correct ppi assignation in TestActivityDescription migration

Former-commit-id: cb442a29723ac867a35a428583bca84c33f81d99

ippisite/ippidb/management/commands/import_v1_data.py

@@ -253,7 +253,7 @@ select distinct protein.NumUniprot, domain.PfamNumAccession  , complexe.NbCopy,
                     biblio_row = cursor.fetchone()
                     biblio = Bibliography.objects.get(id_source=biblio_row[0])
                     tad.biblio = biblio
-                    Ppi.objects.get(id=ppi_ids_mapping[row[3]])
+                    tad.ppi = Ppi.objects.get(id=ppi_ids_mapping[row[3]])
                     tad.test_name = row[4]
                     tad.test_type = row[7].upper()
                     tad.test_modulation_type = row[8][0]