feat(settings): add setting to set number of suggested dates

paperless.conf.example

@@ -69,6 +69,7 @@
 #PAPERLESS_POST_CONSUME_SCRIPT=/path/to/an/arbitrary/script.sh
 #PAPERLESS_FILENAME_DATE_ORDER=YMD
 #PAPERLESS_FILENAME_PARSE_TRANSFORMS=[]
+#PAPERLESS_NUMBER_OF_SUGGESTION_DATES=5
 #PAPERLESS_THUMBNAIL_FONT_NAME=
 #PAPERLESS_IGNORE_DATES=
 #PAPERLESS_ENABLE_UPDATE_CHECK=

src/documents/views.py

@@ -337,7 +337,9 @@ class DocumentViewSet(
         classifier = load_classifier()
 
         gen = parse_date_generator(doc.filename, doc.content)
-        dates = {i for i in itertools.islice(gen, 5)}
+        dates = sorted(
+            {i for i in itertools.islice(gen, settings.NUMBER_OF_SUGGESTED_DATES)},
+        )
 
         return Response(
             {

src/paperless/settings.py

@@ -588,6 +588,11 @@ POST_CONSUME_SCRIPT = os.getenv("PAPERLESS_POST_CONSUME_SCRIPT")
 DATE_ORDER = os.getenv("PAPERLESS_DATE_ORDER", "DMY")
 FILENAME_DATE_ORDER = os.getenv("PAPERLESS_FILENAME_DATE_ORDER")
 
+# Number of dates used as suggestions in the frontend
+# The number counter from top to bottom.
+# Duplicates will be removed, which will result in less shown suggestion dates.
+NUMBER_OF_SUGGESTED_DATES = __get_int("PAPERLESS_NUMBER_OF_SUGGESTED_DATES", 0)
+
 # Transformations applied before filename parsing
 FILENAME_PARSE_TRANSFORMS = []
 for t in json.loads(os.getenv("PAPERLESS_FILENAME_PARSE_TRANSFORMS", "[]")):