Add future default true to Feature flags

readthedocs/projects/admin.py

@@ -366,7 +366,7 @@ class DomainAdmin(admin.ModelAdmin):
 class FeatureAdmin(admin.ModelAdmin):
     model = Feature
     form = FeatureForm
-    list_display = ('feature_id', 'project_count', 'default_true')
+    list_display = ('feature_id', 'project_count', 'default_true', 'future_default_true')
     search_fields = ('feature_id',)
     filter_horizontal = ('projects',)
     readonly_fields = ('add_date',)

readthedocs/projects/forms.py

@@ -722,7 +722,7 @@ class FeatureForm(forms.ModelForm):
 
     class Meta:
         model = Feature
-        fields = ['projects', 'feature_id', 'default_true']
+        fields = ['projects', 'feature_id', 'default_true', 'future_default_true']
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)

readthedocs/projects/migrations/0064_add_feature_future_default_true.py

@@ -0,0 +1,23 @@
+# Generated by Django 2.2.16 on 2020-10-16 14:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('projects', '0063_extend_domain_from_timestamp_model'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='feature',
+            name='future_default_true',
+            field=models.BooleanField(default=False, verbose_name='Default all future projects to True'),
+        ),
+        migrations.AlterField(
+            model_name='feature',
+            name='default_true',
+            field=models.BooleanField(default=False, verbose_name='Default all past projects to True'),
+        ),
+    ]

readthedocs/projects/models.py

@@ -1742,8 +1742,14 @@ def add_features(sender, **kwargs):
         _('Date feature was added'),
         auto_now_add=True,
     )
+    # TODO: rename this field to `past_default_true` and follow this steps when deploying
+    # https://github.com/readthedocs/readthedocs.org/pull/7524#issuecomment-703663724
     default_true = models.BooleanField(
-        _('Historical default is True'),
+        _('Default all past projects to True'),
+        default=False,
+    )
+    future_default_true = models.BooleanField(
+        _('Default all future projects to True'),
         default=False,
     )
 

readthedocs/projects/querysets.py

@@ -239,7 +239,8 @@ class FeatureQuerySet(models.QuerySet):
     def for_project(self, project):
         return self.filter(
             Q(projects=project) |
-            Q(default_true=True, add_date__gt=project.pub_date),
+            Q(default_true=True, add_date__gt=project.pub_date) |
+            Q(future_default_true=True, add_date__lt=project.pub_date)
         ).distinct()
 
 

readthedocs/rtd_tests/tests/test_project_querysets.py

@@ -259,6 +259,32 @@ def test_feature_for_project_is_implicitly_applied(self):
             ordered=False,
         )
 
+    def test_feature_future_default_true(self):
+        project = fixture.get(Project, main_language_project=None)
+        # Explicit feature
+        feature1 = fixture.get(Feature, projects=[project])
+
+        # False implicit feature
+        feature2 = fixture.get(
+            Feature,
+            projects=[],
+            add_date=project.pub_date + timedelta(days=1),
+            future_default_true=False,
+        )
+
+        # True implicit feature after add date
+        feature3 = fixture.get(
+            Feature,
+            projects=[],
+            add_date=project.pub_date - timedelta(days=1),
+            future_default_true=True,
+        )
+        self.assertQuerysetEqual(
+            Feature.objects.for_project(project),
+            [repr(feature1), repr(feature3)],
+            ordered=False,
+        )
+
     def test_feature_multiple_projects(self):
         project1 = fixture.get(Project, main_language_project=None)
         project2 = fixture.get(Project, main_language_project=None)