返回资源分类的资源数量

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

@@ -1,5 +1,6 @@
 package xyz.playedu.api.controller.backend;
 
+import cn.hutool.core.lang.hash.Hash;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.collections4.MapUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -69,7 +70,14 @@ public class CourseController {
         filter.setDepIds(depIds);
 
         PaginationResult<Course> result = courseService.paginate(page, size, filter);
-        return JsonResponse.data(result);
+
+        HashMap<String, Object> data = new HashMap<>();
+        data.put("data", result.getData());
+        data.put("total", result.getTotal());
+        data.put("category_count", courseService.getCategoryCount());
+        data.put("pure_total", courseService.total());
+
+        return JsonResponse.data(data);
     }
 
     @BackendPermissionMiddleware(slug = BPermissionConstant.COURSE)

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

@@ -77,6 +77,8 @@ public class ResourceController {
 
         HashMap<String, Object> data = new HashMap<>();
         data.put("result", result);
+        data.put("category_count", resourceService.getCategoryCount(type));
+        data.put("pure_total", resourceService.total(type));
 
         if (type.equals(BackendConstant.RESOURCE_TYPE_VIDEO)) {
             List<ResourceVideo> resourceVideos = resourceVideoService.chunksByRids(result.getData().stream().map(Resource::getId).toList());

src/main/java/xyz/playedu/api/mapper/CourseMapper.java

@@ -3,6 +3,9 @@ package xyz.playedu.api.mapper;
 import org.apache.ibatis.annotations.Mapper;
 import xyz.playedu.api.domain.Course;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import xyz.playedu.api.types.mapper.CourseCategoryCountMapper;
+
+import java.util.List;
 
 /**
 * @author tengteng
@@ -13,6 +16,8 @@ import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 @Mapper
 public interface CourseMapper extends BaseMapper<Course> {
 
+    List<CourseCategoryCountMapper> getCategoryCount();
+
 }
 
 

src/main/java/xyz/playedu/api/mapper/ResourceMapper.java

@@ -3,18 +3,25 @@ package xyz.playedu.api.mapper;
 import org.apache.ibatis.annotations.Mapper;
 import xyz.playedu.api.domain.Resource;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import xyz.playedu.api.types.mapper.ResourceCategoryCountMapper;
+
+import java.util.List;
+import java.util.Map;
 
 /**
-* @author tengteng
-* @description 针对表【resources】的数据库操作Mapper
-* @createDate 2023-03-13 10:25:30
-* @Entity xyz.playedu.api.domain.Resource
-*/
+ * @author tengteng
+ * @description 针对表【resources】的数据库操作Mapper
+ * @createDate 2023-03-13 10:25:30
+ * @Entity xyz.playedu.api.domain.Resource
+ */
 @Mapper
 public interface ResourceMapper extends BaseMapper<Resource> {
 
+    List<ResourceCategoryCountMapper> getCategoryCount(String type);
+
 }
 
 
 
 
+

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

@@ -7,6 +7,7 @@ import xyz.playedu.api.types.paginate.CoursePaginateFiler;
 import xyz.playedu.api.types.paginate.PaginationResult;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * @author tengteng
@@ -42,4 +43,8 @@ public interface CourseService extends IService<Course> {
     List<Course> chunks(List<Integer> ids, List<String> fields);
 
     List<Course> chunks(List<Integer> ids);
+
+    Map<Integer, Integer> getCategoryCount();
+
+    Integer total();
 }

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

@@ -7,6 +7,7 @@ import xyz.playedu.api.types.paginate.PaginationResult;
 import xyz.playedu.api.types.paginate.ResourcePaginateFilter;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * @author tengteng
@@ -29,4 +30,7 @@ public interface ResourceService extends IService<Resource> {
 
     List<Resource> chunks(List<Integer> ids, List<String> fields);
 
+    Map<Integer, Integer> getCategoryCount(String type);
+
+    Integer total(String type);
 }

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

@@ -15,14 +15,13 @@ import xyz.playedu.api.service.CourseService;
 import xyz.playedu.api.mapper.CourseMapper;
 import org.springframework.stereotype.Service;
 import xyz.playedu.api.service.internal.ResourceCourseCategoryService;
+import xyz.playedu.api.types.mapper.CourseCategoryCountMapper;
 import xyz.playedu.api.types.paginate.CoursePaginateFiler;
 import xyz.playedu.api.types.paginate.PaginationResult;
 import xyz.playedu.api.util.HelperUtil;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.List;
+import java.util.*;
+import java.util.stream.Collectors;
 
 /**
  * @author tengteng
@@ -208,6 +207,16 @@ public class CourseServiceImpl extends ServiceImpl<CourseMapper, Course> impleme
     public List<Course> chunks(List<Integer> ids) {
         return list(query().getWrapper().in("id", ids));
     }
+
+    @Override
+    public Map<Integer, Integer> getCategoryCount() {
+        return getBaseMapper().getCategoryCount().stream().collect(Collectors.toMap(CourseCategoryCountMapper::getCid, CourseCategoryCountMapper::getTotal));
+    }
+
+    @Override
+    public Integer total() {
+        return Math.toIntExact(count());
+    }
 }
 
 

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

@@ -14,15 +14,14 @@ import xyz.playedu.api.mapper.ResourceMapper;
 import org.springframework.stereotype.Service;
 import xyz.playedu.api.service.ResourceVideoService;
 import xyz.playedu.api.service.internal.ResourceCategoryRelationService;
+import xyz.playedu.api.types.mapper.ResourceCategoryCountMapper;
 import xyz.playedu.api.types.paginate.PaginationResult;
 import xyz.playedu.api.types.paginate.ResourcePaginateFilter;
 import xyz.playedu.api.util.HelperUtil;
 
 import java.lang.reflect.Array;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.List;
+import java.util.*;
+import java.util.stream.Collectors;
 
 /**
  * @author tengteng
@@ -155,6 +154,16 @@ public class ResourceServiceImpl extends ServiceImpl<ResourceMapper, Resource> i
     public List<Resource> chunks(List<Integer> ids, List<String> fields) {
         return list(query().getWrapper().in("id", ids).select(fields));
     }
+
+    @Override
+    public Map<Integer, Integer> getCategoryCount(String type) {
+        return getBaseMapper().getCategoryCount(type).stream().collect(Collectors.toMap(ResourceCategoryCountMapper::getCid, ResourceCategoryCountMapper::getTotal));
+    }
+
+    @Override
+    public Integer total(String type) {
+        return Math.toIntExact(count(query().getWrapper().eq("type", type)));
+    }
 }
 
 

src/main/java/xyz/playedu/api/types/mapper/CourseCategoryCountMapper.java

@@ -0,0 +1,16 @@
+package xyz.playedu.api.types.mapper;
+
+import lombok.Data;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/15 11:18
+ */
+@Data
+public class CourseCategoryCountMapper {
+
+    private Integer cid;
+
+    private Integer total;
+
+}

src/main/java/xyz/playedu/api/types/mapper/ResourceCategoryCountMapper.java

@@ -0,0 +1,16 @@
+package xyz.playedu.api.types.mapper;
+
+import lombok.Data;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/15 11:11
+ */
+@Data
+public class ResourceCategoryCountMapper {
+
+    private Integer cid;
+
+    private Integer total;
+
+}

src/main/resources/mapper/CourseMapper.xml

@@ -17,8 +17,14 @@
     </resultMap>
 
     <sql id="Base_Column_List">
-        id,title,thumb,
-        charge,class_hour,is_show,
+        id,title,thumb,
+        charge,class_hour,is_show,
         created_at,updated_at,deleted_at
     </sql>
+
+    <select id="getCategoryCount" resultType="xyz.playedu.api.types.mapper.CourseCategoryCountMapper">
+        SELECT `resource_course_category`.`cid` as `cid`, count(*) as `total`
+        FROM `resource_course_category`
+        GROUP BY `resource_course_category`.`category_id`;
+    </select>
 </mapper>

src/main/resources/mapper/ResourceMapper.xml

@@ -21,10 +21,19 @@
     </resultMap>
 
     <sql id="Base_Column_List">
-        id,admin_id,type,
-        name,extension,size,
-        disk,file_id,path,
-        url,created_at,parent_id,
+        id,admin_id,type,
+        name,extension,size,
+        disk,file_id,path,
+        url,created_at,parent_id,
         is_hidden
     </sql>
+
+    <select id="getCategoryCount" resultType="xyz.playedu.api.types.mapper.ResourceCategoryCountMapper">
+        SELECT `resource_category`.`cid` as `cid`, count(*) as `total`
+        FROM `resources`
+                 INNER JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
+        WHERE `resources`.`type` = #{type}
+        GROUP BY `resource_category`.`cid`;
+    </select>
+
 </mapper>