diff -r 7256b057c180 -r 881514514df1 web/ldt/ldt_utils/models.py
--- a/web/ldt/ldt_utils/models.py	Tue Jun 08 15:51:07 2010 +0200
+++ b/web/ldt/ldt_utils/models.py	Thu Jun 10 04:14:44 2010 +0200
@@ -2,7 +2,9 @@
 from django.conf import settings
 from ldt.core.models import Document, Owner
 from django.utils.translation import ugettext_lazy as _
-from utils import create_ldt, copy_ldt
+from utils import create_ldt, copy_ldt, create_iri
+import os
+import os.path
 import uuid
 
 class Author(models.Model):
@@ -42,7 +44,19 @@
         super(Content, self).delete()
         writer = lucene.IndexWriter(STORE, ANALYZER, True, lucene.IndexWriter.MaxFieldLength.UNLIMITED)
         writer.deleteDocuments(lucene.Term("iri_id", self.iri_id))
-        writer.commit() 
+        writer.commit()
+        
+    def save(self):
+        # create iri file if needed
+        iri_file_path = self.iri_file_path()
+        if not os.path.exists(iri_file_path):
+            dir = os.path.dirname(iri_file_path)
+            if not os.path.exists(dir):
+                os.makedirs(dir)
+            file = open(iri_file_path,"w")
+            create_iri(file, self, "IRI")
+        # update it 
+        super(Content, self).save()
     
     def __unicode__(self):
         return str(self.id) + ": " + self.iri_id
@@ -52,6 +66,12 @@
             return self.iriurl
         else:
             return unicode(web_url) + unicode(settings.MEDIA_URL)+u"media/ldt/"+unicode(self.iriurl)
+    
+    def iri_file_path(self):
+        return os.path.join(os.path.join(os.path.join(os.path.join(settings.MEDIA_ROOT, "media"), "ldt"), self.iri_id), os.path.basename(self.iri.path))
+
+    def iri_url_template(self):
+        return "${web_url}${media_url}media/ldt/" + unicode(self.iri_id) + "/" + os.path.basename(self.iri.path)
         
         
 class Project(Document):  
@@ -74,6 +94,20 @@
     
     def __unicode__(self):
         return unicode(self.id) + u": " + unicode(self.ldt_id)
+    
+    def get_description(self, doc=None):
+        
+        if doc is None:
+            doc = xml.dom.minidom.parseString(self.ldt)
+            doc = Ft.Xml.Domlette.ConvertDocument(doc)        
+        
+        con = xml.xpath.Context.Context(doc, 1, 1, None)
+        res = xml.xpath.Evaluate("/iri/project", context=con)
+        if len(res) > 0:
+            return res[0].getAttributeNS(None, 'abstract')
+        else:
+            return None
+        
 
     @staticmethod
     def create_project(user, title, contents):