/// <summary>
/// 添加用户角色。
/// </summary>
/// <param name="role">用户角色实例。</param>
/// <param name="cancellationToken">取消标识。</param>
/// <returns>返回角色添加结果。</returns>
public override async Task <IdentityResult> CreateAsync(TRole role, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
if (role == null)
{
throw new ArgumentNullException(nameof(role));
}
role.RoleLevel = await GetMaxRoleLevelAsync(role) + 1;//获取当前角色等级
// ReSharper disable once SuspiciousTypeConversion.Global
if (role is IRoleEventHandler <TRole> handler)
{
if (await RoleContext.BeginTransactionAsync(async db =>
{
if (!await db.CreateAsync(role, cancellationToken))
{
return(false);
}
if (!await handler.OnCreatedAsync(db, cancellationToken))
{
return(false);
}
return(true);
}, cancellationToken: cancellationToken))
{
return(IdentityResult.Success);
}
}
else if (await RoleContext.CreateAsync(role, cancellationToken))
{
return(IdentityResult.Success);
}
return(IdentityResult.Failed(ErrorDescriber.DefaultError()));
}
/// <summary>
/// 下移角色。
/// </summary>
/// <param name="role">角色实例。</param>
/// <param name="cancellationToken">取消标识。</param>
/// <returns>返回移动结果。</returns>
public virtual async Task <bool> MoveDownAsync(TRole role, CancellationToken cancellationToken = default)
{
if (role == null)
{
throw new ArgumentNullException(nameof(role));
}
// ReSharper disable once SuspiciousTypeConversion.Global
if (role is IRoleEventHandler <TRole> handler)
{
return(await RoleContext.BeginTransactionAsync(async db =>
{
if (!await db.MoveDownAsync(role.Id, x => x.RoleLevel, MoveExpression(role), cancellationToken))
{
return false;
}
if (!await handler.OnUpdateAsync(db, cancellationToken))
{
return false;
}
return true;
}, cancellationToken : cancellationToken));
}
return(await RoleContext.MoveDownAsync(role.Id, x => x.RoleLevel, MoveExpression(role), cancellationToken));
}