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OPDS can be filtered using more than one language 

From now on, the `lang` parameter of the /catalog/search,
/catalog/v2/entries, and /catalog/v2/partial_entries endpoints is
interpreted as a comma-separated list of languages.
This commit is contained in:
Veloman Yunkan 2022-10-31 21:41:28 +04:00 committed by Matthieu Gautier
parent c0d027e8a4
commit 7d69ece27d
3 changed files with 29 additions and 6 deletions
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8
include/library.h
View File

@ -106,7 +106,15 @@ class Filter {
Filter& rejectTags(const Tags& tags);
Filter& category(std::string category);
/**
* Set the filter to only accept books in the specified language.
*
* Multiple languages can be specified as a comma-separated list (in
* which case a book in any of those languages will match).
*/
Filter& lang(std::string lang);
Filter& publisher(std::string publisher);
Filter& creator(std::string creator);
Filter& maxSize(size_t size);

15
src/library.cpp
View File

@ -535,9 +535,20 @@ Xapian::Query categoryQuery(const std::string& category)
return Xapian::Query("XC" + normalizeText(category));
}
Xapian::Query langQuery(const std::string& lang)
Xapian::Query langQuery(const std::string& commaSeparatedLanguageList)
{
return Xapian::Query("L" + normalizeText(lang));
Xapian::Query q;
bool firstIteration = true;
for ( const auto& lang : kiwix::split(commaSeparatedLanguageList, ",") ) {
const Xapian::Query singleLangQuery("L" + normalizeText(lang));
if ( firstIteration ) {
q = singleLangQuery;
firstIteration = false;
} else {
q = Xapian::Query(Xapian::Query::OP_OR, q, singleLangQuery);
}
}
return q;
}
Xapian::Query publisherQuery(const std::string& publisher)

12
test/library_server.cpp
View File

@ -344,10 +344,12 @@ TEST_F(LibraryServerTest, catalog_search_by_language)
" <id>12345678-90ab-cdef-1234-567890abcdef</id>\n"
" <title>Filtered zims (lang=eng,fra)</title>\n"
" <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
" <totalResults>0</totalResults>\n"
" <totalResults>2</totalResults>\n"
" <startIndex>0</startIndex>\n"
" <itemsPerPage>0</itemsPerPage>\n"
" <itemsPerPage>2</itemsPerPage>\n"
CATALOG_LINK_TAGS
RAY_CHARLES_CATALOG_ENTRY
CHARLES_RAY_CATALOG_ENTRY
"</feed>\n"
);
}
@ -727,9 +729,11 @@ TEST_F(LibraryServerTest, catalog_v2_entries_filtered_by_language)
CATALOG_V2_ENTRIES_PREAMBLE("?lang=eng,fra")
" <title>Filtered Entries (lang=eng,fra)</title>\n"
" <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
" <totalResults>0</totalResults>\n"
" <totalResults>2</totalResults>\n"
" <startIndex>0</startIndex>\n"
" <itemsPerPage>0</itemsPerPage>\n"
" <itemsPerPage>2</itemsPerPage>\n"
RAY_CHARLES_CATALOG_ENTRY
CHARLES_RAY_CATALOG_ENTRY
"</feed>\n"
);
}