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Using arcpy.mapping, how to rename sde feature class in mxd files

AllenGuan1

We have many mxd files by different users and I want to change one SDE feature class name in all those mxd files without changing SDE connections. As a test, I thought this script would work, but I always get "Unable to change name" exception. Where am I wrong?

mxd = arcpy.mapping.MapDocument(r"L:\users\guana\test_fc_rename.mxd")
for df in arcpy.mapping.ListDataFrames(mxd):
    for lyr in arcpy.mapping.ListLayers(mxd,"",df):
        if lyr.supports("DATASOURCE"):
            if lyr.dataSource.find("SDE_GOM.LEXCO_LEASE") <> -1:
                (str1,str2,fname) = lyr.dataSource.split("\\")
                sdecon = str1 + "\\" + str2
                print "sdecon = " + sdecon
                try:
                    lyr.replaceDataSource(sdecon,"SDE_WORKSPACE","SDE_GOM.LEASE_LEXCO")
                except:
                    print "Unable to change name"

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MikeVolz

Can you please post what you get for the variable sdecon?

This needs to be a .sde file that you can find in ArcCatalog Add Spatial Database Connection.

AllenGuan1

Can you please post what you get for the variable sdecon?

This needs to be a .sde file that you can find in ArcCatalog Add Spatial Database Connection.

For this particular mxd file, the print is "sdecon = Database Connections\guana_npwd@usprd06.sde" (I also tried Database "sdecon=Connections\\guana_npwd@usprd06.sde"). But it can be very varied. Each user connects to sde DB using his own credential. Yes the documention says the first parameter for lyr.replaceDataSource should be a sde connection file, but I also saw an example somewhere that uses something like "Database Connections\user@sdedb.sde". We can not use a common connection file for all users. Should arcpy.mapping have a method that can rename a feature class without changing the workplace path?

Allen

MikeVolz

If you are using ArcGIS v10.1, I believe you need the full path to the connection file.

You have "Database Connections\guana_npwd@usprd06.sde",

where I have found at v10.1 you need something like:

c:\Users\Roaming\guana_npwd@usprd06.sde (or wherever your SDE connection file is found)

AllenGuan1

If you are using ArcGIS v10.1, I believe you need the full path to the connection file.

You have "Database Connections\guana_npwd@usprd06.sde",

where I have found at v10.1 you need something like:

c:\Users\Roaming\guana_npwd@usprd06.sde (or wherever your SDE connection file is found)

What I need is a simple function inside arcpy.mapping that can change a feature class name in mxd or layer file without having to touch the sde connection path or workspace path. I think arcpy.mapping totally misses this one. We can not use hundreds of sde connection files, each containing each user's sde credential, for batching processing. A single sde connection file only works for OS authentications, which we don't use.

MikeVolz

I would open a ticket with ESRI technical support at this point, as they may be able to point you to a simple function that change a feature class name in mxd or layer file besides the replaceDataSource method.

AllenGuan1

I would open a ticket with ESRI technical support at this point, as they may be able to point you to a simple function that change a feature class name in mxd or layer file besides the replaceDataSource method.

Yes, will ask them. Thanks.

markdenil

You should search the mxd to find the layer for which you want to change the source
use ListLayers()

The layer has a read only workspacePath property
which will be the connection file for an SDE layer

Use that workspacePath in the
replaceDataSource(workspace_path, workspace_type, {dataset_name}, {validate})
method on the same layer

This way, the existing layer tells you what SDE connection file is currently used
and you just re-use it with a new feature class in the same database.

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