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Clear out the id index when rebuilding the inverted index - it sometimes goes all funny otherwise, apparently
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parent
2a3beccc72
commit
d83bbb3527
4 changed files with 107 additions and 9 deletions
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@ -1093,6 +1093,20 @@ class ids
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file_put_contents($paths->idindex, json_encode($idindex));
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}
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/**
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* Clears the id index completely. Will break the inverted search index!
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*/
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public static function clear()
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{
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global $paths, $idindex;
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// Delete the old id index
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unlink($paths->idindex);
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// Create the new id index
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file_put_contents($paths->idindex, "{}");
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// Reset the in-memory id index
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$idindex = new stdClass();
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}
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/*
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* @summary Assigns an id to a pagename. Doesn't check to make sure that
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* pagename doesn't exist in the pageindex.
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@ -2935,15 +2949,21 @@ class search
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header("content-type: text/event-stream");
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// Clear the id index out
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ids::clear();
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// Reindex each page in turn
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$invindex = [];
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foreach($pageindex as $pagename => $pagedetails)
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{
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echo("Adding $pagename to the new search index.\n\n");
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flush();
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$pagesource = utf8_encode(file_get_contents("$env->storage_prefix$pagename.md"));
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$index = self::index($pagesource);
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self::merge_into_invindex($invindex, ids::getid($pagename), $index);
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$pageid = ids::getid($pagename);
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self::merge_into_invindex($invindex, $pageid, $index);
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echo("Added $pagename (id #$pageid) to the new search index.\n\n");
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flush();
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}
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echo("Search index rebuilding complete.\n\n");
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@ -3129,12 +3149,41 @@ class search
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$pagedata["pagename"] = ids::getpagename($pageid);
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$pagedata["rank"] = 0;
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$pageOffsets = [];
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// Loop over each search term found on this page
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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"] += $entry["freq"];
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// todo rank by context here
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// Add the offsets to a listof all offsets on this page
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foreach($entry["offsets"] as $offset)
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$pageOffsets[] = $offset;
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}
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/*
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// Sort the list of offsets
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$pageOffsets = array_unique($pageOffsets);
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sort($pageOffsets);
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var_dump($pageOffsets);
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// Calcualate the clump distances via a variable moving window size
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$pageOffsetsCount = count($pageOffsets);
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$clumpDistanceWindow = min($count, $pageOffsetsCount); // a.k.a. count($query_terms) - see above
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$clumpDistances = [];
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for($i = 0; $i < $pageOffsetsCount - $clumpDistanceWindow; $i++)
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$clumpDistances[] = $pageOffsets[$i] - $pageOffsets[$i + $clumpDistanceWindow];
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// Sort the new list of clump distances
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sort($clumpDistances);
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// Calcualate a measureof how clumped the offsets are
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$tightClumpLimit = floor((count($clumpDistances) - 1) / 0.25);
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$tightClumpsMeasure = $clumpDistances[$tightClumpLimit] - $clumpDistances[0];
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$clumpsRange = $clumpDistances[count($clumpDistances) - 1] - $clumpDistances[0];
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$clumpiness = $tightClumpsMeasure / $clumpsRange;
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echo("{$pagedata["pagename"]} - $clumpiness");
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*/
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// Consider matches in the title / tags
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if(isset($pagedata["title-matches"]))
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14
core.php
14
core.php
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@ -772,6 +772,20 @@ class ids
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file_put_contents($paths->idindex, json_encode($idindex));
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}
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/**
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* Clears the id index completely. Will break the inverted search index!
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*/
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public static function clear()
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{
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global $paths, $idindex;
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// Delete the old id index
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unlink($paths->idindex);
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// Create the new id index
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file_put_contents($paths->idindex, "{}");
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// Reset the in-memory id index
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$idindex = new stdClass();
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}
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/*
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* @summary Assigns an id to a pagename. Doesn't check to make sure that
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* pagename doesn't exist in the pageindex.
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@ -86,7 +86,7 @@
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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": 1490041182,
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"lastupdate": 1490302006,
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"optional": false
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},
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{
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@ -404,15 +404,21 @@ class search
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header("content-type: text/event-stream");
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// Clear the id index out
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ids::clear();
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// Reindex each page in turn
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$invindex = [];
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foreach($pageindex as $pagename => $pagedetails)
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{
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echo("Adding $pagename to the new search index.\n\n");
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flush();
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$pagesource = utf8_encode(file_get_contents("$env->storage_prefix$pagename.md"));
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$index = self::index($pagesource);
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self::merge_into_invindex($invindex, ids::getid($pagename), $index);
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$pageid = ids::getid($pagename);
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self::merge_into_invindex($invindex, $pageid, $index);
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echo("Added $pagename (id #$pageid) to the new search index.\n\n");
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flush();
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}
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echo("Search index rebuilding complete.\n\n");
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@ -598,12 +604,41 @@ class search
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$pagedata["pagename"] = ids::getpagename($pageid);
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$pagedata["rank"] = 0;
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$pageOffsets = [];
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// Loop over each search term found on this page
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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"] += $entry["freq"];
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// todo rank by context here
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// Add the offsets to a listof all offsets on this page
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foreach($entry["offsets"] as $offset)
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$pageOffsets[] = $offset;
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}
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/*
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// Sort the list of offsets
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$pageOffsets = array_unique($pageOffsets);
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sort($pageOffsets);
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var_dump($pageOffsets);
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// Calcualate the clump distances via a variable moving window size
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$pageOffsetsCount = count($pageOffsets);
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$clumpDistanceWindow = min($count, $pageOffsetsCount); // a.k.a. count($query_terms) - see above
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$clumpDistances = [];
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for($i = 0; $i < $pageOffsetsCount - $clumpDistanceWindow; $i++)
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$clumpDistances[] = $pageOffsets[$i] - $pageOffsets[$i + $clumpDistanceWindow];
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// Sort the new list of clump distances
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sort($clumpDistances);
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// Calcualate a measureof how clumped the offsets are
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$tightClumpLimit = floor((count($clumpDistances) - 1) / 0.25);
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$tightClumpsMeasure = $clumpDistances[$tightClumpLimit] - $clumpDistances[0];
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$clumpsRange = $clumpDistances[count($clumpDistances) - 1] - $clumpDistances[0];
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$clumpiness = $tightClumpsMeasure / $clumpsRange;
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echo("{$pagedata["pagename"]} - $clumpiness");
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*/
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// Consider matches in the title / tags
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if(isset($pagedata["title-matches"]))
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