feat: add community contribution ranks

apps/events/admin.py

@@ -1,10 +1,12 @@
 from django.contrib import admin
 from import_export.admin import ImportExportModelAdmin
+from django.utils import timezone
 
 from core.admin import BaseModelAdmin, SoftDeleteListFilter
 from core.templatetags.jalali import jdate
 from apps.events.models import Event, Registration
 from apps.events.resources import EventResource, RegistrationResource
+from apps.events.services import verify_registration_attendance
 
 
 @admin.register(Event)
@@ -107,13 +109,17 @@ class RegistrationAdmin(BaseModelAdmin, ImportExportModelAdmin):
     readonly_fields = (
         'ticket_id', 'registered_at', 'confirmation_notification_sent_at',
         'cancellation_notification_sent_at', 'discount_code', 'discount_amount',
-        'final_price', 'deleted_at',
+        'final_price', 'deleted_at', 'attendance_verified_at',
+        'attendance_verified_by', 'attendance_verification_source',
     )
     fieldsets = (
         ('Registration Details', {'fields': (
             'user', 'event', 'status', 'registered_at', 'ticket_id',
             'confirmation_notification_sent_at', 'cancellation_notification_sent_at',
         )}),
+        ('Attendance verification', {'fields': (
+            'attendance_verified_at', 'attendance_verified_by', 'attendance_verification_source',
+        )}),
         ('Pricing & Discount', {
             'fields': ('discount_code', 'discount_amount', 'final_price'),
             'classes': ('collapse',),
@@ -144,8 +150,28 @@ class RegistrationAdmin(BaseModelAdmin, ImportExportModelAdmin):
 
     @admin.action(description='Mark selected registrations as attended')
     def mark_attended(self, request, queryset):
-        queryset.update(status=Registration.StatusChoices.ATTENDED)
-        self.message_user(request, f'Marked {queryset.count()} registrations as attended.')
+        count = 0
+        for registration in queryset:
+            verify_registration_attendance(
+                registration,
+                verifier=request.user,
+                source=Registration.AttendanceVerificationSource.STAFF_ADMIN,
+            )
+            count += 1
+        self.message_user(request, f'Marked {count} registrations as attended.')
+
+    def save_model(self, request, obj, form, change):
+        previous_status = None
+        if change and obj.pk:
+            previous_status = Registration.all_objects.filter(pk=obj.pk).values_list("status", flat=True).first()
+        if (
+            obj.status == Registration.StatusChoices.ATTENDED
+            and (previous_status != Registration.StatusChoices.ATTENDED or not obj.attendance_verified_at)
+        ):
+            obj.attendance_verified_by = request.user
+            obj.attendance_verified_at = timezone.now()
+            obj.attendance_verification_source = Registration.AttendanceVerificationSource.STAFF_ADMIN
+        super().save_model(request, obj, form, change)
 
     @admin.action(description='Restore selected registrations')
     def restore_registrations(self, request, queryset):