Only search pages for documents not in trash

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/documents/search.py

@@ -1,5 +1,6 @@
 from __future__ import absolute_import, unicode_literals
 
+from django.apps import apps
 from django.utils.translation import ugettext_lazy as _
 
 from mayan.apps.common.literals import LIST_MODE_CHOICE_ITEM
@@ -12,6 +13,14 @@ def format_uuid(term_string):
     return term_string.replace('-', '')
 
 
+def get_queryset_page_search_queryset():
+    # Ignore documents in trash can
+    DocumentPage = apps.get_model(
+        app_label='documents', model_name='DocumentPage'
+    )
+    return DocumentPage.objects.filter(document_version__document__in_trash=False)
+
+
 document_search = SearchModel(
     app_label='documents', list_mode=LIST_MODE_CHOICE_ITEM,
     model_name='Document', permission=permission_document_view,
@@ -36,6 +45,7 @@ document_search.add_model_field(
 document_page_search = SearchModel(
     app_label='documents', list_mode=LIST_MODE_CHOICE_ITEM,
     model_name='DocumentPage', permission=permission_document_view,
+    queryset=get_queryset_page_search_queryset,
     serializer_path='mayan.apps.documents.serializers.DocumentPageSerializer'
 )