Generic function to modify rows if write policy permits it

diff --git a/PLC/Table.py b/PLC/Table.py
index b811c62..86f60cb 100644 (file)
--- a/PLC/Table.py
+++ b/PLC/Table.py
@@ -436,3 +436,16 @@ class Table(list):
             key_field = self.classobj.primary_key
 
         return dict([(obj[key_field], obj) for obj in self])
+
+    def update_rows(self, update_spec):
+        """
+        Dispatch requested change to individual rows, if write policy permits it
+        """
+        if (self.modify_ok(values)):
+            for row in self:
+                for update in update_spec:
+                    key = update['key']
+                    type = update['type']
+                    value = update['value']
+                    add_fn = row.add_object(type, key)
+                    add_fn(value)