adds nature filter to causelists

peachjam/models/judgment.py

@@ -585,11 +585,13 @@ class CauseList(CoreDocument):
     judges = models.ManyToManyField(Judge, blank=True, verbose_name=_("judges"))
 
     def assign_title(self):
-        court_name = self.court.name if self.court else ""
+        court_name = self.registry.name if self.registry else ""
+        if not self.registry:
+            court_name = self.court.name if self.court else ""
         nature_name = self.nature.name if self.nature else ""
-        date_str = self.date.strftime("%Y-%m-%d") if self.date else ""
+        date_str = self.date.strftime("%d %B %Y")
 
-        self.title = f"{court_name} {nature_name} {date_str}"
+        self.title = f"{court_name} - {nature_name} - {date_str}"
 
     def pre_save(self):
         self.assign_title()

peachjam/views/causelist.py

@@ -7,7 +7,15 @@
 from django.views.generic import TemplateView
 
 from peachjam.helpers import lowercase_alphabet
-from peachjam.models import CauseList, Court, CourtClass, CourtRegistry, Judge, Taxonomy
+from peachjam.models import (
+    CauseList,
+    Court,
+    CourtClass,
+    CourtRegistry,
+    DocumentNature,
+    Judge,
+    Taxonomy,
+)
 from peachjam.registry import registry
 from peachjam.views import BaseDocumentDetailView, FilteredDocumentListView
 from peachjam.views.courts import MonthMixin, RegistryMixin
@@ -84,6 +92,25 @@ def get_context_data(self, **kwargs):
 
     def add_facets(self, context):
         context["facet_data"] = {}
+
+        if "natures" not in self.exclude_facets:
+            natures = DocumentNature.objects.filter(
+                pk__in=self.form.filter_queryset(
+                    self.get_base_queryset(), exclude="natures"
+                )
+                .order_by()
+                .values_list("nature_id", flat=True)
+                .distinct()
+            )
+            context["facet_data"]["natures"] = {
+                "label": _("Document nature"),
+                "type": "radio",
+                "options": sorted(
+                    [(n.code, n.name) for n in natures], key=lambda x: x[1]
+                ),
+                "values": self.request.GET.getlist("natures"),
+            }
+
         if "judges" not in self.exclude_facets:
             judges = list(
                 judge