WIP checkpoint: T1: Moderation data model + Alembic migration
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"""add moderation schema
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Revision ID: 0003_add_moderation_schema
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Revises: 0002_add_date_of_birth_to_users
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Create Date: 2025-01-01 00:00:00.000000
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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# revision identifiers, used by Alembic.
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revision: str = "0003_add_moderation_schema"
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down_revision: Union[str, None] = "0002_add_date_of_birth_to_users"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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"""Create moderation tables and extend users table."""
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# ── ENUM types ──────────────────────────────────────────────
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target_type_enum = postgresql.ENUM(
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"user", "world", "asset", "chat_message",
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name="target_type",
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)
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target_type_enum.create(op.get_bind(), checkfirst=True)
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reason_category_enum = postgresql.ENUM(
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"harassment", "hate_speech", "sexual_content", "violence",
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"spam", "self_harm", "other",
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name="reason_category",
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)
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reason_category_enum.create(op.get_bind(), checkfirst=True)
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report_status_enum = postgresql.ENUM(
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"open", "in_review", "resolved", "dismissed",
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name="report_status",
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)
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report_status_enum.create(op.get_bind(), checkfirst=True)
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resolution_enum = postgresql.ENUM(
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"upheld", "modified", "dismissed",
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name="resolution",
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)
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resolution_enum.create(op.get_bind(), checkfirst=True)
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moderation_action_type_enum = postgresql.ENUM(
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"warn", "suspend", "ban", "restrict", "remove", "restore",
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name="moderation_action_type",
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)
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moderation_action_type_enum.create(op.get_bind(), checkfirst=True)
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appeal_status_enum = postgresql.ENUM(
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"pending", "approved", "rejected",
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name="appeal_status",
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)
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appeal_status_enum.create(op.get_bind(), checkfirst=True)
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user_role_enum = postgresql.ENUM(
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"user", "moderator", "admin",
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name="user_role",
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)
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user_role_enum.create(op.get_bind(), checkfirst=True)
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# ── users table extensions ──────────────────────────────────
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op.add_column(
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"users",
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sa.Column(
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"role",
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postgresql.ENUM(
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"user", "moderator", "admin", name="user_role",
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create_type=False,
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),
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nullable=False,
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server_default="user",
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),
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)
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op.add_column(
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"users",
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sa.Column("banned_until", sa.DateTime(timezone=True), nullable=True),
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)
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op.add_column(
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"users",
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sa.Column("suspended_until", sa.DateTime(timezone=True), nullable=True),
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)
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# ── reports table ───────────────────────────────────────────
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op.create_table(
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"reports",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("reporter_id", sa.Integer(), nullable=False),
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sa.Column(
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"target_type",
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postgresql.ENUM(
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"user", "world", "asset", "chat_message",
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name="target_type", create_type=False,
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),
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nullable=False,
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),
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sa.Column("target_id", sa.String(length=64), nullable=False),
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sa.Column(
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"reason_category",
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postgresql.ENUM(
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"harassment", "hate_speech", "sexual_content", "violence",
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"spam", "self_harm", "other",
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name="reason_category", create_type=False,
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),
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nullable=False,
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),
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sa.Column("details", sa.Text(), nullable=True),
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sa.Column(
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"status",
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postgresql.ENUM(
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"open", "in_review", "resolved", "dismissed",
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name="report_status", create_type=False,
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),
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nullable=False,
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server_default="open",
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),
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sa.Column("resolved_by", sa.Integer(), nullable=True),
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sa.Column(
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"resolution",
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postgresql.ENUM(
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"upheld", "modified", "dismissed",
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name="resolution", create_type=False,
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),
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nullable=True,
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),
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sa.Column(
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"created_at",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.Column(
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"updated_at",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.Column("resolved_at", sa.DateTime(timezone=True), nullable=True),
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sa.ForeignKeyConstraint(
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["reporter_id"], ["users.id"], ondelete="CASCADE",
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),
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sa.ForeignKeyConstraint(
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["resolved_by"], ["users.id"], ondelete="SET NULL",
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),
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)
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op.create_index(op.f("ix_reports_id"), "reports", ["id"], unique=False)
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op.create_index(
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op.f("ix_reports_reporter_id"), "reports", ["reporter_id"], unique=False,
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)
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op.create_index(
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op.f("ix_reports_status"), "reports", ["status"], unique=False,
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)
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op.create_index(
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op.f("ix_reports_target"), "reports", ["target_type", "target_id"], unique=False,
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)
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# ── moderation_actions table ────────────────────────────────
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op.create_table(
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"moderation_actions",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("moderator_id", sa.Integer(), nullable=False),
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sa.Column("target_user_id", sa.Integer(), nullable=False),
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sa.Column(
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"target_type",
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postgresql.ENUM(
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"user", "world", "asset", "chat_message",
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name="target_type", create_type=False,
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),
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nullable=False,
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),
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sa.Column("target_id", sa.String(length=64), nullable=False),
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sa.Column(
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"action",
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postgresql.ENUM(
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"warn", "suspend", "ban", "restrict", "remove", "restore",
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name="moderation_action_type", create_type=False,
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),
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nullable=False,
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),
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sa.Column("reason", sa.Text(), nullable=True),
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sa.Column("report_id", sa.Integer(), nullable=True),
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sa.Column("expires_at", sa.DateTime(timezone=True), nullable=True),
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sa.Column("revoked_at", sa.DateTime(timezone=True), nullable=True),
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sa.Column(
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"created_at",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.ForeignKeyConstraint(
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["moderator_id"], ["users.id"], ondelete="SET NULL",
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),
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sa.ForeignKeyConstraint(
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["target_user_id"], ["users.id"], ondelete="CASCADE",
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),
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sa.ForeignKeyConstraint(
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["report_id"], ["reports.id"], ondelete="SET NULL",
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),
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)
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op.create_index(
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op.f("ix_moderation_actions_id"),
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"moderation_actions", ["id"], unique=False,
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)
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op.create_index(
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op.f("ix_moderation_actions_moderator_id"),
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"moderation_actions", ["moderator_id"], unique=False,
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)
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op.create_index(
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op.f("ix_moderation_actions_target_user_id"),
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"moderation_actions", ["target_user_id"], unique=False,
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)
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op.create_index(
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op.f("ix_moderation_actions_target"),
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"moderation_actions", ["target_type", "target_id"], unique=False,
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)
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# ── appeals table ───────────────────────────────────────────
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op.create_table(
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"appeals",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column(
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"moderation_action_id", sa.Integer(), nullable=False,
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),
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sa.Column("user_id", sa.Integer(), nullable=False),
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sa.Column("reason", sa.Text(), nullable=False),
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sa.Column(
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"status",
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postgresql.ENUM(
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"pending", "approved", "rejected",
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name="appeal_status", create_type=False,
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),
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nullable=False,
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server_default="pending",
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),
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sa.Column("reviewed_by", sa.Integer(), nullable=True),
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sa.Column("reviewed_at", sa.DateTime(timezone=True), nullable=True),
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sa.Column(
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"created_at",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.ForeignKeyConstraint(
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["moderation_action_id"],
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["moderation_actions.id"], ondelete="CASCADE",
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),
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sa.ForeignKeyConstraint(
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["user_id"], ["users.id"], ondelete="CASCADE",
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),
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sa.ForeignKeyConstraint(
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["reviewed_by"], ["users.id"], ondelete="SET NULL",
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),
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)
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op.create_index(op.f("ix_appeals_id"), "appeals", ["id"], unique=False)
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op.create_index(
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op.f("ix_appeals_moderation_action_id"),
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"appeals", ["moderation_action_id"], unique=False,
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)
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op.create_index(
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op.f("ix_appeals_user_id"),
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"appeals", ["user_id"], unique=False,
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)
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op.create_index(
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op.f("ix_appeals_status"),
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"appeals", ["status"], unique=False,
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)
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def downgrade() -> None:
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"""Drop moderation tables and revert users table."""
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op.drop_index(op.f("ix_appeals_status"), table_name="appeals")
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op.drop_index(op.f("ix_appeals_user_id"), table_name="appeals")
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op.drop_index(op.f("ix_appeals_moderation_action_id"), table_name="appeals")
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op.drop_index(op.f("ix_appeals_id"), table_name="appeals")
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op.drop_table("appeals")
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op.drop_index(op.f("ix_moderation_actions_target"), table_name="moderation_actions")
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op.drop_index(op.f("ix_moderation_actions_target_user_id"), table_name="moderation_actions")
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op.drop_index(op.f("ix_moderation_actions_moderator_id"), table_name="moderation_actions")
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op.drop_index(op.f("ix_moderation_actions_id"), table_name="moderation_actions")
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op.drop_table("moderation_actions")
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op.drop_index(op.f("ix_reports_target"), table_name="reports")
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op.drop_index(op.f("ix_reports_status"), table_name="reports")
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op.drop_index(op.f("ix_reports_reporter_id"), table_name="reports")
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op.drop_index(op.f("ix_reports_id"), table_name="reports")
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op.drop_table("reports")
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op.drop_column("users", "suspended_until")
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op.drop_column("users", "banned_until")
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op.drop_column("users", "role")
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# Drop ENUM types
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postgresql.ENUM(name="appeal_status").drop(op.get_bind(), checkfirst=True)
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postgresql.ENUM(name="moderation_action_type").drop(op.get_bind(), checkfirst=True)
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postgresql.ENUM(name="resolution").drop(op.get_bind(), checkfirst=True)
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postgresql.ENUM(name="report_status").drop(op.get_bind(), checkfirst=True)
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postgresql.ENUM(name="reason_category").drop(op.get_bind(), checkfirst=True)
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postgresql.ENUM(name="target_type").drop(op.get_bind(), checkfirst=True)
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postgresql.ENUM(name="user_role").drop(op.get_bind(), checkfirst=True)
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