erp5_core: Make two queries in Base_getRelatedDocumentList

For two reasons:
- In previous version, query would lose Embedded Documents, lacking a left join in follow_up_uid
- In large instances the previous version was many times slower

Also,
erp5_dms: Add a test for Base_getRelatedDocumentList

To check it works correctly with both related (follow_up)
Documents and with sub-object Embedded Files

bt5/erp5_dms/TestTemplateItem/portal_components/test.erp5.testDms.py

@@ -2896,6 +2896,44 @@ return 1
     self.assertEqual('TEST-001-en.dummy', document.getStandardFilename(
                       document_format))
 
+  def test_Base_getRelatedDocumentList(self):
+    """
+      Checks Base_getRelatedDocumentList works correctly with both
+      related (follow_up) Documents and with sub-object Embedded Files
+    """
+    uploaded_file = makeFileUpload('TEST-001-en.dummy')
+    document_value = self.portal.Base_contribute(
+      file=uploaded_file,
+      synchronous_metadata_discovery=True,
+      portal_type='File'
+    )
+    person_value = self.portal.person_module.newContent(portal_type='Person')
+    getRelatedDocumentList = person_value.Base_getRelatedDocumentList
+    self.tic()
+    # No related document
+    self.assertEqual(len(getRelatedDocumentList()), 0)
+    document_value.setFollowUpValue(person_value)
+    self.tic()
+    # Only related follow_up File
+    self.assertEqual(
+      [brain.getObject() for brain in getRelatedDocumentList()],
+      [document_value]
+    )
+    sub_document_value = person_value.newContent(portal_type='Embedded File')
+    self.tic()
+    # Related follow_up File and Embedded File
+    self.assertEqual(
+      sorted([brain.getObject() for brain in getRelatedDocumentList()]),
+      sorted([sub_document_value, document_value])
+    )
+    document_value.setFollowUpValue(None)
+    self.tic()
+    # Only related Embedded File
+    self.assertEqual(
+      [brain.getObject() for brain in getRelatedDocumentList()],
+      [sub_document_value]
+    )
+
 class TestDocumentWithSecurity(TestDocumentMixin):
 
   username = 'yusei'

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_getRelatedDocumentList.py

@@ -7,12 +7,20 @@ portal_catalog = portal.portal_catalog
 
 if portal_type is None:
   portal_type = portal.getPortalDocumentTypeList() + portal.getPortalEmbeddedDocumentTypeList()
-
-document_query = ComplexQuery(
-  Query(follow_up_uid=context.getUid()),
+limit = kw.pop('limit', None)
+follow_up_related_document_list = portal_catalog(
+   portal_type=portal_type,
+   follow_up_uid=context.getUid(),
+  **kw
+)
+if follow_up_related_document_list:
+  document_query = ComplexQuery(
     Query(relative_url='%s/%%' % context.getRelativeUrl().replace('_', r'\_')),
+    Query(uid=[x.getUid() for x in follow_up_related_document_list]),
     logical_operator='or'
-)
+  )
+else:
+  document_query = Query(relative_url='%s/%%' % context.getRelativeUrl().replace('_', r'\_'))
 if query is None:
   query = document_query
 else:
@@ -25,4 +33,5 @@ else:
 return portal_catalog(
   portal_type=portal_type,
   query=query,
+  limit=limit,
   **kw)