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TreeBaseModel: protection from removed data

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This commit is contained in:
Doug Blank 2015-08-17 07:09:30 -04:00
parent 4fcdd8c4a6
commit de61d7158b
1 changed files with 9 additions and 2 deletions
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9
gramps/gui/views/treemodels/treebasemodel.py
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@ -905,7 +905,9 @@ class TreeBaseModel(GObject.GObject, Gtk.TreeModel, BaseModel):
val = self._get_value(node.handle, col, node.secondary) val = self._get_value(node.handle, col, node.secondary)
#GTK 3 should convert unicode objects automatically, but this #GTK 3 should convert unicode objects automatically, but this
# gives wrong column values, so convert for python 2.7 # gives wrong column values, so convert for python 2.7
if not isinstance(val, str): if val is None:
return ''
elif not isinstance(val, str):
return val.encode('utf-8') return val.encode('utf-8')
else: else:
return val return val
@ -927,6 +929,8 @@ class TreeBaseModel(GObject.GObject, Gtk.TreeModel, BaseModel):
if store_cache: if store_cache:
self.set_cached_value(handle, col, data) self.set_cached_value(handle, col, data)
if data is None:
return ''
if not secondary: if not secondary:
# None is used to indicate this column has no data # None is used to indicate this column has no data
if self.fmap[col] is None: if self.fmap[col] is None:
@ -952,7 +956,10 @@ class TreeBaseModel(GObject.GObject, Gtk.TreeModel, BaseModel):
pathlist = path.get_indices() pathlist = path.get_indices()
for index in pathlist: for index in pathlist:
_index = (-index - 1) if self.__reverse else index _index = (-index - 1) if self.__reverse else index
if len(node.children[_index]) > 0:
node = self.nodemap.node(node.children[_index][1]) node = self.nodemap.node(node.children[_index][1])
else:
return False, Gtk.TreeIter()
return True, self._get_iter(node) return True, self._get_iter(node)
def get_node_from_iter(self, iter): def get_node_from_iter(self, iter):