CRM 2011 +自定义工作流程以获取具有指定角色的用户

Question

Hi i am totally new to crm2011. i need to write a custom workflow.

To do the following things -

 1)I want to pass Role Name as "Manager" or something
 2)and on the basis of Role Name a user should be returned who is assigned that role.

From what i have understood is i need to join the below 3 tables -

System user
System user roles
Roleset

After searching a lot on how to create a workflow i have landed with this -

class GetUserRole:CodeActivity
{
     [Output("Current User")]
     [ReferenceTarget("systemuser")]
     public OutArgument<EntityReference> CurrentUser { get; set; }
     string securityrole ="Manager";

     protected override void Execute(CodeActivityContext Execution)
     {

       IWorkflowContext context = Execution.GetExtension<IWorkflowContext>();
       IOrganizationServiceFactory serviceFactory =
                        Execution.GetExtension<IOrganizationServiceFactory>();

       IOrganizationServiceservice=
             serviceFactory.CreateOrganizationService(context.InitiatingUserId);

       var entity = organizationService.Retrieve("systemuser",context.PrimaryEntityId,new ColumnSet(new String [] {"systemuserid", "firstname", "lastname"}));

      //Here i need to add the logic to fetch the user from the system with the mentioned role

     //set Current user to the returned value (User)
     }

What i need is similar to below fetchxml query but i am not understanding how should i use it in my code since i am not very familiar with the custom workflow syntax

 <fetch mapping="logical" count="50" version="1.0">
 <entity name="systemuser">
 <attribute name="fullname" />
 <link-entity name="systemuserroles" from="systemuserid" to="systemuserid">
  <link-entity name="role" from="roleid" to="roleid">
    <filter>
      <condition attribute="name" operator="eq" value="salesperson" />
    </filter>
  </link-entity>
</link-entity>

Or i found this code also but could not make it useful in my case

QueryExpression query = new QueryExpression("systemuser");

query.ColumnSet = new ColumnSet(new string[] { "systemuserid" });
query.Distinct = true;
query.Criteria = new FilterExpression();
query.Criteria.AddCondition("businessunitid", ConditionOperator.Equal,  ((EntityReference)entity.Attributes["new_unit"]).Id);
query.AddLink("systemuserroles", "systemuserid", "systemuserid").
AddLink("role","roleid", "roleid").
    LinkCriteria.AddCondition("name", ConditionOperator.Equal, "MyRoleName");

var users = organizationService.RetrieveMultiple(query);

Please if anybody could guide me with this. i am totally lost.

Answer 1

Here is how to do the search, if you don't care about Business Unit (ie, you only are using one Business Unit.) You'll need to change the return statement to set the Output parameter CodeActivity.Execute is a void method.

string roleName = "System Administrator";

QueryExpression query = new QueryExpression("systemuser");

query.ColumnSet = new ColumnSet(new string[] { "systemuserid" });
query.Distinct = true;
query.Criteria = new FilterExpression();
query.AddLink("systemuserroles", "systemuserid", "systemuserid").
AddLink("role","roleid", "roleid").LinkCriteria.AddCondition("name", ConditionOperator.Equal, roleName);

var users = organizationService.RetrieveMultiple(query);

if (users.Entities.Count() > 0) return ((Entity)users[0]).ToEntityReference();