Conditional mapping and issues updating work items

[sonicadv27]

I'm trying to get some kind of conditional mapping going on with the following setup:

• If Field ABC on Source has a value then map directly to Field ABC on Target
• if Field ABC on Source is empty then use the value from Field DEF to fill Field ABC on Target

I tried using the MultiValueConditionalMapConfig settings to do this, with no luck. The documentation doesn't show any examples on how to use it and i don't see anyone online attempting to do so.

I then tried using the WorkItemMigration processor to first move the work items to Target and then running it again with a different mapping config to map Field DEF on Source to Field ABC on Target, for the work items that have Field A empty on Source.

However, the processor seems to ignore the work item since it exists already on the Target and no revisions are detected:

Is there a way to do this? Can i make the processor not skip any items? I do have FilterWorkItemsThatAlreadyExistInTarget set to false but it seems to make no difference in this case, which is why i'm not sure if this is an issue or just a design choice. And what about the MultiValueConditionalMapConfig? Is there any documentation on how it works exactly and how to use it?

[MrHinsh]

Re-Migration of a Work Item

In the WorkItemMigrationContext if there have been no changes on the Source, then there is nothing to migrate to the target, and the work item will be skipped.

You can a) delete the work item in the target to re-migrate, or b) make a change on the source to force a revision.

There is a completely undocumented WorkItemPostProcessingContext that would allow you to continuously apply feld mappings over the top of the Target from the Source, but this processor was never completed and would require you to clone the repo and run that processor in debug. This processor will NOT add new work items, just overwrite the fields based on a mapping from the source.

Field Mappings

There is not a lot of documentation on the FieldMapps, but the MultiValueConditionalMapConfig is designed to, for example, convert the [System.State] field from the values for the Agile process to those from the Scrum process. There is no multi-field conditional mapping that allows you to add a value to Field A in the target if field B in the source has a specific value.

We do take pull requests, and this is a good suggestion.