SettingsError exception class implementation

lodel/leapi/datahandlers/references.py

@@ -74,4 +74,10 @@ class Hierarch(MultipleRef):
     # @param max_depth int | None :  limit of depth
     # @param max_childs int | Nine : maximum number of childs by nodes
     def __init__(self, back_reference, max_depth = None, max_childs = None, **kwargs):
-        super().__init__(back_reference = back_reference)
+        super().__init__(back_reference = back_reference, max_depth = max_depth, )
+
+    def _check_data_value(self, value):
+        value, expt = super()._check_data_value(value)
+        if isinstance(expt, Exception):
+            return None, expt
+        # determine depth with datasource

lodel/settings/utils.py

@@ -0,0 +1,25 @@
+#-*- coding: utf-8 -*-
+
+## @brief Error class for settings errors
+class SettingsError(Exception):
+    
+    ## @brief Instanciate a new SettingsError
+    # @param msg str : Error message
+    # @param key_id str : The key concerned by the error
+    def __init__(self, msg = "Unknown error", key_id = None, filename = None):
+        self.__msg = msg
+        self.__key_id = key_id
+        self.__filename = filename
+
+    def __repr__(self): return str(self)
+
+    def __str__(self):
+        res = "Error "
+        if self.__filename is not None:
+            res += "in file '%s' " % self.__filename
+        if self.__key_id is not None:
+            res += "for key '%s'" % self.__key_id
+
+        res += ": %s" % (self.__msg)
+        return res
+