5 require_once(CONST_BasePath.'/lib/TokenCountry.php');
6 require_once(CONST_BasePath.'/lib/TokenHousenumber.php');
7 require_once(CONST_BasePath.'/lib/TokenPostcode.php');
8 require_once(CONST_BasePath.'/lib/TokenSpecialTerm.php');
9 require_once(CONST_BasePath.'/lib/TokenWord.php');
10 require_once(CONST_BasePath.'/lib/SpecialSearchOperator.php');
13 * Saves information about the tokens that appear in a search query.
15 * Tokens are sorted by their normalized form, the token word. There are different
16 * kinds of tokens, represented by different Token* classes. Note that
17 * tokens do not have a common base class. All tokens need to have a field
18 * with the word id that points to an entry in the `word` database table
19 * but otherwise the information saved about a token can be very different.
21 * There are two different kinds of token words: full words and partial terms.
23 * Full words start with a space. They represent a complete name of a place.
24 * All special tokens are normally full words.
26 * Partial terms have no space at the beginning. They may represent a part of
27 * a name of a place (e.g. in the name 'World Trade Center' a partial term
28 * would be 'Trade' or 'Trade Center'). They are only used in TokenWord.
32 // List of list of tokens indexed by their word_token.
33 private $aTokens = array();
36 * Check if there are tokens for the given token word.
38 * @param string $sWord Token word to look for.
40 * @return bool True if there is one or more token for the token word.
42 public function contains($sWord)
44 return isset($this->aTokens[$sWord]);
48 * Get the list of tokens for the given token word.
50 * @param string $sWord Token word to look for.
52 * @return object[] Array of tokens for the given token word or an
53 * empty array if no tokens could be found.
55 public function get($sWord)
57 return isset($this->aTokens[$sWord]) ? $this->aTokens[$sWord] : array();
61 * Add token information from the word table in the database.
63 * @param object $oDB Database connection.
64 * @param string[] $aTokens List of tokens to look up in the database.
65 * @param string[] $aCountryCodes List of country restrictions.
66 * @param string $sNormQuery Normalized query string.
67 * @param object $oNormalizer Normalizer function to use on tokens.
71 public function addTokensFromDB(&$oDB, &$aTokens, &$aCountryCodes, $sNormQuery, $oNormalizer)
73 // Check which tokens we have, get the ID numbers
74 $sSQL = 'SELECT word_id, word_token, word, class, type, country_code,';
75 $sSQL .= ' operator, coalesce(search_name_count, 0) as count';
76 $sSQL .= ' FROM word WHERE word_token in (';
77 $sSQL .= join(',', array_map('getDBQuoted', $aTokens)).')';
79 Debug::printSQL($sSQL);
81 $aDBWords = chksql($oDB->getAll($sSQL), 'Could not get word tokens.');
83 foreach ($aDBWords as $aWord) {
85 $iId = (int) $aWord['word_id'];
87 if ($aWord['class']) {
88 // Special terms need to appear in their normalized form.
90 $sNormWord = $aWord['word'];
91 if ($oNormalizer != null) {
92 $sNormWord = $oNormalizer->transliterate($aWord['word']);
94 if (strpos($sNormQuery, $sNormWord) === false) {
99 if ($aWord['class'] == 'place' && $aWord['type'] == 'house') {
100 $oToken = new Token\HouseNumber($iId, trim($aWord['word_token']));
101 } elseif ($aWord['class'] == 'place' && $aWord['type'] == 'postcode') {
103 && pg_escape_string($aWord['word']) == $aWord['word']
105 $oToken = new Token\Postcode(
108 $aWord['country_code']
112 // near and in operator the same at the moment
113 $oToken = new Token\SpecialTerm(
117 $aWord['operator'] ? Operator::NONE : Operator::NEAR
120 } elseif ($aWord['country_code']) {
121 // Filter country tokens that do not match restricted countries.
123 || in_array($aWord['country_code'], $aCountryCodes)
125 $oToken = new Token\Country($iId, $aWord['country_code']);
128 $oToken = new Token\Word(
130 $aWord['word'][0] != ' ',
131 (int) $aWord['count']
136 $this->addToken($aWord['word_token'], $oToken);
142 * Add a new token for the given word.
144 * @param string $sWord Word the token describes.
145 * @param object $oToken Token object to add.
149 public function addToken($sWord, $oToken)
151 if (isset($this->aTokens[$sWord])) {
152 $this->aTokens[$sWord][] = $oToken;
154 $this->aTokens[$sWord] = array($oToken);
158 public function debugTokenByWordIdList()
160 $aWordsIDs = array();
161 foreach ($this->aTokens as $sToken => $aWords) {
162 foreach ($aWords as $aToken) {
163 if ($aToken->iId !== null) {
164 $aWordsIDs[$aToken->iId] =
165 '#'.$sToken.'('.$aToken->iId.')#';
173 public function debugInfo()
175 return $this->aTokens;