backfill from projects

server/prisma/migrations/20260318014000_project_linkage_backfill/migration.sql

@@ -0,0 +1,38 @@
+ALTER TABLE "PurchaseOrder" ADD COLUMN "projectId" TEXT REFERENCES "Project"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+CREATE INDEX "PurchaseOrder_projectId_issueDate_idx" ON "PurchaseOrder"("projectId", "issueDate");
+
+UPDATE "WorkOrder"
+SET "projectId" = (
+  SELECT "Project"."id"
+  FROM "Project"
+  WHERE "Project"."salesOrderId" = "WorkOrder"."salesOrderId"
+  ORDER BY "Project"."createdAt" ASC
+  LIMIT 1
+)
+WHERE "projectId" IS NULL
+  AND "salesOrderId" IS NOT NULL
+  AND EXISTS (
+    SELECT 1
+    FROM "Project"
+    WHERE "Project"."salesOrderId" = "WorkOrder"."salesOrderId"
+  );
+
+UPDATE "PurchaseOrder"
+SET "projectId" = (
+  SELECT "Project"."id"
+  FROM "PurchaseOrderLine"
+  INNER JOIN "Project" ON "Project"."salesOrderId" = "PurchaseOrderLine"."salesOrderId"
+  WHERE "PurchaseOrderLine"."purchaseOrderId" = "PurchaseOrder"."id"
+    AND "PurchaseOrderLine"."salesOrderId" IS NOT NULL
+  ORDER BY "Project"."createdAt" ASC
+  LIMIT 1
+)
+WHERE "projectId" IS NULL
+  AND EXISTS (
+    SELECT 1
+    FROM "PurchaseOrderLine"
+    INNER JOIN "Project" ON "Project"."salesOrderId" = "PurchaseOrderLine"."salesOrderId"
+    WHERE "PurchaseOrderLine"."purchaseOrderId" = "PurchaseOrder"."id"
+      AND "PurchaseOrderLine"."salesOrderId" IS NOT NULL
+  );

server/prisma/schema.prisma

@@ -618,6 +618,7 @@ model Project {
   shipment      Shipment? @relation(fields: [shipmentId], references: [id], onDelete: SetNull)
   owner         User? @relation("ProjectOwner", fields: [ownerId], references: [id], onDelete: SetNull)
   workOrders    WorkOrder[]
+  purchaseOrders PurchaseOrder[]
   milestones    ProjectMilestone[]
 
   @@index([customerId, createdAt])
@@ -864,6 +865,7 @@ model PurchaseOrder {
   id             String   @id @default(cuid())
   documentNumber String   @unique
   vendorId       String
+  projectId      String?
   status         String
   issueDate      DateTime
   taxPercent     Float    @default(0)
@@ -872,10 +874,13 @@ model PurchaseOrder {
   createdAt      DateTime @default(now())
   updatedAt      DateTime @updatedAt
   vendor         Vendor   @relation(fields: [vendorId], references: [id], onDelete: Restrict)
+  project        Project? @relation(fields: [projectId], references: [id], onDelete: SetNull)
   lines          PurchaseOrderLine[]
   receipts       PurchaseReceipt[]
   revisions      PurchaseOrderRevision[]
   capexEntries   CapexEntry[]
+
+  @@index([projectId, issueDate])
 }
 
 model PurchaseOrderLine {