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Update search to take the length of words into account. Fixes #134.
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4 changed files with 10 additions and 7 deletions
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@ -27,6 +27,7 @@ This file holds the changelog for Pepperminty Wiki. This is the master list of t
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- Make `invindex-rebuild` admin-only, but allow access if the POST param `secret` is set to your secret in `peppermint.json`
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- Improved the wording of the deletion confirmation and error pages
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- Search now searches matching tags as well as pages
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- Updated the search ranking algorithm to put more weight against longer words than shorter ones.
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## v0.14
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@ -4182,7 +4182,7 @@ class search
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if(!isset($matching_pages[$pageid]["title-matches"]))
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$matching_pages[$pageid]["title-matches"] = 0;
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$matching_pages[$pageid]["title-matches"] += count(mb_stripos_all($pagename, $qterm));
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$matching_pages[$pageid]["title-matches"] += count(mb_stripos_all($pagename, $qterm)) * strlen($qterm);
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}
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// Consider matches in the page's tags
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@ -4195,7 +4195,7 @@ class search
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// Set up a counter for tag match if there isn't one already
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if(!isset($matching_pages[$pageid]["tag-matches"]))
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$matching_pages[$pageid]["tag-matches"] = 0;
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$matching_pages[$pageid]["tag-matches"] += count(mb_stripos_all(implode(" ", $pagedata->tags), $qterm));
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$matching_pages[$pageid]["tag-matches"] += count(mb_stripos_all(implode(" ", $pagedata->tags), $qterm)) * strlen($qterm);
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}
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}
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}
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@ -4212,7 +4212,8 @@ class search
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foreach($pagedata["nterms"] as $pterm => $entry)
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{
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// Add the number of occurrences of this search term to the ranking
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$pagedata["rank"] += $entry["freq"];
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// Multiply it by the length of the word
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$pagedata["rank"] += $entry["freq"] * strlen($pterm);
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// Add the offsets to a listof all offsets on this page
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foreach($entry["offsets"] as $offset)
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@ -104,7 +104,7 @@
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"author": "Starbeamrainbowlabs",
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"description": "Adds proper search functionality to Pepperminty Wiki using an inverted index to provide a full text search engine. If pages don't show up, then you might have hit a stop word. If not, try requesting the `invindex-rebuild` action to rebuild the inverted index from scratch.",
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"id": "feature-search",
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"lastupdate": 1508017313,
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"lastupdate": 1508071155,
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"optional": false
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},
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{
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@ -727,7 +727,7 @@ class search
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if(!isset($matching_pages[$pageid]["title-matches"]))
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$matching_pages[$pageid]["title-matches"] = 0;
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$matching_pages[$pageid]["title-matches"] += count(mb_stripos_all($pagename, $qterm));
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$matching_pages[$pageid]["title-matches"] += count(mb_stripos_all($pagename, $qterm)) * strlen($qterm);
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}
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// Consider matches in the page's tags
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@ -740,7 +740,7 @@ class search
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// Set up a counter for tag match if there isn't one already
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if(!isset($matching_pages[$pageid]["tag-matches"]))
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$matching_pages[$pageid]["tag-matches"] = 0;
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$matching_pages[$pageid]["tag-matches"] += count(mb_stripos_all(implode(" ", $pagedata->tags), $qterm));
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$matching_pages[$pageid]["tag-matches"] += count(mb_stripos_all(implode(" ", $pagedata->tags), $qterm)) * strlen($qterm);
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}
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}
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}
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@ -757,7 +757,8 @@ class search
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foreach($pagedata["nterms"] as $pterm => $entry)
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{
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// Add the number of occurrences of this search term to the ranking
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$pagedata["rank"] += $entry["freq"];
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// Multiply it by the length of the word
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$pagedata["rank"] += $entry["freq"] * strlen($pterm);
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// Add the offsets to a listof all offsets on this page
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foreach($entry["offsets"] as $offset)
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