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Also include radius calculation in study group list all view

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Keannu Bernasol 2023-09-24 21:09:38 +08:00
parent 50fdebf222
commit 05d12073d4
1 changed files with 15 additions and 0 deletions
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15
stude/study_groups/views.py
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@ -43,6 +43,21 @@ class StudyGroupListView(generics.ListAPIView):
# Now fetch the StudyGroups with the matching Subject models # Now fetch the StudyGroups with the matching Subject models
studygroups = StudyGroup.objects.filter(subject__in=user_subjects) studygroups = StudyGroup.objects.filter(subject__in=user_subjects)
for group in studygroups:
# Get all StudentStatus locations of the group
group_locations = group.users.values_list('location', flat=True)
# Convert string locations to GEOSGeometry objects
point_locations = [fromstr(loc, srid=4326)
for loc in group_locations]
# Calculate distances between every pair of locations
distances = [(loc1.distance(
loc2)*100000)for loc1 in point_locations for loc2 in point_locations]
# Get the maximum distance
group_radius = max(distances) if distances else 0
group_radius = max(group_radius, 15)
# Annotate the group with the radius
group.radius = group_radius
return studygroups return studygroups