437 lines
16 KiB
Python
437 lines
16 KiB
Python
import os
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import platform
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import math
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from django.db import models
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from django.shortcuts import render, redirect
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from django.contrib.auth import login, logout, authenticate
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from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
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from django.contrib.auth.decorators import login_required
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from django.contrib import messages
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from django.utils import timezone
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from .models import Donor, BloodRequest, BloodBank, VaccineRecord, UserProfile, BLOOD_GROUPS, DonationEvent, Notification, Hospital
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from .forms import UserUpdateForm, ProfileUpdateForm, UserRegisterForm
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def hospital_list(request):
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user_lat = request.GET.get('lat')
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user_lng = request.GET.get('lng')
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hospitals = Hospital.objects.all()
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hospital_list_data = list(hospitals)
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if user_lat and user_lng:
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try:
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u_lat = float(user_lat)
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u_lng = float(user_lng)
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for h in hospital_list_data:
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if h.latitude and h.longitude:
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h.distance = haversine(u_lat, u_lng, float(h.latitude), float(h.longitude))
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else:
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h.distance = 999999
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hospital_list_data.sort(key=lambda x: x.distance)
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except ValueError:
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hospital_list_data.sort(key=lambda x: x.name)
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else:
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hospital_list_data.sort(key=lambda x: x.name)
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return render(request, 'core/hospital_list.html', {'hospitals': hospital_list_data})
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@login_required
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def profile(request):
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# Ensure user has a profile
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profile, created = UserProfile.objects.get_or_create(user=request.user)
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if request.method == 'POST':
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u_form = UserUpdateForm(request.POST, instance=request.user)
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p_form = ProfileUpdateForm(request.POST, request.FILES, instance=profile)
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if u_form.is_valid() and p_form.is_valid():
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u_form.save()
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p_form.save()
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messages.success(request, f'Your account has been updated!')
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return redirect('profile')
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else:
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u_form = UserUpdateForm(instance=request.user)
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p_form = ProfileUpdateForm(instance=profile)
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context = {
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'u_form': u_form,
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'p_form': p_form
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}
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return render(request, 'core/profile.html', context)
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def haversine(lat1, lon1, lat2, lon2):
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# Radius of the Earth in km
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R = 6371.0
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dlat = math.radians(lat2 - lat1)
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dlon = math.radians(lon2 - lon1)
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a = math.sin(dlat / 2)**2 + math.cos(math.radians(lat1)) * math.cos(math.radians(lat2)) * math.sin(dlon / 2)**2
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c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - a))
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return R * c
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def login_view(request):
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if request.method == "POST":
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form = AuthenticationForm(request, data=request.POST)
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if form.is_valid():
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user = form.get_user()
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login(request, user)
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messages.success(request, f"Welcome back, {user.username}!")
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return redirect("home")
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else:
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messages.error(request, "Invalid username or password. Please try again.")
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else:
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form = AuthenticationForm()
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return render(request, "core/login.html", {"form": form})
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def logout_view(request):
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logout(request)
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return redirect("home")
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def register_view(request):
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if request.method == "POST":
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form = UserRegisterForm(request.POST)
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if form.is_valid():
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user = form.save()
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profile = user.profile
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profile.blood_group = form.cleaned_data.get('blood_group')
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profile.location = form.cleaned_data.get('location')
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profile.phone = form.cleaned_data.get('phone')
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profile.save()
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login(request, user)
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messages.success(request, f"Welcome to RaktaPulse, {user.username}! You are now a registered donor.")
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return redirect("home")
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else:
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form = UserRegisterForm()
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return render(request, "core/register.html", {"form": form})
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def home(request):
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"""Render the RaktaPulse Dashboard experience."""
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query_blood = request.GET.get('blood_group', '')
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query_location = request.GET.get('location', '')
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user_lat = request.GET.get('lat')
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user_lng = request.GET.get('lng')
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donors = Donor.objects.all()
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if query_blood:
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donors = donors.filter(blood_group=query_blood)
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if query_location:
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donors = donors.filter(location__icontains=query_location)
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donor_list_data = list(donors)
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if user_lat and user_lng:
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try:
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u_lat = float(user_lat)
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u_lng = float(user_lng)
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for d in donor_list_data:
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if d.latitude and d.longitude:
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d.distance = haversine(u_lat, u_lng, float(d.latitude), float(d.longitude))
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else:
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d.distance = 999999 # Very far
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donor_list_data.sort(key=lambda x: x.distance)
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except ValueError:
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donor_list_data.sort(key=lambda x: (-x.is_available, x.name))
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else:
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donor_list_data.sort(key=lambda x: (-x.is_available, x.name))
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blood_requests = BloodRequest.objects.filter(status='Active').order_by('-urgency', '-created_at')
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blood_banks = BloodBank.objects.all()
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# Stats for Dashboard
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stats = {
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"total_donors": Donor.objects.count(),
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"active_requests": BloodRequest.objects.filter(status='Active').count(),
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"total_stock": sum([
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bb.stock_a_plus + bb.stock_a_minus + bb.stock_b_plus + bb.stock_b_minus +
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bb.stock_o_plus + bb.stock_o_minus + bb.stock_ab_plus + bb.stock_ab_minus
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for bb in blood_banks
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]),
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"total_capacity": sum([bb.total_capacity * 8 for bb in blood_banks]), # 8 blood types
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"vaccinated_percentage": 0
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}
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total_d = stats["total_donors"]
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if total_d > 0:
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vaccinated_count = Donor.objects.filter(vaccination_status__icontains='Fully').count()
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stats["vaccinated_percentage"] = int((vaccinated_count / total_d) * 100)
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context = {
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"donors": donor_list_data[:8],
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"blood_requests": blood_requests[:6],
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"blood_banks": blood_banks,
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"blood_groups": [g[0] for g in BLOOD_GROUPS],
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"stats": stats,
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"project_name": "RaktaPulse",
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"current_time": timezone.now(),
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}
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if request.user.is_authenticated:
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# Get active involvements (where user is donor or requester)
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involved_events = DonationEvent.objects.filter(
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(models.Q(donor_user=request.user) | models.Q(request__user=request.user)),
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is_completed=False
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)
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context["involved_events"] = involved_events
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return render(request, "core/index.html", context)
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def donor_list(request):
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blood_group = request.GET.get('blood_group', '')
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district = request.GET.get('district', '')
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user_lat = request.GET.get('lat')
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user_lng = request.GET.get('lng')
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donors = Donor.objects.all()
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if blood_group:
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donors = donors.filter(blood_group=blood_group)
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if district:
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donors = donors.filter(district__icontains=district)
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donor_list_data = list(donors)
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if user_lat and user_lng:
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try:
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u_lat = float(user_lat)
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u_lng = float(user_lng)
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for d in donor_list_data:
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if d.latitude and d.longitude:
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d.distance = haversine(u_lat, u_lng, float(d.latitude), float(d.longitude))
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else:
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d.distance = 999999
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donor_list_data.sort(key=lambda x: x.distance)
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except ValueError:
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donor_list_data.sort(key=lambda x: (-x.is_verified, x.name))
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else:
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donor_list_data.sort(key=lambda x: (-x.is_verified, x.name))
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context = {
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'donors': donor_list_data,
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'blood_groups': [g[0] for g in BLOOD_GROUPS],
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}
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return render(request, 'core/donor_list.html', context)
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def blood_request_list(request):
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status = request.GET.get('status', '')
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requests = BloodRequest.objects.all()
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if status:
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requests = requests.filter(status=status)
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requests = requests.order_by('-created_at')
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context = {
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'requests': requests,
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'current_status': status,
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}
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return render(request, 'core/blood_request_list.html', context)
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def blood_bank_list(request):
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user_lat = request.GET.get('lat')
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user_lng = request.GET.get('lng')
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banks = BloodBank.objects.all()
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bank_list_data = list(banks)
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if user_lat and user_lng:
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try:
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u_lat = float(user_lat)
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u_lng = float(user_lng)
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for b in bank_list_data:
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if b.latitude and b.longitude:
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b.distance = haversine(u_lat, u_lng, float(b.latitude), float(b.longitude))
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else:
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b.distance = 999999
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bank_list_data.sort(key=lambda x: x.distance)
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except ValueError:
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pass
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context = {
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'banks': bank_list_data,
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}
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return render(request, 'core/blood_bank_list.html', context)
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def vaccination_info(request):
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stats = {
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"total_donors": Donor.objects.count(),
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"vaccinated_count": Donor.objects.filter(vaccination_status__icontains='Fully').count(),
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}
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if stats["total_donors"] > 0:
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stats["percentage"] = int((stats["vaccinated_count"] / stats["total_donors"]) * 100)
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else:
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stats["percentage"] = 0
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return render(request, 'core/vaccination_info.html', {'stats': stats})
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def live_map(request):
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"""View to display live alerts/requests on a map."""
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active_requests = BloodRequest.objects.filter(status='Active').order_by('-created_at')
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# Also include blood banks and donors optionally if we want a full map
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# But focusing on alerts as requested.
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context = {
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'requests': active_requests,
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'title': 'Live Alert Map',
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}
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return render(request, 'core/live_map.html', context)
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def request_blood(request):
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"""View to create a new blood request with geolocation."""
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if request.method == "POST":
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patient_name = request.POST.get('patient_name')
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blood_group = request.POST.get('blood_group')
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location = request.POST.get('location')
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urgency = request.POST.get('urgency')
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hospital = request.POST.get('hospital')
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contact_number = request.POST.get('contact_number')
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latitude = request.POST.get('latitude')
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longitude = request.POST.get('longitude')
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if patient_name and blood_group and hospital and contact_number:
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BloodRequest.objects.create(
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user=request.user if request.user.is_authenticated else None,
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patient_name=patient_name,
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blood_group=blood_group,
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location=location,
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urgency=urgency,
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hospital=hospital,
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contact_number=contact_number,
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latitude=latitude if latitude else None,
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longitude=longitude if longitude else None
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)
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messages.success(request, "Blood request posted successfully! Help is on the way.")
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return redirect('blood_request_list')
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else:
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messages.error(request, "Please fill in all required fields.")
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context = {
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'blood_groups': [g[0] for g in BLOOD_GROUPS],
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'urgency_levels': BloodRequest.URGENCY_LEVELS,
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'selected_hospital': request.GET.get('hospital', ''),
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}
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return render(request, 'core/request_blood.html', context)
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@login_required
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def vaccination_dashboard(request):
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records = VaccineRecord.objects.filter(user=request.user).order_by('-date_taken')
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context = {
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'records': records,
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'project_name': "RaktaPulse",
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}
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return render(request, 'core/vaccination_dashboard.html', context)
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@login_required
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def add_vaccination(request):
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if request.method == "POST":
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vaccine_name = request.POST.get('vaccine_name')
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dose_number = request.POST.get('dose_number')
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date_taken = request.POST.get('date_taken')
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location = request.POST.get('location')
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center_name = request.POST.get('center_name')
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notes = request.POST.get('notes')
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if vaccine_name and dose_number and date_taken:
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VaccineRecord.objects.create(
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user=request.user,
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vaccine_name=vaccine_name,
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dose_number=dose_number,
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date_taken=date_taken,
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location=location,
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center_name=center_name,
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notes=notes
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)
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messages.success(request, "Vaccination record added successfully!")
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return redirect('vaccination_dashboard')
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else:
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messages.error(request, "Please fill in all required fields.")
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return render(request, 'core/add_vaccination.html')
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@login_required
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def volunteer_for_request(request, request_id):
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blood_request = BloodRequest.objects.get(id=request_id)
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donor_profile = getattr(request.user, 'donor_profile', None)
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if not donor_profile:
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messages.error(request, "You need to be registered as a donor to volunteer.")
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return redirect('donor_list')
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# Check if already volunteered
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if DonationEvent.objects.filter(donor=donor_profile, request=blood_request).exists():
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messages.warning(request, "You have already volunteered for this request.")
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else:
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DonationEvent.objects.create(
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donor=donor_profile,
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request=blood_request,
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donor_user=request.user
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)
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messages.success(request, "Thank you for volunteering! The requester has been notified.")
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# Notify the requester
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if blood_request.user:
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Notification.objects.create(
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user=blood_request.user,
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message=f"Donor {request.user.username} has volunteered to help {blood_request.patient_name}!"
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)
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return redirect('blood_request_list')
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@login_required
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def complete_donation(request, event_id):
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event = DonationEvent.objects.get(id=event_id)
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# Only the requester or the donor can mark as complete (for simplicity, letting both)
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if request.user == event.donor_user or (event.request.user and request.user == event.request.user):
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event.is_completed = True
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event.save()
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# Notify both
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Notification.objects.create(
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user=event.donor_user,
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message=f"Thank you for your donation to {event.request.patient_name}!"
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)
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if event.request.user:
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Notification.objects.create(
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user=event.request.user,
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message=f"We hope the donation for {event.request.patient_name} went well."
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)
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messages.success(request, "Donation marked as completed. Thank you!")
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else:
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messages.error(request, "You are not authorized to complete this event.")
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return redirect('home')
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@login_required
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def notifications_view(request):
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notifications = Notification.objects.filter(user=request.user).order_by('-created_at')
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# Mark as read when viewed
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notifications.filter(is_read=False).update(is_read=True)
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return render(request, 'core/notifications.html', {'notifications': notifications})
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@login_required
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def register_donor(request):
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if hasattr(request.user, 'donor_profile'):
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messages.info(request, "You are already registered as a donor.")
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return redirect('profile')
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if request.method == "POST":
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blood_group = request.POST.get('blood_group')
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location = request.POST.get('location')
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phone = request.POST.get('phone')
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if blood_group and phone:
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Donor.objects.create(
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user=request.user,
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name=request.user.username,
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blood_group=blood_group,
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location=location,
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phone=phone,
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is_available=True
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)
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messages.success(request, "Congratulations! You are now a registered donor.")
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return redirect('donor_list')
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else:
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messages.error(request, "Please fill in all required fields.")
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return render(request, 'core/register_donor.html', {'blood_groups': [g[0] for g in BLOOD_GROUPS]})
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