/// <summary>
/// 检查设备添加或更新时的错误原因
/// </summary>
/// <param name="device">设备</param>
/// <param name="channels">通道集合</param>
/// <returns>数据校验结果</returns>
private ModelStateDictionary CheckError(DensityDevice device, List <DensityChannel> channels)
{
ModelStateDictionary modelState = new ModelStateDictionary();
if (_context.Devices.Count(d => d.Ip == device.Ip) > 0)
{
modelState.AddModelError("Ip", "设备IP重复");
}
if (channels != null)
{
List <int> indexes = channels.Select(c => c.ChannelIndex).Distinct().ToList();
if (indexes.Count < channels.Count)
{
modelState.AddModelError("ChannelIndex", "通道序号重复");
}
if (channels.Any(c => c.ChannelIndex <= 0))
{
modelState.AddModelError("ChannelIndex", "通道序号应该大于0");
}
foreach (DensityChannel newChannel in channels)
{
ModelStateDictionary channelModelState = ChannelsManager.CheckUpdateError(_context, newChannel);
if (channelModelState.IsValid)
{
if (_context.Device_Channels.Count(dc =>
dc.ChannelId == newChannel.ChannelId && dc.DeviceId != device.DeviceId) != 0)
{
modelState.AddModelError("ChannelId", $"通道 {newChannel.ChannelId} 已经关联在其他设备");
}
}
else
{
foreach (var(key, value) in channelModelState)
{
foreach (var error in value.Errors)
{
modelState.AddModelError(key, error.ErrorMessage);
}
}
}
}
}
return(modelState);
}
/// <summary>
/// 更新设备下的通道集合
/// </summary>
/// <param name="device">设备</param>
/// <param name="channels">通道集合</param>
private void UpdateChannels(DensityDevice device, List <DensityChannel> channels)
{
device.DensityDevice_DensityChannels = new List <DensityDevice_DensityChannel>();
if (channels != null)
{
foreach (var channel in channels)
{
DensityDevice_DensityChannel relation = new DensityDevice_DensityChannel
{
DeviceId = device.DeviceId,
ChannelId = channel.ChannelId
};
device.DensityDevice_DensityChannels.Add(relation);
if (!ChannelsManager.UpdateChannel(_context, channel))
{
ChannelsManager.AddChannel(_context, channel);
}
}
}
}