CODEWITHSUNDEEP
loopbackjsstrongloop
ibibik
ibibik

Reputation: 33

Createmany in Strongloop Loopback

I have an Order model which hasMany OrderItem models. But once a client wants to create an Order, it has to create an Order object first then for each product he added to his basket, he needs to create responding OrderItems separately. As you may notice it causes many reduntant requests. May be I can make a custom method for OrderItems which consumes a product list. But i was wondering if there is a built in mechanism for this like createMany since it is a very useful operation.

ORDER MODEL

 {
  "name": "Order",
  "plural": "Orders",
  "base": "PersistedModel",
  "idInjection": true,
  "properties": {
    "customerId": {
      "type": "number",
      "required": true
    },
    "branchId": {
      "type": "number",
      "required": true
    }
  },
  "validations": [],
  "relations": {
    "orderItems": {
      "type": "hasMany",
      "model": "OrderItem",
      "foreignKey": "orderId"
    }
  },
  "acls": [],
  "methods": []
}

ORDERITEM MODEL

{
  "name": "OrderItem",
  "plural": "OrderItems",
  "base": "PersistedModel",
  "idInjection": true,
  "properties": {
    "UnitPrice": {
      "type": "number"
    },
    "productId": {
      "type": "number",
      "required": true
    },
    "purchaseOrderId": {
      "type": "number",
      "required": true
    },
    "quantity": {
      "type": "number"
    }
  },
  "validations": [],
  "relations": {
    "product": {
      "type": "belongsTo",
      "model": "Product",
      "foreignKey": "productId"
    },
    "purchaseOrder": {
      "type": "belongsTo",
      "model": "PurchaseOrder",
      "foreignKey": ""
    }

  },
  "acls": [],
  "methods": []
}

Upvotes: 3

Views: 1408

Answers (1)

Alexandru Savin
Alexandru Savin

Reputation: 636

Loopback "create" method accepts also an array of objects (see PersistedModel.create docs) so you should try creating one "create" call and send an array of OrderItems.

Upvotes: 4

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