From 0f7948f18ad5e8c3f833dae9294e1d2312aaf3e2 Mon Sep 17 00:00:00 2001
From: quasi <quasi@8810af33-2d31-482b-a856-94f89814c4df>
Date: Wed, 26 Jan 2011 15:21:22 +0000
Subject: [PATCH] =?UTF-8?q?Erzeuge=20die=20Vererbungen=20f=C3=BCr=20alle?=
 =?UTF-8?q?=20Contenttypen=20beim=20Upgrade.?=
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git-svn-id: https://svn.libreccm.org/ccm/trunk@714 8810af33-2d31-482b-a856-94f89814c4df
---
 .../upgrade/CreateGenericContentTypes.java    | 85 +++++++++++++++++++
 1 file changed, 85 insertions(+)

diff --git a/ccm-cms/src/com/arsdigita/cms/upgrade/CreateGenericContentTypes.java b/ccm-cms/src/com/arsdigita/cms/upgrade/CreateGenericContentTypes.java
index 92e16802e..187216f97 100644
--- a/ccm-cms/src/com/arsdigita/cms/upgrade/CreateGenericContentTypes.java
+++ b/ccm-cms/src/com/arsdigita/cms/upgrade/CreateGenericContentTypes.java
@@ -98,10 +98,95 @@ public class CreateGenericContentTypes extends Program {
 
                 tc.commitTxn();  // save database additions for re-reading
 
+                tc.beginTxn();
+
+                ContentTypeCollection ctc = ContentType.getAllContentTypes();
+
+                s_log.debug("Starte content types update");
+
+                while (ctc.next()) {
+
+                    ContentType ct = ctc.getContentType();
+
+                    s_log.debug("Verarbeite " + ct.getClassName());
+
+                    createPedigree(ct);
+
+                }
+                tc.commitTxn();
             }
         }.run();
 
 
     }
 
+    /**
+     * Generates the pedigree for this content type
+     * @param type The new content type
+     */
+    private void createPedigree(ContentType type) {
+
+        // The parent content type
+        ContentType parent = null;
+
+        // Get all content types
+        ContentTypeCollection cts = ContentType.getAllContentTypes();
+
+        // This is a brute force method, but I can't come up with something
+        // better atm without changing either all Loader or the xml-files.
+        while (cts.next()) {
+            ContentType ct = cts.getContentType();
+
+            try {
+                Class.forName(type.getClassName()).asSubclass(Class.forName(ct.getClassName()));
+            } catch (Exception ex) {
+                // This cast is not valid so type is not a sublacss of ct
+                continue;
+            }
+
+            // Save the current ct as possible parent if we haven't found any parent yet
+            // or if the current ancestor list is longer than that one from the possible
+            // parent earlier found
+            if (!type.getClassName().equals(ct.getClassName())
+                    && (parent == null
+                    || (parent.getAncestors() != null
+                    && ct.getAncestors() != null
+                    && parent.getAncestors().length() < ct.getAncestors().length()))) {
+                parent = ct;
+            }
+        }
+
+        // If there is a valid parent content type create the pedigree
+        if (parent != null && !parent.getClassName().equals(type.getClassName())) {
+            if (parent.getAncestors() != null) {
+                String parentAncestors = parent.getAncestors();
+
+                StringTokenizer strTok = new StringTokenizer(parentAncestors, "/");
+
+                // Add parent ancestors to this content types ancestor list
+                // Also while we iterate through the list, we also need to add
+                // this content type as descendant to all entries in the ancestor list
+                while (strTok.hasMoreElements()) {
+                    BigDecimal ctID = new BigDecimal(strTok.nextToken());
+
+                    // Get the current content type
+                    try {
+                        ContentType ct = new ContentType(ctID);
+                        ct.addDescendants(ctID);
+                    } catch (Exception ex) {
+                        // The db is broken. There is no content type for this ID
+                    }
+
+                    // Add parent ancestor
+                    type.addAncestor(ctID);
+                }
+            }
+
+            // Add parent to ancestor list
+            type.addAncestor(parent.getID());
+
+            // Add this to parent descendants
+            parent.addDescendants(type.getID());
+        }
+    }
 }