first commit

app/main/api/internal/logic/admin_role/deleterolelogic.go

@@ -0,0 +1,84 @@
+package admin_role
+
+import (
+	"context"
+
+	"hm-server/app/main/api/internal/svc"
+	"hm-server/app/main/api/internal/types"
+	"hm-server/app/main/model"
+	"hm-server/common/xerr"
+
+	"github.com/pkg/errors"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stores/sqlx"
+)
+
+type DeleteRoleLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewDeleteRoleLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteRoleLogic {
+	return &DeleteRoleLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *DeleteRoleLogic) DeleteRole(req *types.DeleteRoleReq) (resp *types.DeleteRoleResp, err error) {
+	// 检查角色是否存在
+	_, err = l.svcCtx.AdminRoleModel.FindOne(l.ctx, req.Id)
+	if err != nil {
+		if errors.Is(err, model.ErrNotFound) {
+			return nil, errors.Wrapf(xerr.NewErrMsg("角色不存在"), "删除角色失败, 角色不存在err: %v", err)
+		}
+		return nil, err
+	}
+
+	// 使用事务删除角色和关联数据
+	err = l.svcCtx.AdminRoleModel.Trans(l.ctx, func(ctx context.Context, session sqlx.Session) error {
+		// 删除角色菜单关联
+		builder := l.svcCtx.AdminRoleMenuModel.SelectBuilder().
+			Where("role_id = ?", req.Id)
+		menus, err := l.svcCtx.AdminRoleMenuModel.FindAll(ctx, builder, "id ASC")
+		if err != nil {
+			return err
+		}
+		for _, menu := range menus {
+			err = l.svcCtx.AdminRoleMenuModel.Delete(ctx, session, menu.Id)
+			if err != nil {
+				return err
+			}
+		}
+
+		// 删除角色用户关联
+		builder = l.svcCtx.AdminUserRoleModel.SelectBuilder().
+			Where("role_id = ?", req.Id)
+		users, err := l.svcCtx.AdminUserRoleModel.FindAll(ctx, builder, "id ASC")
+		if err != nil {
+			return err
+		}
+		for _, user := range users {
+			err = l.svcCtx.AdminUserRoleModel.Delete(ctx, session, user.Id)
+			if err != nil {
+				return err
+			}
+		}
+
+		// 删除角色
+		err = l.svcCtx.AdminRoleModel.Delete(ctx, session, req.Id)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "删除角色失败err: %v", err)
+	}
+
+	return &types.DeleteRoleResp{
+		Success: true,
+	}, nil
+}