Whoops, I now find my second approach doesn't work, so back to the
original question, what's the neatest way to remove nodes matching a
criteria?
Cheers -Terry
On Wed, 18 Jun 2008 15:36:39 -0500
Terry Brown <[EMAIL PROTECTED]> wrote:
>
> What's the best way do delete nodes?
>
> I find myself writing this:
>
> def cmd_PurgeVanishedFiles(c):
> """Remove files no longer present, i.e. "*filename*" entries."""
> p = c.currentPosition()
> c.beginUpdate()
> try:
> cull = [child.copy() for child in p.children_iter()
> if child.headString().startswith('*')] if cull:
> c.setChanged(True)
> cull.reverse()
> for child in cull:
> g.es(child.headString())
> child.doDelete()
> finally:
> c.endUpdate()
>
> to remove all the children of a node matching a criteria.
>
> Is there a better way?
>
> Ooops, answering my own question:
>
> def cmd_PurgeVanishedFiles(c):
> """Remove files no longer present, i.e. "*filename*" entries."""
> p = c.currentPosition()
> c.beginUpdate()
> try:
> for child in p.children_iter(copy=True):
> if child.headString().startswith('*'):
> c.setChanged(True)
> g.es(child.headString())
> child.doDelete()
> finally:
> c.endUpdate()
>
> i.e. use copy=True, and then the above works, it didn't work without
> copy=True. Still kind of scares me, feels like the cartoon character
> running across the bridge as it disintegrates behind it, but I guess
> that's ok.
>
> Cheers -Terry
>
> >
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