/// <summary>
/// 上一个执行跳转节点
/// </summary>
/// <returns></returns>
public WorkflowNode GetFromNode()
{
if (FromTransition == null)
{
return(null);
}
ASTNode node = GetNode(FromTransition.Origin);
return(WorkflowNode.ConvertToReallyType(node));
}
/// <summary>
/// 撤销
/// </summary>
/// <param name="context"></param>
public void Cancel(WorkflowContext context)
{
WorkflowInstance instance = context.Instance;
if (instance.State == WorkflowInstanceState.Running)
{
WorkflowNode current = instance.Current.GetFromNode();
context.SetOperation(WorkflowAction.Undo);
if (CheckAuthorization(context) == false)
{
return;
}
//记录已经参与审批过的人信息
current.SetActor(context.ActorID, context.ActorName, WorkflowAction.Undo);
instance.Jump(current.IDENTIFICATION);
ASTNode to = current.GetNode(current.IDENTIFICATION);
OnExecuteProcess(new ExecutingContext()
{
From = current,
To = to,
TransitionID = instance.Current.FromTransition.NID,
Instance = instance,
Data = context.Data,
Operation = context.Operation,
ActorID = context.ActorID,
ActorName = context.ActorName
});
if (to.NodeType == WorkflowNodeCategeory.Decision)
{
WorkflowNode wfDecision = WorkflowNode.ConvertToReallyType(to);
Transition transition = wfDecision.FromTransition;
if (transition == null)
{
return;
}
Cancel(new WorkflowContext()
{
Instance = WorkflowInstance.GetInstance(instance.InstanceID),
ActorID = context.ActorID,
Data = context.Data
});
}
}
}
private List <IWorkflowAction> GetWorkflowActions(ASTNode to)
{
List <IWorkflowAction> partAction = new List <IWorkflowAction>();
WorkflowNode nodes = WorkflowNode.ConvertToReallyType(to);
nodes.Actions.ForEach(el =>
{
IWorkflowAction defaultAction = this.Scan(el.ID);
if (defaultAction != null)
{
partAction.Add(defaultAction);
}
});
return(partAction);
}
/// <summary>
/// 获取流程实例
/// </summary>
/// <param name="instanceID">实例ID</param>
/// <returns>流程实例</returns>
public static WorkflowInstance GetInstance(string instanceID)
{
WorkflowInstance workflowInstance = new WorkflowInstance();
workflowInstance.InstanceID = instanceID;
string sql = ResourceManage.GetString(ResourceManage.SQL_WORKFLOW_INSTANCE);
try
{
workflowInstance = workflowInstance.Connection.Query <WorkflowInstance, ASTNode, WorkflowInstance>(sql, (instance, node) =>
{
instance.Current = WorkflowNode.ConvertToReallyType(node);
return(instance);
}, param: new { INSTANCEID = instanceID }, splitOn: "APPELLATION").FirstOrDefault <WorkflowInstance>();
return(workflowInstance);
}
catch (Exception ex)
{
throw new WorkflowException(ex, instanceID);
}
}