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Improve dynamic page suggestions, and add option to output OpenSearch-compatible search suggestions

This commit is contained in:
Starbeamrainbowlabs 2017-06-28 10:44:44 +01:00
parent eb137df2b4
commit 60ebd1340c
3 changed files with 51 additions and 11 deletions

View file

@ -3353,12 +3353,13 @@ register_module([
/** /**
* @api {get} ?action=suggest-pages Get search suggestions for a query * @api {get} ?action=suggest-pages[&type={type}] Get search suggestions for a query
* @apiName OpenSearchDescription * @apiName OpenSearchDescription
* @apiGroup Search * @apiGroup Search
* @apiPermission Anonymous * @apiPermission Anonymous
* *
* @apiParam {string} text The search query string to get search suggestions for. * @apiParam {string} text The search query string to get search suggestions for.
* @apiParam {string} type The type of result to return. Default value: json. Available values: json, opensearch
*/ */
add_action("suggest-pages", function() { add_action("suggest-pages", function() {
global $settings, $pageindex; global $settings, $pageindex;
@ -3376,17 +3377,24 @@ register_module([
exit("Error: You didn't specify the 'query' GET parameter."); exit("Error: You didn't specify the 'query' GET parameter.");
} }
$type = $_GET["type"] ?? "json";
if(!in_array($type, ["json", "opensearch"])) {
http_response_code(406);
exit("Error: The type '$type' is not one of the supported output types. Available values: json, opensearch. Default: json");
}
// Rank each page name // Rank each page name
$results = []; $results = [];
foreach($pageindex as $pageName => $entry) { foreach($pageindex as $pageName => $entry) {
$results[] = [ $results[] = [
"pagename" => $pageName, "pagename" => $pageName,
// Costs: Insert: 1, Replace: 8, Delete: 6 // Costs: Insert: 1, Replace: 8, Delete: 6
"distance" => levenshtein($_GET["query"], $pageName, 1, 8, 6) "distance" => levenshtein(mb_strtolower($_GET["query"]), mb_strtolower($pageName), 1, 8, 6)
]; ];
} }
// Sort the page names by distance form the original query // Sort the page names by distance from the original query
usort($results, function($a, $b) { usort($results, function($a, $b) {
if($a["distance"] == $b["distance"]) if($a["distance"] == $b["distance"])
return strcmp($a["pagename"], $b["pagename"]); return strcmp($a["pagename"], $b["pagename"]);
@ -3394,8 +3402,20 @@ register_module([
}); });
// Send the results to the user // Send the results to the user
$suggestions = array_slice($results, 0, $settings->dynamic_page_suggestion_count);
switch($type)
{
case "json":
header("content-type: application/json"); header("content-type: application/json");
exit(json_encode(array_slice($results, 0, $settings->dynamic_page_suggestion_count))); exit(json_encode($suggestions));
case "opensearch":
$opensearch_output = [
$_GET["query"],
array_map(function($suggestion) { return $suggestion["pagename"]; }, $suggestions)
];
header("content-type: application/x-suggestions+json");
exit(json_encode($opensearch_output));
}
}); });
if($settings->dynamic_page_suggestion_count > 0) if($settings->dynamic_page_suggestion_count > 0)

View file

@ -104,7 +104,7 @@
"author": "Starbeamrainbowlabs", "author": "Starbeamrainbowlabs",
"description": "Adds proper search functionality to Pepperminty Wiki using an inverted index to provide a full text search engine. If pages don't show up, then you might have hit a stop word. If not, try requesting the `invindex-rebuild` action to rebuild the inverted index from scratch.", "description": "Adds proper search functionality to Pepperminty Wiki using an inverted index to provide a full text search engine. If pages don't show up, then you might have hit a stop word. If not, try requesting the `invindex-rebuild` action to rebuild the inverted index from scratch.",
"id": "feature-search", "id": "feature-search",
"lastupdate": 1498639329, "lastupdate": 1498643008,
"optional": false "optional": false
}, },
{ {

View file

@ -279,12 +279,13 @@ register_module([
/** /**
* @api {get} ?action=suggest-pages Get search suggestions for a query * @api {get} ?action=suggest-pages[&type={type}] Get search suggestions for a query
* @apiName OpenSearchDescription * @apiName OpenSearchDescription
* @apiGroup Search * @apiGroup Search
* @apiPermission Anonymous * @apiPermission Anonymous
* *
* @apiParam {string} text The search query string to get search suggestions for. * @apiParam {string} text The search query string to get search suggestions for.
* @apiParam {string} type The type of result to return. Default value: json. Available values: json, opensearch
*/ */
add_action("suggest-pages", function() { add_action("suggest-pages", function() {
global $settings, $pageindex; global $settings, $pageindex;
@ -302,17 +303,24 @@ register_module([
exit("Error: You didn't specify the 'query' GET parameter."); exit("Error: You didn't specify the 'query' GET parameter.");
} }
$type = $_GET["type"] ?? "json";
if(!in_array($type, ["json", "opensearch"])) {
http_response_code(406);
exit("Error: The type '$type' is not one of the supported output types. Available values: json, opensearch. Default: json");
}
// Rank each page name // Rank each page name
$results = []; $results = [];
foreach($pageindex as $pageName => $entry) { foreach($pageindex as $pageName => $entry) {
$results[] = [ $results[] = [
"pagename" => $pageName, "pagename" => $pageName,
// Costs: Insert: 1, Replace: 8, Delete: 6 // Costs: Insert: 1, Replace: 8, Delete: 6
"distance" => levenshtein($_GET["query"], $pageName, 1, 8, 6) "distance" => levenshtein(mb_strtolower($_GET["query"]), mb_strtolower($pageName), 1, 8, 6)
]; ];
} }
// Sort the page names by distance form the original query // Sort the page names by distance from the original query
usort($results, function($a, $b) { usort($results, function($a, $b) {
if($a["distance"] == $b["distance"]) if($a["distance"] == $b["distance"])
return strcmp($a["pagename"], $b["pagename"]); return strcmp($a["pagename"], $b["pagename"]);
@ -320,8 +328,20 @@ register_module([
}); });
// Send the results to the user // Send the results to the user
$suggestions = array_slice($results, 0, $settings->dynamic_page_suggestion_count);
switch($type)
{
case "json":
header("content-type: application/json"); header("content-type: application/json");
exit(json_encode(array_slice($results, 0, $settings->dynamic_page_suggestion_count))); exit(json_encode($suggestions));
case "opensearch":
$opensearch_output = [
$_GET["query"],
array_map(function($suggestion) { return $suggestion["pagename"]; }, $suggestions)
];
header("content-type: application/x-suggestions+json");
exit(json_encode($opensearch_output));
}
}); });
if($settings->dynamic_page_suggestion_count > 0) if($settings->dynamic_page_suggestion_count > 0)