thanks, Julie

[MikeMillerGIS]

That sample uses ArcRest helper, can you verify it was also install?

[DShokes]

Running python setup.py install did not build the hostedservices folder in site packages. I had to manually copy it over and my own error went away.

[jmk201]

Hey Mike, Something is not right . When I download the ArcREST3 , the samples that get downloaded looks like the samples from ArcREST1 . WHich probably means that the security handler codes are not installed either. How do I get to the correct download? Please help.

[MikeMillerGIS]

Not all the samples have been updated. Could you manually copy the arcrest and arcresthelper folders to here - C:\Python27\ArcGIS10.3\Lib\site-packages.

[jmk201]

where should I copy this from? I don't see it anywhere here.

[MikeMillerGIS]

https://github.com/Esri/ArcREST/tree/master/src

[jmk201]

Mike, Just right clicking doesn't let me download the folder. Looks like I need Subversion to download a subfolder from Github. Is there any other way? as I don't have subversion. Please let me know.

[MikeMillerGIS]

just download the entire package and then copy those folders from the zip.

[MikeMillerGIS]

https://github.com/Esri/ArcREST/archive/master.zip

[jmk201]

yes, that worked for me. Thanks a lot!! Hopefully the script will work now.

[jmk201]

hey Mike , I get the following error 'must declare the scalar variable'

{'updateResults': [{'objectId': -1, 'globalId': None, 'success': False, 'error': {'code': 1000, 'description': 'Must declare the scalar variable "@OBJECTID".'}}]}

I am working on the update feature sample. not sure where to declare the objectID . Here is an extract to get a better picture of what I am doing:

shh = securityhandlerhelper.securityhandlerhelper(securityinfo=securityinfo) if shh.valid == False: print shh.message else: fl= FeatureLayer( url=url, securityHandler=shh.securityhandler, proxy_port=proxy_port, proxy_url=proxy_url, initialize=True)

    out_fields = ['objectid']
    for fld in fieldInfo:
        out_fields.append(fld['FieldName'])

    resFeats = fl.query(where=sql,
                        out_fields="OBJECTID,SUITE,BUSINESS_NAME,TYPE,STATUS,COMMENTS".join(out_fields))
    for feat in resFeats:

        for fld in fieldInfo:
             feat.set_value(fld["FieldName"],fld['ValueToSet'])

    print fl.updateFeature(features=resFeats)

any idea where to declare the OBJECTID? please help!

[MikeMillerGIS]

Could you share the url to your service? Can you verify the OBJECTID field is being sent in the post/get?

[jmk201]

It's a secured service but I think error is probably when I am defining the sql statement.

id = 44081 url = 'http://services1.arcgis.com/MxjRokvPm7bjslyR/ArcGIS/rest/services/CollectBizNames/FeatureServer/1'

dt = local_time_to_online(datetime.datetime.now())

fieldInfo =[

            {
                'FieldName':'BUSINESS_NAME',
                'ValueToSet':'TEST',
                'objectid':'OBJECTID'
            }
           ]
sql = 'OBJECTID = ' + str(id)
proxy_port = None
proxy_url = None    

securityinfo = {}
securityinfo['security_type'] = 'Portal'#LDAP, NTLM, OAuth, Portal, PKI, ArcGIS
securityinfo['username'] = "zdsczdzd"
securityinfo['password'] = "zczczc"
securityinfo['org_url'] = "http://loudoungis.maps.arcgis.com/"
securityinfo['proxy_url'] = proxy_url
securityinfo['proxy_port'] = proxy_port
securityinfo['referer_url'] = None
securityinfo['token_url'] = None
securityinfo['certificatefile'] = None
securityinfo['keyfile'] = None
securityinfo['client_id'] = None
securityinfo['secret_id'] = None   

shh = securityhandlerhelper.securityhandlerhelper(securityinfo=securityinfo)
if shh.valid == False:
    print shh.message
else:
    fl= FeatureLayer(
        url=url,
        securityHandler=shh.securityhandler,
        proxy_port=proxy_port,
        proxy_url=proxy_url,
        initialize=True)

    out_fields = ['objectid']
    for fld in fieldInfo:
        out_fields.append(fld['FieldName'])

    resFeats = fl.query(where=sql,
                        out_fields="OBJECTID,SUITE,BUSINESS_NAME,TYPE,STATUS,COMMENTS".join(out_fields))
    for feat in resFeats:

        for fld in fieldInfo:
             feat.set_value(fld["FieldName"],fld['ValueToSet'])

    print fl.updateFeature(features=resFeats)

[MikeMillerGIS]

think your issue is with this line ="OBJECTID,SUITE,BUSINESS_NAME,TYPE,STATUS,COMMENTS".join(out_fields

you are using this string as your joining delimiter OBJECTID,SUITE,BUSINESS_NAME,TYPE,STATUS,COMMENTS"

you need to use this to join your out fields as a comma delimited list ",".join(out_fields)

[jmk201]

yes, you are correct. Looks like, I created that error myself:( I have a question, If I have an array of ids and array of values for the fields. what is the most efficient way to go about each value in the array? any thoughts?

[MikeMillerGIS]

maybe look at mixin http://stackoverflow.com/questions/533631/what-is-a-mixin-and-why-are-they-useful

[jmk201]

okay, thanks a lot Mike!!

[jmk201]

wov this looks way complex. All I want to do is to update more than one feature. can I not update more than one feature at a time using ArcREST?

[MikeMillerGIS]

You would need to construct a featureset, which contains a set of features https://github.com/Esri/ArcREST/blob/master/samples/update_features.py

[jmk201]

Mike, yes, I am working on the same sample and I am able to update one feature successfully. Now that I want to update more than one feature, can I not create a list of ids and list of field values and pass it in this sample?

I will look at construction a featureset option too. thanks!