51 lines
1007 B
TypeScript
51 lines
1007 B
TypeScript
|
/*
|
||
|
|
# 树结构设计 —— 闭包表
|
||
|
|
|
||
|
|
yarn run:example database/collections/tree/closure-table
|
||
|
|
*/
|
||
|
|
import { Database } from '@nocobase/database';
|
||
|
|
import { uid } from '@nocobase/utils';
|
||
|
|
|
||
|
|
const db = new Database({
|
||
|
|
logging: process.env.DB_LOGGING === 'on' ? console.log : false,
|
||
|
|
dialect: process.env.DB_DIALECT as any,
|
||
|
|
storage: process.env.DB_STORAGE,
|
||
|
|
username: process.env.DB_USER,
|
||
|
|
password: process.env.DB_PASSWORD,
|
||
|
|
database: process.env.DB_DATABASE,
|
||
|
|
host: process.env.DB_HOST,
|
||
|
|
port: process.env.DB_PORT as any,
|
||
|
|
timezone: process.env.DB_TIMEZONE,
|
||
|
|
tablePrefix: `t_${uid()}_`,
|
||
|
|
});
|
||
|
|
|
||
|
|
db.collection({
|
||
|
|
name: 'categories',
|
||
|
|
tree: 'closure-table',
|
||
|
|
fields: [
|
||
|
|
{
|
||
|
|
type: 'string',
|
||
|
|
name: 'name',
|
||
|
|
},
|
||
|
|
{
|
||
|
|
type: 'string',
|
||
|
|
name: 'description',
|
||
|
|
},
|
||
|
|
{
|
||
|
|
type: 'treeParent',
|
||
|
|
name: 'parent',
|
||
|
|
},
|
||
|
|
{
|
||
|
|
type: 'treeChildren',
|
||
|
|
name: 'children',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
});
|
||
|
|
|
||
|
|
(async () => {
|
||
|
|
await db.sync();
|
||
|
|
await db.close();
|
||
|
|
})();
|
||
|
|
|
||
|
|
export default db;
|