"""

Revision ID: 0286_add_unique_email_name
Revises: 0285_default_org_branding
Create Date: 2019-04-09 13:01:13.892249

"""
import sqlalchemy as sa
from alembic import op

revision = "0286_add_unique_email_name"
down_revision = "0285_default_org_branding"


def upgrade():
    op.alter_column("email_branding", "name", existing_type=sa.VARCHAR(length=255), nullable=False)
    op.create_unique_constraint("uq_email_branding_name", "email_branding", ["name"])


def downgrade():
    op.drop_constraint("uq_email_branding_name", "email_branding", type_="unique")
    op.alter_column("email_branding", "name", existing_type=sa.VARCHAR(length=255), nullable=True)
