serialization

问题 I am new to Django Rest Framework. Using serializer and views a simple CRUD is easy. When the logics increase, it is quite confusing where to write logics in serializer or views . Some developers do prefer "Thick serializer and thin views" and some developers "Thick views and thin serializer". Maybe this is not a big issue and I think it is up to the developer whether to write more on views or serializer , but as a newbie what will be your suggestion to follow? Should I write more on views or

问题 I have Product and ProductCategory models. Let's say I have ProductCategory TV , which has Sony , Samsung as its products. I also have MobilePhone category with Apple and Nokia as its products. Using DRF, I would like to get JSON output using serializers, which is similar to the below: { 'TV': [ 'Sony': { 'price': '$100', 'country': 'Japan', }, 'Samsung': { 'price': '$110', 'country': 'Korea', } ] 'mobile_phone': [ 'Apple': { 'price': '$300', 'country': 'USA', }, 'Nokia': { 'price': '$210',

问题 I have Product and ProductCategory models. Let's say I have ProductCategory TV , which has Sony , Samsung as its products. I also have MobilePhone category with Apple and Nokia as its products. Using DRF, I would like to get JSON output using serializers, which is similar to the below: { 'TV': [ 'Sony': { 'price': '$100', 'country': 'Japan', }, 'Samsung': { 'price': '$110', 'country': 'Korea', } ] 'mobile_phone': [ 'Apple': { 'price': '$300', 'country': 'USA', }, 'Nokia': { 'price': '$210',

问题 Background: Noda Time contains many serializable structs. While I dislike binary serialization, we received many requests to support it, back in the 1.x timeline. We support it by implementing the ISerializable interface. We've received a recent issue report of Noda Time 2.x failing within .NET Fiddle. The same code using Noda Time 1.x works fine. The exception thrown is this: Inheritance security rules violated while overriding member: 'NodaTime.Duration.System.Runtime.Serialization

问题 Background: Noda Time contains many serializable structs. While I dislike binary serialization, we received many requests to support it, back in the 1.x timeline. We support it by implementing the ISerializable interface. We've received a recent issue report of Noda Time 2.x failing within .NET Fiddle. The same code using Noda Time 1.x works fine. The exception thrown is this: Inheritance security rules violated while overriding member: 'NodaTime.Duration.System.Runtime.Serialization

问题 I would like to save the data of an injected stateful bean at various intervals: change - save - change- save... I'm using core serialization and the problem is that all the byte arrays are the same. i believe the proxy is serialized because if I deserialize one of the arrays later I get the current state of the bean. Example of serialization not capturing changes in the bean: @Stateful @RequestScoped public class State implements Serializable { private static final long serialVersionUID = 1L

问题 I saved my cart data to the orders table with the serialize method, now in my orders 'view' page, I want to display them to the user to show their order history. How can I revert the previously serialized data to usable objects/arrays within PHP? The code snippet of where I save the data: $order->cart = serialize($cartItems); . The method I try to return my orders index view: /** * Action to receive all orders from the current * logged-in user. This action will return the * 'front.orders'

问题 I saved my cart data to the orders table with the serialize method, now in my orders 'view' page, I want to display them to the user to show their order history. How can I revert the previously serialized data to usable objects/arrays within PHP? The code snippet of where I save the data: $order->cart = serialize($cartItems); . The method I try to return my orders index view: /** * Action to receive all orders from the current * logged-in user. This action will return the * 'front.orders'

问题 I implemented the possibility to add "properties" at runtime to objects with special SystemComponent.PropertyDescriptor-s. Due to the fact that these properties are only accessible with the ComponentModel.TypeDescriptor and not via Reflection, the properties work well in WPF environment but not with Serialization. This is because of all JSON serializers, that I know, use reflection on the type. I analyzed Newtonsoft.Json, System.Json, System.Web.Script.JavaScriptSerializer, System.Runtime

问题 Using the BinaryFormatter class: <Serializable> Class Class1 Public Property List1 as New List(Of Something) <NonSerialized> Public Property List2 as New List(Of Something) End Class when I serialize an object like this one and then deserialize it, List2 will be set to Nothing . What is the correct way to handle this? I don't want List2 to be serialized, but I do want it to be an empty list when I deserialize the class. 回答1: BinaryFormatter doesn't call a class Constuctor, nor it initializes