koobas.hobune.stream
Modify Prefab Asset in OnValidate
Hi, I'm trying to automatically assign a value to a field on a component that resides in a prefab in script and save that prefab modification in OnValidate.
Here is my script:
[SerializeField] MyComponent myComponent;
void OnValidate()
{
if (myComponent != null)
{
myComponent.myScriptableObject = this;
PrefabUtility.RecordPrefabInstancePropertyModifications(myComponent.myScriptableObject);
//At this point, myComponent.myScriptableObject shows the correct value
PrefabUtility.SavePrefabAsset(myComponent.gameObject, out bool success);
//Now myComponent.myScriptableObject is reset to null
}
}
Unfortunately, this script doesn't work. For some reason the value is not actually applied to the prefab. What am I missing here?
Also, calling SavePrefabAsset() in Onvalidate gives me the following error in console :
Destroying GameObjects immediately is not permitted during physics trigger/contact, animation event callbacks or OnValidate. You must use Destroy instead.
UnityEditor.PrefabUtility:SavePrefabAsset(GameObject, Boolean&) (at ?)
ResearchTree.Data.ResearchItem:OnValidate()
Is this related in any way?
In case others were looking for that answer. This is what I ended up doing:
SerializedObject serializedObject = new SerializedObject(myComponent);
SerializedProperty myComponentProperty = serializedObject.FindProperty("myProperty");
if (myComponentProperty != null)
{
myComponentProperty.objectReferenceValue = this;
serializedObject.ApplyModifiedProperties();
}
What are you actualy trying to do? There's something fishy about what you showed ...
I'm just trying to set a serialized field of a component on a prefab to a certain value from a scriptable object's OnValidate.
