Crud groups

Created by: hihubbIe

src/groups/dao/groups.dao.ts

-import { Injectable } from '@nestjs/common';
+import {
+  Injectable,
+  NotFoundException,
+  InternalServerErrorException,
+} from '@nestjs/common';
 import { InjectModel } from '@nestjs/mongoose';
 import { Model } from 'mongoose';
 import { CreateGroupDto } from '../dto/create-group.dto';
@@ -16,6 +20,7 @@ export class GroupsDao {
     new Promise((resolve, reject) => {
       this._groupModel.find({}, {}, {}, (err, value) => {
         if (err) reject(err.message);
+        if (!value) reject('No values');
         resolve(value);
       });
     });
@@ -24,6 +29,7 @@ export class GroupsDao {
     new Promise((resolve, reject) => {
       this._groupModel.findOne({ id: id }, {}, {}, (err, value) => {
         if (err) reject(err.message);
+        if (!value) reject(new NotFoundException());
         resolve(value);
       });
     });
@@ -32,6 +38,7 @@ export class GroupsDao {
     new Promise((resolve, reject) => {
       new this._groupModel(group).save((err, value) => {
         if (err) reject(err.message);
+        if (!value) reject(new InternalServerErrorException());
         resolve(value);
       });
     });
@@ -50,6 +57,7 @@ export class GroupsDao {
         },
         (err, value) => {
           if (err) reject(err.message);
+          if (value.matchedCount === 0) reject(new NotFoundException());
           resolve(value);
         },
       );