public bool HasPermission(long userId, string permissionName)
{
using (var db = new WeixinDbContext())
{
CommonService <User> commonService = new CommonService <User>(db);
var user = commonService.GetAll().Include(u => u.Roles).
AsNoTracking().SingleOrDefault(u => u.Id == userId);
if (user == null)
{
throw new ArgumentException("找不到id=" + userId + "的用户");
}
/*每个Role都有一个Permissions属性
* Roles.SelectMany(r => r.Permissions)就是遍历Roles的每一个Role
* 然后把每个Role的Permissions放到一个集合中*/
var permissions = user.Roles.SelectMany(r => r.Permissions);
//有任何一个权限匹配，就返回true
return(permissions.Any(p => p.PermissionName == permissionName));
}
}
public async Task AddPermissonIds(long roleId, long[] permissionIds)
{
using (var db = new WeixinDbContext())
{
CommonService <Role> roleCs = new CommonService <Role>(db);
var role = await roleCs.GetById(roleId);
if (role == null)
{
throw new ArgumentException("该角色不存在");
}
CommonService <Permission> permissionCs = new CommonService <Permission>(db);
var permissions = await permissionCs.GetAll().
Where(p => permissionIds.Contains(p.Id)).ToArrayAsync();
foreach (var item in permissions)
{
role.Permissions.Add(item);
}
await db.SaveChangesAsync();
}
}
public async Task <long> AddNew(string permissionName, string description)
{
using (var db = new WeixinDbContext())
{
var entity = new Permission()
{
PermissionName = permissionName,
Description = description
};
CommonService <Permission> commonService = new CommonService <Permission>(db);
var exists = await commonService.GetAll().AnyAsync(p => p.PermissionName == permissionName);
if (exists)
{
throw new ArgumentException("改权限项已经存在");
}
db.Permission.Add(entity);
await db.SaveChangesAsync();
return(entity.Id);
}
}
public async Task AddRoleIds(long userId, long[] roleIds)
{
using (var db = new WeixinDbContext())
{
CommonService <User> userCs = new CommonService <User>(db);
var user = await userCs.GetById(userId);
if (user == null)
{
throw new ArgumentException("用户不存在" + userId);
}
CommonService <Role> roleCs = new CommonService <Role>(db);
//寻找数据库里的roleId和传入的roleId的交集
var roles = roleCs.GetAll().Where(r => roleIds.Contains(r.Id)).ToArray();
foreach (var role in roles)
{
user.Roles.Add(role);
}
await db.SaveChangesAsync();
}
}
public async Task <long> AddNew(string appId, string className, string handleName)
{
using (var db = new WeixinDbContext())
{
CommonService <HandlerConfig> service = new CommonService <HandlerConfig>(db);
var handelConfig = new HandlerConfig()
{
AppId = appId,
ClassName = className,
HandlerName = handleName
};
var exists = await service.GetAll().AnyAsync(s => s.AppId == appId);
if (exists)
{
throw new ArgumentException("该公众号appid已经存在");
}
db.HandlerConfig.Add(handelConfig);
await db.SaveChangesAsync();
return(handelConfig.Id);
}
}