Adds klarna payment provider (#79)

packages/medusa/src/models/order.js

@@ -18,6 +18,7 @@ class OrderModel extends BaseModel {
     // awaiting, captured, refunded
     payment_status: { type: String, default: "awaiting" },
     email: { type: String, required: true },
+    cart_id: { type: String },
     billing_address: { type: AddressSchema, required: true },
     shipping_address: { type: AddressSchema, required: true },
     items: { type: [LineItemSchema], required: true },

packages/medusa/src/services/order.js

@@ -123,6 +123,14 @@ class OrderService extends BaseService {
     return updatedMethods
   }
 
+  /**
+   * @param {Object} selector - the query object for find
+   * @return {Promise} the result of the find operation
+   */
+  list(selector) {
+    return this.orderModel_.find(selector)
+  }
+
   /**
    * Gets an order by id.
    * @param {string} orderId - id of order to retrieve