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This commit adds support in rummager for “more like this” queries to be sent to Elasticsearch. “More like this” queries allow searching using an existing indexed document as a starting point, and returning a set of documents that are “similar” to it content-wise. A “more like this” search can be carried out using the existing rummager search endpoint with the new `similar_to` option, which takes a base path as its value (more correctly, the ID of the document in the Elasticsearch index). These searches cannot be combined with a text query (using the `q` option) and they also cannot be custom sorted (they are already sorted by similarity).
There has been changes in the tests' setup recently. This commit makes sure the tests related to "more like this" queries are up-to-date.
tijmenb
approved these changes
Feb 13, 2017
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We are in the process of trying to populate the Related Item's component (or similar component) with links that are similar to a given content item based on the "more like this" feature in ElasticSearch.
This PR brings that functionality into Rummager in order to let us experiment with it in the new navigation.
Trello: https://trello.com/c/euH6zl1h/393-re-introduce-more-like-this-functionality-into-rummager
Part of: https://trello.com/c/HjuOpRCc/231-as-a-user-i-want-relevant-links-in-the-sidebar-so-i-can-move-sideways-or-zoom-out-orient-myself
This work was started by @rubenarakelyan some time ago.