public async Task <object> Handle(DesignHub hub, InvokeArgs args)
{
var modelId = args.GetString();
var changeType = args.GetString();
var node = hub.DesignTree.FindNode(DesignNodeType.EntityModelNode, modelId);
if (node == null)
{
throw new Exception("Can't find entity model node");
}
var modelNode = node as ModelNode;
var model = modelNode.Model as EntityModel;
if (!modelNode.IsCheckoutByMe)
{
throw new Exception("Node has not checkout");
}
//注意某些操作需要更新RoslynDocument
switch (changeType)
{
case "PrimaryKeys":
if (model.PersistentState != PersistentState.Detached)
{
//TODO:如果是修改则必须查找服务方法内的引用，签出节点并修改
//1. new XXXX(pks)改为new XXX(/*fix pk changed*/)
//2. Entities.XXX.LoadAsync(pks)同上
throw new NotImplementedException("改变主键尚未实现");
}
ChangePrimaryKeys(model, args.GetString());
await hub.TypeSystem.UpdateModelDocumentAsync(modelNode);
//TODO:同时返回签出列表
break;
case "PartitionKeys":
ChangePartitionKeys(model, args.GetString());
if (model.SysStoreOptions != null) //仅SysStore需要更新RoslynDocument
{
await hub.TypeSystem.UpdateModelDocumentAsync(modelNode);
}
break;
case "ClusteringColumns":
ChangeClusteringColumns(model, args.GetString());
break;
case "AddIndex":
var res = AddIndex(model, args.GetString());
await hub.TypeSystem.UpdateModelDocumentAsync(modelNode);
return(res);
case "RemoveIndex":
await RemoveIndex(hub, modelNode.AppNode.Model.Name, model, args.GetByte());
await hub.TypeSystem.UpdateModelDocumentAsync(modelNode);
break;
default:
throw new NotSupportedException(changeType);
}
return(null);
}