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최근에 Execute 메서드에서 CRM 개체를 가져오고 별도의 메서드로 플러그 인/워크 플로 비즈니스 논리를 수행하기 시작했습니다.
이 방법을 개선 (또는 삭제할 수 있습니까?
LINQ를 사용하여 워크 플로의 대상 레코드를 가져올 수 있습니까?
입력 매개 변수보다 더 편리합니다. 또한 워크 플로는 비동기 적이며 사용자 환경에 영향을 미치지 않습니다. 플러그인에서Microsoft Dynamics CRM 2011의 워크 플로 및 플러그인 모범 사례
:
public class AddEmailAttachments : IPlugin
{
private void AddAttachments(Entity target, IOrganizationService service, Context linq)
{
// Business logic
}
/*
* Get all the Objects that we need
* and call AddAttachments
* */
public void Execute(IServiceProvider serviceProvider)
{
IPluginExecutionContext context = null;
IOrganizationServiceFactory factory = null;
IOrganizationService service = null;
Entity target = null;
Context linq = null;
try // and get the services we need
{
context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));
factory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
service = factory.CreateOrganizationService(context.UserId);
target = (Entity)context.InputParameters["Target"];
linq = new Context(service);
if (service != null && target != null && linq != null)
AddAttachments(target, service, linq);
}
catch (Exception) { }; // this is strict because if this plugin fails then the email will not be created in CRM and disrupt the business process
}
}
워크 플로우 :
public class SendCaseNotifications : CodeActivity
{
/* Receives the necessary Objects and
* Sends the email
* */
private void SendNotifications(Incident incident, IOrganizationService service, Email email, Context linq)
{
// Perform business logic
}
/* Get the Objects that are required and call
* the method
* */
protected override void Execute(CodeActivityContext context)
{
IWorkflowContext workflowContext = context.GetExtension<IWorkflowContext>();
IOrganizationServiceFactory factory = context.GetExtension<IOrganizationServiceFactory>();
IOrganizationService service = factory.CreateOrganizationService(workflowContext.InitiatingUserId);
Entity target = workflowContext.InputParameters["Target"] as Entity;
Incident incident = null;
Email email = null;
Context linq = new Context(service);
IEnumerable<Incident> incidentQuery = from incidents in linq.IncidentSet where incidents.Id.Equals(target.Id) select incidents;
if (incidentQuery.Any())
incident = incidentQuery.First();
if (incident == null)
throw new InvalidPluginExecutionException("Unable to retrieve Case with id: " + target.Id.ToString() + ". Re-try the operation or contact the system administrator.");
IEnumerable<Email> emailQuery = from emails in linq.EmailSet where emails.Id.Equals(incident.mda_originatingemail.Id) select emails;
if (emailQuery.Any())
email = emailQuery.First();
if (email == null)
throw new InvalidPluginExecutionException("Unable to retrieve Email with id: " + incident.mda_originatingemail.Id.ToString() + ". Re-try the operation or contact the system administrator.");
SendNotifications(incident, service, email, linq);
}
}
I는 가능한 한 많은 예외 취급을 실행하고 실제 작업을 수행하는 방법에 객체를 전달한다.
최근에 동기식 플러그인이 예외를 throw하는 경우 비즈니스 프로세스에 영향을 줄 수있는 어려운 방법을 배웠습니다.
[CRM 2011 플러그인 작성을위한 최상의 디자인 패턴] (http://stackoverflow.com/questions/11097356/best-design-pattern-for-writing-crm-2011-plugins) – Daryl