Review callback.py documentation.

docs/api/generated/plugin_dbui.callback.INHIBIT_DELETE_UNDEF.rst

+plugin_dbui.callback.INHIBIT_DELETE_UNDEF
+=========================================
+
+.. currentmodule:: plugin_dbui.callback
+
+.. autofunction:: INHIBIT_DELETE_UNDEF
\ No newline at end of file

docs/api/generated/plugin_dbui.callback.INHIBIT_UPDATE_UNDEF.rst

+plugin_dbui.callback.INHIBIT_UPDATE_UNDEF
+=========================================
+
+.. currentmodule:: plugin_dbui.callback
+
+.. autofunction:: INHIBIT_UPDATE_UNDEF
\ No newline at end of file

modules/plugin_dbui/callback.py

@@ -8,13 +8,14 @@ from gluon import current
 
 
 def INHIBIT_DELETE_UNDEF(set):
-    """Delete the row containing undefined value is not allowed
+    """Inhibit the delete of the record containing the undefined value.
 
     Args:
         set (gluon.dal.Set):
+            set of records used for deleted
 
     Returns:
-        bool:
+        true when the record contains the undefined value.
 
     """
     db, T = current.globalenv['db'], current.T
@@ -35,13 +36,17 @@ def INHIBIT_DELETE_UNDEF(set):
 
 
 def INHIBIT_UPDATE_UNDEF(set, values):
-    """Update the row containing undefined value is not allowed
+    """Inhibit the update the row containing the undefined value.
 
     Args:
         set (gluon.dal.Set):
+            set of records for update
+
+        values (dict):
+            dictionary of database field used in the update.
 
     Returns:
-        bool:
+        true when the record contains the undefined value.
 
     """
     db, T = current.globalenv['db'], current.T