Add blog post redirects

blog/migrations/0003_auto_20210228_0052.py

@@ -0,0 +1,26 @@
+# Generated by Django 3.1.7 on 2021-02-27 23:52
+
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wagtailcore', '0060_fix_workflow_unique_constraint'),
+        ('blog', '0002_auto_20200528_1605'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='post',
+            name='redirect_to',
+            field=models.ForeignKey(blank=True, help_text='Redirect to a specified page instead of showing content. You should still add content or description to show in previews.', null=True, on_delete=django.db.models.deletion.PROTECT, related_name='+', to='wagtailcore.page', verbose_name='redirect to page'),
+        ),
+        migrations.AlterField(
+            model_name='post',
+            name='date',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='post date'),
+        ),
+    ]

blog/models.py

@@ -1,8 +1,8 @@
-from datetime import datetime
-
 from django.db import models
+from django.shortcuts import redirect
+from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
-from wagtail.admin.edit_handlers import FieldPanel
+from wagtail.admin.edit_handlers import FieldPanel, PageChooserPanel
 from wagtail.core.fields import RichTextField
 from wagtail.core.models import Page
 
@@ -32,16 +32,37 @@ class Meta:
 class Post(SFIPage):
     content = RichTextField(verbose_name=_('content'))
 
-    date = models.DateTimeField(default=datetime.now, verbose_name=_('post date'))
+    date = models.DateTimeField(default=timezone.now, verbose_name=_('post date'))
+
+    redirect_to = models.ForeignKey(
+        "wagtailcore.Page",
+        null=True,
+        blank=True,
+        related_name="+",
+        on_delete=models.PROTECT,
+        verbose_name=_('redirect to page'),
+        help_text=_(
+            'Redirect to a specified page instead of showing content. '
+            'You should still add content or description to show in previews.')
+    )
 
     content_panels = SFIPage.content_panels + [
         FieldPanel('date'),
         FieldPanel('content'),
     ]
 
+    settings_panels = SFIPage.settings_panels + [
+        PageChooserPanel('redirect_to'),
+    ]
+
     parent_page_types = ['PostIndex']
     subpage_types = []
 
+    def serve(self, request, *args, **kwargs):
+        if self.redirect_to:
+            return redirect(self.redirect_to.url)
+        return super().serve(request, *args, **kwargs)
+
     class Meta:
         verbose_name = _('post')
         verbose_name_plural = _('posts')