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manirDevmanirDev
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Product Comment CRUD is done successfully.
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‎src/main/java/com/manir/springbootecommercerestapi/controller/CommentController.java

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package com.manir.springbootecommercerestapi.controller;
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import com.manir.springbootecommercerestapi.dto.CommentDto;
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import com.manir.springbootecommercerestapi.service.CommentService;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.*;
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import javax.annotation.Resource;
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import java.util.List;
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@RestController
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@RequestMapping(value = "api/v1/products")
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public class CommentController {
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@Resource
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private CommentService commentService;
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//create comment api
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@PostMapping("/{productId}/createComment")
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public ResponseEntity<CommentDto> createComment(@PathVariable Long productId,
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@RequestBody CommentDto commentDto){
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CommentDto responseComment = commentService.createComment(productId, commentDto);
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return new ResponseEntity<>(responseComment, HttpStatus.CREATED);
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}
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//get all comments api
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@GetMapping("/getAllComments")
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public List<CommentDto> getAllComments(){
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return commentService.getAllComments();
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}
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//get comments by product id api
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@GetMapping("/{productId}/getCommentByProductId")
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public List<CommentDto> getCommentByProductId(@PathVariable Long productId){
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return commentService.getAllCommentsByProductId(productId);
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}
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//get comment by id api
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@GetMapping("/{productId}/comment/{commentId}")
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public ResponseEntity<CommentDto> getCommentById(@PathVariable Long productId, @PathVariable Long commentId){
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CommentDto responseComment = commentService.getCommentById(productId, commentId);
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return ResponseEntity.ok(responseComment);
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}
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//update comment api
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@PutMapping("/{productId}/update/{commentId}")
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public ResponseEntity<CommentDto> updateComment(@PathVariable Long productId,
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@RequestBody CommentDto commentDto,
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@PathVariable Long commentId){
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CommentDto responseComment = commentService.updateComment(productId, commentDto, commentId);
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return ResponseEntity.ok(responseComment);
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}
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//delete comment api
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@DeleteMapping("/{productId}/delete/{commentId}")
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public ResponseEntity<String> deleteComment(@PathVariable Long productId, @PathVariable Long commentId){
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commentService.deleteComment(productId, commentId);
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return ResponseEntity.ok("Comment with id: "+commentId+" is successfully:)");
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}
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}

‎src/main/java/com/manir/springbootecommercerestapi/dto/CommentDto.java

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package com.manir.springbootecommercerestapi.dto;
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import lombok.Data;
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@Data
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public class CommentDto {
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private Long id;
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private String review;
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private Integer rate;
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private String status;
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}

‎src/main/java/com/manir/springbootecommercerestapi/dto/ProductDto.java

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private CategoryDto category;
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private Set<ImageDataDto> images;
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private Set<CommentDto> comments;
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}

‎src/main/java/com/manir/springbootecommercerestapi/repository/CommentRepository.java

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package com.manir.springbootecommercerestapi.repository;
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import com.manir.springbootecommercerestapi.resource.Comment;
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import org.springframework.data.jpa.repository.JpaRepository;
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import java.util.List;
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import java.util.Optional;
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public interface CommentRepository extends JpaRepository<Comment, Long> {
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List<Comment> findByProductId(Long productId);
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}

‎src/main/java/com/manir/springbootecommercerestapi/repository/ProductRepository.java

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package com.manir.springbootecommercerestapi.repository;
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import com.manir.springbootecommercerestapi.resource.Comment;
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import com.manir.springbootecommercerestapi.resource.Product;
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import org.springframework.data.jpa.repository.JpaRepository;
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import java.util.List;
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public interface ProductRepository extends JpaRepository<Product, Long> {
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}

‎src/main/java/com/manir/springbootecommercerestapi/resource/Comment.java

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package com.manir.springbootecommercerestapi.resource;
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import lombok.*;
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import javax.persistence.*;
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@AllArgsConstructor
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@NoArgsConstructor
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@Setter
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@Getter
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@Entity
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@Table(name = "product_comments")
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public class Comment {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long id;
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@Column(name = "review")
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private String review;
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@Column(name = "rate")
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private Integer rate;
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@Column(name = "status")
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private String status;
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@ManyToOne(fetch = FetchType.LAZY)
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@JoinColumn(name = "product_id")
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private Product product;
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}

‎src/main/java/com/manir/springbootecommercerestapi/resource/Product.java

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//relation image gallery
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@OneToMany(mappedBy = "product", cascade = CascadeType.ALL, orphanRemoval = true)
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private Set<ImageData> images;
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//relation to product comment
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@OneToMany(mappedBy = "product", cascade = CascadeType.ALL, orphanRemoval = true)
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private Set<Comment> comments;
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}

‎src/main/java/com/manir/springbootecommercerestapi/service/CommentService.java

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package com.manir.springbootecommercerestapi.service;
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import com.manir.springbootecommercerestapi.dto.CommentDto;
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import java.util.List;
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public interface CommentService {
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CommentDto createComment(Long productId, CommentDto commentDto);
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List<CommentDto> getAllComments();
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List<CommentDto> getAllCommentsByProductId(Long productId);
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CommentDto getCommentById(Long productId, Long commentId);
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CommentDto updateComment(Long productId, CommentDto commentDto, Long commentId);
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void deleteComment(Long productId, Long commentId);
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}

‎src/main/java/com/manir/springbootecommercerestapi/service/Impl/CommentServiceImpl.java

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package com.manir.springbootecommercerestapi.service.Impl;
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import com.manir.springbootecommercerestapi.dto.CommentDto;
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import com.manir.springbootecommercerestapi.exception.ResourceNotFoundException;
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import com.manir.springbootecommercerestapi.repository.CommentRepository;
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import com.manir.springbootecommercerestapi.repository.ProductRepository;
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import com.manir.springbootecommercerestapi.resource.Comment;
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import com.manir.springbootecommercerestapi.resource.Product;
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import com.manir.springbootecommercerestapi.service.CommentService;
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import org.modelmapper.ModelMapper;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.util.List;
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import java.util.stream.Collectors;
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@Service
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public class CommentServiceImpl implements CommentService {
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@Resource
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private ModelMapper modelMapper;
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@Resource
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private CommentRepository commentRepository;
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@Resource
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private ProductRepository productRepository;
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@Override
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public CommentDto createComment(Long productId, CommentDto commentDto) {
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Product product = productRepository.findById(productId).orElseThrow(()->new ResourceNotFoundException("Product", productId));
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//convert to entity
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Comment comment = mapToEntity(commentDto);
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//save to db
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comment.setProduct(product);
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Comment createdComment = commentRepository.save(comment);
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//convert to dto
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CommentDto responseComment = mapToDto(createdComment);
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return responseComment;
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}
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@Override
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public List<CommentDto> getAllComments() {
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List<Comment> comments = commentRepository.findAll();
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List<CommentDto> commentDtoList = comments.stream().map(comment -> mapToDto(comment)).collect(Collectors.toList());
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return commentDtoList;
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}
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@Override
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public List<CommentDto> getAllCommentsByProductId(Long productId) {
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List<Comment> comments = commentRepository.findByProductId(productId);
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List<CommentDto> commentDtoList = comments.stream().map(comment -> mapToDto(comment)).collect(Collectors.toList());
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return commentDtoList;
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}
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@Override
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public CommentDto getCommentById(Long productId, Long commentId) {
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Product product = productRepository.findById(productId).orElseThrow(()->new ResourceNotFoundException("Product", productId));
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Comment comment = commentRepository.findById(commentId).orElseThrow(()->new ResourceNotFoundException("Comment", commentId));
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CommentDto responseComment = null;
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if (comment.getProduct().getId() == product.getId()){
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responseComment = mapToDto(comment);
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}
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return responseComment;
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}
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@Override
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public CommentDto updateComment(Long productId, CommentDto commentDto, Long commentId) {
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Product product = productRepository.findById(productId).orElseThrow(()->new ResourceNotFoundException("Product", productId));
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Comment comment = commentRepository.findById(commentId).orElseThrow(()->new ResourceNotFoundException("Comment", commentId));
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if (comment.getProduct().getId() == product.getId()){
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comment.setReview(commentDto.getReview());
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comment.setRate(commentDto.getRate());
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comment.setStatus(commentDto.getStatus());
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}
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Comment updatedComment = commentRepository.save(comment);
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return mapToDto(updatedComment);
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}
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@Override
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public void deleteComment(Long productId, Long commentId) {
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Product product = productRepository.findById(productId).orElseThrow(()->new ResourceNotFoundException("Product", productId));
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Comment comment = commentRepository.findById(commentId).orElseThrow(()->new ResourceNotFoundException("Comment", commentId));
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if (comment.getProduct().getId() == product.getId()){
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commentRepository.delete(comment);
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}
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}
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//map to dto
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private CommentDto mapToDto(Comment comment){
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CommentDto commentDto = modelMapper.map(comment, CommentDto.class);
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return commentDto;
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}
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//map to entity
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private Comment mapToEntity(CommentDto commentDto){
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Comment comment = modelMapper.map(commentDto, Comment.class);
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return comment;
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}
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}

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