Hi,
I’m confused by the MSceneMessage.addConnectionFailedCallback behaviour...
Basically I try to create a callback for monitoring failed connections during
reopening of a file containing references...
Here is the code snippet for repro:
MSceneMessage addConnectionFailedCallbackimport maya.OpenMaya as omimport
maya.cmds as cmdsimport ostmpDir = os.environ["TMPDIR"]# Create basic scene to
be referencedcmds.file(new=True, f=True)locScene = cmds.file(rename="%s/loc.ma"
%tmpDir)cmds.spaceLocator()cmds.file(save=True, f=True, type="mayaAscii")#
Create master scene to reference loccmds.file(new=True,
f=True)cmds.file(locScene, r=True,
namespace="REF")cmds.setKeyframe('REF:locator1')masterScene =
cmds.file(rename="%s/master.ma" %tmpDir)cmds.file(save=True, f=True,
type="mayaAscii")# Reopen loc scene, lock an attr and savecmds.file(locScene,
f=True, o=True)cmds.setAttr("locator1.tx", l=True)cmds.file(save=True, f=True)#
Create callBackdef cb(srcPlug,destPlug,srcPlugName,dstPlugName,clientData):
print "callback triggered" print srcPlug print destPlug print
srcPlugName print dstPlugName print clientDatacb_id =
om.MSceneMessage.addConnectionFailedCallback(cb, "noData")# Reopening master
scene, shouldn't callback trigger??cmds.file(masterScene, f=True, o=True)#To
kill the callBack#om.MMessage.removeCallback(cb_id)
Not using Mixmax yet?
Maybe I don’t get it right, because the callback is not triggered in this
scenario.
To investigate, I tried to insert directly some code into the masterScene ma:
connectAttr “aFake.plug” “REF:locator1.tx”;
saving and reopening, and then the callback is executed: callback triggered
<maya.OpenMaya.MPlug; proxy of <Swig Object of type 'MPlug *' at 0x7d51c90> >
<maya.OpenMaya.MPlug; proxy of <Swig Object of type 'MPlug *' at 0x7d51ba0> >
this.plug REF.tx noData
So it must be that failing connections on a reference node placeHolder is not
caught by the callback. But as we can see in the details printed by the
callback, dstPlugName seems
incorrect.
Has anyone used this callback in this scenario? Didn’t find much infos on
google…
Any hint/suggestions would be very welcome.
Nicolas
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