[Documentation] Add cookbook how to implement a live search with SEAL

[alexander-schranz]

As feedback from @lochmueller #416 (comment) I think some kind of documentation how to create a live search / autocomplete would be nice.

[lochmueller]

Hey @alexander-schranz
thanks for the issue. In my case, the problem is not directly related to the search execution. The problem is "more or less" the extraction of the auto-complete list out of the search result. In my case currently it is a like search https://github.com/lochmueller/seal/blob/main/Classes/Adapter/Typo3/Typo3Searcher.php#L90 on two FULLTEXT indexed fields https://github.com/lochmueller/seal/blob/main/ext_tables.sql#L5. But the problem is, if the user enter e.g. "Berg" and you can complete "Bergbahn" and "Bergwelten" I have to extract the "possible matched words" dirty out of the result set (some regex, string search stuff - but would work with all adapter): https://github.com/lochmueller/seal/blob/main/Classes/Handler/AutocompleteHandler.php#L54
Currently, I do not see any other options, then execute the search and parse the result string for the rights words...
Regards,
Tim

[alexander-schranz]

@lochmueller now I understand, looks something similar to highlighting, did you try to use the highlight feature to extract it?

https://php-cmsig.github.io/search/search-and-filters/index.html#highlighting

What could also be possible try to use @Toflar loupe matcher, or extend that lib for your case: https://github.com/loupe-php/matcher

[Toflar]

Many search engines (Loupe included - https://github.com/loupe-php/loupe/blob/main/docs/searching.md#term-highlighting) can give you the information in which attribute a match occurred and at what positions. Maybe this information could be exposed through SEAL? I know that Meilisearch provides this info too, unsure about other engines.