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Implement soft-delete for clients, projects, and time entries

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Replace hard deletes with deletedAt timestamp flags on all three entities.
Deleting a client or project only sets its own deletedAt; child records are
excluded implicitly by filtering on parent deletedAt in every read query.
Raw SQL statistics queries also filter out soft-deleted parents.
FK ON DELETE CASCADE removed from Project→Client and TimeEntry→Project.
This commit is contained in:
simon.franken
2026-02-23 15:21:13 +01:00
parent 685a311001
commit 1a7d13d5b9
6 changed files with 97 additions and 40 deletions
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20
backend/prisma/migrations/20260223200000_add_soft_delete/migration.sql Normal file
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-- AlterTable: add deleted_at column to clients
ALTER TABLE "clients" ADD COLUMN "deleted_at" TIMESTAMP(3);
-- AlterTable: add deleted_at column to projects
ALTER TABLE "projects" ADD COLUMN "deleted_at" TIMESTAMP(3);
-- AlterTable: add deleted_at column to time_entries
ALTER TABLE "time_entries" ADD COLUMN "deleted_at" TIMESTAMP(3);
-- DropForeignKey: remove cascade from projects -> clients
ALTER TABLE "projects" DROP CONSTRAINT "projects_client_id_fkey";
-- DropForeignKey: remove cascade from time_entries -> projects
ALTER TABLE "time_entries" DROP CONSTRAINT "time_entries_project_id_fkey";
-- AddForeignKey: re-add without onDelete cascade
ALTER TABLE "projects" ADD CONSTRAINT "projects_client_id_fkey" FOREIGN KEY ("client_id") REFERENCES "clients"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
-- AddForeignKey: re-add without onDelete cascade
ALTER TABLE "time_entries" ADD CONSTRAINT "time_entries_project_id_fkey" FOREIGN KEY ("project_id") REFERENCES "projects"("id") ON DELETE RESTRICT ON UPDATE CASCADE;