feat: remove auto connect use manual inject

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/db-mongo/src/client.ts

@@ -1,31 +1,15 @@
 import { DBClient } from '@cc-server/db'
-import { MongoDBConnection } from './connection'
-import { Db, ObjectID, Collection } from 'mongodb'
-import { provide, postConstruct } from '@cc-server/ioc'
+import { ObjectID, Collection } from 'mongodb'
 
-@provide(DBClient)
-export class MongoDBClient<T = any> implements DBClient {
-    private table: string;
-    private db: Db;
+export class MongoCollection<T = any> implements DBClient {
     private collection: Collection<T>;
 
-    @postConstruct()
-    private async init() {
-        this.db = await MongoDBConnection.getConnection();
-        if (this.table) {
-            this.collection = this.db.collection(this.table);
-        }
+    constructor(collection: Collection<T>) {
+        this.collection = collection;
     }
 
     public getProvide<P>(): P {
-        return this.db as {} as P;
-    }
-
-    public setTable(table: string): void {
-        this.table = table;
-        if (this.db) {
-            this.collection = this.db.collection(table);
-        }
+        return this.collection as {} as P;
     }
 
     public async find(filter: object): Promise<T[]> {

packages/db-mongo/src/client/connection.ts

@@ -1,18 +0,0 @@
-import { Db, MongoClient } from 'mongodb';
-
-const connStr = process.env.FAAS_MONGO_URL || 'mongodb://192.168.0.2:27017';
-const dbName = process.env.FAAS_MONGO_DB || "faas";
-
-export class MongoDBConnection {
-    private static db: Db;
-
-    public static async getConnection(): Promise<Db> {
-        if (!this.db) { this.db = await this.connect() }
-        return this.db;
-    }
-
-    private static async connect(): Promise<Db> {
-        let client = await MongoClient.connect(connStr, { useNewUrlParser: true });
-        return client.db(dbName);
-    }
-}

packages/db-mongo/src/constants.ts

@@ -0,0 +1,7 @@
+export const TYPE = {
+    URL: Symbol.for('URL'),
+    DB: Symbol.for('DB'),
+    Client: Symbol.for('Client'),
+    Database: Symbol.for('Database'),
+    Collection: Symbol.for('Collection')
+}

packages/db-mongo/src/index.ts

@@ -1,2 +1,3 @@
 export * from 'mongodb'
 export * from './client'
+export * from './constants'