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Add migration to add user_group.roles column #9030

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Add migration to add user_group.roles column #9030

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31 changes: 31 additions & 0 deletions h/migrations/versions/1975edef158d_add_user_group_roles_column.py
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Original file line number Diff line number Diff line change
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"""Add the user_group.roles column."""

from alembic import op
from sqlalchemy import CheckConstraint, Column, text
from sqlalchemy.dialects.postgresql import JSONB

revision = "1975edef158d"
down_revision = "146179fa8d5e"


def upgrade():
op.add_column(
"user_group",
Column(
"roles",
JSONB,
CheckConstraint(
" OR ".join(
f"""(roles = '["{role}"]'::jsonb)"""
for role in ["member", "moderator", "admin", "owner"]
),
name="validate_role_strings",
),
server_default=text("""'["member"]'::jsonb"""),
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This seems to be fast since PG11

https://www.depesz.com/2018/04/04/waiting-for-postgresql-11-fast-alter-table-add-column-with-a-non-null-default/

nullable=False,
),
)


def downgrade():
op.drop_column("user_group", "roles")
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