custom validators

Author: bharathgs

dateandtimeparser/_validators.py

@@ -0,0 +1,16 @@
+def _datetime_format_type_validator(instance, attribute, value):
+    if value != None and not isinstance(value, list):
+        raise ValueError(
+            "datetime_format attribute can be of type 'list' or 'None'.")
+
+
+def _mode_type_validator(instance, attribute, value):
+    if value not in ["date", "datetime", "time"]:
+        raise ValueError(
+            "mode attribute's format can be of type 'date', 'time' or 'datetime'.")
+
+
+def _end_year_validator(instance, attribute, value):
+    if value < instance.start_year:
+        raise ValueError(
+            "'end_year' has to be greater than or equal to 'start_year'!")