Re: Django - Angular 4 Serializer for inserting Parent and child Models using single JSON post

Hey dear, how to get out of the group conference? plz help

On Mon, Apr 9, 2018 at 3:22 PM, Nathan Sivathanu <nathan.sivathanupillai@gmail.com> wrote:

My requirement - I have two models TravelReq and TravelReqDetails as below

class TravelReq(models.Model):       empid= models.CharField(max_length=7)       startdate= models.DateField()      enddate= models.DateField()      remarks= models.CharField(max_length=30)      missionname= models.CharField(max_length=30)      def __str__(self):          return str(self.id)    class TravelReqDetails(models.Model):       travelReqID = models.ForeignKey(TravelReq ,related_name  = 'req_details' , on_delete=models.CASCADE );       travelDate= models.DateField()       lfrom = models.CharField(max_length=30)       to= models.CharField(max_length=30)       remarks = models.CharField(max_length=30)    def __str__(self):      return str(self.id)

My serailizer

from  .models import TravelReq ,TravelReqDetails  from rest_framework import serializers    class TravelReqSerializer(serializers.ModelSerializer):      class Meta:          model = TravelReq      fields = ('empid' ,     'startdate' ,   'enddate' , 'remarks' , 'missionname' ,'req_details')code here

My view

from .models import TravelReq   from rest_framework import viewsets  from .serializers import TravelReqSerializer       class TravelReqViewSet(viewsets.ModelViewSet):      """      API endpoint that allows users to be viewed or edited.      """      queryset = TravelReq.objects.all()       serializer_class = TravelReqSerializer

From Angular I will be receiving below JSON as POST / PUT request . What is the best way to insert the master(TravelReq) and child records (TravelReqDetails) from a single serializer. please advice. If this is not the best approach ,please suggest a better / standard approach

[      {          "empid": "32432",          "startdate": "2017-11-16",          "enddate": "2018-03-17",          "remarks": "asd",          "missionname": "asd",          "req_details": [              {                  "id": 1,                  "travelDate": "2017-07-18",                  "lfrom": "indiaemarks",                  "to": "pakistan",                  "remarks": "r",                  "travelReqID": <<need to  get from parent travel request>>               },              {                  "id": 2,                  "travelDate": "2018-04-02",                  "lfrom": "pakistan",                  "to": "india",                  "remarks": "rerutn remarks",                  "travelReqID":  <<need to  get from parent travel request>>              }          ]      },

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