1

In my custom object I have two fields Name__c and QuestionString__c

I am trying to initialise a map with Name__c as key and QuestionString__c as value from a SOQL.

Map<String, String> ppmap = new Map<String, String>([SELECT Name__c, QuestionString__c FROM PObj__c]);

I tried the above but I get the error as

Invalid initializer type List found for Map: expected a Map with the same key and value types, or a valid SObject List

Can someone tell me if it is possible to initialize a map directly (without "Id") from SOQL ?

6

You can only use an initializer for a Map<Id, SObject>. If you want to map one field to another, you need a for loop.

Valid:

Map<Id, SObject> data = new Map<Id, SObject>([
    SELECT ... FROM ... WHERE ...
]);

Not Valid:

Map<String, String> data = new Map<String, String>([
    SELECT ... FROM ... WHERE ...
]);

Looping:

Map<String, String> data = new Map<String, String>();
for (MyObject__c record : [SELECT ... FROM ... WHERE ...])
{
    data.put(record.Field1__c, record.Field2__c);
}

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.