Django rest framework serializing many to many field

Michael Zippo

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How do I serialize a many-to-many field into list of something, and return them through rest framework? In my example below, I try to return the post together with a list of tags associated with it.

models.py

class post(models.Model):
    tag = models.ManyToManyField(Tag)
    text = models.CharField(max_length=100)

serializers.py

class PostSerializer(serializers.ModelSerializer):
    class Meta:
        model = Post
        fields = ("text", "tag"??)

views.py

class PostViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = Post.objects.all()
    serializer_class = PostSerializer

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Django rest framework serializing many to many field del: Questions

__del__

How can I make a time delay in Python?

5 answers

I would like to know how to put a time delay in a Python script.

2973

Answer #1

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

Here is another example where something is run approximately once a minute:

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

2973

Answer #2

You can use the sleep() function in the time module. It can take a float argument for sub-second resolution.

from time import sleep
sleep(0.1) # Time in seconds

Django rest framework serializing many to many field del: Questions

__del__

How to delete a file or folder in Python?

5 answers

How do I delete a file or folder in Python?

2639

Answer #1

os.remove() removes a file.
os.rmdir() removes an empty directory.
shutil.rmtree() deletes a directory and all its contents.

Path objects from the Python 3.4+ pathlib module also expose these instance methods:

pathlib.Path.unlink() removes a file or symbolic link.
pathlib.Path.rmdir() removes an empty directory.

We hope this article has helped you to resolve the problem. Apart from Django rest framework serializing many to many field, check other __del__-related topics.

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Jan Wu

Abu Dhabi | 2023-03-24

re Python module is always a bit confusing 😭 Django rest framework serializing many to many field is not the only problem I encountered. I am just not quite sure it is the best method

Olivia Wu

Paris | 2023-03-24

Maybe there are another answers? What Django rest framework serializing many to many field exactly means?. I am just not quite sure it is the best method

Davies Gonzalez

Milan | 2023-03-24

Thanks for explaining! I was stuck with Django rest framework serializing many to many field for some hours, finally got it done 🤗. I just hope that will not emerge anymore