feat: 删除角色功能

src/main/java/com/onixbyte/helix/controller/RoleController.java

@@ -45,4 +45,10 @@ public class RoleController {
         roleService.editRole(request);
         return ResponseEntity.ok(null);
     }
+
+    @DeleteMapping("/{id:\\d+}")
+    public ResponseEntity<Void> deleteRole(@PathVariable Long id) {
+        roleService.deleteRole(id);
+        return ResponseEntity.ok(null);
+    }
 }

src/main/java/com/onixbyte/helix/manager/RoleAuthorityManager.java

@@ -0,0 +1,22 @@
+package com.onixbyte.helix.manager;
+
+import com.onixbyte.helix.repository.RoleAuthorityRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+public class RoleAuthorityManager {
+
+    private static final Logger log = LoggerFactory.getLogger(RoleAuthorityManager.class);
+    private final RoleAuthorityRepository roleAuthorityRepository;
+
+    public RoleAuthorityManager(RoleAuthorityRepository roleAuthorityRepository) {
+        this.roleAuthorityRepository = roleAuthorityRepository;
+    }
+
+    public void deleteByRoleId(Long roleId) {
+        var affectedRows = roleAuthorityRepository.deleteByRoleId(roleId);
+        log.info("角色 {} 关联的权限绑定已全部移除（共 {} 条）", roleId, affectedRows);
+    }
+}

src/main/java/com/onixbyte/helix/manager/RoleManager.java

@@ -3,6 +3,7 @@ package com.onixbyte.helix.manager;
 import com.onixbyte.helix.domain.database.query.wrapper.QueryRoleWrapper;
 import com.onixbyte.helix.domain.entity.Role;
 import com.onixbyte.helix.exception.BizException;
+import com.onixbyte.helix.mapper.RoleAuthorityMapper;
 import com.onixbyte.helix.mapper.RoleMapper;
 import com.onixbyte.helix.repository.RoleRepository;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -19,11 +20,13 @@ public class RoleManager {
 
     private final RoleMapper roleMapper;
     private final RoleRepository roleRepository;
+    private final RoleAuthorityMapper roleAuthorityMapper;
 
     @Autowired
-    public RoleManager(RoleMapper roleMapper, RoleRepository roleRepository) {
+    public RoleManager(RoleMapper roleMapper, RoleRepository roleRepository, RoleAuthorityMapper roleAuthorityMapper) {
         this.roleMapper = roleMapper;
         this.roleRepository = roleRepository;
+        this.roleAuthorityMapper = roleAuthorityMapper;
     }
 
     public void validateRoles(List<Long> roleIds) {
@@ -70,4 +73,8 @@ public class RoleManager {
         Optional.ofNullable(role.getStatus())
                 .ifPresent(roleToUpdate::setStatus);
     }
+
+    public void deleteRole(Long id) {
+        roleRepository.deleteById(id);
+    }
 }

src/main/java/com/onixbyte/helix/manager/UserRoleManager.java

@@ -1,6 +1,7 @@
 package com.onixbyte.helix.manager;
 
 import com.onixbyte.helix.domain.entity.UserRole;
+import com.onixbyte.helix.domain.entity.embeddable.UserRoleId;
 import com.onixbyte.helix.mapper.UserRoleMapper;
 import com.onixbyte.helix.repository.UserRoleRepository;
 import org.slf4j.Logger;
@@ -31,4 +32,9 @@ public class UserRoleManager {
         var affectedRows = userRoleRepository.deleteByUserId(userId);
         log.info("用户 {} 的角色关联被全部移除（共 {} 条）。", userId, affectedRows);
     }
+
+    public void deleteByRoleId(Long roleId) {
+        var affectedRows = userRoleRepository.deleteByRoleId(roleId);
+        log.info("角色 {} 的用户关联被全部移除（共 {} 条）。", roleId, affectedRows);
+    }
 }

src/main/java/com/onixbyte/helix/mapper/RoleAuthorityMapper.java

@@ -0,0 +1,10 @@
+package com.onixbyte.helix.mapper;
+
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+@Mapper
+public interface RoleAuthorityMapper {
+
+    int deleteByRoleId(@Param("roleId") Long roleId);
+}

src/main/java/com/onixbyte/helix/repository/RoleAuthorityRepository.java

@@ -3,8 +3,13 @@ package com.onixbyte.helix.repository;
 import com.onixbyte.helix.domain.entity.RoleAuthority;
 import com.onixbyte.helix.domain.entity.embeddable.RoleAuthorityId;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 
 @Repository
 public interface RoleAuthorityRepository extends JpaRepository<RoleAuthority, RoleAuthorityId> {
+    @Modifying
+    @Query("DELETE FROM RoleAuthority ra WHERE ra.id.roleId = :roleId")
+    int deleteByRoleId(Long roleId);
 }

src/main/java/com/onixbyte/helix/repository/UserRoleRepository.java

@@ -13,4 +13,8 @@ public interface UserRoleRepository extends JpaRepository<UserRole, UserRoleId>
     @Modifying
     @Query("DELETE FROM UserRole ur WHERE ur.id.userId = :userId")
     int deleteByUserId(Long userId);
+
+    @Modifying
+    @Query("DELETE FROM UserRole ur WHERE ur.id.roleId = :roleId")
+    int deleteByRoleId(Long roleId);
 }

src/main/java/com/onixbyte/helix/service/RoleService.java

@@ -6,7 +6,10 @@ import com.onixbyte.helix.domain.entity.Role;
 import com.onixbyte.helix.domain.web.request.AddRoleRequest;
 import com.onixbyte.helix.domain.web.request.EditRoleRequest;
 import com.onixbyte.helix.domain.web.request.QueryRoleRequest;
+import com.onixbyte.helix.manager.RoleAuthorityManager;
 import com.onixbyte.helix.manager.RoleManager;
+import com.onixbyte.helix.manager.UserRoleManager;
+import com.onixbyte.helix.repository.UserRoleRepository;
 import jakarta.transaction.Transactional;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -20,10 +23,18 @@ import java.util.Optional;
 public class RoleService {
 
     private final RoleManager roleManager;
+    private final RoleAuthorityManager roleAuthorityManager;
+    private final UserRoleManager userRoleManager;
 
     @Autowired
-    public RoleService(RoleManager roleManager) {
+    public RoleService(
+            RoleManager roleManager,
+            RoleAuthorityManager roleAuthorityManager,
+            UserRoleManager userRoleManager
+    ) {
         this.roleManager = roleManager;
+        this.roleAuthorityManager = roleAuthorityManager;
+        this.userRoleManager = userRoleManager;
     }
 
     public Page<Role> getRoles(Pageable pageable, QueryRoleRequest request) {
@@ -78,4 +89,11 @@ public class RoleService {
                         .orElse(null))
                 .build());
     }
+
+    @Transactional
+    public void deleteRole(Long id) {
+        roleAuthorityManager.deleteByRoleId(id);
+        userRoleManager.deleteByRoleId(id);
+        roleManager.deleteRole(id);
+    }
 }

src/main/resources/mapper/RoleAuthorityMapper.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.onixbyte.helix.mapper.RoleAuthorityMapper">
+    <delete id="deleteByRoleId" parameterType="long">
+        DELETE
+        FROM role_authorities
+        WHERE role_id = #{roleId}
+    </delete>
+</mapper>