Order search results by title relevance

[keesiemeijer]

The search results should be ordered by title first. As it is now you get a mixed bag of content and title matches.
If it's ordered by title you get more specific results similar to the search query.

See the screenshots for "get posts"

[keesiemeijer]

Set orderby for searches with pre_get_posts to 'search_orderby_title'

[keesiemeijer]

Order as it's now

[keesiemeijer]

Search results ordered by title

[coffee2code]

In 2781:

developer.wordpress.org: Order search results by title relevance.

Props keesiemeijer.
Fixes #1516.

[keesiemeijer]

To get even more relevant results the order should be to show the shortest full matches first. To get the same results for sentence matches a condition with spaces converted to underscores should be added in the posts_orderby clause.

[keesiemeijer]

Order with shortest matches first

[keesiemeijer]

Search results for 1516.1 patch showing shortest match first

[coffee2code]

In 2938:

developer.wordpress.org: Improve ordering of search results by title relevance.

• Show shortest full matches first.
• Convert spaces to underscores when doing title searches for short phrases.

Props keesiemeijer.
Fixes #1516.