Add related pages to the fund page

opentech/public/funds/migrations/0004_fundpagerelatedpage.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.8 on 2018-01-12 15:39
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import modelcluster.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wagtailcore', '0040_page_draft_title'),
+        ('public_funds', '0003_icon_and_related_pages'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='FundPageRelatedPage',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('sort_order', models.IntegerField(blank=True, editable=False, null=True)),
+                ('page', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='+', to='wagtailcore.Page')),
+                ('source_page', modelcluster.fields.ParentalKey(on_delete=django.db.models.deletion.CASCADE, related_name='related_pages', to='public_funds.FundPage')),
+            ],
+            options={
+                'ordering': ['sort_order'],
+                'abstract': False,
+            },
+        ),
+    ]

opentech/public/funds/models.py

@@ -22,6 +22,10 @@ from opentech.public.utils.models import (
 from .blocks import FundBlock
 
 
+class FundPageRelatedPage(RelatedPage):
+    source_page = ParentalKey('FundPage', related_name='related_pages')
+
+
 class FundPage(BasePage):
     subpage_types = []
     parent_page_types = ['FundIndex']
@@ -40,6 +44,7 @@ class FundPage(BasePage):
         FieldPanel('introduction'),
         PageChooserPanel('fund_type', 'funds.FundType'),
         StreamFieldPanel('body'),
+        InlinePanel('related_pages', label="Related pages"),
     ]