Avoid freeze by infinite recursion

qgis · Mar 6, 2018 · 6bad21f · 6bad21f
1 parent 53cf1a1
commit 6bad21f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/python/plugins/processing/modeler/ModelerAlgorithmProvider.py b/python/plugins/processing/modeler/ModelerAlgorithmProvider.py
@@ -60,6 +60,7 @@ def __init__(self):
         self.actions = [CreateNewModelAction(), OpenModelFromFileAction(), AddModelFromFileAction()]
         self.contextMenuActions = [EditModelAction(), DeleteModelAction()]
         self.algs = []
+        self.isLoading = False
 
         # must reload models if providers list is changed - previously unavailable algorithms
         # which models depend on may now be available
@@ -102,12 +103,16 @@ def supportsNonFileBasedOutput(self):
         return True
 
     def loadAlgorithms(self):
+        if self.isLoading:
+            return
+        self.isLoading = True
         self.algs = []
         folders = ModelerUtils.modelsFolders()
         for f in folders:
             self.loadFromFolder(f)
         for a in self.algs:
             self.addAlgorithm(a)
+        self.isLoading = False
 
     def loadFromFolder(self, folder):
         if not os.path.exists(folder):