Bug fix for the review and rating

Author: Celse13

src/controllers/ProductReviewController.ts

@@ -1,6 +1,5 @@
 import { Request, Response } from 'express';
 import { db } from '../database/models';
-import { where } from 'sequelize';
 import validateProductReview from '../validations/validateProductReview';
 
 interface User {
@@ -10,81 +9,105 @@ interface User {
 interface CustomRequest extends Request {
   user?: User;
 }
+
 interface Review {
   reviewComment: string;
   rating: number;
+  User: {
+    firstName: string;
+    lastName: string;
+  };
 }
 
 export default class ProductReviewController {
-  static async Review(req: CustomRequest, res: Response) {
-    validateProductReview(req.body as Review);
-    const user = (req as any).user;
-    try {
-      const foundUser = await db.User.findOne({
-        where: { userId: user.userId },
-      });
+  static async createReview(req: CustomRequest, res: Response) {
+    const { reviewComment, rating } = req.body;
+    const userId = req.user?.userId;
+    const productId = req.params.id;
 
+    if (!userId || !productId) {
+      return res.status(400).json({ message: 'Missing user or product ID' });
+    }
+
+    try {
+      const foundUser = await db.User.findOne({ where: { userId } });
       if (!foundUser) {
-        return res.status(404).json({
-          message: 'user with the given Id is not found',
-        });
+        return res.status(404).json({ message: 'User not found' });
       }
-      const foundProduct = await db.Product.findOne({
-        where: { productId: req.params.id },
-      });
+
+      const foundProduct = await db.Product.findOne({ where: { productId } });
       if (!foundProduct) {
-        return res.status(404).json({
-          message: 'product with the given id not found',
-        });
+        return res.status(404).json({ message: 'Product not found' });
       }
-      const AlreadyReviewed = await db.ProductReview.findOne({
-        where: { userId: foundUser.userId },
+
+      let review = await db.ProductReview.findOne({
+        where: { userId, productId },
       });
-      if (AlreadyReviewed) {
-        return res.status(401).json({
-          message: 'you can review a product only once',
+
+      if (review) {
+        // Review exists, update it
+        if (reviewComment !== undefined) review.reviewComment = reviewComment;
+        if (rating !== undefined) review.rating = rating;
+        await review.save();
+      } else {
+        // Create new review
+        review = await db.ProductReview.create({
+          productId,
+          userId,
+          reviewComment: reviewComment || null, // Set to null if not provided
+          rating: rating || null, // Set to null if not provided
         });
       }
-      const ProductReview = await db.ProductReview.create({
-        productId: req.params.id,
-        userId: foundUser.userId,
-        reviewComment: req.body.reviewComment,
-        rating: req.body.rating,
-      });
+
       return res.status(200).json({
-        message: 'review recorded successfully',
+        message: 'Review processed successfully',
+        review,
+        user: {
+          firstName: foundUser.firstName,
+          lastName: foundUser.lastName,
+        },
       });
-    } catch (error: any) {
+    } catch (error) {
       return res.status(500).json({
-        message: error.message,
+        message:
+          error instanceof Error ? error.message : 'An unknown error occurred',
       });
     }
   }
 
   static async editReview(req: CustomRequest, res: Response) {
     validateProductReview(req.body as Review);
-    const user = (req as any).user;
+    const user = req.user;
+    if (!user) {
+      return res.status(400).json({ message: 'User information is missing' });
+    }
     try {
       const foundUser = await db.User.findOne({
         where: { userId: user.userId },
       });
       if (!foundUser) {
         return res.status(404).json({
-          message: 'user with the given id not found',
+          message: 'User with the given id not found',
         });
       }
       let foundReview = await db.ProductReview.findOne({
         where: { userId: foundUser.userId, productId: req.params.id },
       });
       if (!foundReview) {
         return res.status(404).json({
-          message: 'review not found for the given product by the user',
+          message: 'Review not found for the given product by the user',
         });
       }
-      foundReview = await foundReview.update({
-        rating: req.body.rating,
-        reviewComment: req.body.reviewComment,
-      });
+      // Update reviewComment if provided
+      if (req.body.reviewComment !== undefined) {
+        foundReview.reviewComment = req.body.reviewComment;
+      }
+      // Update rating if provided
+      if (req.body.rating !== undefined) {
+        foundReview.rating = req.body.rating;
+      }
+      await foundReview.save();
+
       return res.status(200).json({
         message: 'Review updated successfully',
         review: foundReview,
@@ -97,22 +120,25 @@ export default class ProductReviewController {
   }
 
   static async deleteReview(req: CustomRequest, res: Response) {
-    const user = (req as any).user;
+    const user = req.user;
+    if (!user) {
+      return res.status(400).json({ message: 'User information is missing' });
+    }
     try {
       const foundUser = await db.User.findOne({
         where: { userId: user.userId },
       });
       if (!foundUser) {
         return res.status(404).json({
-          message: 'user with the given id not found',
+          message: 'User with the given id not found',
         });
       }
       const foundReview = await db.ProductReview.findOne({
         where: { userId: foundUser.userId, productId: req.params.id },
       });
       if (!foundReview) {
         return res.status(404).json({
-          message: 'review not found for the given product by the user',
+          message: 'Review not found for the given product by the user',
         });
       }
       await foundReview.destroy();
@@ -133,7 +159,7 @@ export default class ProductReviewController {
       });
       if (!foundProduct) {
         return res.status(404).json({
-          message: 'product with the given id not found',
+          message: 'Product with the given id not found',
         });
       }
       await db.ProductReview.destroy({
@@ -150,24 +176,49 @@ export default class ProductReviewController {
   }
 
   static async getAllReviews(req: CustomRequest, res: Response) {
+    const productId = req.params.id;
+
     try {
       const foundProduct = await db.Product.findOne({
-        where: { productId: req.params.id },
+        where: { productId },
       });
-      if (!foundProduct)
+
+      if (!foundProduct) {
         return res.status(404).json({
           message: 'Product with the given id not found',
         });
+      }
+
       const reviews = await db.ProductReview.findAll({
-        where: { productId: foundProduct.productId },
+        where: { productId },
+        include: [
+          {
+            model: db.User,
+            attributes: ['firstName', 'lastName'], // Only include firstName and lastName
+          },
+        ],
+        attributes: ['reviewComment', 'rating', 'userId'], // Include any other attributes you need
       });
-      if (reviews.length === 0)
+
+      if (reviews.length === 0) {
         return res.status(404).json({
-          message: 'this product has no reviews',
+          message: 'This product has no reviews',
         });
+      }
+
+      // Format the response to include user details
+      const formattedReviews = reviews.map((review: Review) => ({
+        reviewComment: review.reviewComment,
+        rating: review.rating,
+        user: {
+          firstName: review.User.firstName,
+          lastName: review.User.lastName,
+        },
+      }));
+
       return res.status(200).json({
-        message: 'reviews retrieved successfully',
-        data: reviews,
+        message: 'Reviews retrieved successfully',
+        data: formattedReviews,
       });
     } catch (error) {
       return res.status(500).json({

src/database/migrations/20240521061436-create-product-review.ts

@@ -28,15 +28,15 @@ module.exports = {
       },
       rating: {
         type: Sequelize.INTEGER,
-        allowNull: false,
+        allowNull: true,
         validate: {
           min: 1,
           max: 5,
         },
       },
       reviewComment: {
         type: Sequelize.TEXT,
-        allowNull: false,
+        allowNull: true,
       },
       createdAt: {
         allowNull: false,

src/database/models/productreview.ts

@@ -53,15 +53,15 @@ module.exports = (
       },
       rating: {
         type: DataTypes.INTEGER,
-        allowNull: false,
+        allowNull: true, // Changed from false to true to allow null values
         validate: {
           min: 1,
           max: 5,
         },
       },
       reviewComment: {
         type: DataTypes.TEXT,
-        allowNull: false,
+        allowNull: true,
       },
       createdAt: {
         allowNull: false,

src/routes/productReviewRoutes.ts

@@ -6,7 +6,7 @@ router.post(
   '/:id/review',
   authMiddleware.verifyToken,
   authMiddleware.isAuthenticated,
-  ProductReviewController.Review,
+  ProductReviewController.createReview,
 );
 router.get('/:id/review', ProductReviewController.getAllReviews);
 router.put(