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EleasticSearch and Indexing Empty Models

Dan Tappin asked in Gems / Libraries

I have added Elastic Search to my Rails app via the Searchkick gem. I have hit a snag - when I have a model with no records I get these errors:

Searchkick::InvalidQueryError: [400] {"error":{"root_cause":[{"type":"query_shard_exception","reason":"No mapping found for [name] in order to sort on"...

My controller by default is trying to sort the results but there are no results in the index so this fails. A plain old .search("*") returns no results - as expected. It seems that the reindex runs but the index doesn't build the mappings because there is no data.

I know I could add some logic before my search (like a Model.count) but this seems non-ideal. Am I missing a basic ElasticSearch feature here or any other ways to avoid this?

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That was the trick - I should have spent more time searching the issues and I would have found that. If any one else hits this issue also note the requirement to add the second level of { } to the order query. That is not obvious. Just spent 10 minutes baning my head against the wall. 🤦‍♂️

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