Add field 'added' to documents

This field indicates when the document was added to the database

src/documents/admin.py

@@ -125,7 +125,9 @@ class DocumentAdmin(CommonAdmin):
         }
 
     search_fields = ("correspondent__name", "title", "content", "tags__name")
-    list_display = ("title", "created", "thumbnail", "correspondent", "tags_")
+    readonly_fields = ("added",)
+    list_display = ("title", "created", "added", "thumbnail", "correspondent",
+                    "tags_")
     list_filter = ("tags", "correspondent", FinancialYearFilter,
                    MonthListFilter)
 

src/documents/migrations/0020_document_added.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+def set_added_time_to_created_time(apps, schema_editor):
+    Document = apps.get_model("documents", "Document")
+    for doc in Document.objects.all():
+        doc.added = doc.created
+        doc.save()
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('documents', '0019_add_consumer_user'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='document',
+            name='added',
+            field=models.DateTimeField(db_index=True, default=django.utils.timezone.now, editable=False),
+        ),
+        migrations.RunPython(set_added_time_to_created_time)
+    ]

src/documents/models.py

@@ -229,6 +229,8 @@ class Document(models.Model):
         default=timezone.now, db_index=True)
     modified = models.DateTimeField(
         auto_now=True, editable=False, db_index=True)
+    added = models.DateTimeField(
+        default=timezone.now, editable=False, db_index=True)
 
     class Meta(object):
         ordering = ("correspondent", "title")

src/documents/templates/admin/documents/document/change_list_results.html

@@ -129,24 +129,25 @@
     {# 0: Checkbox #}
     {# 1: Title #}
     {# 2: Date #}
-    {# 3: Image #}
+    {# 3: Added #}
-    {# 4: Correspondent #}
+    {# 4: Image #}
-    {# 5: Tags #}
+    {# 5: Correspondent #}
-    {# 6: Document edit url #}
+    {# 6: Tags #}
+    {# 7: Document edit url #}
     <div class="box">
       <div class="result">
-        <div class="header" onclick="location.href='{{ result.6 }}';" style="cursor: pointer;">
+        <div class="header" onclick="location.href='{{ result.7 }}';" style="cursor: pointer;">
           <div class="checkbox">{{ result.0 }}</div>
           <div class="info">
-            {{ result.4 }}<br />
+            {{ result.5 }}<br />
             {{ result.1 }}
           </div>
           <div style="clear: both;"></div>
         </div>
-        <div class="tags">{{ result.5 }}</div>
+        <div class="tags">{{ result.6 }}</div>
         <div class="date">{{ result.2 }}</div>
         <div style="clear: both;"></div>
-        <div class="image">{{ result.3 }}</div>
+        <div class="image">{{ result.4 }}</div>
       </div>
     </div>
   {% endfor %}