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thorOdinson

•Created by thorOdinson on 3/5/2025 in #questions

MergeE with a conditional on the value being set

I'm trying to use MergeE to create an edge if it does not exist (based on the label and in/out nodes) and if it does exist I want to update a modified timestamp on the edge only if the incoming timestamp is greater than what is on the edge, so far I've got something like:

g.mergeE([
    (T.label): 'RUNS',
    (to): 'nodeID',
    (from): 'nodeID'
    ]).
        option(onCreate, [
            (from): 'nodeID',
            (to): 'nodeID',
            (T.id): 'someUUID',
            'modifiedTime': 'Wed Mar 05 12:15:39 EST 2025'
            ]
        ).
        option(onMatch, __.filter(__.coalesce(
                __.values("modifiedTime").is(lt('Wed Mar 05 12:15:39 EST 2025')),
                __.constant(true))).
                property("modifiedTime", 'Wed Mar 05 12:15:39 EST 2025')).
        next()

g.mergeE([
    (T.label): 'RUNS',
    (to): 'nodeID',
    (from): 'nodeID'
    ]).
        option(onCreate, [
            (from): 'nodeID',
            (to): 'nodeID',
            (T.id): 'someUUID',
            'modifiedTime': 'Wed Mar 05 12:15:39 EST 2025'
            ]
        ).
        option(onMatch, __.filter(__.coalesce(
                __.values("modifiedTime").is(lt('Wed Mar 05 12:15:39 EST 2025')),
                __.constant(true))).
                property("modifiedTime", 'Wed Mar 05 12:15:39 EST 2025')).
        next()

but I can't seem to figure out what should be going into the onMatch section to get this to work

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