Erste Produktivversion

backend/alembic/versions/0005_public_links.py

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+"""Phase 5b: Öffentliche Ansichtslinks und Zusatzrecht zum Teilen
+
+Revision ID: 0005
+Revises: 0004
+Create Date: 2026-08-08
+"""
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0005"
+down_revision: str | None = "0004"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "list_member",
+        sa.Column(
+            "may_share_public", sa.Boolean(), nullable=False,
+            server_default=sa.text("0"),
+        ),
+    )
+    # Eigentuemer haben das Recht immer - der Vollstaendigkeit halber
+    # auch in der Spalte, damit Abfragen einheitlich bleiben.
+    op.execute("UPDATE list_member SET may_share_public = 1 WHERE role = 'owner'")
+
+    op.create_table(
+        "public_share",
+        sa.Column("id", sa.String(36), primary_key=True),
+        sa.Column("list_id", sa.String(36), nullable=False),
+        sa.Column("token_hash", sa.String(64), nullable=False),
+        sa.Column("label", sa.String(120), nullable=True),
+        sa.Column("allow_check", sa.Boolean(), nullable=False, server_default=sa.text("1")),
+        sa.Column("created_by", sa.String(36), nullable=True),
+        sa.Column("created_at", sa.DateTime(), nullable=False, server_default=sa.func.now()),
+        sa.Column("expires_at", sa.DateTime(), nullable=False),
+        sa.Column("revoked_at", sa.DateTime(), nullable=True),
+        sa.Column("last_access_at", sa.DateTime(), nullable=True),
+        sa.Column("access_count", sa.Integer(), nullable=False, server_default=sa.text("0")),
+        sa.ForeignKeyConstraint(["list_id"], ["shopping_list.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["created_by"], ["user.id"], ondelete="SET NULL"),
+        sa.UniqueConstraint("token_hash", name="uq_public_share_token"),
+        mysql_engine="InnoDB",
+        mysql_charset="utf8mb4",
+        mysql_collate="utf8mb4_unicode_ci",
+    )
+    op.create_index("ix_public_share_list", "public_share", ["list_id"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_public_share_list", table_name="public_share")
+    op.drop_table("public_share")
+    op.drop_column("list_member", "may_share_public")