set molecular function description as the default label for object

ippisite/ippidb/models.py

@@ -68,6 +68,9 @@ class MolecularFunction(models.Model):
     go_id = models.CharField('Gene Ontology ID', unique=True, max_length=10) # GO term id format: 'GO:0000000' 
     description = models.CharField('description', max_length=500)
 
+    def __str__(self):
+        return self.description
+
 class Protein(models.Model):
     uniprot_id = models.CharField('Uniprot ID', unique=True, max_length=10)
     recommended_name_long = models.CharField('Uniprot Recommended Name (long)', max_length=75)