I removed the model save/delete hooks for index updates since they were causing too much trouble with migrations

src/documents/admin.py

@@ -2,7 +2,9 @@ from django.contrib import admin
 from django.contrib.auth.models import Group, User
 from django.utils.html import format_html, format_html_join
 from django.utils.safestring import mark_safe
+from whoosh.writing import AsyncWriter
 
+from . import index
 from .models import Correspondent, Document, DocumentType, Log, Tag
 
 
@@ -71,6 +73,21 @@ class DocumentAdmin(admin.ModelAdmin):
         return obj.created.date().strftime("%Y-%m-%d")
     created_.short_description = "Created"
 
+    def delete_queryset(self, request, queryset):
+        ix = index.open_index()
+        with AsyncWriter(ix) as writer:
+            for o in queryset:
+                index.remove_document(writer, o)
+        super(DocumentAdmin, self).delete_queryset(request, queryset)
+
+    def delete_model(self, request, obj):
+        index.remove_document_from_index(obj)
+        super(DocumentAdmin, self).delete_model(request, obj)
+
+    def save_model(self, request, obj, form, change):
+        index.add_or_update_document(obj)
+        super(DocumentAdmin, self).save_model(request, obj, form, change)
+
     @mark_safe
     def tags_(self, obj):
         r = ""

src/documents/apps.py

@@ -18,7 +18,8 @@ class DocumentsConfig(AppConfig):
             set_log_entry,
             set_correspondent,
             set_document_type,
-            set_tags
+            set_tags,
+            add_to_index
 
         )
 
@@ -29,6 +30,7 @@ class DocumentsConfig(AppConfig):
         document_consumption_finished.connect(set_document_type)
         document_consumption_finished.connect(set_tags)
         document_consumption_finished.connect(set_log_entry)
+        document_consumption_finished.connect(add_to_index)
         document_consumption_finished.connect(run_post_consume_script)
 
         post_delete.connect(cleanup_document_deletion)

src/documents/index.py

@@ -11,6 +11,9 @@ from documents.models import Document
 from paperless import settings
 
 
+logger = logging.getLogger(__name__)
+
+
 class JsonFormatter(Formatter):
     def __init__(self):
         self.seen = {}
@@ -68,6 +71,7 @@ def open_index(recreate=False):
 
 
 def update_document(writer, doc):
+    logger.debug("Indexing {}...".format(doc))
     writer.update_document(
         id=doc.pk,
         title=doc.title,
@@ -76,18 +80,21 @@ def update_document(writer, doc):
     )
 
 
-@receiver(models.signals.post_save, sender=Document)
-def add_document_to_index(sender, instance, **kwargs):
-    ix = open_index()
-    with AsyncWriter(ix) as writer:
-        update_document(writer, instance)
+def remove_document(writer, doc):
+    logger.debug("Removing {} from index...".format(doc))
+    writer.delete_by_term('id', doc.pk)
 
 
-@receiver(models.signals.post_delete, sender=Document)
-def remove_document_from_index(sender, instance, **kwargs):
+def add_or_update_document(document):
     ix = open_index()
     with AsyncWriter(ix) as writer:
-        writer.delete_by_term('id', instance.pk)
+        update_document(writer, document)
+
+
+def remove_document_from_index(document):
+    ix = open_index()
+    with AsyncWriter(ix) as writer:
+        remove_document(writer, document)
 
 
 def autocomplete(ix, term, limit=10):

src/documents/signals/handlers.py

@@ -166,3 +166,7 @@ def set_log_entry(sender, document=None, logging_group=None, **kwargs):
         user=user,
         object_repr=document.__str__(),
     )
+
+
+def add_to_index(sender, document, **kwargs):
+    index.add_or_update_document(document)

src/documents/views.py

@@ -99,6 +99,15 @@ class DocumentViewSet(RetrieveModelMixin,
     ordering_fields = (
         "id", "title", "correspondent__name", "document_type__name", "created", "modified", "added", "archive_serial_number")
 
+    def update(self, request, *args, **kwargs):
+        response = super(DocumentViewSet, self).update(request, *args, **kwargs)
+        index.add_or_update_document(self.get_object())
+        return response
+
+    def destroy(self, request, *args, **kwargs):
+        index.remove_document_from_index(self.get_object())
+        return super(DocumentViewSet, self).destroy(request, *args, **kwargs)
+
     def file_response(self, pk, disposition):
         #TODO: this should not be necessary here.
         content_types = {