old_contents: # =============================================================================
  # Copyright (c) 2016, Cisco Systems, Inc
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  # Redistributions of source code must retain the above copyright notice,
  # this list of conditions and the following disclaimer.
  # Redistributions in binary form must reproduce the above copyright notice,
  # this list of conditions and the following disclaimer in the documentation
  # and/or other materials provided with the distribution.
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  # THE POSSIBILITY OF SUCH DAMAGE.
  # =============================================================================
  from models import SystemVersion
  from database import DBSession
  
  
  class BaseMigrate(object):
      def __init__(self, version):
          self.version = version
  
      def update_schema_version(self):
          db_session = DBSession()
          system_version = SystemVersion.get(db_session)
          system_version.schema_version = self.version
          db_session.commit()
  
      def execute(self):
          self.start()
          self.update_schema_version()
  
      def start(self):       
          raise NotImplementedError("Children must override start")
  
new_contents: # =============================================================================
  # Copyright (c) 2016, Cisco Systems, Inc
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  # Redistributions of source code must retain the above copyright notice,
  # this list of conditions and the following disclaimer.
  # Redistributions in binary form must reproduce the above copyright notice,
  # this list of conditions and the following disclaimer in the documentation
  # and/or other materials provided with the distribution.
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  # THE POSSIBILITY OF SUCH DAMAGE.
  # =============================================================================
  from models import SystemVersion
  from database import DBSession
  
  
  class BaseMigrate(object):
      def __init__(self, version):
          self.version = version
  
      def update_schema_version(self):
          db_session = DBSession()
          system_version = SystemVersion.get(db_session)
          system_version.schema_version = self.version
          # db_session.commit()
  
      def execute(self):
          self.start()
          self.update_schema_version()
  
      def start(self):       
          raise NotImplementedError("Children must override start")
  
subject: Disable schema version update until FCS