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

aircox/views/mixins.py

@@ -80,3 +80,31 @@ class AttachedToMixin:
                              .published().first()
         return super().get_page()
 
+
+class FiltersMixin:
+    """ Mixin integrating Django filters' filter set """
+    filterset = None
+    filterset_class = None
+
+    def get_filterset(self, data, query):
+        return self.filterset_class(data, query)
+    
+    def get_queryset(self):
+        query = super().get_queryset()
+        if self.filterset_class:
+            self.filterset = self.get_filterset(self.request.GET.copy(), query)
+            return self.filterset.qs
+        return query
+
+    def get_context_data(self, **kwargs):
+        filterset = kwargs.setdefault('filterset', self.filterset)
+        if filterset.is_valid():
+            kwargs['filterset_data'] = filterset.form.cleaned_data
+        else:
+            kwargs['filterset_data'] = {}
+
+        params = self.request.GET.copy()
+        kwargs['get_params'] = params.pop('page', True) and params
+        return super().get_context_data(**kwargs)
+
+