How to Check Record Type in a Loop?

Question

Id RTId = Schema.SObjectType.Custom_Object__c.getRecordTypeInfosByName().get('Record Type Name').getRecordTypeId();

However, I can’t access the record type ID of LinkedEntityId directly in the loop. I tried:

if (cd.LinkedEntityId.getRecordTypeId() !== RTId) { ... }

But I get the error:
“Method does not exist or incorrect signature: void getRecordTypeId() from the type Id.”

How can I correctly retrieve and compare the record type ID in this scenario?

Answer

Since the system does not allow you to directly traverse the LinkedEntityId relationship in ContentDocumentLink, you need to take multiple steps to achieve your goal. You cannot access getRecordTypeId() on an ID because LinkedEntityId is just an ID, not an actual record with fields.

1. Collect the LinkedEntity IDs
   Iterate through the ContentDocumentLink records and collect the LinkedEntityId values.
2. Query the Custom Object for Record Type Information
   Perform a query on the custom object to retrieve only the records with the required record type.
3. Use a Set to Compare IDs Efficiently
   Store the IDs of records with the desired record type in a Set<Id>, then compare against this set in your for loop.

Here’s the correct way to implement this:

trigger ContentDocumentLinkTrigger on ContentDocumentLink (after insert) {
    // Step 1: Store Record Type ID for comparison
    Id RTId = Schema.SObjectType.Custom_Object__c.getRecordTypeInfosByName().get('Record Type Name').getRecordTypeId();

    // Step 2: Collect LinkedEntityId values
    Set<Id> linkedEntityIds = new Set<Id>();
    for (ContentDocumentLink cd : Trigger.new) {
        linkedEntityIds.add(cd.LinkedEntityId);
    }

    // Step 3: Query the custom object for records with the matching record type
    Set<Id> validEntityIds = new Set<Id>();
    for (Custom_Object__c obj : [SELECT Id FROM Custom_Object__c WHERE RecordTypeId = :RTId AND Id IN :linkedEntityIds]) {
        validEntityIds.add(obj.Id);
    }

    // Step 4: Iterate again and perform the conditional check
    for (ContentDocumentLink cd : Trigger.new) {
        if (validEntityIds.contains(cd.LinkedEntityId)) {
            PAIds.add(cd.LinkedEntityId);
            documentIds.add(cd.Id);
        }
    }
}

This ContentDocumentLinkTrigger is an after-insert trigger designed to check the record type of a related custom object (Custom_Object__c) for each ContentDocumentLink record and perform some logic based on that. Here’s a breakdown of the code:

1. Store Record Type ID for Comparison:
   The trigger starts by retrieving the Record Type ID for the custom object Custom_Object__c with the name 'Record Type Name' using the getRecordTypeInfosByName() method. This ID (RTId) will be used for comparison later.
2. Collect LinkedEntityId Values:
   The trigger collects all the LinkedEntityId values from the newly inserted ContentDocumentLink records (from Trigger.new) into a set called linkedEntityIds. This set ensures that only unique LinkedEntityId values are considered in the next step.
3. Query the Custom Object for Records with the Matching Record Type:
   The trigger then queries Custom_Object__c records that have the same RecordTypeId (matching RTId) and whose IDs are in the linkedEntityIds set. It stores these valid Custom_Object__c record IDs in the validEntityIds set.
4. Perform the Conditional Check and Add Matching IDs to Collections:
   Finally, the trigger iterates through the ContentDocumentLink records again and checks if their LinkedEntityId exists in the validEntityIds set. If it does, the LinkedEntityId and the ContentDocumentLink ID are added to the PAIds and documentIds collections, respectively.

This approach ensures that only ContentDocumentLink records linked to Custom_Object__c records with the specific record type are processed. The IDs of those records are added to collections (PAIds, documentIds) for further use. Make sure that PAIds and documentIds are declared as Set<Id> before the trigger logic.

Job-Oriented Salesforce Course with Real-Time Projects and Money Back Guarantee

Our Salesforce Course is designed to provide you with a deep understanding of the Salesforce platform, equipping you with the essential skills to succeed in the CRM field. The program covers important modules such as Salesforce Admin, Developer, and AI, blending theory with hands-on practice. You’ll gain practical experience through real-world projects and assignments, enabling you to solve complex business challenges using Salesforce solutions. Our expert instructors ensure that you gain both technical proficiency and relevant industry knowledge to thrive within the Salesforce ecosystem.

Beyond technical skills, our Salesforce training in India offers personalized mentorship, exam preparation, and interview coaching to enhance your career prospects. You’ll have access to comprehensive study materials, live project experience, and dedicated support throughout your learning journey. Upon completing the course, you’ll be fully prepared for certification exams and equipped with the problem-solving skills that employers seek. Start your Salesforce journey with us and unlock a world of career opportunities. Enroll for a Free Demo now!