text: """empty message
  
  Revision ID: 7692ae5db835
  Revises: c43f833b88d3
  Create Date: 2019-07-17 18:15:22.798037
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = '7692ae5db835'
  down_revision = 'c43f833b88d3'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.create_table('post',
      sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
      sa.Column('title', sa.String(length=200), nullable=False),
      sa.Column('content', sa.Text(), nullable=False),
      sa.Column('create_time', sa.DateTime(), nullable=True),
      sa.Column('board_id', sa.Integer(), nullable=True),
      sa.ForeignKeyConstraint(['board_id'], ['board.id'], ),
      sa.PrimaryKeyConstraint('id')
      )
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_table('post')
      # ### end Alembic commands ###
  