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epriestley 9a1d59ad5b Separate sever-side typeahead queries into "prefix" and "content" phases
Summary:
Ref T8510. When users type "platypus" into a typeahead, they want "Platypus Playground" to be a higher-ranked match than "AAA Platypus", even though the latter is alphabetically first.

Specifically, the rule is: results which match the query as a prefix of the result text should rank above results which do not.

I believe we now always get this right on the client side. However, WMF has at least one case (described in T8510) where we do not get it right on the server side, and thus the user sees the wrong result.

The remaining issue is that if "platypus" matches more than 100 results, the result "Platypus Playground" may not appear in the result set at all, beacuse there are 100 copies of "AAA Platypus 1", "AAA Platypus 2", etc., first. So even though the client will apply the correct sort, it doesn't have the result the user wants and can't show it to them.

To fix this, split the server-side query into two phases:

  - In the first phase, the "prefix" phase, we find results that **start with** "platypus".
  - In the second phase, the "content" phase, we find results that contain "platypus" anywhere.

We skip the "prefix" phase if the user has not typed a query (for example, in the browse view).

Test Plan:
This is a lot of stuff, but the new ranking here puts projects which start with "w" at the top of the list. Lower down the list, you can see some projects which contain "w" but do not appear at the top (like "Serious Work").

{F1913931}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T8510

Differential Revision: https://secure.phabricator.com/D16838
2016-11-10 08:54:59 -08:00
bin Add a skeleton for Calendar notifications 2016-11-01 10:41:15 -07:00
conf Support "ssl.chain" in Aphlict configuration 2016-04-14 10:41:21 -07:00
externals Backport fix from php-mime-mail-parser to fix attachment parsing 2016-09-21 15:04:20 -07:00
resources Clean up fullscreen remarkup UI 2016-11-10 08:09:07 -08:00
scripts Remove ancient "Holiday" storage 2016-11-01 16:03:44 -07:00
src Separate sever-side typeahead queries into "prefix" and "content" phases 2016-11-10 08:54:59 -08:00
support Blanket reject request which may have been poisoned by a "Proxy" header to mitigate the httpoxy vulnerability 2016-07-21 20:18:06 -07:00
webroot Clean up fullscreen remarkup UI 2016-11-10 08:09:07 -08:00
.arcconfig Set "history.immutable" to "false" explicitly in .arcconfig 2016-08-03 08:12:49 -07:00
.arclint Begin adding test coverage to GitHub Events API parsers 2016-03-09 09:30:07 -08:00
.arcunit Use the configuration driven unit test engine 2015-08-11 07:57:11 +10:00
.editorconfig Fix text lint issues 2015-02-12 07:00:13 +11:00
.gitignore Make i18n string extraction faster and more flexible 2016-07-04 10:23:30 -07:00
LICENSE Fix text lint issues 2015-02-12 07:00:13 +11:00
NOTICE Update Phabricator NOTICE file to reflect modern legal circumstances 2014-06-25 13:42:13 -07:00
README.md Remove push to IRC from "readme.md" too 2015-10-24 18:39:16 -07:00

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