fix(resource_version): fix diff

src/dashboard/apigateway/apigateway/apis/web/resource_version/views.py

@@ -233,9 +233,11 @@ def get(self, request, *args, **kwargs):
         source_resource_version_id = data.get("source_resource_version_id")
         target_resource_version_id = data.get("target_resource_version_id")
 
+        version = ResourceVersionHandler.get_latest_version_by_gateway(request.gateway.id)
+
         source_resource_data = []
-        # 如果 source_resource_version_id 和  target_resource_version_id 都不为空，则 source_resource_data数据不为空
-        if source_resource_version_id and target_resource_version_id:
+        # 如果 source_resource_version_id不为空，并且不是第一次生成版本
+        if source_resource_version_id and version != "":
             source_resource_data = ResourceVersionHandler.get_data_by_id_or_new(
                 request.gateway, source_resource_version_id
             )

src/dashboard/apigateway/apigateway/tests/apis/web/resource_version/test_views.py

@@ -229,14 +229,13 @@ def test_get(self, request_view):
 
 
 class TestResourceVersionDiffApi:
-    def test_resource_version_diff(
+    def test_resource_version_diff_without_resource_version(
         self,
         request_view,
         fake_backend,
         fake_stage,
         fake_gateway,
         fake_resource,
-        fake_resource_version_v2,
         echo_plugin_stage_binding,
     ):
         resp = request_view(
@@ -297,6 +296,34 @@ def test_resource_version_diff(
             }
         }
 
+    def test_resource_version_diff_with_resource_version(
+        self,
+        request_view,
+        fake_backend,
+        fake_stage,
+        fake_gateway,
+        fake_resource_version_v2,
+        echo_plugin_stage_binding,
+    ):
+        resp = request_view(
+            method="GET",
+            view_name="gateway.resource_version.diff",
+            gateway=fake_gateway,
+            path_params={
+                "gateway_id": fake_gateway.id,
+            },
+            data={"source_resource_version_id": fake_resource_version_v2.id, "target_resource_version_id": ""},
+        )
+        assert resp.status_code == 200
+        result = resp.json()
+        assert result == {
+            "data": {
+                "add": [],
+                "delete": [],
+                "update": [],
+            }
+        }
+
 
 class TestResourceVersionGetApi:
     def test_resource_version_get(self, request_view):