fix(schema): enforce cross-space FK on tasks.project_id via composite key

Security review flagged that tasks.project_id could reference a project in
a different space. Added composite FK (project_id, space_id) -> projects(id, space_id)
with ON DELETE SET NULL (project_id) so a deleted project leaves the task in
its space with project_id NULL rather than orphaning into a NULL space.

Added two regression tests: cross-space FK rejection + cascade behavior.
This commit is contained in:
root
2026-05-31 02:14:20 +10:00
parent 951016385a
commit 3ca1509935
2 changed files with 52 additions and 4 deletions

View File

@@ -20,13 +20,18 @@ CREATE TABLE projects (
completed_at timestamptz,
created_at timestamptz NOT NULL DEFAULT now(),
updated_at timestamptz NOT NULL DEFAULT now(),
UNIQUE (space_id, slug)
UNIQUE (space_id, slug),
-- Composite key target for tasks.(project_id, space_id) FK below
UNIQUE (id, space_id)
);
CREATE TABLE tasks (
id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
space_id uuid NOT NULL REFERENCES spaces(id) ON DELETE CASCADE,
project_id uuid REFERENCES projects(id) ON DELETE SET NULL,
project_id uuid,
-- Cross-space FK enforcement: a task's project (if set) must live in the same space.
FOREIGN KEY (project_id, space_id) REFERENCES projects(id, space_id)
ON DELETE SET NULL (project_id),
title text NOT NULL,
body text,
status text NOT NULL DEFAULT 'todo'