Crud groups

Created by: hihubbIe

src/groups/dao/groups.dao.ts

+import {
+  Injectable,
+  NotFoundException,
+  InternalServerErrorException,
+} from '@nestjs/common';
+import { InjectModel } from '@nestjs/mongoose';
+import { Model } from 'mongoose';
+import { CreateGroupDto } from '../dto/create-group.dto';
+import { UpdateGroupDto } from '../dto/update-group.dto';
+import { Group } from '../schemas/group.schema';
+
+@Injectable()
+export class GroupsDao {
+  constructor(
+    @InjectModel(Group.name)
+    private readonly _groupModel: Model<Group>,
+  ) {}
+
+  find = (): Promise<Group[]> =>
+    new Promise((resolve, reject) => {
+      this._groupModel.find({}, {}, {}, (err, value) => {
+        if (err) reject(err.message);
+        if (!value) reject('No values');
+        resolve(value);
+      });
+    });
+
+  findById = (id: string): Promise<Group | void> =>
+    new Promise((resolve, reject) => {
+      this._groupModel.findOne({ id: id }, {}, {}, (err, value) => {
+        if (err) reject(err.message);
+        if (!value) reject(new NotFoundException());
+        resolve(value);
+      });
+    });
+
+  save = (group: CreateGroupDto): Promise<Group> =>
+    new Promise((resolve, reject) => {
+      new this._groupModel(group).save((err, value) => {
+        if (err) reject(err.message);
+        if (!value) reject(new InternalServerErrorException());
+        resolve(value);
+      });
+    });
+
+  findByIdAndUpdate = (
+    id: string,
+    group: UpdateGroupDto,
+  ): Promise<Group | void> =>
+    new Promise((resolve, reject) => {
+      this._groupModel.updateOne(
+        { id: id },
+        group,
+        {
+          new: true,
+          runValidators: true,
+        },
+        (err, value) => {
+          if (err) reject(err.message);
+          if (value.matchedCount === 0) reject(new NotFoundException());
+          resolve(value);
+        },
+      );
+    });
+
+  findByIdAndRemove = (id: string): Promise<Group | void> =>
+    new Promise((resolve, reject) => {
+      this._groupModel.deleteOne({ id: id }, {}, (err) => {
+        if (err) reject(err.message);
+        resolve();
+      });
+    });
+}