error t.partition.split is not a function when viewing paritions

[fboerman]

What's the issue?

when clicking on a partition of an asset in the dagster web UI I get:

Sorry, page can't be displayed.Please report this error to the Dagster team via GitHub or Slack. Refresh the page to try again.
t.partition.split is not a function

What did you expect to happen?

that the UI shows me details of the partition

How to reproduce?

define an asset with MultiPartitionsDefinition and go in the UI to assets -> partitions -> click on a partition

Dagster version

dagster, version 1.9.6

Deployment type

Local

Deployment details

this was in local dev environment

Additional information

No response

Message from the maintainers

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[fboerman]

after further investigation it seems this happens when I have partitions with values of "true" and "false" this bugs the selector somehow

[garethbrickman]

Confirming I was able to reproduce this using the below code:

from dagster import (
    AssetExecutionContext,
    MultiPartitionsDefinition,
    StaticPartitionsDefinition,
    asset,
    Definitions
)

@asset(
    partitions_def=MultiPartitionsDefinition(
        {
            "boolean": StaticPartitionsDefinition(["true", "false"]),
            "color": StaticPartitionsDefinition(["red", "yellow", "blue"]),
        }
    )
)
def multi_partitions_asset(context: AssetExecutionContext):
    partition_keys = context.partition_key.keys_by_dimension
    context.log.info(f"Boolean: {partition_keys['boolean']}, Color: {partition_keys['color']}")


defs = Definitions(assets=[multi_partitions_asset])

[bengotow]

Hmm offhand I think we must have URL querystring parsing in place that automatically coerces numeric and boolean types. I think it was a pain dealing with query string values like "false" because they were truthy strings by default.

I think a quick fix for this specific callsite would be to do something like this, but we may need to continue using the app and view other pages, etc. to make sure it doesn't pop up elsewhere! I think this is one of the only places partition names are serialized alone into the URL though.

`${t.partition}`.split...