From b7bfc03a5d34075cb4c2d8fd88d4077d862cce75 Mon Sep 17 00:00:00 2001
From: Eric Holscher <eric@ericholscher.com>
Date: Tue, 2 Jun 2020 14:16:19 -0700
Subject: [PATCH] Allow `blank=True` for URLConf
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This was causing issues in the admin where we couldn’t save the Project because it was blank.
---
 .../projects/migrations/0054_urlconf_blank.py  | 18 ++++++++++++++++++
 readthedocs/projects/models.py                 |  1 +
 2 files changed, 19 insertions(+)
 create mode 100644 readthedocs/projects/migrations/0054_urlconf_blank.py

diff --git a/readthedocs/projects/migrations/0054_urlconf_blank.py b/readthedocs/projects/migrations/0054_urlconf_blank.py
new file mode 100644
index 00000000000..90caf4f33ba
--- /dev/null
+++ b/readthedocs/projects/migrations/0054_urlconf_blank.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.2.10 on 2020-06-02 21:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('projects', '0053_make_external_builds_field_not_null'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='project',
+            name='urlconf',
+            field=models.CharField(blank=True, default=None, help_text='Supports the following keys: $language, $version, $subproject, $filename. An example: `$language/$version/$filename`.', max_length=255, null=True, verbose_name='Documentation URL Configuration'),
+        ),
+    ]
diff --git a/readthedocs/projects/models.py b/readthedocs/projects/models.py
index 0aa4cb309f7..ed5c1163bbd 100644
--- a/readthedocs/projects/models.py
+++ b/readthedocs/projects/models.py
@@ -208,6 +208,7 @@ class Project(models.Model):
         _('Documentation URL Configuration'),
         max_length=255,
         default=None,
+        blank=True,
         null=True,
         help_text=_(
             'Supports the following keys: $language, $version, $subproject, $filename. '