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"""empty message
Revision ID: 838081950f27
Revises: 86512692b770
Create Date: 2020-07-12 01:33:19.499459
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '838081950f27'
down_revision = '86512692b770'
branch_labels = None
depends_on = None
def upgrade():
op.execute("""
DELETE FROM provides AS t USING meta_package AS m WHERE t.metapackage_id = m.id AND NOT (m.name ~* '^[a-z0-9_]+$');
DELETE FROM dependency AS t USING meta_package AS m WHERE t.meta_package_id = m.id AND NOT (m.name ~* '^[a-z0-9_]+$');
DELETE FROM meta_package WHERE NOT (name ~* '^[a-z0-9_]+$');
""")
op.create_check_constraint("mp_name_valid", "meta_package", "name ~* '^[a-z0-9_]+$'")
def downgrade():
op.drop_constraint("mp_name_valid", "meta_package", type_="check")
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