After switching to Xapian-based search in the library/catalog, an empty
query stopped acting as a match-all query. This commit restores the old
behaviour in that regard.
Returning status code 204 in case of an empty results doesn't show the
empty results page as described in #466. Reverting the changes in #396
fixes the issue.
The existing example.zim has an improper main page entry hence an
unusable index as reported in openzim/libzim#521
To replace the buggy zim, a new zim has been generated using the latest
zimwriterfs with latest libzim.
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The directory used to create zim is given below and are two pages from
wikibooks site:
htmlContent
├── favicon.png
├── FreedomBox for Communities_Offline Wikipedia - Wikibooks, open books for an open world_files
│ ├── index.php
│ ├── load.php
│ ├── poweredby_mediawiki_88x31.png
│ └── wikimedia-button.png
├── FreedomBox for Communities_Offline Wikipedia - Wikibooks, open books for an open world.html
├── Wikibooks_files
│ ├── 234px-Megakaryocyte1.svg.png
│ ├── 287px-ChewyGingerCookies.jpg
│ ├── 36px-Commons-logo.svg.png
│ ├── 40px-Wikiquote-logo.svg.png
│ ├── 41px-Wikispecies-logo.svg.png
│ ├── 46px-Wikisource-logo.svg.png
│ ├── 48px-MediaWiki-2020-icon.svg.png
│ ├── 48px-Phacility_phabricator_logo.png
│ ├── 48px-Wikimedia_Cloud_Services_logo.svg.png
│ ├── 48px-Wikimedia_Community_Logo.svg.png
│ ├── 48px-Wikivoyage-Logo-v3-icon.svg.png
│ ├── 51px-Wiktionary-logo.svg.png
│ ├── 53px-Wikipedia-logo-v2.svg.png
│ ├── 59px-Wikiversity_logo_2017.svg.png
│ ├── 86px-Wikidata-logo.svg.png
│ ├── 88px-Wikinews-logo.svg.png
│ ├── Haskell-logo.png
│ ├── index.php
│ ├── load.php
│ ├── poweredby_mediawiki_88x31.png
│ └── wikimedia-button.png
└── Wikibooks.html
The command for writing the zim:
$ zimwriterfs --welcome=Wikibooks.html --favicon=favicon.png --language=en --title=Wikibooks --description=testZim --creator=test --publisher=test --verbose ./htmlContent ./out/example.zim
Catalog filtering should now be case/diacritics insensitive for all
fields. However it is not validated for language, name and category
fields, and is validated for tags, creator & publisher only for text
supplied in the filter (but not for values read from the book).
Catalog filtering by titles/description was sensitive to diacritics
present in the query string. Fixed that.
Also enhanced the unit test to validate the insensitivity to diacritics
present in either the title/description or the query string.
Now the LibraryTest.filterCheck unit-test validates the actual entries
returned by `Library::filter` (previously only the count of the results
was checked).
The new unit-test fails with a reason not expected before it was
written. The `Library::filter()` operation returns a correct result
after the call to `removeBookById()` (this was a surprise!) but it has
a side-effect of re-adding an empty book with the id still surviving
in the search DB (the emptiness of this re-created book doesn't allow
it to pass the other filtering criteria, which explains why the result
of `Library::filter()` is correct). Had to add a special check
to the new unit-test against that hidden side-effect of
`Library::removeBookById()` + `Library::filter()` combination.
The search text in the catalog query is interpreted as partial by
default, but partial query mode can be disabled in C++. The latter
possibility is not exposed via the /catalog/search kiwix-serve endpoint,
though.
