erp5_json_rpc_api: return a default success content

master/bt5/erp5_json_rpc_api/DocumentTemplateItem/portal_components/document.erp5.JsonRpcAPIService.py

@@ -353,7 +353,11 @@ class JsonRpcAPIService(OpenAPIService):
       raise JsonRpcAPIInvalidJsonDictContent(str(e))
     response = request.RESPONSE
     # XXX Hardcoded JSONForm behaviour
-    if result == "Nothing to do":
-      result = {}
+    if (result == "Nothing to do") or (not result):
+      result = {
+        'status': 200,
+        'type': 'success-type',
+        'title': 'query completed'
+      }
     response.setHeader("Content-Type", "application/json")
     return json.dumps(result).encode()

master/bt5/erp5_json_rpc_api/TestTemplateItem/portal_components/test.erp5.testJsonRpcAPIService.py

@@ -773,7 +773,14 @@ class TestJsonRpcAPIJsonFormHandling(JsonRpcAPITestCase):
       env={'CONTENT_TYPE': 'application/json'})
     self.assertEqual(response.getStatus(), 200)
     self.assertEqual(response.getHeader('content-type'), 'application/json')
-    self.assertEqual(json.loads(response.getBody()), {})
+    self.assertEqual(
+      response.getBody(),
+      json.dumps(
+        {
+          'type': 'success-type',
+          'title': "query completed",
+          'status': 200
+        }).encode())
 
   def test_jsonFormHandling_noInputSchemaAndBodyContent(self):
     self.addJSONForm(
@@ -790,8 +797,13 @@ class TestJsonRpcAPIJsonFormHandling(JsonRpcAPITestCase):
     self.assertEqual(response.getStatus(), 200)
     self.assertEqual(response.getHeader('content-type'), 'application/json')
     self.assertEqual(
-      json.loads(response.getBody()), {
-      })
+      response.getBody(),
+      json.dumps(
+        {
+          'type': 'success-type',
+          'title': "query completed",
+          'status': 200
+        }).encode())
 
   def test_jsonFormHandling_invalidBodyContent(self):
     self.addJSONForm(