OpenACS Permissions Tediously Explained

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+OpenACS Permissions Tediously Explained

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OpenACS Permissions Tediously Explained

by Vadim Nasardinov. Modified and converted to Docbook XML by Roberto Mello

The code has been modified since this document was written so it is now out of date. See this forum thread.

Overview

The general permissions system has a relatively complex data model in OpenACS. @@ -100,7 +100,7 @@

Context Hierarchy

Suppose objects A, B, ..., and F form the following hierarchy. -

Table�8.1.�Context Hierarchy Example

Table�9.1.�Context Hierarchy Example

object_id=10

object_id=20 @@ -116,7 +116,7 @@ This can be represented in the acs_objects table by the following entries: -

Table�8.2.�acs_objects example data

object_id	context_id
20	10
30	10
40	20
50	20
60	30

Table�9.2.�acs_objects example data

object_id	context_id
20	10
30	10
40	20
50	20
60	30

The first entry tells us that object 20 is the descendant of object 10, and the third entry shows that object 40 is the descendant of object 20. By running a CONNECT BY query,