use django filters + search filter; still need adapts sub-page list views

aircox/filters.py

@@ -0,0 +1,26 @@
+from django.utils.translation import gettext_lazy as _
+import django_filters as filters
+
+from .models import Page, Episode
+
+
+class PageFilters(filters.FilterSet):
+    q = filters.CharFilter(method='search_filter', label=_('Search'))
+    
+    class Meta:
+        model = Page
+        fields = {
+            'category__id': ['in'],
+            'pub_date': ['exact', 'gte', 'lte'],
+        }
+
+    def search_filter(self, queryset, name, value):
+        return queryset.search(value)
+
+
+class EpisodeFilters(PageFilters):
+    class Meta:
+        model = Episode
+        fields = {
+        }
+