old_contents: """Add speaker field to the chat comment database records so that we can display who has said what.
  
  Revision ID: 2dfb5e99f2c
  Revises: 1e63b784275
  Create Date: 2015-06-24 15:45:05.876800
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '2dfb5e99f2c'
  down_revision = '1e63b784275'
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.add_column('game_comment', sa.Column('speaker', sa.String(length=254), nullable=True))
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('game_comment', 'speaker')
      ### end Alembic commands ###
  
new_contents: """Add speaker field to the chat comment database records so that we can display who has said what.
  
  Revision ID: 2dfb5e99f2c
  Revises: 1e63b784275
  Create Date: 2015-06-24 15:45:05.876800
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '2dfb5e99f2c'
  down_revision = '1e63b784275'
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      with op.batch_alter_table('game_comment') as batch_op:
          batch_op.add_column(
              sa.Column('speaker', sa.String(length=254), nullable=True))
  
  
  def downgrade():
      with op.batch_alter_table('game_comment') as batch_op:
          batch_op.drop_column('speaker')
  
subject: fix older alembic migration