Salesforce Stack Exchange is a question and answer site for Salesforce administrators, implementation experts, developers and anybody in-between. It only takes a minute to sign up.
Sign up to join this community
Schema.DescribeSObjectResult r = t.getDescribe();
Schema.DescribeFieldResult f =r.fields.getMap().get(fieldName).getDescribe();
return f.getType(); // this here returns the field type
Is there a way to create a attribute based on the type returned or dynamically assign it to the existing attribute?
Yeah you can declare an aura attribute of type="Object" which can take any object either an sObject or an object instatiated and created in JavaScript controller.
But serialisation at client side that is in your JavaScript controller and deserialisation into a custom wrapper at Apex controller should be done if you are sending custom JavaScript objects back to apex
Note: variables in the wrapper class must be @auraEnabled
First, I'm going to assume you're running the above code in a Server side controller and passing the results to your component. It's not clear if you're wanting to define a Type attribute for an Object's variable, but it sounds as though you do. I think there are two references that will answer all of your questions and point you in the right direction.
The way to do this is via a server side controller since the code you've posted won't run client side. See Working with Salesforce Records in the Lightning Component Developer Guide and I think you'll also find some of the links at the bottom of that page helpful to you too.
You'll notice the below code uses the aura:attribute to set an object type.
<aura:component controller="MyObjController"/>
<aura:attribute name="myObjects" type="namespace.MyObj__c[]"/>
<aura:iteration items="{!v.myObjects}" var="obj">
{!obj.Name}, {!obj.namespace__myField__c}
</aura:iteration>
You'd need to pass a different type into your code and use set:attribute to then provide the attribute's name and type to change it dynamically. See aura:set in the documentation for more on how to do this, including with arrays that contain an object and it's fields (object fields being what seems to be more relevant to your question).
You'll still need to have a server side controller that contains the results of your Apex schema describe calls to pass the type in an @AuraEnabled
method to your component if you're doing this dynamically as implied by the code you've provided. You could also use typeof rather than complete schema calls where appropriate. I wouldn't want to rely on JS for this.
