150b205df625_.py 文件源码

def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('User', sa.Column('username', sa.Unicode(), nullable=False))
    op.alter_column('User', 'email',
               existing_type=sa.VARCHAR(),
               nullable=False)
    op.create_index(op.f('ix_User_username'), 'User', ['username'], unique=True)
    op.drop_constraint('User_email_key', 'User', type_='unique')
    # ### end Alembic commands ###