Example of category, backward compatibility.

examples/Multi-output demo.lynxkite.json

@@ -25,6 +25,9 @@
         "error": null,
         "input_metadata": [],
         "meta": {
+          "categories": [
+            "examples"
+          ],
           "color": "orange",
           "doc": [
             {
@@ -57,6 +60,7 @@
               ]
             }
           ],
+          "id": "examples > Multi-output example",
           "inputs": [],
           "name": "Multi-output example",
           "outputs": [
@@ -93,6 +97,7 @@
           ],
           "type": "basic"
         },
+        "op_id": "examples > Multi-output example",
         "params": {
           "a_limit": "2",
           "b_limit": "10"
@@ -100,7 +105,7 @@
         "status": "done",
         "title": "Multi-output example"
       },
-      "dragHandle": ".bg-primary",
+      "dragHandle": ".drag-handle",
       "height": 275.0,
       "id": "Multi-output example 1",
       "position": {
@@ -146,8 +151,10 @@
           }
         ],
         "meta": {
+          "categories": [],
           "color": "orange",
           "doc": null,
+          "id": "View tables",
           "inputs": [
             {
               "name": "bundle",
@@ -170,13 +177,14 @@
           ],
           "type": "table_view"
         },
+        "op_id": "View tables",
         "params": {
           "limit": 100.0
         },
         "status": "done",
         "title": "View tables"
       },
-      "dragHandle": ".bg-primary",
+      "dragHandle": ".drag-handle",
       "height": 200.0,
       "id": "View tables 1",
       "position": {
@@ -246,8 +254,10 @@
           }
         ],
         "meta": {
+          "categories": [],
           "color": "orange",
           "doc": null,
+          "id": "View tables",
           "inputs": [
             {
               "name": "bundle",
@@ -270,13 +280,14 @@
           ],
           "type": "table_view"
         },
+        "op_id": "View tables",
         "params": {
           "limit": 100.0
         },
         "status": "done",
         "title": "View tables"
       },
-      "dragHandle": ".bg-primary",
+      "dragHandle": ".drag-handle",
       "height": 215.0,
       "id": "View tables 2",
       "position": {

examples/multi_output_demo.py

@@ -2,7 +2,7 @@ from lynxkite.core.ops import op
 import pandas as pd
 
 
-@op("LynxKite Graph Analytics", "Multi-output example", outputs=["one", "two"])
+@op("LynxKite Graph Analytics", "examples", "Multi-output example", outputs=["one", "two"])
 def multi_output(*, a_limit=4, b_limit=10):
     """
     Returns two outputs. Also demonstrates Numpy-style docstrings.

lynxkite-core/src/lynxkite/core/workspace.py

@@ -39,6 +39,14 @@ class WorkspaceNodeData(BaseConfig):
     # Also contains a "meta" field when going out.
     # This is ignored when coming back from the frontend.
 
+    @pydantic.model_validator(mode="before")
+    @classmethod
+    def fill_op_id_if_missing(cls, data: dict) -> dict:
+        """Compatibility with old workspaces that don't have op_id."""
+        if "op_id" not in data:
+            data["op_id"] = data["title"]
+        return data
+
 
 class WorkspaceNode(BaseConfig):
     # Most of these fields are shared with ReactFlow.