POs

server/prisma/schema.prisma

@@ -122,6 +122,7 @@ model InventoryItem {
   inventoryTransactions InventoryTransaction[]
   salesQuoteLines SalesQuoteLine[]
   salesOrderLines SalesOrderLine[]
+  purchaseOrderLines PurchaseOrderLine[]
 }
 
 model Warehouse {
@@ -250,6 +251,7 @@ model Vendor {
   updatedAt    DateTime @updatedAt
   contactEntries CrmContactEntry[]
   contacts     CrmContact[]
+  purchaseOrders PurchaseOrder[]
 }
 
 model CrmContactEntry {
@@ -368,3 +370,35 @@ model Shipment {
 
   @@index([salesOrderId, createdAt])
 }
+
+model PurchaseOrder {
+  id             String   @id @default(cuid())
+  documentNumber String   @unique
+  vendorId       String
+  status         String
+  issueDate      DateTime
+  taxPercent     Float    @default(0)
+  freightAmount  Float    @default(0)
+  notes          String
+  createdAt      DateTime @default(now())
+  updatedAt      DateTime @updatedAt
+  vendor         Vendor   @relation(fields: [vendorId], references: [id], onDelete: Restrict)
+  lines          PurchaseOrderLine[]
+}
+
+model PurchaseOrderLine {
+  id            String   @id @default(cuid())
+  purchaseOrderId String
+  itemId        String
+  description   String
+  quantity      Int
+  unitOfMeasure String
+  unitCost      Float
+  position      Int      @default(0)
+  createdAt     DateTime @default(now())
+  updatedAt     DateTime @updatedAt
+  purchaseOrder PurchaseOrder @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
+  item          InventoryItem @relation(fields: [itemId], references: [id], onDelete: Restrict)
+
+  @@index([purchaseOrderId, position])
+}