old_contents: from __future__ import with_statement
  from alembic import context
  from sqlalchemy import engine_from_config, pool
  from logging.config import fileConfig
  
  from flask import current_app
  
  #app = create_app()
  # this is the Alembic Config object, which provides
  # access to the values within the .ini file in use.
  config = context.config
  
  # Interpret the config file for Python logging.
  # This line sets up loggers basically.
  fileConfig(config.config_file_name)
  
  print current_app.config['SQLALCHEMY_DATABASE_URI']
  
  config.set_main_option('sqlalchemy.url', current_app.config['SQLALCHEMY_DATABASE_URI'])
  target_metadata = current_app.extensions['migrate'].metadata
  
  # other values from the config, defined by the needs of env.py,
  # can be acquired:
  # my_important_option = config.get_main_option("my_important_option")
  # ... etc.
  
  def run_migrations_offline():
      """Run migrations in 'offline' mode.
  
      This configures the context with just a URL
      and not an Engine, though an Engine is acceptable
      here as well.  By skipping the Engine creation
      we don't even need a DBAPI to be available.
  
      Calls to context.execute() here emit the given string to the
      script output.
  
      """
      url = config.get_main_option("sqlalchemy.url")
      context.configure(url=url)
  
      with context.begin_transaction():
          context.run_migrations()
  
  
  def run_migrations_online():
      """Run migrations in 'online' mode.
  
      In this scenario we need to create an Engine
      and associate a connection with the context.
  
      """
      engine = engine_from_config(
          config.get_section(config.config_ini_section),
          prefix='sqlalchemy.',
          poolclass=pool.NullPool)
  
      connection = engine.connect()
      context.configure(
          connection=connection,
          target_metadata=target_metadata
      )
  
      try:
          with context.begin_transaction():
              context.run_migrations()
      finally:
          connection.close()
  
  
  if context.is_offline_mode():
      run_migrations_offline()
  else:
      run_migrations_online()
  
  
new_contents: from __future__ import with_statement
  from alembic import context
  from sqlalchemy import engine_from_config, pool
  from logging.config import fileConfig
  
  from flask import current_app
  
  # this is the Alembic Config object, which provides
  # access to the values within the .ini file in use.
  config = context.config
  
  # Interpret the config file for Python logging.
  # This line sets up loggers basically.
  fileConfig(config.config_file_name)
  
  print current_app.config['SQLALCHEMY_DATABASE_URI']
  
  config.set_main_option('sqlalchemy.url', current_app.config['SQLALCHEMY_DATABASE_URI'])
  target_metadata = current_app.extensions['migrate'].metadata
  
  # other values from the config, defined by the needs of env.py,
  # can be acquired:
  # my_important_option = config.get_main_option("my_important_option")
  # ... etc.
  
  def run_migrations_offline():
      """Run migrations in 'offline' mode.
  
      This configures the context with just a URL
      and not an Engine, though an Engine is acceptable
      here as well.  By skipping the Engine creation
      we don't even need a DBAPI to be available.
  
      Calls to context.execute() here emit the given string to the
      script output.
  
      """
      url = config.get_main_option("sqlalchemy.url")
      context.configure(url=url)
  
      with context.begin_transaction():
          context.run_migrations()
  
  
  def run_migrations_online():
      """Run migrations in 'online' mode.
  
      In this scenario we need to create an Engine
      and associate a connection with the context.
  
      """
      engine = engine_from_config(
          config.get_section(config.config_ini_section),
          prefix='sqlalchemy.',
          poolclass=pool.NullPool)
  
      connection = engine.connect()
      context.configure(
          connection=connection,
          target_metadata=target_metadata
      )
  
      try:
          with context.begin_transaction():
              context.run_migrations()
      finally:
          connection.close()
  
  
  if context.is_offline_mode():
      run_migrations_offline()
  else:
      run_migrations_online()
  
  
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