fixed category in posts

src/main/java/com/krylov/refound/dto/PostResponse.java

@@ -1,6 +1,5 @@
 package com.krylov.refound.dto;
 
-import com.krylov.refound.entity.Image;
 import com.krylov.refound.enums.PostStatus;
 import com.krylov.refound.enums.PostType;
 import java.time.LocalDateTime;

src/main/java/com/krylov/refound/entity/Post.java

@@ -1,6 +1,7 @@
 package com.krylov.refound.entity;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.krylov.refound.enums.PostCategory;
 import com.krylov.refound.enums.PostStatus;
 import com.krylov.refound.enums.PostType;
 import jakarta.persistence.CascadeType;
@@ -32,7 +33,8 @@ public class Post {
   private String title;
   @Column(length = 2000)
   private String description;
-  private String category;
+  @Enumerated(EnumType.STRING)
+  private PostCategory category;
   private String city;
   private String district;
   private Double latitude;
@@ -53,5 +55,4 @@ public class Post {
   @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
   private List<Image> images  = new ArrayList<>();
 
-
 }

src/main/java/com/krylov/refound/enums/PostCategory.java

@@ -0,0 +1,29 @@
+package com.krylov.refound.enums;
+
+import lombok.Getter;
+
+@Getter
+public enum PostCategory {
+  ANIMAL("Питомец"),
+  THING("Вещь"),
+  OTHER("Другое");
+
+  private final String displayName;
+
+  PostCategory(String displayName) {
+    this.displayName = displayName;
+  }
+
+  public static PostCategory fromDisplayName(String displayName) {
+    if (displayName == null) {
+      return null;
+    }
+    for (PostCategory category : PostCategory.values()) {
+      if (category.displayName.equals(displayName)) {
+        return category;
+      }
+    }
+    throw new IllegalArgumentException("No enum constant with displayName: " + displayName);
+  }
+
+}

src/main/java/com/krylov/refound/mapper/PostMapper.java

@@ -3,6 +3,7 @@ package com.krylov.refound.mapper;
 import com.krylov.refound.dto.PostRequest;
 import com.krylov.refound.dto.PostResponse;
 import com.krylov.refound.entity.Post;
+import com.krylov.refound.enums.PostCategory;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
 import com.krylov.refound.entity.Image;
@@ -12,10 +13,12 @@ import java.util.List;
 @Mapper(componentModel = "spring")
 public interface PostMapper {
 
+  @Mapping(source = "category", target = "category", qualifiedByName = "stringToPostCategory")
   Post toEntity(PostRequest request);
 
   @Mapping(source = "user.login", target = "userEmail")
   @Mapping(source = "images", target = "images", qualifiedByName = "imagesToUrls")
+  @Mapping(target = "category", expression = "java(post.getCategory().getDisplayName())")
   PostResponse toResponse(Post post);
 
   @Named("imagesToUrls")
@@ -25,4 +28,10 @@ public interface PostMapper {
         .map(Image::getUrl)
         .toList();
   }
+
+  @Named("stringToPostCategory")
+  default PostCategory stringToPostCategory(String displayName) {
+    if (displayName == null) return null;
+    return PostCategory.fromDisplayName(displayName);
+  }
 }

src/main/java/com/krylov/refound/service/PostService.java

@@ -5,6 +5,7 @@ import com.krylov.refound.dto.PostResponse;
 import com.krylov.refound.entity.Image;
 import com.krylov.refound.entity.Post;
 import com.krylov.refound.enums.ErrorCode;
+import com.krylov.refound.enums.PostCategory;
 import com.krylov.refound.enums.PostStatus;
 import com.krylov.refound.exception.ApiException;
 import com.krylov.refound.mapper.PostMapper;
@@ -93,7 +94,9 @@ public class PostService {
 
     post.setTitle(request.getTitle());
     post.setDescription(request.getDescription());
-    post.setCategory(request.getCategory());
+    if (request.getCategory() != null) {
+      post.setCategory(PostCategory.fromDisplayName(request.getCategory()));
+    }
     post.setPhone(request.getPhone());
     post.setType(request.getType());
     if (request.getLatitude() != null && request.getLongitude() != null){