old_contents: import os
  import logbook
  
  from .base import SubsystemBase
  from ..ctx import context
  
  from flask_migrate import Migrate
  from flask_sqlalchemy import SQLAlchemy
  
  
  _logger = logbook.Logger(__name__)
  
  
  class ModelsSubsystem(SubsystemBase):
  
      NAME = 'models'
  
      def activate(self, flask_app):
  
          env_override = os.environ.get('COB_DATABASE_URI')
          if env_override:
              flask_app.config['SQLALCHEMY_DATABASE_URI'] = env_override
          else:
              flask_app.config.setdefault('SQLALCHEMY_DATABASE_URI', 'sqlite:///{}'.format(os.path.join(self.project.root, '.cob', 'db.sqlite')))
  
          context.db = SQLAlchemy(flask_app)
          Migrate(flask_app, context.db).init_app(flask_app)
          super(ModelsSubsystem, self).activate(flask_app)
  
      def has_migrations(self):
          return os.path.isdir(os.path.join(self.project.root, 'migrations'))
  
  
      def configure_grain(self, grain, flask_app): # pylint: disable=unused-argument
          _logger.trace('Found models: {m.path}', grain)
          grain.load()
  
      def iter_locations(self):
          return None
  
new_contents: import os
  import logbook
  
  from .base import SubsystemBase
  from ..ctx import context
  
  from flask_migrate import Migrate
  from flask_sqlalchemy import SQLAlchemy
  
  
  _logger = logbook.Logger(__name__)
  
  
  class ModelsSubsystem(SubsystemBase):
  
      NAME = 'models'
  
      def activate(self, flask_app):
  
          env_override = os.environ.get('COB_DATABASE_URI')
          if env_override:
              flask_app.config['SQLALCHEMY_DATABASE_URI'] = env_override
          else:
              flask_app.config.setdefault('SQLALCHEMY_DATABASE_URI', 'sqlite:///{}'.format(os.path.join(self.project.root, '.cob', 'db.sqlite')))
  
          context.db = SQLAlchemy(flask_app)
          Migrate(flask_app, context.db).init_app(flask_app)
          super(ModelsSubsystem, self).activate(flask_app)
  
      def has_migrations(self):
          return os.path.isdir(os.path.join(self.project.root, 'migrations'))
  
  
      def configure_grain(self, grain, flask_app): # pylint: disable=unused-argument
          _logger.trace('Found models: {.path}', grain)
          grain.load()
  
      def iter_locations(self):
          return None
  
subject: Fix wrong log message