feat: rbac完善，file接入完成

app/system/rpc/internal/logic/assignRoleMenusLogic.go

@@ -0,0 +1,44 @@
+package logic
+
+import (
+	"context"
+	"fmt"
+
+	sysModel "sundynix-micro-go/app/system/model"
+	"sundynix-micro-go/app/system/rpc/internal/svc"
+	"sundynix-micro-go/app/system/rpc/system"
+
+	"github.com/zeromicro/go-zero/core/logx"
+	"gorm.io/gorm"
+)
+
+type AssignRoleMenusLogic struct {
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+	logx.Logger
+}
+
+func NewAssignRoleMenusLogic(ctx context.Context, svcCtx *svc.ServiceContext) *AssignRoleMenusLogic {
+	return &AssignRoleMenusLogic{ctx: ctx, svcCtx: svcCtx, Logger: logx.WithContext(ctx)}
+}
+
+// AssignRoleMenus 给角色授权菜单（全量替换）
+func (l *AssignRoleMenusLogic) AssignRoleMenus(in *system.AssignRoleMenusReq) (*system.CommonResp, error) {
+	err := l.svcCtx.DB.Transaction(func(tx *gorm.DB) error {
+		// 先清除旧的菜单关联
+		if err := tx.Where("role_id = ?", in.RoleId).Delete(&sysModel.SundynixRoleMenu{}).Error; err != nil {
+			return fmt.Errorf("清除菜单关联失败: %w", err)
+		}
+		// 重新批量写入
+		for _, mid := range in.MenuIds {
+			if err := tx.Create(&sysModel.SundynixRoleMenu{RoleID: in.RoleId, MenuID: mid}).Error; err != nil {
+				return fmt.Errorf("关联菜单失败: %w", err)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &system.CommonResp{Code: 200, Msg: "success"}, nil
+}