Create a sample document index after the initial setup. GitLab issue #275.

mayan/apps/document_indexing/apps.py

@@ -15,6 +15,7 @@ from common import (
     menu_setup, menu_tools
 )
 from common.classes import Package
+from common.signals import post_initial_setup
 from common.widgets import two_state_template
 from documents.signals import post_document_created
 from mayan.celery import app
@@ -22,8 +23,9 @@ from navigation import SourceColumn
 from rest_api.classes import APIEndPoint
 
 from .handlers import (
-    document_created_index_update, document_index_delete,
-    document_metadata_index_update, document_metadata_index_post_delete
+    document_created_index_update, create_default_document_index,
+    document_index_delete, document_metadata_index_update,
+    document_metadata_index_post_delete
 )
 from .links import (
     link_document_index_list, link_index_main_menu, link_index_setup,
@@ -232,6 +234,10 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
             document_created_index_update,
             dispatch_uid='document_created_index_update', sender=Document
         )
+        post_initial_setup.connect(
+            create_default_document_index,
+            dispatch_uid='create_default_document_index'
+        )
         post_save.connect(
             document_metadata_index_update,
             dispatch_uid='document_metadata_index_update',

mayan/apps/document_indexing/handlers.py

@@ -1,8 +1,38 @@
 from __future__ import unicode_literals
 
+from django.apps import apps
+from django.utils.translation import ugettext_lazy as _
+
 from .tasks import task_delete_empty_index_nodes, task_index_document
 
 
+def create_default_document_index(sender, **kwargs):
+    DocumentType = apps.get_model(
+        app_label='documents', model_name='DocumentType'
+    )
+    Index = apps.get_model(
+        app_label='document_indexing', model_name='Index'
+    )
+
+    if not Index.objects.count():
+        index = Index.objects.create(
+            label=_('Creation date'), slug='creation_date'
+        )
+        for document_type in DocumentType.objects.all():
+            index.document_types.add(document_type)
+
+        root_template_node = index.template_root
+        node = root_template_node.get_children().create(
+            expression='{{ document.date_added|date:"Y" }}', index=index,
+            parent=root_template_node
+        )
+        node.get_children().create(
+            expression='{{ document.date_added|date:"m" }}',
+            index=index, link_documents=True, parent=node
+        )
+
+
+
 def document_created_index_update(sender, **kwargs):
     task_index_document.apply_async(
         kwargs=dict(document_id=kwargs['instance'].pk)