/// <summary>
/// 签出指定节点
/// </summary>
internal static async Task <CheckoutResult> CheckoutAsync(List <CheckoutInfo> checkoutInfos)
{
if (checkoutInfos == null || checkoutInfos.Count == 0)
{
return(null);
}
//尝试向存储插入签出信息
var model = await RuntimeContext.Current.GetModelAsync <EntityModel>(Consts.SYS_CHECKOUT_MODEL_ID);
#if FUTURE
var txn = await Transaction.BeginAsync();
#else
using var conn = await SqlStore.Default.OpenConnectionAsync();
using var txn = conn.BeginTransaction();
#endif
try
{
for (int i = 0; i < checkoutInfos.Count; i++)
{
var info = checkoutInfos[i];
var obj = new Entity(model);
obj.SetByte(Consts.CHECKOUT_NODETYPE_ID, (byte)info.NodeType);
obj.SetString(Consts.CHECKOUT_TARGETID_ID, info.TargetID);
obj.SetGuid(Consts.CHECKOUT_DEVELOPERID_ID, info.DeveloperOuid);
obj.SetString(Consts.CHECKOUT_DEVELOPERNAME_ID, info.DeveloperName);
obj.SetInt32(Consts.CHECKOUT_VERSION_ID, (int)info.Version);
#if FUTURE
await EntityStore.InsertEntityAsync(obj, txn);
await txn.CommitAsync();
#else
await SqlStore.Default.InsertAsync(obj, txn);
txn.Commit();
#endif
}
}
catch (Exception)
{
txn.Rollback();
return(new CheckoutResult(false));
}
//检查签出单个模型时，存储有无新版本
CheckoutResult result = new CheckoutResult(true);
if (checkoutInfos[0].IsSingleModel)
{
var storedModel = await ModelStore.LoadModelAsync(ulong.Parse(checkoutInfos[0].TargetID));
if (storedModel.Version != checkoutInfos[0].Version)
{
result.ModelWithNewVersion = storedModel;
}
}
return(result);
}
/// <summary>
/// 目前仅支持签出ModelRootNode及ModelNode
/// </summary>
public virtual async Task <bool> Checkout() //TODO:考虑加入参数允许签出所有下属节点
{
//判断是否已签出或者能否签出
if (!AllowCheckout)
{
return(false);
}
if (IsCheckoutByMe)
{
return(true);
}
//调用签出服务
List <CheckoutInfo> infos = new List <CheckoutInfo>();
CheckoutInfo info = new CheckoutInfo(NodeType, CheckoutInfoTargetID, Version,
DesignTree.DesignHub.Session.Name,
DesignTree.DesignHub.Session.LeafOrgUnitID);
infos.Add(info);
CheckoutResult result = await CheckoutService.CheckoutAsync(infos);
if (result.Success)
{
//签出成功则将请求的签出信息添加至当前的已签出列表
DesignTree.AddCheckoutInfos(infos);
//如果签出的是单个模型，且具备更新的版本，则更新
if (this is ModelNode modelNode && result.ModelWithNewVersion != null)
{
modelNode.Model = result.ModelWithNewVersion; //替换旧模型
await DesignTree.DesignHub.TypeSystem.UpdateModelDocumentAsync(modelNode); //更新为新模型的RoslynDocument
}
//更新当前节点的签出信息
CheckoutInfo = infos[0];
}
return(result.Success);
}