Apex: Retrieve the URL of a custom object setup detail

Question

I'm trying to get a list of all objects and the URLs that lead to their page in the Setup:

From the docs I'd expect the below to work but it returns:

"Expression of type Schema.DescribeSObjectResult has no member named urlDetail"

List < Schema.sObjectType > objectSchema = Schema.getGlobalDescribe().Values();

for (Schema.sObjectType obj: objectSchema) {
DescribeSObjectResult describe = obj.getDescribe();

System.debug(describe.urlDetail);

}

Answer 1

You can actually query EntityDefinition to get the information you want. However, at least in my sandbox, the value in the DetailUrl field is always just /{ID}. The Id value itself is just 000000000000000AAA. Not that useful. But, not to fear, you can use the DurableId to build it yourself.

The following works generically for me without issue:

public static String getSetupUrl(SObjectType schemaType)
{
    String developerName = String.valueOf(schemaType).replace('__c', '');
    EntityDefinition definition = [
        SELECT DurableId, DetailUrl FROM EntityDefinition
        WHERE DeveloperName = :developerName
    ];

    system.assertEquals('000000000000000AAA', definition.Id);
    system.assertEquals('/{ID}', definition.DetailUrl);

    return URL.getSalesforceBaseUrl().toExternalForm() +
        '/' + definition.DurableId;
}

---

Note

You can't use the standard ApexPages.StandardController.view() methodology for building the url because the id values are fubar. It just returns null.