Hi,
I have two non-spatial features and need to bring together the string values from several records in one attribute.
For example:
FK1
IDState1CH2US3AU4IT5FR
FK2
IDNarrative1B11B21B32C12C23D33D43D53D7
I need to get follow result:
IDStateNarrative1CHB1, B2, B32USC1, C23AUD3, D4, D5, D7
How can I do it with FME?
Thanks for help
Best answer by erik_jan
You can use an Aggregator (concatenate Narrative and group by ID) on the second dataset and then use a FeatureMerger to merge that dataset to the first.
+49Use a ListBuilder on the 2nd dataset, set to group by ID, and then a ListConcatenator on the Narrative attribute. Then a FeatureMerger to match it with the 1st dataset
Hi @zoran68, the FeatureMerger with "Generate List" option can be used to merge multiple FK2 records as list elements to a FK1 record having the same ID. You can then use the ListConcatenator to concatenate the list elements using any delimiter (e.g. comma).
+49Use a ListBuilder on the 2nd dataset, set to group by ID, and then a ListConcatenator on the Narrative attribute. Then a FeatureMerger to match it with the 1st dataset
+18You can use an Aggregator (concatenate Narrative and group by ID) on the second dataset and then use a FeatureMerger to merge that dataset to the first.
+45Hi @zoran68, i created the template file with your case using the FeatureMerger.
Thanksworkspace-list.fmwt
off-topic: I'm exploring more effective usage of XQuery expressions in FME workspaces. This might be a typical example.
ROOT Template:
let $r := <root>{fme:process-features("SUB")}</root>
return {
"ID": fme:get-attribute("ID"),
"State": fme:get-attribute("State"),
"Narrative": fn:string-join({for $v in $r/sub/@Narrative return $v}, ",")
}
SUB Template:
<sub Narrative="{fme:get-attribute("Narrative")}" />
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