couchdb validate against documents in an other database

Asked Sep 24 '19 at 06:12

Active Sep 24 '19 at 06:12

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I need to write an design doc that checks whether or not an ID exists on a product in an other database (same CouchDB instance) before allowing the addition of a document to the database.

This should go along the lines of the following:

Actor -> Requests to store a document in the database. 
System -> Checks if a document exists in an other database so it can validate the input from the request. 
System -> Adds the document if validation succeeds or refuses the document if validation fails.

My question is. Is it possible to validate against the content of an other database? I have not been able to find anything about accessing the documents in an other database from within a design document (update handler) so far.

asked Sep 24 '19 at 06:12

SomeDutchGuy

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You can't. Database are selfcontained. – Alexis Côté Sep 24 '19 at 15:50
@AlexisCôté far as I found now it also does not seem to be possible to do this if the documents are in the same database. Am I correct that all update handlers can only function on those documents provided by newDoc and oldDoc? – SomeDutchGuy Sep 25 '19 at 06:01
This is indeed true – Alexis Côté Sep 25 '19 at 14:36

couchdb validate against documents in an other database

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