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Merge pull request #118 from lbryio/test_effective

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added blacklist for words.
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Mark 2018-09-26 21:39:01 -04:00 committed by GitHub
commit f437ec0725
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1 changed files with 31 additions and 12 deletions
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43
server/controllers/lighthouse.js
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@ -34,6 +34,10 @@ function getResults (input) {
if (input.from + input.size > 10000) {
input.from = 10000 - input.size;
}
let trimmedQuery = input.s.trim();
let escapedQuery = getWashedQuery(getEscapedQuery(trimmedQuery));
let washedQuery = getWashedQuery(trimmedQuery);
let effectiveFactor = '0.0000000001';
// Search is split up into different parts, all search parts goes under this line.
let channelSearch;
if (input.channel !== undefined) { // If we got a channel argument, lets filter out only that channel
@ -42,7 +46,7 @@ function getResults (input) {
'must': {
'query_string': {
'fields': ['channel'],
'query' : getEscapedQuery(input.channel.trim()),
'query' : getEscapedQuery(getWashedQuery(input.channel.trim())),
},
},
},
@ -60,7 +64,7 @@ function getResults (input) {
'function_score': {
'script_score': {
'script': {
'source': "0.00000001 * doc['effective_amount'].value",
'source': `${effectiveFactor} * doc['effective_amount'].value`,
},
},
},
@ -68,7 +72,7 @@ function getResults (input) {
const matPhraseName = { // Match search text as phrase - Name
'match_phrase': {
'name': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 10,
},
},
@ -76,14 +80,14 @@ function getResults (input) {
const matTextName = { // Match search text - Name
'match': {
'name': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 5,
},
},
};
const conTermName = { // Contains search term - Name
'query_string': {
'query' : '*' + getEscapedQuery(input.s.trim()) + '*',
'query' : `*${escapedQuery}*`,
'fields': [
'name',
],
@ -98,7 +102,7 @@ function getResults (input) {
'should': [
{ // Contains search term in Author, Title, Description
'query_string': {
'query' : '*' + getEscapedQuery(input.s.trim()) + '*',
'query' : `*${escapedQuery}*`,
'fields': [
'value.stream.metadata.author',
'value.stream.metadata.title',
@ -110,7 +114,7 @@ function getResults (input) {
{ // Match search term - Author
'match': {
'value.stream.metadata.author': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 2,
},
},
@ -118,7 +122,7 @@ function getResults (input) {
{ // Match search text as phrase - Author
'match_phrase': {
'value.stream.metadata.author': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 3,
},
},
@ -126,7 +130,7 @@ function getResults (input) {
{ // Match search term - Title
'match': {
'value.stream.metadata.title': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 2,
},
},
@ -134,7 +138,7 @@ function getResults (input) {
{ // Match search text as phrase - Title
'match_phrase': {
'value.stream.metadata.title': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 3,
},
},
@ -142,7 +146,7 @@ function getResults (input) {
{ // Match search term - Description
'match': {
'value.stream.metadata.description': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 2,
},
},
@ -150,7 +154,7 @@ function getResults (input) {
{ // Match search text as phrase - Description
'match_phrase': {
'value.stream.metadata.description': {
'query': input.s.trim(),
'query': washedQuery,
'boost': 3,
},
},
@ -283,6 +287,21 @@ function getStatus () {
});
}
function getWashedQuery (query) {
// compress multiple white spaces to 1
query = query.toLowerCase().replace(/ +/g, ' ');
let badWords = [ 'from', 'with', 'not', 'can', 'all', 'are', 'for', 'but', 'and', 'the' ];
let words = query.split(' ');
let sentence = [];
words.forEach(w => {
if (!badWords.includes(w)) { sentence.push(w) }
});
query = sentence.join(' ');
// remove all words < 3 in length
return query.replace(/(\b(\w{1,2})\b(\s|$))/g, '');
}
function getEscapedQuery (query) {
// https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html#_reserved_characters
// The reserved characters are: + - = && || > < ! ( ) { } [ ] ^ " ~ * ? : \ /