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https://github.com/lemeow125/StudE-Backend.git
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62 lines
2.4 KiB
Python
62 lines
2.4 KiB
Python
from rest_framework import serializers, exceptions
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from .models import StudentStatus
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from subjects.models import Subject
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from django.contrib.gis.geos import Point
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from drf_extra_fields.geo_fields import PointField
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from landmarks.models import Landmark
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class StudentStatusSerializer(serializers.ModelSerializer):
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subject = serializers.SlugRelatedField(
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queryset=Subject.objects.all(), slug_field='name', required=True)
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user = serializers.CharField(source='user.full_name', read_only=True)
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location = PointField(required=True)
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landmark = serializers.SlugRelatedField(
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queryset=Landmark.objects.all(), many=False, slug_field='name', required=False, allow_null=True)
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timestamp = serializers.DateTimeField(format="%Y-%m-%d %H:%M:%S")
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active = serializers.BooleanField(required=True)
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class Meta:
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model = StudentStatus
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fields = ['user', 'subject', 'location',
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'timestamp', 'active', 'study_group', 'landmark']
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read_only_fields = ['user', 'landmark']
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def create(self, validated_data):
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user = self.context['request'].user
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student_status = StudentStatus.objects.create(
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user=user, defaults=validated_data)
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return student_status
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def update(self, instance, validated_data):
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active = validated_data.get('active', None)
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# subject = validated_data.get('subject', None)
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# If status is set as false in the request, clear the student status
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if active is False:
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validated_data['location'] = Point(0, 0)
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validated_data['subject'] = None
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validated_data['landmark'] = None
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validated_data['study_group'] = None
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else:
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if 'subject' not in validated_data:
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raise serializers.ValidationError(
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{'subject': 'This field may not be empty if active is true'})
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# To-do: Add geofencing to ensure locations are always within USTP
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# Check each landmark to see if our location is within it
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for landmark in Landmark.objects.all():
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if landmark.location.contains(validated_data['location']):
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validated_data['landmark'] = landmark
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break
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return super().update(instance, validated_data)
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class StudentStatusLocationSerializer(serializers.ModelSerializer):
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location = PointField(required=True)
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class Meta:
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model = StudentStatus
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fields = ['location']
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