Add date range filtering to exams with jQuery UI datepicker support

generic/views.py

@@ -43,7 +43,13 @@ from django.views.generic.edit import CreateView, UpdateView, DeleteView
 from django.views.generic.list import ListView
 from django.views.generic.detail import DetailView
 from django_filters.views import FilterView
-from django_filters import FilterSet, OrderingFilter, ModelMultipleChoiceFilter
+from django_filters import (
+    FilterSet,
+    OrderingFilter,
+    ModelMultipleChoiceFilter,
+    DateFromToRangeFilter,
+)
+from django_filters.widgets import DateRangeWidget
 from django_tables2.views import SingleTableMixin
 from reversion.views import RevisionMixin
 from atlas.models import CaseCollection, CaseDetail
@@ -733,6 +739,18 @@ class ExamViews(View, LoginRequiredMixin):
                 fields=(("name", "name"), ("exam_mode", "exam_mode"))
             )
 
+            # Allow filtering by start/end date ranges (render as paired date inputs)
+            start_date = DateFromToRangeFilter(
+                field_name="start_date",
+                label="Start date",
+                widget=DateRangeWidget(attrs={"class": "datepicker", "autocomplete": "off", "placeholder": "dd/mm/yyyy"}),
+            )
+            end_date = DateFromToRangeFilter(
+                field_name="end_date",
+                label="End date",
+                widget=DateRangeWidget(attrs={"class": "datepicker", "autocomplete": "off", "placeholder": "dd/mm/yyyy"}),
+            )
+
             class Meta:
                 model = exam
                 fields = {