"""empty message Revision ID: 0034_pwd_changed_at_not_null Revises: 0033_api_key_type Create Date: 2016-06-28 10:37:25.389020 """ # revision identifiers, used by Alembic. revision = "0034_pwd_changed_at_not_null" down_revision = "0033_api_key_type" import sqlalchemy as sa from alembic import op def upgrade(): ### commands auto generated by Alembic - please adjust! ### op.get_bind() op.execute( "update users set password_changed_at = created_at where password_changed_at is null" ) op.alter_column("users", "password_changed_at", nullable=False) ### end Alembic commands ### def downgrade(): ### commands auto generated by Alembic - please adjust! ### op.alter_column("users", "password_changed_at", nullable=True) ### end Alembic commands ###