Apex code examples for blog post

BMCRF_IncidentTrigger.cls

/**
 * Written by Doug Ayers, https://communities.bmc.com/people/douglas.ayers%40fotlinc.com
 * Inspired by Paul Donders, https://communities.bmc.com/people/[email protected]
 * BMC Communities, https://communities.bmc.com/ideas/3039
 */
trigger BMCRF_IncidentTrigger on BMCServiceDesk__Incident__c ( before update ) {

    if ( Trigger.isBefore && Trigger.isUpdate ) {
        BMCRF_IncidentTriggerHelper.checkAndSetImpact( Trigger.new );
        BMCRF_IncidentTriggerHelper.checkAndSetUrgency( Trigger.new );
    }

}

BMCRF_IncidentTriggerHelper.cls

/**
 * Written by Doug Ayers, https://communities.bmc.com/people/douglas.ayers%40fotlinc.com
 * Inspired by Paul Donders, https://communities.bmc.com/people/[email protected]
 * BMC Communities, https://communities.bmc.com/ideas/3039
 */
public class BMCRF_IncidentTriggerHelper
{
    public static void checkAndSetImpact( List<BMCServiceDesk__Incident__c> incidents ) {

	    // get list of all active impacts
        List<BMCServiceDesk__Impact__c> impactList = new List<BMCServiceDesk__Impact__c>([
            SELECT id, name FROM BMCServiceDesk__Impact__c WHERE BMCServiceDesk__inactive__c = false
        ]);

        // convert list of impacts into a map so we can do look ups by impact name (eg, 'MEDIUM')
        Map<String, BMCServiceDesk__Impact__c> impactMap = new Map<String, BMCServiceDesk__Impact__c>();
        for ( BMCServiceDesk__Impact__c impact : impactList ) {
            impactMap.put( impact.name, impact );
        }

        // loop through each incident and check if its impact should be set
        for ( BMCServiceDesk__Incident__c incident : incidents ) {

            System.debug( 'Incident Impact: ' + incident.BMCServiceDesk__FKImpact__r );
            System.debug( 'Change Impact Controller: ' + incident.Change_Impact_Controller__c );

            if ( String.isNotBlank( incident.Change_Impact_Controller__c ) ) {

	            // get the impact reference from the map whose name matched the custom controller field's value
                BMCServiceDesk__Impact__c impact = impactMap.get( incident.Change_Impact_Controller__c );

                if ( impact != null ) {

                    System.debug( 'Changing impact to: ' + impact );

                    incident.BMCServiceDesk__FKImpact__c = impact.id;

                } else {

                    System.debug( LoggingLevel.WARN, 'Unknown impact to set: ' + incident.Change_Impact_Controller__c );

                }

                // clear the controller value so this code doesn't run again
                // unless the workflow rules reset the controller value
                incident.Change_Impact_Controller__c = null;

            }

        }

    }

    public static void checkAndSetUrgency( List<BMCServiceDesk__Incident__c> incidents ) {

	    // get list of all active urgencies
        List<BMCServiceDesk__Urgency__c> urgencyList = new List<BMCServiceDesk__Urgency__c>([
            SELECT id, name FROM BMCServiceDesk__Urgency__c WHERE BMCServiceDesk__inactive__c = false
        ]);

        // convert list of urgencies into a map so we can do look ups by urgency name (eg, 'MEDIUM')
        Map<String, BMCServiceDesk__Urgency__c> urgencyMap = new Map<String, BMCServiceDesk__Urgency__c>();
        for ( BMCServiceDesk__Urgency__c urgency : urgencyList ) {
            urgencyMap.put( urgency.name, urgency );
        }

        // loop through each incident and check if its urgency should be set
        for ( BMCServiceDesk__Incident__c incident : incidents ) {

            System.debug( 'Incident Urgency: ' + incident.BMCServiceDesk__FKUrgency__r );
            System.debug( 'Change Urgency Controller: ' + incident.Change_Urgency_Controller__c );

            if ( String.isNotBlank( incident.Change_Urgency_Controller__c ) ) {

				// get the urgency reference from the map whose name matched the custom controller field's value
                BMCServiceDesk__Urgency__c urgency = urgencyMap.get( incident.Change_Urgency_Controller__c );

                if ( urgency != null ) {

                    System.debug( 'Changing urgency to: ' + urgency );

                    incident.BMCServiceDesk__FKUrgency__c = urgency.id;

                } else {

                    System.debug( LoggingLevel.WARN, 'Unknown urgency to set: ' + incident.Change_Urgency_Controller__c );

                }

                // clear the controller value so this code doesn't run again
                // unless the workflow rules reset the controller value
                incident.Change_Urgency_Controller__c = null;

            }

        }

    }
}

BMCRF_IncidentTriggerHelperTest.cls

@isTest
private class BMCRF_IncidentTriggerHelperTest
{
    @isTest
    static void test_set_incident_impact_and_urgency() {

        BMCServiceDesk__Impact__c impact = new BMCServiceDesk__Impact__c();
        impact.name = 'MEDIUM';

        insert impact;

        BMCServiceDesk__Urgency__c urgency = new BMCServiceDesk__Urgency__c();
        urgency.name = 'MEDIUM';

        insert urgency;

        BMCServiceDesk__Category__c category = new BMCServiceDesk__Category__c();
        category.name = 'Test Category';
        category.BMCServiceDesk__AvailableForIncidents__c = true;

        insert category;

        BMCServiceDesk__Incident__c incident = new BMCServiceDesk__Incident__c();
        incident.BMCServiceDesk__incidentDescription__c = 'Test';
        incident.BMCServiceDesk__IncidentType__c = 'Incident';
        incident.BMCServiceDesk__FKCategory__c = category.id;
        incident.BMCServiceDesk__FKClient__c = UserInfo.getUserId();

        System.assert( incident.BMCServiceDesk__FKImpact__c == null );
        System.assert( incident.BMCServiceDesk__FKUrgency__c == null );

        Test.startTest();

        insert incident;

        Test.stopTest();

        incident = [ select id, BMCServiceDesk__Impact_Id__c, BMCServiceDesk__Urgency_Id__c from BMCServiceDesk__Incident__c where id = :incident.id ];

        System.assert( incident.BMCServiceDesk__Impact_Id__c == 'MEDIUM' );
        System.assert( incident.BMCServiceDesk__Urgency_Id__c == 'MEDIUM' );

    }

}