fix: improve code

packages/core/flow-engine/src/resources/apiResource.ts

@@ -85,7 +85,7 @@ export class APIResource<TData = any> extends FlowResource<TData> {
       url: this.getURL(),
       ...this.getRefreshRequestOptions(),
     });
-    this.setData(data?.data);
+    this.setData(data);
   }
 
   protected getRefreshRequestOptions() {

packages/plugins/@nocobase/plugin-block-lowcode/src/client/CodeEditor.tsx

@@ -7,40 +7,54 @@
  * For more information, please refer to: https://www.nocobase.com/agreement.
  */
 
-import React, { useRef, useEffect } from 'react';
 import { connect, mapProps } from '@formily/react';
+import React, { useEffect, useRef } from 'react';
 
 // CodeMirror imports
-import { EditorView, basicSetup } from 'codemirror';
-import { javascript } from '@codemirror/lang-javascript';
-import { oneDark } from '@codemirror/theme-one-dark';
-import { EditorState } from '@codemirror/state';
 import { autocompletion, CompletionContext, CompletionResult } from '@codemirror/autocomplete';
+import { javascript } from '@codemirror/lang-javascript';
 import { lintGutter } from '@codemirror/lint';
+import { EditorState } from '@codemirror/state';
+import { oneDark } from '@codemirror/theme-one-dark';
+import { basicSetup, EditorView } from 'codemirror';
 import { createJavaScriptLinter } from './linter';
 
 // 自定义自动补全函数
 const createCustomCompletion = () => {
   const contextVariables = [
+    {
+      label: 'getModelById',
+      type: 'function',
+      info: 'Get a model instance by its UID',
+      detail: '(uid: string) => FlowModel | null',
+      boost: 101,
+    },
     {
       label: 'element',
       type: 'variable',
       info: 'The DOM element to render into',
       detail: 'HTMLElement',
-      boost: 99,
+      boost: 100,
     },
     {
       label: 'ctx',
       type: 'variable',
       info: 'Flow context object',
       detail: 'FlowContext',
-      boost: 98,
+      boost: 99,
     },
     {
       label: 'model',
       type: 'variable',
       info: 'Current model instance',
       detail: 'FlowModel',
+      boost: 98,
+    },
+    {
+      label: 'resource',
+      type: 'variable',
+      info: 'Current resource instance',
+      detail: 'APIResource',
       boost: 97,
     },
     {

packages/plugins/@nocobase/plugin-block-lowcode/src/client/LowcodeBlockFlowModel.tsx

@@ -9,7 +9,7 @@
 
 import { BlockModel } from '@nocobase/client';
 import { APIResource } from '@nocobase/flow-engine';
-import { Card, Spin } from 'antd';
+import { Card, Skeleton, Spin } from 'antd';
 import React, { createRef } from 'react';
 import { CodeEditor } from './CodeEditor';
 
@@ -30,13 +30,9 @@ export class LowcodeBlockFlowModel extends BlockModel {
 
     return (
       <Card>
-        {loading && (
-          <div style={{ textAlign: 'center', padding: '20px' }}>
-            <Spin />
-            <div style={{ marginTop: '8px' }}>Loading lowcode component...</div>
-          </div>
-        )}
-        <div ref={this.ref} style={{ width: '100%' }} />
+        <Spin spinning={loading} tip="Loading lowcode component...">
+          <div ref={this.ref} style={{ width: '100%' }} />
+        </Spin>
       </Card>
     );
   }
@@ -98,6 +94,9 @@ LowcodeBlockFlowModel.registerFlow({
   steps: {
     setMainResource: {
       handler(ctx) {
+        if (ctx.model.resource) {
+          return;
+        }
         ctx.model.resource = new APIResource();
         ctx.model.resource.setAPIClient(ctx.globals.api);
       },
@@ -199,17 +198,30 @@ element.innerHTML = \`
               });
             };
 
+            const getModelById = (uid: string) => {
+              return ctx.globals.flowEngine.getModel(uid);
+            };
+
             // Create a safe execution context for the code (as async function)
             // Wrap user code in an async function
             const wrappedCode = `
-              return (async function(element, ctx, model, requirejs, requireAsync, loadCSS) {
+              return (async function(element, ctx, model, resource, requirejs, requireAsync, loadCSS, getModelById) {
                 ${params.code}
               }).apply(this, arguments);
             `;
             const executionFunction = new Function(wrappedCode);
 
             // Execute the code
-            await executionFunction(element, ctx, ctx.model, requirejs, requireAsync, loadCSS);
+            await executionFunction(
+              element,
+              ctx,
+              ctx.model,
+              ctx.model.resource,
+              requirejs,
+              requireAsync,
+              loadCSS,
+              getModelById,
+            );
 
             ctx.model.setProps('loading', false);
           } catch (error: any) {