Code to find whether the role is assigned to User

How to find whether the role is assigned to User or not :

Class\SalesTableListPageInteraction\setButtonSell() method.

               while select User, SecurityRole from t1 

        join company from t2 where t2.id == t1.User

        join Name from t3 where t1.SecurityRole == t3.RecId &&

           t1.User == curUserId() &&         

           t2.company == curext()

          

    {

        if(t3.name == "Sales manager" && salestable.DocumentStatus == DocumentStatus::Confirmation)

            allowUpdate = false;

        else

            allowUpdate = true;

       // info(strFmt("%1,%2,%3",t1.User,t1.SecurityRole, t3.Name));

    }

   

    this.listPage().actionPaneControlEnabled(formControlStr(SalesTableListPage, EditButton),        allowUpdate);