diff -r fdf808d7d374 -r e3ebe3545f72 web/hdalab/models/dataviz.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/hdalab/models/dataviz.py	Thu Feb 16 21:48:40 2012 +0100
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+'''
+Created on Jan 27, 2012
+
+@author: ymh
+'''
+from django.db import models
+from hdabo.models import Tag
+
+
+class TagYears(models.Model):
+    
+    tag = models.ForeignKey(Tag, related_name="years", blank=False, null=False, db_index=True)
+    start_year = models.IntegerField(blank=False, null=False, db_index=True)
+    end_year = models.IntegerField(blank=False, null=False, db_index=True)
+    
+    class Meta:
+        app_label = 'hdalab'
+        
+
+class TagLinks(models.Model):
+    
+    subject = models.ForeignKey(Tag, blank=False, null=False, db_index=True, related_name="taglinks_subjects")
+    object = models.ForeignKey(Tag, blank=False, null=False, db_index=True, related_name="taglinks_objects")
+    
+    class Meta:
+        app_label = 'hdalab'
+
+class CountryCode(models.Model):
+
+    label = models.CharField(max_length=1024, unique=True, blank=False, null=False, db_index=True)
+    isocode = models.CharField(max_length=3, unique=True, blank=False, null=False, db_index=True)
+    
+    class Meta:
+        app_label = 'hdalab'
+
+class DbpediaFields(models.Model):
+
+    dbpedia_uri = models.URLField(verify_exists=False, max_length=2048, blank=False, null=False, db_index=True, unique=False)
+    tag = models.OneToOneField(Tag, blank=True, null=True, db_index=True, related_name="dbpedia_fields")
+    abstract = models.TextField(blank=True, null=True)
+    label = models.CharField(max_length=2048, unique=False, blank=True, null=True)
+    thumbnail = models.URLField(verify_exists=False, max_length=2048, blank=True, null=True, db_index=False)
+
+    class Meta:
+        app_label = 'hdalab'
+
+class HdaSession(models.Model):
+    
+    sessionid = models.CharField(max_length=36, unique=True, blank=False, null=False, db_index=True)
+    data = models.TextField(blank=True, null=True)
+    
+    class Meta:
+        app_label = 'hdalab'
+