Changes between Version 3 and Version 4 of IS_ONE_OF

Timestamp:

08/23/09 13:13:45 (15 years ago)

Author:

Dominic König

Comment:

--

IS_ONE_OF

@@ -1 +1 @@
 = IS_ONE_OF Validator =
 
-The IS_ONE_OF() validator is a custom version of web2py's IS_IN_DB() for foreign key lookups in a key table. In forms, the respective field will be rendered as a drop-down field.
+The '''IS_ONE_OF()''' validator is a custom version of web2py's IS_IN_DB() for foreign key lookups in a key table. In forms, the respective field will be rendered as a drop-down field.
 
 Other than IS_IN_DB, the IS_ONE_OF validator is deletion status sensitive, i.e. records in the key table that are flagged as 'deleted' will be ignored. 
@@ -8 +8 @@
 
 Usage:
-  db.table.field.requires = IS_NULL_OR(IS_ONE_OF(db, ''"keytable.keyfield"'', ''represent'', filterby=''"fieldname"'', filter_opts=''options''))
+  db.table.field.requires = IS_ONE_OF(db, ''"keytable.keyfield"'', ''represent'', filterby=''"fieldname"'', filter_opts=''options'')
 
   - ''keytable'' = Name of the key table
@@ -22 +22 @@
     - Without represent and if no 'name' field can be detected in the table, the keyfield itself will be used as option label.
     - If filterby is specified, the drop-down fields get sorted by this field.
+    - IS_ONE_OF can be cascaded through IS_NULL_OR to include empty selection
 
 Example: