first commit

backend/alembic/versions/20260404_0003_phase4_roles_subscribers.py

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+"""admin roles, subscribers, alert log
+
+Revision ID: 20260404_0003
+Revises: 20260404_0002
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "20260404_0003"
+down_revision: Union[str, None] = "20260404_0002"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute(
+        """
+        DO $$ BEGIN
+            CREATE TYPE adminrole AS ENUM ('super_admin', 'editor');
+        EXCEPTION
+            WHEN duplicate_object THEN null;
+        END $$;
+        """
+    )
+    op.execute(
+        "ALTER TABLE admin_users ADD COLUMN IF NOT EXISTS role adminrole NOT NULL DEFAULT 'super_admin'"
+    )
+
+    op.execute(
+        """
+        CREATE TABLE IF NOT EXISTS newsletter_subscribers (
+            id SERIAL PRIMARY KEY,
+            email VARCHAR(255) NOT NULL UNIQUE,
+            neighborhood VARCHAR(120),
+            created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+        )
+        """
+    )
+    op.execute(
+        """
+        CREATE TABLE IF NOT EXISTS alert_dispatches (
+            id SERIAL PRIMARY KEY,
+            alert_key VARCHAR(120) NOT NULL UNIQUE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+        )
+        """
+    )
+
+
+def downgrade() -> None:
+    op.execute("DROP TABLE IF EXISTS alert_dispatches")
+    op.execute("DROP TABLE IF EXISTS newsletter_subscribers")
+    op.execute("ALTER TABLE admin_users DROP COLUMN IF EXISTS role")