implementing mongoose managers

backend/model/mongoose/MongoUserManager.ts

@@ -0,0 +1,45 @@
+import {User} from "../../../common/entities/User";
+import {IUserManager} from "../IUserManager";
+import {DatabaseManager} from "./DatabaseManager";
+
+export class MongoUserManager implements IUserManager{
+
+    private UserModel;
+
+    constructor(){
+        this.UserModel = DatabaseManager.getInstance().getModel('user',{
+            name:String,
+            email:{ type: String, index: { unique: true }},
+            password:String,
+            role:Number
+        });
+    }
+
+    public findOne(filter,cb:(error: any,result:User) => void){
+        return this.UserModel.findOne(filter,function (err, result) {
+            return cb(err, result);
+        }); 
+    }
+
+    public find(filter,cb:(error: any,result:Array<User>) => void){
+        this.UserModel.find(filter,function (err, result) {
+            return cb(err, result);
+        });
+    }
+
+    public createUser(user,cb:(error: any,result:User) => void){        
+        this.UserModel.create(user,cb);
+    }
+
+    public deleteUser(id:number,cb:(error: any) => void){
+        this.UserModel.remove({id:id},cb);
+    }
+    
+    public changeRole(request:any,cb:(error: any,result:string) => void){
+        throw new Error("not implemented"); //TODO: implement
+    }
+    public changePassword(request:any,cb:(error: any,result:string) => void){
+        throw new Error("not implemented"); //TODO: implement
+    }
+
+}