feat(plugin-workflow): support context variables from model trigger (#284)

packages/client/src/workflow/WorkflowCanvas.tsx

@@ -40,7 +40,7 @@ export function WorkflowCanvas() {
     return <div>加载失败</div>;
   }
 
-  const { nodes = [] } = data?.data ?? {};
+  const { nodes = [], ...workflow } = data?.data ?? {};
 
   makeNodes(nodes);
 
@@ -48,6 +48,7 @@ export function WorkflowCanvas() {
 
   return (
     <FlowContext.Provider value={{
+      workflow,
       nodes,
       onNodeAdded: refresh,
       onNodeRemoved: refresh

packages/client/src/workflow/calculators.tsx

@@ -4,6 +4,7 @@ import { css } from "@emotion/css";
 
 import { instructions, useNodeContext } from "./nodes";
 import { useFlowContext } from "./WorkflowCanvas";
+import { triggers } from "./triggers";
 
 function NullRender() {
   return null;
@@ -68,6 +69,8 @@ export function parseStringValue(value: string, Types) {
   };
 }
 
+export const BaseTypeSet = new Set(['boolean', 'number', 'string', 'date']);
+
 const ConstantTypes = {
   string: {
     title: '字符串',
@@ -189,7 +192,25 @@ export const VariableTypes = {
       return `{{${stack.join('.')}}}`;
     }
   },
-  // context: ContextSelect,
+  context: {
+    title: '触发数据',
+    value: 'context',
+    component() {
+      const { workflow } = useFlowContext();
+      const trigger = triggers.get(workflow.type);
+      return trigger?.getter ?? NullRender;
+    },
+    parse([prefix, ...path]) {
+      return { path: path.join('.') };
+    },
+    stringify({ options }) {
+      const stack = ['context'];
+      if (options?.path) {
+        stack.push(options.path);
+      }
+      return `{{${stack.join('.')}}}`;
+    }
+  },
   // calculation: Calculation
 };
 
@@ -205,10 +226,15 @@ interface OperandProps {
     value?: any;
     options?: any;
   };
-  onChange(v: any): void
+  onChange(v: any): void;
+  children?: React.ReactNode;
 }
 
-export function Operand({ onChange, value: operand = { type: 'constant', value: '', options: { type: 'string' } } }: OperandProps) {
+export function Operand({
+  value: operand = { type: 'constant', value: '', options: { type: 'string' } },
+  onChange,
+  children
+}: OperandProps) {
   const Types = useVariableTypes();
 
   const { type } = operand;
@@ -226,13 +252,13 @@ export function Operand({ onChange, value: operand = { type: 'constant', value:
         allowClear={false}
         value={[type, ...(appendTypeValue ? appendTypeValue(operand) : [])]}
         options={Object.values(Types).map((item: any) => {
-          const children = typeof item.options === 'function' ? item.options() : item.options;
+          const options = typeof item.options === 'function' ? item.options() : item.options;
           return {
             label: item.title,
             value: item.value,
-            children,
-            disabled: children && !children.length,
-            isLeaf: !children
+            children: options,
+            disabled: options && !options.length,
+            isLeaf: !options
           };
         })}
         onChange={(next: Array<string | number>) => {
@@ -246,7 +272,7 @@ export function Operand({ onChange, value: operand = { type: 'constant', value:
           }
         }}
       />
-      <VariableComponent {...operand} onChange={op => onChange({ ...op })} />
+      {children ?? <VariableComponent {...operand} onChange={op => onChange({ ...op })} />}
     </div>
   );
 }

packages/client/src/workflow/nodes/condition.tsx

@@ -161,7 +161,7 @@ export default {
     { label: '分支模式', key: 'branch', value: { rejectOnFalse: false } }
   ],
   render(data) {
-    const { id, config: { calculation, rejectOnFalse } } = data;
+    const { id, config: { rejectOnFalse } } = data;
     const { nodes } = useFlowContext();
     const trueEntry = nodes.find(item => item.upstreamId === id && item.branchIndex === 1);
     const falseEntry = nodes.find(item => item.upstreamId === id && item.branchIndex === 0);

packages/client/src/workflow/nodes/query.tsx

@@ -8,9 +8,7 @@ import { css } from '@emotion/css';
 import { useCollectionManager } from '../..';
 import { useCollectionFilterOptions } from '../../collection-manager/action-hooks';
 import { useFlowContext } from '../WorkflowCanvas';
-import { Operand, parseStringValue, VariableTypes, VariableTypesContext } from '../calculators';
-
-const BaseTypeSet = new Set(['boolean', 'number', 'string', 'date']);
+import { Operand, parseStringValue, VariableTypes, VariableTypesContext, BaseTypeSet } from '../calculators';
 
 export default {
   title: '数据查询',
@@ -89,10 +87,7 @@ export default {
         constant: {
           title: '常量',
           value: 'constant',
-          options: undefined,
-          component() {
-            return renderSchemaComponent;
-          }
+          options: undefined
         }
       };
 
@@ -112,7 +107,9 @@ export default {
                 onChange(stringify(next));
               }
             }}
-          />
+          >
+            {operand.type === 'constant' ? renderSchemaComponent() : null}
+          </Operand>
         </VariableTypesContext.Provider>
       );
     }

packages/client/src/workflow/triggers/index.tsx

@@ -1,6 +1,7 @@
 import React from "react";
-import { useForm } from "@formily/react";
+import { ISchema, useForm } from "@formily/react";
 import { cx } from "@emotion/css";
+import { Registry } from "@nocobase/utils";
 
 import { SchemaComponent, useActionContext, useAPIClient, useRecord, useResourceActionContext } from '../../';
 import model from './model';
@@ -30,18 +31,30 @@ function useUpdateConfigAction() {
   };
 };
 
-
-const triggerTypes = {
-  model
+export interface Trigger {
+  title: string;
+  type: string;
+  // group: string;
+  options?: { label: string; value: any; key: string }[];
+  fieldset: { [key: string]: ISchema };
+  view?: ISchema;
+  scope?: { [key: string]: any };
+  components?: { [key: string]: any };
+  render?(props): React.ReactElement;
+  getter?(node: any): React.ReactElement;
 };
 
+export const triggers = new Registry<Trigger>();
+
+triggers.register('model', model);
+
 export const TriggerConfig = () => {
   const { data } = useResourceActionContext();
   if (!data) {
     return null;
   }
   const { type, config } = data.data;
-  const { title, fieldset, scope } = triggerTypes[type];
+  const { title, fieldset, scope } = triggers.get(type);
   return (
     <div className={cx(nodeCardClass)}>
       <h4>{title}</h4>

packages/client/src/workflow/triggers/model.tsx

@@ -1,9 +1,15 @@
+import React from 'react';
 import { action } from '@formily/reactive';
 import { t } from 'i18next';
+import { Select } from 'antd';
+
 import { useCollectionManager } from '../../collection-manager';
+import { useFlowContext } from '../WorkflowCanvas';
+import { BaseTypeSet } from '../calculators';
 
 export default {
   title: '数据表事件',
+  type: 'model',
   fieldset: {
     collection: {
       type: 'string',
@@ -32,5 +38,22 @@ export default {
         })(collections);
       }
     }
+  },
+  getter({ type, options, onChange }) {
+    const { collections = [] } = useCollectionManager();
+    const { workflow } = useFlowContext();
+    const collection = collections.find(item => item.name === workflow.config.collection) ?? { fields: [] };
+
+    return (
+      <Select value={options.path} placeholder="选择字段" onChange={path => {
+        onChange({ type, options: { ...options, path: `data.${path}` } });
+      }}>
+        {collection.fields
+          .filter(field => BaseTypeSet.has(field.uiSchema.type))
+          .map(field => (
+          <Select.Option key={field.name} value={field.name}>{t(field.uiSchema.title)}</Select.Option>
+        ))}
+      </Select>
+    );
   }
 };