Phase 1: Migrationsaudit + Forward-Migrationen 0093-0096

Audit (docs/migration_history_audit.md): - files.size_bytes: INTEGER (Alembic) vs BIGINT (Produktion/Plugin) - GIN-Indizes: Fehlendes USING GIN in Alembic 0002 - guest_users: ix_guest_users_email_tenant fehlt UNIQUE in Alembic 0059 - plugins.name: Doppelter Unique-Index in Produktion Forward-Migrationen: - 0093: files.size_bytes INTEGER → BIGINT - 0094: GIN-Indizes reparieren + plugins.name doppelten Index entfernen - 0095: guest_users email+tenant_id UNIQUE INDEX (mit Dubletten-Check) - 0096: Workspace tenant_integrity (tenant-bound FKs) Tests: 41/41 bestanden (17 Workspace + 24 Command) Alembic Head: 0096
2026-08-03 13:29:16 +02:00
parent a760a759eb
commit 3eb11b1745
5 changed files with 325 additions and 0 deletions
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+"""Workspace tenant integrity constraints.
+
+Plan 4.3: Add tenant-bound foreign keys to workspace child tables.
+
+- workspaces: UNIQUE (tenant_id, id)
+- workspace_modules: FK (tenant_id, workspace_id) → workspaces (tenant_id, id)
+- workspace_widgets: FK (tenant_id, workspace_id) → workspaces (tenant_id, id)
+- workspace_users: FK (tenant_id, workspace_id) → workspaces (tenant_id, id)
+- workspace_users: FK (tenant_id, user_id) → user_tenants (tenant_id, user_id)
+
+Revision ID: 0096
+Revises: 0095
+"""
+
+from __future__ import annotations
+
+from alembic import op
+
+revision = "0096"
+down_revision = "0095"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # 1. Add UNIQUE (tenant_id, id) on workspaces
+    op.execute(
+        "CREATE UNIQUE INDEX IF NOT EXISTS uq_workspaces_tenant_id "
+        "ON workspaces (tenant_id, id)"
+    )
+
+    # 2. Drop existing FKs on workspace_modules (workspace_id → workspaces.id)
+    #    and replace with tenant-bound FK
+    op.execute("ALTER TABLE workspace_modules DROP CONSTRAINT IF EXISTS workspace_modules_workspace_id_fkey")
+    op.execute(
+        "ALTER TABLE workspace_modules "
+        "ADD CONSTRAINT fk_wm_tenant_workspace "
+        "FOREIGN KEY (tenant_id, workspace_id) "
+        "REFERENCES workspaces (tenant_id, id) ON DELETE CASCADE"
+    )
+
+    # 3. Drop existing FK on workspace_widgets and replace with tenant-bound FK
+    op.execute("ALTER TABLE workspace_widgets DROP CONSTRAINT IF EXISTS workspace_widgets_workspace_id_fkey")
+    op.execute(
+        "ALTER TABLE workspace_widgets "
+        "ADD CONSTRAINT fk_ww_tenant_workspace "
+        "FOREIGN KEY (tenant_id, workspace_id) "
+        "REFERENCES workspaces (tenant_id, id) ON DELETE CASCADE"
+    )
+
+    # 4. Drop existing FK on workspace_users and replace with tenant-bound FK
+    op.execute("ALTER TABLE workspace_users DROP CONSTRAINT IF EXISTS workspace_users_workspace_id_fkey")
+    op.execute(
+        "ALTER TABLE workspace_users "
+        "ADD CONSTRAINT fk_wu_tenant_workspace "
+        "FOREIGN KEY (tenant_id, workspace_id) "
+        "REFERENCES workspaces (tenant_id, id) ON DELETE CASCADE"
+    )
+
+    # 5. Add FK on workspace_users (tenant_id, user_id) → user_tenants (tenant_id, user_id)
+    op.execute(
+        "ALTER TABLE workspace_users "
+        "ADD CONSTRAINT fk_wu_tenant_user "
+        "FOREIGN KEY (tenant_id, user_id) "
+        "REFERENCES user_tenants (tenant_id, user_id) ON DELETE CASCADE"
+    )
+
+
+def downgrade() -> None:
+    # Remove tenant-bound FKs, restore simple FKs
+    op.execute("ALTER TABLE workspace_users DROP CONSTRAINT IF EXISTS fk_wu_tenant_user")
+    op.execute("ALTER TABLE workspace_users DROP CONSTRAINT IF EXISTS fk_wu_tenant_workspace")
+    op.execute(
+        "ALTER TABLE workspace_users "
+        "ADD CONSTRAINT workspace_users_workspace_id_fkey "
+        "FOREIGN KEY (workspace_id) REFERENCES workspaces (id) ON DELETE CASCADE"
+    )
+
+    op.execute("ALTER TABLE workspace_widgets DROP CONSTRAINT IF EXISTS fk_ww_tenant_workspace")
+    op.execute(
+        "ALTER TABLE workspace_widgets "
+        "ADD CONSTRAINT workspace_widgets_workspace_id_fkey "
+        "FOREIGN KEY (workspace_id) REFERENCES workspaces (id) ON DELETE CASCADE"
+    )
+
+    op.execute("ALTER TABLE workspace_modules DROP CONSTRAINT IF EXISTS fk_wm_tenant_workspace")
+    op.execute(
+        "ALTER TABLE workspace_modules "
+        "ADD CONSTRAINT workspace_modules_workspace_id_fkey "
+        "FOREIGN KEY (workspace_id) REFERENCES workspaces (id) ON DELETE CASCADE"
+    )
+
+    op.execute("DROP INDEX IF EXISTS uq_workspaces_tenant_id")