Merge "adding the flask-sqlalchemy orm adding flask-migrate for migrating database...

diff --cc trainingmgr/trainingmgr_main.py
index 413de0b,91ddc47..7ed2a85
--- 1/trainingmgr/trainingmgr_main.py
--- 2/trainingmgr/trainingmgr_main.py
+++ b/trainingmgr/trainingmgr_main.py
@@@ -54,11 -55,9 +55,12 @@@ from trainingmgr.db.common_db_fun impor
      update_model_download_url, add_update_trainingjob, add_featuregroup, edit_featuregroup, \
      get_field_of_given_version,get_all_jobs_latest_status_version, get_info_of_latest_version, \
      get_feature_groups_db, get_feature_group_by_name_db, delete_feature_group_by_name, delete_trainingjob_version, change_field_value_by_version
+ from trainingmgr.models import db, TrainingJob, FeatureGroup
  
  APP = Flask(__name__)
 +
 +from middleware.loggingMiddleware import LoggingMiddleware
 +APP.wsgi_app = LoggingMiddleware(APP.wsgi_app)
  TRAININGMGR_CONFIG_OBJ = None
  PS_DB_OBJ = None
  LOGGER = None