Update of
/var/cvs/contributions/didactor2/src/education/java/nl/didactor/education
In directory james.mmbase.org:/tmp/cvs-serv23806/java/nl/didactor/education
Modified Files:
Functions.java
Log Message:
added a function 'education' on learnobjects, and a function 'sequence'.
See also:
http://cvs.mmbase.org/viewcvs/contributions/didactor2/src/education/java/nl/didactor/education
Index: Functions.java
===================================================================
RCS file:
/var/cvs/contributions/didactor2/src/education/java/nl/didactor/education/Functions.java,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -b -r1.7 -r1.8
--- Functions.java 2 Jan 2009 09:36:10 -0000 1.7
+++ Functions.java 7 Jan 2009 17:08:54 -0000 1.8
@@ -9,7 +9,7 @@
/**
* Several functions on mmbase nodes which are used by didactor.
* @author Michiel Meeuwissen
- * @version $Id: Functions.java,v 1.7 2009/01/02 09:36:10 michiel Exp $
+ * @version $Id: Functions.java,v 1.8 2009/01/07 17:08:54 michiel Exp $
*/
public class Functions {
protected final static Logger log =
Logging.getLoggerInstance(Functions.class);
@@ -41,6 +41,53 @@
return result;
}
+
+ /**
+ * Returns the education associated with the current learnobject
+ */
+ public Node education() {
+ Node parent = null;
+ NodeList parents = node.getRelatedNodes("learnobjects", "posrel",
"source");
+ while (parents.size() > 0) {
+ if (parents.size() > 1) {
+ log.warn("Node " + node.getNumber() + " has more than 1 posrel
parents: " + parents);
+ }
+ parent = parents.getNode(0);
+ parents = parent.getRelatedNodes("learnobjects", "posrel",
"source");
+ }
+ if (parent != null) {
+ NodeList educations = parent.getRelatedNodes("education",
"posrel", "source");
+ if (educations.size() > 0) {
+ return educations.getNode(0);
+ } else {
+ log.warn("No education found for " + node);
+ return null;
+ }
+ } else {
+ log.warn("No parents found for " + node + " don't know the
education");
+ return null;
+ }
+ }
+
+ /**
+ * The sequence number in the tree of learnobjects in the current
education.
+ */
+
+ public int sequence() {
+ Node education = education();
+ if (education != null) {
+ NodeList tree = (NodeList) education.getFunctionValue("tree",
null);
+ int seq = 0;
+ for (Node leaf : tree) {
+ if (leaf.getNumber() == node.getNumber()) {
+ return seq;
+ }
+ seq++;
+ }
+ }
+ return Integer.MAX_VALUE;
+ }
+
/*
public String url() {
List<Integer> result = new ArrayList<Integer>();
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