Direct assignment to the reverse side issue with multiple nested serializer - django

Question

I have this issue while running some test on my django project:
TypeError: Direct assignment to the reverse side of a related set is prohibited. Use files.set() instead.
Here is what I try to post
{
"daily_hash": "w54c6w546w5v46w5v4",
"modules": [
{
"module": "main",
"commits": [
{
"commit_hash": "11feb543f016114c700046d42b912910321230da",
"author": "Test name 1",
"subject": "[TICKET] Subject of the issue",
"files": []
},
{
"commit_hash": "093b19f710c6d2358b0812434dfcf1549c9c6fbb",
"author": "Test name 1",
"subject": "[TICKET] Subject of the issue",
"files": []
}
]
},
{
"module": "submodule",
"commits": [
{
"commit_hash": "dce22dea52a6a4b7160034d3f84a7af7b389ee96",
"author": "Test name 3",
"subject": "[TICKET] Subject of the issue",
"files": [
{
"name": "my_file_1.c"
},
{
"name": "my_file_2.c"
}
]
},
{
"commit_hash": "cee433fc4ab46464afb96d6ecae2839409fe0313",
"author": "Test name 4",
"subject": "[TICKET] Subject of the issue",
"files": []
},
{
"commit_hash": "4534f511b2a6a8c1632a1ab97b598d8e4dedada7",
"author": "Test name 1",
"subject": "[TICKET] Subject of the issue",
"files": []
}
]
}
]
}
You can find below my models.py:
from django.db import models
from status.models import Daily
class Component(models.Model):
"""
Component model
"""
module = models.CharField(max_length=40)
daily = models.ForeignKey(Daily, on_delete=models.CASCADE)
class Meta:
db_table = 'gds_component'
class Commit(models.Model):
"""
Commits model
"""
commit_hash = models.CharField(max_length=40)
author = models.CharField(max_length=60)
subject = models.CharField(max_length=250)
component = models.ForeignKey(
Component, related_name='commits',
on_delete=models.CASCADE)
class Meta:
db_table = 'gds_commit'
class File(models.Model):
"""
Commit files model
"""
name = models.CharField(max_length=250)
commit = models.ForeignKey(
Commit, related_name='files',
on_delete=models.CASCADE)
class Meta:
db_table = 'gds_commit_file'
My serializer here:
class FileSerializer(serializers.ModelSerializer):
class Meta:
model = models.File
exclude = ['commit']
class CommitSerializer(serializers.ModelSerializer):
files = FileSerializer(
required=False,
allow_null=True,
many=True
)
class Meta:
model = models.Commit
fields = ('commit_hash', 'author', 'subject', 'files')
def create(self, validated_data):
files_valid_data = validated_data.pop('files')
commit = models.Commit.objects.create(**validated_data)
for file_data in files_valid_data:
models.File.objects.create(commit=commit, **file_data)
return commit
class CompoSerializer(serializers.ModelSerializer):
commits = CommitSerializer(
required=False,
allow_null=True,
many=True
)
class Meta:
model = models.Component
fields = ('module', 'daily', 'commits')
def create(self, validated_data):
commits_valid_data = validated_data.pop('commits')
component = models.Component.objects.create(**validated_data)
for commit_data in commits_valid_data:
models.Commit.objects.create(component=component, **commit_data)
return component
And finally my view.py
#api_view(['POST'])
def post_commit(request):
if request.method == 'POST':
# Get the md5 hash to get it's id
valid_data = request.data
hash_data = valid_data.pop('daily_hash')
try:
daily_obj = Daily.objects.get(daily_key=hash_data)
except Daily.DoesNotExist:
return Response(status=status.HTTP_404_NOT_FOUND)
# Add daily_id to all modules
serializer_data = valid_data.pop('modules')
for elem in serializer_data:
elem['daily'] = daily_obj.id
# Serialize the data
serializer = serializers.CompoSerializer(data=serializer_data, many=True)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
# throw an error if something wrong hapen
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
I tried so many things and now i'm totally lost. I think the issue is because I have multiple nested serializer but I'm not sure. Can anyone tell me the right direction to take ?
Best regards
Steph