Hi. I am using FME workbench 2022.2, made a custom transformer and want to automate to run multi times in a script depending on the number of differences in valeu of an attribute (this may varies).

I'm gathering you're essentially wanting find all unique values in a dataset and pass each unique value into the transformer?

You could either use the duplicate filter or sampler (with groupby set to the attribute name and "first n features" selected.

Both of these approaches will give you one feature for each different value in the select attribute

Thanks for the hint. Will try your sugestion.

Hi here a screenshot of the script using copy and paste.

Out of curiosity: why do you need to use a different instance of your custom transformer for each "ID-CODE"? Although I don't know the contents of your custom transformer, it looks like this may not be necessary.

I still expect you don't need a custom transformer.

If every "ID-CODE" exists only once, you can just process every record individually (FME does this by default).

In the case an "ID-CODE" exists serveral times, and you want to aggregrate all records with the same "ID-CODE", you can usually use a ListBuilder, setting 'Group By' to "ID-CODE", create a list of the attributes of the original records with the same "ID-CODE", and perform the aggregation on the attributes in the list.

This will also make your workspace more versatile and more robust, as you can process future data sets without having to set all unique values for "ID-CODE" explicitly in your workspace.

You're welcome :)