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Make search pages lookup constant time

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Helder Pereira 2021-08-29 16:11:11 +01:00
parent 00e6ca63bc
commit 4e08a7b5a4
1 changed files with 12 additions and 12 deletions
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24
static/js/search.js
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@ -9,7 +9,7 @@ function initLunr() {
// Set up lunrjs by declaring the fields we use // Set up lunrjs by declaring the fields we use
// Also provide their boost level for the ranking // Also provide their boost level for the ranking
lunrIndex = lunr(function() { lunrIndex = lunr(function() {
this.ref('uri'); this.ref('index');
this.field('title', { this.field('title', {
boost: 15 boost: 15
}); });
@ -24,7 +24,8 @@ function initLunr() {
this.searchPipeline.remove(lunr.stemmer); this.searchPipeline.remove(lunr.stemmer);
// Feed lunr with each file and let lunr actually index them // Feed lunr with each file and let lunr actually index them
pagesIndex.forEach(function(page) { pagesIndex.forEach(function(page, idx) {
page.index = idx;
this.add(page); this.add(page);
}, this); }, this);
}) })
@ -45,9 +46,7 @@ function search(queryTerm) {
// Find the item in our index corresponding to the lunr one to have more info // Find the item in our index corresponding to the lunr one to have more info
var searchTerm = queryTerm.match(/\w+/g).map(word => word + '^100' + ' ' + word + '*^10' + ' ' + '*' + word + '^10' + ' ' + word + '~2^1').join(' '); var searchTerm = queryTerm.match(/\w+/g).map(word => word + '^100' + ' ' + word + '*^10' + ' ' + '*' + word + '^10' + ' ' + word + '~2^1').join(' ');
return lunrIndex.search(searchTerm).map(function(result) { return lunrIndex.search(searchTerm).map(function(result) {
return pagesIndex.filter(function(page) { return { index: result.ref };
return page.uri === result.ref;
})[0];
}); });
} }
@ -63,21 +62,22 @@ $(function() {
}, },
/* renderItem displays individual search results */ /* renderItem displays individual search results */
renderItem: function(item, term) { renderItem: function(item, term) {
var page = pagesIndex[item.index];
var numContextWords = 2; var numContextWords = 2;
var text = item.content.match( var text = page.content.match(
'(?:\\s?(?:[\\w]+)\\s?){0,' + numContextWords + '}' + '(?:\\s?(?:[\\w]+)\\s?){0,' + numContextWords + '}' +
term.trim() + '(?:\\s?(?:[\\w]+)\\s?){0,' + numContextWords + '}'); term.trim() + '(?:\\s?(?:[\\w]+)\\s?){0,' + numContextWords + '}');
item.context = text; var context = text;
var divcontext = document.createElement('div'); var divcontext = document.createElement('div');
divcontext.className = 'context'; divcontext.className = 'context';
divcontext.innerText = (item.context || ''); divcontext.innerText = (context || '');
var divsuggestion = document.createElement('div'); var divsuggestion = document.createElement('div');
divsuggestion.className = 'autocomplete-suggestion'; divsuggestion.className = 'autocomplete-suggestion';
divsuggestion.setAttribute('data-term', term); divsuggestion.setAttribute('data-term', term);
divsuggestion.setAttribute('data-title', item.title); divsuggestion.setAttribute('data-title', page.title);
divsuggestion.setAttribute('data-uri', baseUri + item.uri); divsuggestion.setAttribute('data-uri', baseUri + page.uri);
divsuggestion.setAttribute('data-context', item.context); divsuggestion.setAttribute('data-context', context);
divsuggestion.innerText = '» ' + item.title; divsuggestion.innerText = '» ' + page.title;
divsuggestion.appendChild(divcontext); divsuggestion.appendChild(divcontext);
return divsuggestion.outerHTML; return divsuggestion.outerHTML;
}, },