514ca0a3282c_private_messages.py 文件源码

def downgrade():
    ### commands auto generated by Alembic - please adjust! ###
    op.create_table('privatemessages',
    sa.Column('id', sa.INTEGER(), nullable=False),
    sa.Column('user_id', sa.INTEGER(), nullable=False),
    sa.Column('from_user_id', sa.INTEGER(), nullable=True),
    sa.Column('to_user_id', sa.INTEGER(), nullable=True),
    sa.Column('subject', sa.VARCHAR(length=255), nullable=True),
    sa.Column('message', sa.TEXT(), nullable=True),
    sa.Column('date_created', sa.DATETIME(), nullable=True),
    sa.Column('trash', sa.BOOLEAN(), nullable=False),
    sa.Column('draft', sa.BOOLEAN(), nullable=False),
    sa.Column('unread', sa.BOOLEAN(), nullable=False),
    sa.ForeignKeyConstraint(['from_user_id'], [u'users.id'], ),
    sa.ForeignKeyConstraint(['to_user_id'], [u'users.id'], ),
    sa.ForeignKeyConstraint(['user_id'], [u'users.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.drop_table('messages')
    op.drop_table('conversations')
    ### end Alembic commands ###