Implemented geofencing logic for student_status and study_groups with landmark labels

stude/landmarks/models.py

@@ -8,7 +8,7 @@ from django.dispatch import receiver
 
 class Landmark(models.Model):
     name = models.CharField(max_length=64)
-    location = gis_models.PolygonField()
+    location = gis_models.PolygonField(srid=4326)
 
     def __str__(self):
         return self.name
@@ -178,7 +178,7 @@ def populate_landmarks(sender, **kwargs):
                 'POLYGON ((124.655534 8.485857, 124.655629 8.485588, 124.655795 8.485647, 124.655755 8.485757, 124.656271 8.485946, 124.656212 8.486104, 124.655534 8.485857))',
                 srid=SRID
             )
-        ) 
+        )
         Landmark.objects.get_or_create(
             name='Science Complex',
             location=GEOSGeometry(

stude/student_status/admin.py

@@ -2,4 +2,14 @@ from django.contrib import admin
 from .models import StudentStatus
 from leaflet.admin import LeafletGeoAdmin
 
-admin.site.register(StudentStatus, LeafletGeoAdmin)
+
+class StudentStatusAdmin(LeafletGeoAdmin):
+    # define which fields are required
+    def get_form(self, request, obj=None, **kwargs):
+        form = super(StudentStatusAdmin, self).get_form(request, obj, **kwargs)
+        form.base_fields['landmark'].required = False
+        return form
+
+
+# Register the new StudentStatus model
+admin.site.register(StudentStatus, StudentStatusAdmin)

stude/student_status/migrations/0003_studentstatus_landmark.py

@@ -0,0 +1,20 @@
+# Generated by Django 4.2.3 on 2023-07-14 14:51
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('landmarks', '0001_initial'),
+        ('student_status', '0002_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='studentstatus',
+            name='landmark',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='landmarks.landmark'),
+        ),
+    ]

stude/student_status/models.py

@@ -9,11 +9,13 @@ from django.contrib.gis.geos import Point
 class StudentStatus(models.Model):
     user = models.OneToOneField(
         CustomUser, on_delete=models.CASCADE, primary_key=True)
-    location = gis_models.PointField(blank=True, null=True)
+    location = gis_models.PointField(blank=True, null=True, srid=4326)
     subject = models.ForeignKey(
         'subjects.Subject', on_delete=models.SET_NULL, null=True)
     active = models.BooleanField(default=False)
     timestamp = models.DateField(auto_now_add=True)
+    landmark = models.ForeignKey(
+        'landmarks.Landmark', on_delete=models.SET_NULL, null=True)
     study_group = models.ManyToManyField(
         'study_groups.StudyGroup', through='study_groups.StudyGroupMembership', blank=True)
 

stude/student_status/serializers.py

@@ -2,17 +2,22 @@ from rest_framework import serializers
 from .models import StudentStatus
 from subjects.models import Subject
 from django.contrib.gis.geos import Point
+from drf_extra_fields.geo_fields import PointField
+from landmarks.models import Landmark
 
 
 class StudentStatusSerializer(serializers.ModelSerializer):
     subject = serializers.SlugRelatedField(
         queryset=Subject.objects.all(), slug_field='name', required=True)
     user = serializers.CharField(source='user.full_name', read_only=True)
+    location = PointField()
+    landmark = serializers.SlugRelatedField(
+        queryset=Landmark.objects.all(), many=False, slug_field='name', required=False, allow_null=True)
 
     class Meta:
         model = StudentStatus
         fields = '__all__'
-        read_only_fields = ['user']
+        read_only_fields = ['user', 'landmark']
 
     def create(self, validated_data):
         user = self.context['request'].user
@@ -26,5 +31,12 @@ class StudentStatusSerializer(serializers.ModelSerializer):
         if active is not None and active is False:
             validated_data['location'] = Point(0, 0)
             validated_data['subject'] = None
+            validated_data['landmark'] = None
+        else:
+            # Check each landmark to see if our location is within it
+            for landmark in Landmark.objects.all():
+                if landmark.location.contains(validated_data['location']):
+                    validated_data['landmark'] = landmark
+                    break
 
         return super().update(instance, validated_data)

stude/study_groups/models.py

@@ -9,7 +9,7 @@ class StudyGroup(models.Model):
     name = models.CharField(max_length=48)
     users = models.ManyToManyField(
         'student_status.StudentStatus', through='StudyGroupMembership')
-    location = gis_models.PointField(blank=True, null=True)
+    location = gis_models.PointField(blank=True, null=True, srid=4326)
     subject = models.ForeignKey(Subject, on_delete=models.CASCADE)
     active = models.BooleanField(default=False)
     timestamp = models.DateField(auto_now_add=True)

stude/study_groups/serializers.py

@@ -2,6 +2,7 @@ from rest_framework import serializers
 from .models import StudyGroup, StudyGroupMembership
 from accounts.models import CustomUser
 from subjects.models import Subject
+from drf_extra_fields.geo_fields import PointField
 
 
 class StudyGroupSerializer(serializers.ModelSerializer):
@@ -9,6 +10,7 @@ class StudyGroupSerializer(serializers.ModelSerializer):
         queryset=CustomUser.objects.all(), many=True, slug_field='name', required=False, allow_null=True)
     subject = serializers.SlugRelatedField(
         many=False, slug_field='name', queryset=Subject.objects.all(), required=True, allow_null=False)
+    location = PointField()
 
     class Meta:
         model = StudyGroup