fix: add addCategory function

backend/src/api/movies/movies.controller.ts

@@ -30,6 +30,11 @@ export class MoviesController {
     return await this.moviesService.findOne(id);
   }
 
+  @Patch(':id/:categoryName')
+  async addCategory(@Param('id') id: string, @Param('categoryName') categoryName: string) {
+    return await this.moviesService.addCategory(id, categoryName);
+  }
+
   @Patch(':id')
   async update(@Param('id') id: string, @Body() updateMovieDto: UpdateMovieDto) {
     return await this.moviesService.update(id, updateMovieDto);

backend/src/api/movies/movies.service.ts

@@ -2,6 +2,7 @@ import { Injectable } from '@nestjs/common';
 import { CreateMovieDto } from './dto/create-movie.dto';
 import { UpdateMovieDto } from './dto/update-movie.dto';
 import { PrismaService } from '../../prisma.service';
+import { CreateCategoryDto } from '../categories/dto/create-category.dto';
 
 @Injectable()
 export class MoviesService {
@@ -25,6 +26,37 @@ export class MoviesService {
     });
   }
 
+  addCategory(movieId: string, categoryName: string) {
+    this.prisma.category.update({
+      data: {
+        movies: {
+          connect: {
+            id: movieId,
+          },
+        },
+      },
+      where: {
+        name: categoryName,
+      },
+    });
+
+    return this.prisma.movie.update({
+      data: {
+        categories: {
+          connect: {
+            name: categoryName,
+          },
+        },
+      },
+      where: {
+        id: movieId,
+      },
+      include: {
+        categories: true,
+      },
+    });
+  }
+
   update(id: string, updateMovieDto: UpdateMovieDto) {
     return `This action updates a #${id} movie`;
   }