Data validation

• Editor Validators

Validate Assets

You can use IsDataValid to generated BP compilation message/warning/error as you need (for example, to tell your designers they missed something).

Fix actions

In 5.5 there is a new “fix me” overridable methods that will run code when you click on the text (similar to engine “fix” clickable text), more info here.

Example:

TSharedRef<FTokenizedMessage> Message = FTokenizedMessage::Create(EMessageSeverity::Error);  
Message->AddToken(FAssetNameToken::Create(GetPathNameSafe(Blueprint),  
    FText::FromString(FString::Printf(  
       TEXT("Prefab Reference Component %s doesn't have the default required struct FPSRequiredActorPrefabSpawnParameters (Required Spawn Prefab Parameters)."),  
       *FU_Utilities::GetNameWithoutTemplateSuffix(PRC->GetFName()).ToString()  
))));  
  
// Make a FixeController  
TSharedRef<FMutuallyExclusiveFixSet> FixController = MakeShareable(new FMutuallyExclusiveFixSet());  
  
// fix function  
TFunction<FFixResult()> ApplyFix = [PRC]()  
{  
    PRC->AddPrefabSpawnParametersStruct<FPSRequiredActorPrefabSpawnParameters>();  
    return FFixResult::Success();  
};  
  
// actual fixer  
const TSharedRef<IFixer> Fixer = MakeFix(MoveTemp(ApplyFix));  
  
// action message with fixer  
FixController->Add(INVTEXT("Click to add the Required Spawn Prefab Parameters struct"), Fixer);  
  
FixController->CreateTokens([Message](TSharedRef<FFixToken> FixToken)  
    {       Message->AddToken(FixToken);  
    });  
  
// finally, add the message to the editor validator entries  
Context.AddMessage(Message);

Result:

Validate project

You can use validators See CommonValidators

Map checks

CheckForErrors

TValueOrError

example code