Hi, I am working with a Django rest api project. SO i need some help. I
cant create a update for NESTED SERIALIZER.
models.py
from django.db import models
from datetime import datetime
from django.contrib.auth.models import User
class TimesheetResponse(models.Model):
date = models.DateField("Date")
user = models.ForeignKey(User, default=1, on_delete=models.CASCADE)
date_created = models.DateField(auto_now_add=True)
date_last_updated = models.DateField(auto_now=True)
def __str__(self):
return '{} {}'.format(self.user, self.date, self.date_created,
self.date_last_updated)
class SubjectType(models.Model):
name = models.CharField(max_length=50)
def __str__(self):
return '{}'.format(self.name)
class Subject(models.Model):
name = models.CharField(max_length=50)
subject_type = models.ForeignKey(SubjectType, default=1,
on_delete=models.CASCADE,
related_name='subjects')
def __str__(self):
return '{} {}'.format(self.name, self.subject_type)
class TimesheetResponseUnit(models.Model):
timesheet_response = models.ForeignKey(TimesheetResponse, default=1,
on_delete=models.CASCADE,
related_name='timesheet_response_units')
subject = models.ForeignKey(Subject, default=1, on_delete=models.CASCADE,
related_name='timesheet_response_units')
time_spent = models.IntegerField(default=0)
comments = models.TextField(max_length=255)
def __str__(self):
return '{} {}'.format(self.subject, self.time_spent)
serializer.py
from rest_framework import serializers
from timesheet.models import TimesheetResponse, TimesheetResponseUnit,
SubjectType, Subject
class SubjectSerializer(serializers.ModelSerializer):
class Meta:
model = Subject
fields = ['name', 'subject_type']
class SubjectTypeSerializer(serializers.ModelSerializer):
class Meta:
model = SubjectType
fields = ['name']
extra_kwargs = {'id': {'read_only': True}}
class TimesheetResponseUnitSerializer(serializers.ModelSerializer):
class Meta:
model = TimesheetResponseUnit
fields = ['id', 'time_spent', 'comments', 'subject']
# extra_kwargs = {'id': {'read_only': True}}
class TimesheetResponseSerializer(serializers.ModelSerializer):
timesheet_response_units = TimesheetResponseUnitSerializer(many=True)
class Meta:
model = TimesheetResponse
fields = ['date', 'user', 'timesheet_response_units']
extra_kwargs = {'id': {'read_only': True}}
def create(self, validated_data):
timesheet_response_units =
validated_data.pop('timesheet_response_units')
timesheet_response = super(TimesheetResponseSerializer,
self).create(validated_data)
for timesheet_response_unit_data in timesheet_response_units:
timesheet_response_unit =
TimesheetResponseUnit(**timesheet_response_unit_data,
timesheet_response=timesheet_response)
timesheet_response_unit.save()
return timesheet_response
def update(self, instance, validated_data): ....
Any idea how to build a def update?
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