资源分类增加检测api

src/main/java/xyz/playedu/api/controller/backend/ResourceCategoryController.java

@@ -6,12 +6,16 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 import xyz.playedu.api.PlayEduBContext;
 import xyz.playedu.api.constant.BPermissionConstant;
+import xyz.playedu.api.constant.BackendConstant;
+import xyz.playedu.api.domain.Resource;
 import xyz.playedu.api.domain.ResourceCategory;
 import xyz.playedu.api.event.ResourceCategoryDestroyEvent;
 import xyz.playedu.api.exception.NotFoundException;
 import xyz.playedu.api.middleware.BackendPermissionMiddleware;
 import xyz.playedu.api.request.backend.ResourceCategoryRequest;
+import xyz.playedu.api.service.CourseService;
 import xyz.playedu.api.service.ResourceCategoryService;
+import xyz.playedu.api.service.ResourceService;
 import xyz.playedu.api.types.JsonResponse;
 
 import java.util.*;
@@ -28,6 +32,12 @@ public class ResourceCategoryController {
     @Autowired
     private ResourceCategoryService categoryService;
 
+    @Autowired
+    private CourseService courseService;
+
+    @Autowired
+    private ResourceService resourceService;
+
     @Autowired
     private ApplicationContext ctx;
 
@@ -79,6 +89,39 @@ public class ResourceCategoryController {
         return JsonResponse.success();
     }
 
+    @BackendPermissionMiddleware(slug = BPermissionConstant.RESOURCE_CATEGORY)
+    @GetMapping("/{id}/destroy")
+    public JsonResponse preDestroy(@PathVariable Integer id) {
+        List<Integer> courseIds = categoryService.getCourseIdsById(id);
+        List<Integer> rids = categoryService.getRidsById(id);
+
+        HashMap<String, Object> data = new HashMap<>();
+        data.put("courses", new ArrayList<>());
+        data.put("videos", new ArrayList<>());
+        data.put("images", new ArrayList<>());
+
+        if (courseIds != null && courseIds.size() > 0) {
+            data.put("courses", courseService.chunks(courseIds, new ArrayList<>() {{
+                add("id");
+                add("title");
+            }}));
+        }
+
+        if (rids != null && rids.size() > 0) {
+            Map<String, List<Resource>> resources = resourceService.chunks(rids, new ArrayList<>() {{
+                add("id");
+                add("admin_id");
+                add("type");
+                add("name");
+                add("url");
+            }}).stream().collect(Collectors.groupingBy(Resource::getType));
+            data.put("videos", resources.get(BackendConstant.RESOURCE_TYPE_VIDEO));
+            data.put("images", resources.get(BackendConstant.RESOURCE_TYPE_IMAGE));
+        }
+
+        return JsonResponse.data(data);
+    }
+
     @BackendPermissionMiddleware(slug = BPermissionConstant.RESOURCE_CATEGORY)
     @DeleteMapping("/{id}")
     public JsonResponse destroy(@PathVariable Integer id) throws NotFoundException {

src/main/java/xyz/playedu/api/service/ResourceCategoryService.java

@@ -29,4 +29,8 @@ public interface ResourceCategoryService extends IService<ResourceCategory> {
 
     String compParentChain(Integer parentId) throws NotFoundException;
 
+    List<Integer> getCourseIdsById(Integer id);
+
+    List<Integer> getRidsById(Integer id);
+
 }

src/main/java/xyz/playedu/api/service/ResourceService.java

@@ -27,4 +27,6 @@ public interface ResourceService extends IService<Resource> {
 
     List<Resource> chunks(List<Integer> ids);
 
+    List<Resource> chunks(List<Integer> ids, List<String> fields);
+
 }

src/main/java/xyz/playedu/api/service/impl/ResourceCategoryServiceImpl.java

@@ -1,12 +1,17 @@
 package xyz.playedu.api.service.impl;
 
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.transaction.annotation.Transactional;
 import xyz.playedu.api.domain.ResourceCategory;
+import xyz.playedu.api.domain.ResourceCategoryRelation;
+import xyz.playedu.api.domain.ResourceCourseCategory;
 import xyz.playedu.api.exception.NotFoundException;
 import xyz.playedu.api.service.ResourceCategoryService;
 import xyz.playedu.api.mapper.ResourceCategoryMapper;
 import org.springframework.stereotype.Service;
+import xyz.playedu.api.service.internal.ResourceCategoryRelationService;
+import xyz.playedu.api.service.internal.ResourceCourseCategoryService;
 
 import java.util.ArrayList;
 import java.util.Date;
@@ -21,6 +26,12 @@ import java.util.List;
 public class ResourceCategoryServiceImpl extends ServiceImpl<ResourceCategoryMapper, ResourceCategory>
         implements ResourceCategoryService {
 
+    @Autowired
+    private ResourceCourseCategoryService resourceCourseCategoryService;
+
+    @Autowired
+    private ResourceCategoryRelationService resourceCategoryRelationService;
+
     @Override
     public List<ResourceCategory> listByParentId(Integer id) {
         return list(query().getWrapper().eq("parent_id", id).orderByAsc("sort"));
@@ -154,7 +165,16 @@ public class ResourceCategoryServiceImpl extends ServiceImpl<ResourceCategoryMap
         }
         return parentChain;
     }
-    
+
+    @Override
+    public List<Integer> getCourseIdsById(Integer id) {
+        return resourceCourseCategoryService.list(resourceCourseCategoryService.query().getWrapper().eq("category_id", id)).stream().map(ResourceCourseCategory::getCourseId).toList();
+    }
+
+    @Override
+    public List<Integer> getRidsById(Integer id) {
+        return resourceCategoryRelationService.list(resourceCategoryRelationService.query().getWrapper().eq("cid", id)).stream().map(ResourceCategoryRelation::getRid).toList();
+    }
 }
 
 

src/main/java/xyz/playedu/api/service/impl/ResourceServiceImpl.java

@@ -150,6 +150,11 @@ public class ResourceServiceImpl extends ServiceImpl<ResourceMapper, Resource> i
     public List<Resource> chunks(List<Integer> ids) {
         return list(query().getWrapper().in("id", ids));
     }
+
+    @Override
+    public List<Resource> chunks(List<Integer> ids, List<String> fields) {
+        return list(query().getWrapper().in("id", ids).select(fields));
+    }
 }