Fixed #12990, Refs #27694 -- Added JSONField model field.

Thanks to Adam Johnson, Carlton Gibson, Mariusz Felisiak, and Raphael
Michel for mentoring this Google Summer of Code 2019 project and
everyone else who helped with the patch.

Special thanks to Mads Jensen, Nick Pope, and Simon Charette for
extensive reviews.

Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>

2 files changed, 20 insertions, 0 deletions

diff --git a/tests/inspectdb/models.py b/tests/inspectdb/models.py
index 8a48031b24..d0076ce94f 100644
--- a/tests/inspectdb/models.py
+++ b/tests/inspectdb/models.py
@@ -68,6 +68,17 @@ class ColumnTypes(models.Model):
     uuid_field = models.UUIDField()
 
 
+class JSONFieldColumnType(models.Model):
+    json_field = models.JSONField()
+    null_json_field = models.JSONField(blank=True, null=True)
+
+    class Meta:
+        required_db_features = {
+            'can_introspect_json_field',
+            'supports_json_field',
+        }
+
+
 class UniqueTogether(models.Model):
     field1 = models.IntegerField()
     field2 = models.CharField(max_length=10)
diff --git a/tests/inspectdb/tests.py b/tests/inspectdb/tests.py
index 6e3f4b8aa6..afe89e0dda 100644
--- a/tests/inspectdb/tests.py
+++ b/tests/inspectdb/tests.py
@@ -85,6 +85,15 @@ class InspectDBTestCase(TestCase):
         elif not connection.features.interprets_empty_strings_as_nulls:
             assertFieldType('uuid_field', "models.CharField(max_length=32)")
 
+    @skipUnlessDBFeature('can_introspect_json_field', 'supports_json_field')
+    def test_json_field(self):
+        out = StringIO()
+        call_command('inspectdb', 'inspectdb_jsonfieldcolumntype', stdout=out)
+        output = out.getvalue()
+        if not connection.features.interprets_empty_strings_as_nulls:
+            self.assertIn('json_field = models.JSONField()', output)
+        self.assertIn('null_json_field = models.JSONField(blank=True, null=True)', output)
+
     def test_number_field_types(self):
         """Test introspection of various Django field types"""
         assertFieldType = self.make_field_type_asserter()