[Solved]-Got AttributeError when attempting to get a value for field 'status_code'

by

1👍

answer: use related_name attr

models.py

class MedTest(models.Model):
    date_kit_ord = models.DateTimeField()
    test_date = models.DateTimeField()
    status = models.CharField(max_length=100)
    hiv4g_test_date = models.DateTimeField(blank=True, null=True)
    hivms_test_date = models.DateTimeField(blank=True, null=True)
    user = models.ForeignKey(User)

class MedTestResult(models.Model):
    med_test_result = models.CharField(max_length=100)
    med_test = models.ForeignKey(MedTest, related_name='med_tests')
    result_date = models.DateTimeField(null=True, blank=True)
    test_started = models.DateTimeField(null=True, blank=True)
    status_code = models.CharField(max_length=25)
    value = models.IntegerField(null=True, blank=True)
    hiv4g_rsltdate = models.DateTimeField(null=True, blank=True)
    hivms_rsltdate = models.DateTimeField(null=True, blank=True)
    hiv4gpos = models.CharField(max_length=100, null=True, blank=True)
    hiv4gneg = models.CharField(max_length=100, null=True, blank=True)
    hiv4gind = models.CharField(max_length=100, null=True, blank=True)
    hiv4grej = models.CharField(max_length=100, null=True, blank=True)
    hivmpos = models.CharField(max_length=100, null=True, blank=True)
    hivmsneg = models.CharField(max_length=100, null=True, blank=True)
    hivmsind = models.CharField(max_length=100, null=True, blank=True)
    hivmsrej = models.CharField(max_length=100, null=True, blank=True)

tracing.py

import os
import django

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'youproject.settings')

django.setup()

from rest_framework import serializers

from frontend import models as fm

class MedTestResultSerializer(serializers.ModelSerializer):
    class Meta:
        model = fm.MedTestResult
        fields = ('result_date',
                  'value',
                  'test_started',
                  'status_code')

class MedTestSerializer(serializers.ModelSerializer):
    username = serializers.CharField(source='user.username')
    user_id = serializers.CharField(source='user.id')
    med_tests = MedTestResultSerializer(many=True)

    class Meta:
        model = fm.MedTest
        fields = (
            'med_tests',
            'user_id',
            'username',
        )


print MedTestSerializer(fm.MedTest.objects.all()[0]).data

And very hard to read you code (style, naming conventions, etc) try two scoops

👤vadimchin

1👍

I think django-rest-framework uses status_code somewhere, you might want to try renaming your status_code field to something else.

👤eugene

0👍

The issues might be in the view like in my case. If you define the wrong queryset in your view you will get this error. e.g

class YourViewSet(ModelViewSet):
    queryset = WrongModel.objects.all()
    serializer_class = YourSerializer

If you use a different model for your queryset value from the one defined in your serializer, you will get that error.

👤theTypan

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