fix creating new collector with an empty list of ids

revitron · Oct 20, 2021 · 98c5fd8 · 98c5fd8
1 parent 479c612
commit 98c5fd8
Showing 1 changed file with 9 additions and 7 deletions.
diff --git a/revitron/filter.py b/revitron/filter.py
@@ -108,13 +108,15 @@ def _applyFilter(self, filterRule, paramName, value, evaluator, invert=False):
 				rule = filterRule(valueProvider, evaluator, value)
 			else:
 				rule = filterRule(valueProvider, evaluator, value, True)
-			_filter = Filter()
-			_filter.collector = revitron.DB.FilteredElementCollector(
-			    revitron.DOC,
-			    self.getElementIds()
-			)
-			_filter._parameterFilter(rule, invert)
-			filters.append(_filter)
+			_ids = self.getElementIds()
+			if _ids:
+				_filter = Filter()
+				_filter.collector = revitron.DB.FilteredElementCollector(
+				    revitron.DOC,
+				    _ids
+				)
+				_filter._parameterFilter(rule, invert)
+				filters.append(_filter)
 
 		if len(filters):
 			self.collector = filters[0].collector