serializer | A single header standard C serialization framework | Serialization library
kandi X-RAY | serializer Summary
kandi X-RAY | serializer Summary
A single header standard C++ serialization framework.
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QUESTION
I am trying to figure out how to serialize to a json object and skip serializing properties whose values are empty lists. I am not using Newtonsoft json
...ANSWER
Answered 2022-Mar-09 at 13:53You can add a dummy property that is used during serialization that handles this.
- Add a new property with the same signature, but flag it with
JsonPropertyNameAttribute
to ensure it is being serialized with the correct name, and also with theJsonIgnoreAttribute
so that it will not be serialized when it returns null. - The original property you mark with JsonIgnore, unconditionally, so that it will never be serialized itself
- This dummy property would return
null
(and thus be ignored) when the actual property contains an empty list, otherwise it would return that (non-empty) list - Writes to the dummy property just writes to the actual property
Something like this:
QUESTION
I was using pyspark on AWS EMR (4 r5.xlarge as 4 workers, each has one executor and 4 cores), and I got AttributeError: Can't get attribute 'new_block' on . Below is a snippet of the code that threw this error:
...
ANSWER
Answered 2021-Aug-26 at 14:53I had the same error using pandas 1.3.2 in the server while 1.2 in my client. Downgrading pandas to 1.2 solved the problem.
QUESTION
I'm using MediatR
to do Request - Response logging in my application using IPipelineBehavior
Code Sample:
...ANSWER
Answered 2022-Jan-10 at 14:57You need to specify the type of your TRequest
parameter in your abstract class as well. It has to be at least specific as the parameter in the interface you're trying to implement.
QUESTION
I'm build Django app, and it's work fine on my machine, but when I run inside docker container it's rest framework keep crashing, but when I comment any connection with rest framework it's work fine.
- My machine: Kali Linux 2021.3
- docker machine: Raspberry Pi 4 4gb
- docker container image: python:rc-alpine3.14
- python version on my machine: Python 3.9.7
- python version on container: Python 3.10.0rc2
error output:
...ANSWER
Answered 2022-Jan-07 at 19:13You can downgrade your Python version. That should solve your problem; if not, use collections.abc.Mapping
instead of the deprecated collections.Mapping
.
Refer here: Link
QUESTION
I've this sample .NET 6 program printing out a serialised object to XML:
...ANSWER
Answered 2022-Jan-05 at 21:52To write indented xml you can use XmlTextWriter
(instead of just StreamWriter
) with Formatting
set to Formatting.Indented
:
QUESTION
Extended from: Drf how to: simple-jwt authenticating without the USERNAME_FIELD
I was trying to figure out how to authenticate a user with a field that is not set as the USERNAME_FIELD and faced some issues, it lets me input in the correct data fields, but it never authenticates
I'm using this snippet from the previous questions answer:
...ANSWER
Answered 2022-Jan-02 at 10:41If you are using default ModelBackend you should specify USERNAME_FIELD
QUESTION
For converting my GraphQL schema into Dart classes, I'm using the Ferry package, and I run this using build_runner
.
In my database, I've defined the following enum type:
...ANSWER
Answered 2021-Dec-11 at 09:01You should be able to use the class GCurrency
. Can you vars.currency = GCurrency.valueOf(values[5])
?
QUESTION
I'm using C# (.NET 5). Imagine I have a class that stores an array of structures (say, floats):
...ANSWER
Answered 2021-Dec-10 at 19:57To write you can do something like this:
QUESTION
I'm trying to test an API endpoint with a patch request to ensure it works.
I'm using APILiveServerTestCase
but can't seem to get the permissions required to patch the item. I created one user (adminuser
) who is a superadmin with access to everything and all permissions.
My test case looks like this:
...ANSWER
Answered 2021-Dec-11 at 07:34The test you have written is also testing the Django framework logic (ie: Django admin login). I recommend testing your own functionality, which occurs after login to the Django admin. Django's testing framework offers a helper for logging into the admin, client.login
. This allows you to focus on testing your own business logic/not need to maintain internal django authentication business logic tests, which may change release to release.
QUESTION
ANSWER
Answered 2021-Nov-26 at 09:21Here is my approach on how to overcome the multiple queries being made.
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