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Add error message for possible bugs in MaterialManager

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CURA-5056
This commit is contained in:
Lipu Fei 2018-03-07 11:42:57 +01:00
parent c0d55ac2a8
commit 27cce56467
1 changed files with 7 additions and 0 deletions
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7
cura/Machines/MaterialManager.py
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@ -102,6 +102,13 @@ class MaterialManager(QObject):
# GUID -> material group list
self._guid_material_groups_map = defaultdict(list)
for root_material_id, material_group in self._material_group_map.items():
# This can happen when we are updating with incomplete data.
if material_group.root_material_node is None:
Logger.log("e", "Missing root material node for [%s]. Probably caused by update using incomplete data."
" Check all related signals for further debugging.",
material_group.name)
# Do nothing here, we wait for a next signal to trigger an update.
return
guid = material_group.root_material_node.metadata["GUID"]
self._guid_material_groups_map[guid].append(material_group)