Remove reference edits via Python?

[Fredrik Averpil]

Hi,

I’m having problems performing this via Python. If using the UI, you would right click the reference and choose to list the reference edits. Then you can select each edit and hit “Remove reference edit”.

I’ve successfully been able to list reference edits in various ways with:

cmds.referenceQuery( "soffaRN", editStrings=True )
Result: [u'parent -s -r "|kuddar:pillows1" "|model2670"',
 u'parent -s -r "|kuddarRNfosterParent1|pillow_04" "|model2670|kuddar:pillows1"',
 u'setAttr |soffa:model2670.translate -type "double3" -506.529608 65.636552 493.906544',
 u'setAttr |soffa:model2670.rotate -type "double3" 212.335372 0 -91.855932'] #

cmds.referenceQuery( "soffaRN", editNodes=True )
Result: [u'|kuddar:pillows1',
 u'|model2670',
 u'|kuddarRNfosterParent1|pillow_04',
 u'|model2670|kuddar:pillows1',
 u'|soffa:model2670',
 u'|soffa:model2670'] # 

cmds.referenceQuery( "soffaRN", editAttrs=True )
Result: [u'translate', u'rotate'] #

But I can’t seem to find a way to take any of those responses and actually remove each edit.
Any ideas?

Regards,
Fredrik

​

[Fredrik Averpil]

And if it makes it easier to somehow solve this ... I'm looking to remove *all* reference edits.

​

[Luke Harris]

I was doing this recently with pymel. Maya says that you can now remove ref edits while the reference is loaded, but I've noticed this isn't always the case, so I still unload it first for safety

for ref in pm.listReferences():

    ref.unload()

    for edit in ref.getReferenceEdits():

        # this way you can selectively remove edits

        pm.ReferenceEdit(edit, fileReference=ref).remove(force=True)

    ref.load()

But if you want to remove ALL edits it might be faster to do a clean(), which removes failed edits. If the ref is unloaded then all edits are failed :)

for ref in pm.listReferences():

    ref.unload()

    ref.clean()

    ref.load()

[Fredrik Averpil]

Hi Luke, this is very useful.

I save out all the edits to an editMB file before cleaning it. And when I save out that file as well as when I re-apply it later down the road, Maya crashes sporadically. Currently, I’m not unloading the reference when performing the edits export and the edits import. Perhaps that could be why it’s crashing on me? (it’s not always crashing)

Your pymel examples looks really clean. I managed to do it without pymel, but it’s a bit more cumbersome. I wonder if pymel is a more stable way of dealing with this?

Here’s what I did to remove all edits (on a loaded reference):

    # Remove all edits
    ref = 'myrefRN'
    nodes = cmds.referenceQuery( ref, editNodes=True )
    attr_types = cmds.referenceQuery( ref, editAttrs=True )
    for node in nodes:
        for attr_type in attr_types:
            for edit_command in ['addAttr', 'connectAttr', 'deleteAttr', 'disconnectAttr', 'parent', 'setAttr', 'lock', 'unlock']:
                cmds.referenceEdit( node+'.'+attr_type, failedEdits=True, successfulEdits=True, removeEdits=True, editCommand=edit_command)

// Fredrik

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[Fredrik Averpil]

Whoops … I meant to write that Maya crashes when I export the editMB (sometimes) and later down the road it also crashes (sometimes) when I save down the edits into the actual scene (“Save reference edits”).

By the way, this is how I save down the reference edits on a loaded reference:

filepath = '..............'
cmds.file(filepath, saveReference=True, force=True)

​

[Marcus Ottosson]

Crashing reference updates is surprisingly common I think. One stable way I've gone about it in the past is to update the .ma file. The results are the same, except Maya won't have to keep the old and new reference in memory while switching; which has been, in my experience, the cause of the majority of crashes.

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[Fredrik Averpil]

One stable way I've gone about it in the past is to update the .ma file.

How do you mean, exactly?
Do you mean launching a separate process such as maya -batch -command "[mel code]" -file hello.ma or do you mean reading in the .ma contents and modifying it with Python?

​

[Marcus Ottosson]

You can either modify the .ma in a text-editor, as it is text, or through Python via something like regular expressions. Each reference will be clearly prefixed by it's unique command in the header of the file, along with its absolute path.

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[Eduardo Grana]

Hello Fredrik,

Regarding the remove all edits,

have you tryed the referenceEdit command with the flag removeEdits?
probably is safer, but you have to unload the reference first.

Cheers!

Eduardo

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[Fredrik Averpil]

Yes, however, that just simply does not work at all.

Try this;

for ref in cmds.ls(references=True):
    cmds.referenceEdit( ref, removeEdits=True)

Here in my scene, nothing happens. No reference edits was removed.

[Eduardo Grana]

Hey Fredrik,

Your right, it doesn't do anything! hahaha

try this:

import maya.cmds as cmds

for ref in cmds.ls(references=True):

cmds.file(unloadReference=ref)

cmds.file (cr=ref) # cleanReference

thats how the reference editor does it...

(C:/Program Files/Autodesk/Maya2013/scripts/others/referenceEditorPanel.mel)

Cheers!

Eduardo

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[Fredrik Averpil]

Aaahhh... yes, that did work. Thank you!

[gemi...@thelittlegiantz.com]

Hi Frederik,

I faced the same issue with you, searching all over google. And i think i found the problem.

it seems you need to use failedEdits and successfulEdits flags into it.

ex: cmds.referenceEdit( ref, removeEdits=True, failedEdits =True, successfulEdits =True)


Good Luck !
Gemilang Rahmandhika

[verstaer...@googlemail.com]

thanks

my script was never working fully correctly ... only a couple of reference-edit were removed
now I realized that I have to take to unload and reload the refs... now it works perfectly

[verstaer...@googlemail.com]

just in case someone needs a flexible python script to remove certain edits:

def removeRefedits(attr='fileTextureName',edit_command = 'setAttr',mode='remove',refNode='ani:*RN*',unloadRef=True ):
'''
removes certain refedits - refnodes need to be unload before running the script
@refNode is important to search in the right refNodes - please adjust for current shot/asset you're working 'MDL:*RN*', 'ani:*RN*'
'''
if mode == 'return':
fileNodes = []
refs = cmds.ls(refNode)
for ref in refs:
#print ref

nodes = cmds.referenceQuery( ref, editNodes=True )
attr_types = cmds.referenceQuery( ref, editAttrs=True )

if mode == 'remove':
fileNodes = []
for node in nodes:
if 'file' in node:
fileNodes.append(node)
#print node
if mode == 'remove':
if unloadRef==True:
cmds.file(unloadReference=ref)
for fNode in fileNodes:
cmds.referenceEdit( fNode+'.'+attr, failedEdits=True, successfulEdits=True, removeEdits=True, editCommand=edit_command)
print 'removed refedits from',fNode
if unloadRef==True:
cmds.file(loadReference=ref)
if mode == 'return':
if attr == 'fileTextureName':
if fileNodes:
return fileNodes