2 files changed, 37 insertions, 0 deletions
diff --git a/ishtar_common/migrations/0083_document_index_external_id.py b/ishtar_common/migrations/0083_document_index_external_id.py
new file mode 100644
index 000000000..9d339b20e
--- /dev/null
+++ b/ishtar_common/migrations/0083_document_index_external_id.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.10 on 2019-01-18 17:51
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+def gen_index(apps, schema_editor):
+    from ishtar_common.models import Document
+    for doc in Document.objects.all():
+        doc.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ishtar_common', '0082_auto_20190118_1203'),
+    ]
+
+    operations = [
+        migrations.RunPython(gen_index)
+    ]
diff --git a/ishtar_common/models.py b/ishtar_common/models.py
index 4078b5840..769013fa2 100644
--- a/ishtar_common/models.py
+++ b/ishtar_common/models.py
@@ -3762,6 +3762,7 @@ post_delete.connect(post_save_cache, sender=LicenseType)
 
 
 class Document(BaseHistorizedItem, OwnPerms, ImageModel):
+    EXTERNAL_ID_KEY = 'document_external_id'
     # order is important: put the image in the first match found
     # other will be symbolic links
     RELATED_MODELS = [
@@ -4146,9 +4147,23 @@ class Document(BaseHistorizedItem, OwnPerms, ImageModel):
     def _generate_cache_related_label(self):
         return self.related_label()
 
+    def set_index(self):
+        if self.index:
+            return
+        q = Document.objects.values('index').filter(
+            index__isnull=False).order_by("-index")
+        if not q.count():
+            self.index = 1
+            return
+        cid = q.all()[0]['index']
+        if not cid:
+            cid = 0
+        self.index = cid + 1
+
     def save(self, *args, **kwargs):
         no_path_change = 'no_path_change' in kwargs \
                          and kwargs.pop('no_path_change')
+        self.set_index()
         super(Document, self).save(*args, **kwargs)
 
         if self.image and not no_path_change and \