"""remove timezone info from birthday field Revision ID: d87cea4e995d Revises: d9530a529b3f Create Date: 2016-11-19 09:19:28.000276 """ # revision identifiers, used by Alembic. from alembic import op import sqlalchemy as sa import flaskbb revision = 'd87cea4e995d' down_revision = 'd9530a529b3f' def upgrade(): # user/models.py with op.batch_alter_table('users') as batch_op: batch_op.alter_column('birthday', type_=sa.DateTime(), existing_type=flaskbb.utils.database.UTCDateTime(timezone=True), existing_nullable=True) def downgrade(): # user/models.py with op.batch_alter_table('users') as batch_op: batch_op.alter_column('birthday', existing_type=sa.DateTime(), type_=flaskbb.utils.database.UTCDateTime(timezone=True), existing_nullable=True)