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Support conjunctive keyword search in RPC interface

Browse source 
Newly supported API Version 6 modifies `type=search` for _by_ type
`name-desc`: it now behaves the same as `name-desc` search through the
https://aur.archlinux.org/packages/ search page.

Search for packages containing the literal keyword `blah blah` AND `haha`:
https://aur.archlinux.org/rpc/?v=6&type=search&arg="blah blah"%20haha

Search for packages containing the literal keyword `abc 123`:
https://aur.archlinux.org/rpc/?v=6&type=search&arg="abc 123"

The following example searches for packages that contain `blah` AND `abc`:
https://aur.archlinux.org/rpc/?v=6&type=search&arg=blah%20abc

The legacy method still searches for packages that contain `blah abc`:
https://aur.archlinux.org/rpc/?v=5&type=search&arg=blah%20abc
https://aur.archlinux.org/rpc/?v=5&type=search&arg=blah%20abc

API Version 6 is currently only considered during a `search` of `name-desc`.

Note: This change was written as a solution to
https://bugs.archlinux.org/task/49133.

PS: + Some spacing issues fixed in comments.

Signed-off-by: Kevin Morris <kevr.gtalk@gmail.com>
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>
This commit is contained in:
Kevin Morris 2020-07-05 18:19:06 -07:00 • committed by Lukas Fleischer
parent 239988def7
commit efe99dc16f
3 changed files with 43 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

34
web/lib/pkgfuncs.inc.php
View file

@ -696,8 +696,10 @@ function pkg_search_page($params, $show_headers=true, $SID="") {
$q_where .= "AND (PackageBases.Name LIKE " . $dbh->quote($K) . ") ";
}
elseif (isset($params["SeB"]) && $params["SeB"] == "k") {
/* Search by keywords. */
$q_where .= construct_keyword_search($dbh, $params['K'], false);
/* Search by name. */
$q_where .= "AND (";
$q_where .= construct_keyword_search($dbh, $params['K'], false, true);
$q_where .= ") ";
}
elseif (isset($params["SeB"]) && $params["SeB"] == "N") {
/* Search by name (exact match). */
@ -709,7 +711,9 @@ function pkg_search_page($params, $show_headers=true, $SID="") {
}
else {
/* Keyword search (default). */
$q_where .= construct_keyword_search($dbh, $params['K'], true);
$q_where .= "AND (";
$q_where .= construct_keyword_search($dbh, $params['K'], true, true);
$q_where .= ") ";
}
}
@ -832,10 +836,11 @@ function pkg_search_page($params, $show_headers=true, $SID="") {
* @param handle $dbh Database handle
* @param string $keywords The search term
* @param bool $namedesc Search name and description fields
* @param bool $keyword Search packages with a matching PackageBases.Keyword
*
* @return string WHERE part of the SQL clause
*/
function construct_keyword_search($dbh, $keywords, $namedesc) {
function construct_keyword_search($dbh, $keywords, $namedesc, $keyword=false) {
$count = 0;
$where_part = "";
$q_keywords = "";
@ -860,13 +865,18 @@ function construct_keyword_search($dbh, $keywords, $namedesc) {
$term = "%" . addcslashes($term, '%_') . "%";
$q_keywords .= $op . " (";
$q_keywords .= "Packages.Name LIKE " . $dbh->quote($term) . " ";
if ($namedesc) {
$q_keywords .= "Packages.Name LIKE " . $dbh->quote($term) . " OR ";
$q_keywords .= "Description LIKE " . $dbh->quote($term) . " OR ";
$q_keywords .= "OR Description LIKE " . $dbh->quote($term) . " ";
}
if ($keyword) {
$q_keywords .= "OR EXISTS (SELECT * FROM PackageKeywords WHERE ";
$q_keywords .= "PackageKeywords.PackageBaseID = Packages.PackageBaseID AND ";
$q_keywords .= "PackageKeywords.Keyword LIKE " . $dbh->quote($term) . ")) ";
} else {
$q_keywords .= ") ";
}
$q_keywords .= "EXISTS (SELECT * FROM PackageKeywords WHERE ";
$q_keywords .= "PackageKeywords.PackageBaseID = Packages.PackageBaseID AND ";
$q_keywords .= "PackageKeywords.Keyword LIKE " . $dbh->quote($term) . ")) ";
$count++;
if ($count >= 20) {
@ -875,11 +885,7 @@ function construct_keyword_search($dbh, $keywords, $namedesc) {
$op = "AND ";
}
if (!empty($q_keywords)) {
$where_part = "AND (" . $q_keywords . ") ";
}
return $where_part;
return $q_keywords;
}
/**