Add django filter for patient review missed

care/facility/api/viewsets/patient.py

@@ -6,6 +6,7 @@
 from django.contrib.postgres.search import TrigramSimilarity
 from django.db import models
 from django.db.models import Case, OuterRef, Q, Subquery, When
+from django.utils import timezone
 from django_filters import rest_framework as filters
 from djqscsv import render_to_csv_response
 from drf_spectacular.utils import extend_schema, extend_schema_view
@@ -225,6 +226,15 @@ def filter_bed_not_null(self, queryset, name, value):
             last_consultation__discharge_date__isnull=True,
         )
 
+    def filter_by_review_missed(self, queryset, name, value):
+        if value:
+            queryset = queryset.filter(
+                (Q(review_time__isnull=False) & Q(review_time__lt=timezone.now()))
+            )
+        return queryset
+
+    review_missed = filters.BooleanFilter(method="filter_by_review_missed")
+
     # Filter consultations by ICD-11 Diagnoses
     diagnoses = MultiSelectFilter(method="filter_by_diagnoses")
     diagnoses_unconfirmed = MultiSelectFilter(method="filter_by_diagnoses")