\update: the slugify method

src/modules/blogs/providers/blogs.service.ts

@@ -1,5 +1,4 @@
 import { BadRequestException, Injectable } from "@nestjs/common";
-import slugify from "slugify";
 import { Not } from "typeorm";
 
 import { BlogMessage, CommonMessage } from "../../../common/enums/message.enum";
@@ -106,12 +105,13 @@ export class BlogsService {
     const category = await this.findCategoryById(createBlogDto.categoryId);
 
     const slug = this.generateSlug(createBlogDto.slug);
+    console.log(slug);
 
     const blog = this.blogsRepository.create({
       ...createBlogDto,
-      slug,
       author: { id: authorId },
       category,
+      slug,
     });
 
     await this.blogsRepository.save(blog);
@@ -140,10 +140,13 @@ export class BlogsService {
     if (updateBlogDto.slug) {
       const existBlog = await this.blogsRepository.findOne({ where: { slug: updateBlogDto.slug, id: Not(id) } });
       if (existBlog) throw new BadRequestException(BlogMessage.BLOG_ALREADY_EXISTS);
-      blog.slug = this.generateSlug(updateBlogDto.slug);
     }
 
-    await this.blogsRepository.save({ ...blog, ...updateBlogDto });
+    await this.blogsRepository.save({
+      ...blog,
+      ...updateBlogDto,
+      slug: this.generateSlug(updateBlogDto.slug ?? blog.slug),
+    });
 
     return {
       message: CommonMessage.UPDATE_SUCCESS,
@@ -258,8 +261,16 @@ export class BlogsService {
   }
 
   //*********************************** */
-  private generateSlug(title: string): string {
-    return slugify(title, { lower: true, strict: true });
+  private generateSlug(slug: string): string {
+    if (!slug) return "";
+
+    // Replace spaces and special characters with hyphens, preserve Farsi characters
+    return slug
+      .trim()
+      .replace(/[&\\#,+()$~%.'":*?<>{}]/g, "") // Remove special characters
+      .replace(/\s+/g, "-") // Replace spaces with hyphens
+      .replace(/-+/g, "-") // Replace multiple hyphens with single hyphen
+      .trim();
   }
 
   //*********************************** */