Changes between Version 7 and Version 8 of S3/S3Hierarchy

Timestamp:

05/21/14 21:34:26 (11 years ago)

Author:

Dominic König

Comment:

--

S3/S3Hierarchy

@@ -41 +41 @@
 [[Image(hierarchy_data_model.png)]]
 
-A typical data model for a hierarchical taxonomy could look like:
+A typical data model for a hierarchical taxonomy (with simple self-reference) could look like:
 
 {{{#!python
@@ -58 +58 @@
                        )
 }}}
+
+For a super-entity self-reference, the parent-field is defined as reference to the super entity:
+
+{{{#!python
+        tablename = "vulnerability_indicator"
+        define_table(tablename,
+                     # Instance table
+                     super_link("parameter_id", "stats_parameter"),
+                     # Parent-field for the hierarchy:
+                     Field("parent", "reference stats_parameter",
+                           ),
+                     Field("name",
+                           ),
+                     s3_comments(),
+                     *s3_meta_fields()
+                     )
+}}}
 == Configuration ==