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Also update study group radius calculation for nearby study groups view

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Keannu Bernasol 2023-10-27 23:49:06 +08:00
parent f6e0483706
commit 7b5e84c400
1 changed files with 13 additions and 13 deletions
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26
stude/study_groups/views.py
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@ -137,20 +137,20 @@ class StudyGroupListNearView(generics.ListAPIView):
distance=Distance('location', user_location)).filter(distance__lte=100)
for group in studygroups:
# Get all StudentStatus locations of the group
group_locations = group.students.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
# Get the number of students in a group
student_count = group.students.values_list(
'user', flat=True).count()
# Each student will contribute 10 to the radius
radius = student_count * 10
# If the radius exceeds 50, set it back to 50
if (radius > 50):
radius = 50
# (For debug purposes) If radius is less than 5, set it back to 5
elif (radius < 5):
radius = 5
# Annotate the group with the radius
group.radius = radius
return studygroups