Question: best way to use more than 1 data store in a migration?

[michaelklishin]

I'd like to write a migration that loads data from PG and indexes it with ES. What's the recommended way of doing that with Joplin?

[martintrojer]

I would use a ES seed function for this.

If you need specific mappings in the ES index I'd do that in a migrator.

If this is something you want to do repeatedly, I'd make the seed function idempotent and add it to a cron job.

On 10 Feb 2015, at 20:09, Michael Klishin [email protected] wrote:

I'd like to write a migration that loads data from PG and indexes it with ES. What's the recommended way of doing that with Joplin?

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[michaelklishin]

Seeds are not an option: we'd like to not have any seeds in production. What's the best way to access connection info of other data stores from a migrator?

[martintrojer]

I see your problem, even with seeds there is no way of getting the target map for the other db/migrator combinations in that environment.

One potential fix is to pass the joplin "conf" map through to the core multi-methods which would allow you to call joplin.main/get-targets to extract the info.

[michaelklishin]

@martintrojer ok, I'll have a look.

[michaelklishin]

@martintrojer should conf then be the 2nd (optional) argument the up and down functions accept?

[martintrojer]

sounds reasonable, please add it to args of the seed functions aswell.