TVB-2132 Add new column on Sim_State DT (from commit #7913)

git-svn-id: https://repo.thevirtualbrain.org/svn/tvb/trunk/framework_tvb@8001 1c0e02f0-7929-43c0-8fb3-3293bf43b0d1

tvb/core/entities/model/db_update_scripts/017_update_db.py

@@ -72,6 +72,20 @@ def upgrade(migrate_engine):
     for col in ADD_COLUMNS:
         create_column(col, table_algo)
 
+    session = SA_SESSIONMAKER()
+    try:
+        session.execute(text("ALTER TABLE \"MAPPED_SIMULATION_STATE\" "
+                             "ADD COLUMN _current_state VARYING CHARACTER(255)"))
+        session.commit()
+    except Exception, _:
+        session.close()
+        session = SA_SESSIONMAKER()
+        session.execute(text("ALTER TABLE \"MAPPED_SIMULATION_STATE\" "
+                             "ADD COLUMN _current_state character varying;"))
+        session.commit()
+    finally:
+        session.close()
+
     session = SA_SESSIONMAKER()
     try:
         session.execute(text(