Genres: complete service

src/genres/genres.service.ts

@@ -1,25 +1,38 @@
 import { Injectable } from '@nestjs/common';
 import { GenreDto } from './dto/genre.dto';
+import { InjectModel } from '@nestjs/mongoose';
+import { Genre } from './entities/genre.entity';
+import { Model } from 'mongoose';
 
 @Injectable()
 export class GenresService {
-  create(dto: GenreDto) {
-    return 'This action adds a new genre';
+  constructor(@InjectModel('Genre') private genreModel: Model<Genre>) {}
+
+  async create(dto: GenreDto): Promise<any> {
+    const genre = new this.genreModel(dto);
+    return genre.save();
   }
 
-  findAll() {
-    return `This action returns all genres`;
+  async findAll(page: number, genresPerPage: number): Promise<any> {
+    let genres;
+    if (genresPerPage !== undefined) {
+      const skip = (page - 1) * genresPerPage;
+      genres = await this.genreModel.find().skip(skip).limit(genresPerPage);
+    } else {
+      genres = await this.genreModel.find();
+    }
+    const total = await this.genreModel.countDocuments();
+    return {
+      genres: genres,
+      genreCount: total,
+    };
   }
 
-  findOne(id: number) {
-    return `This action returns a #${id} genre`;
+  async findId(id: string): Promise<any> {
+    return this.genreModel.findById(id);
   }
 
-  update(id: number, dto: GenreDto) {
-    return `This action updates a #${id} genre`;
-  }
-
-  remove(id: number) {
-    return `This action removes a #${id} genre`;
+  async remove(id: string): Promise<any> {
+    return this.genreModel.findByIdAndDelete(id);
   }
 }