updated search query parser engine, now supporting operators OR, AND and NOT
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2b32cc0722
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@ -45,6 +45,7 @@ class Doctrine_Search_Query
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protected $_sql = '';
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protected $_condition;
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/**
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* @param octrine_Table $_table the index table
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@ -60,7 +61,7 @@ class Doctrine_Search_Query
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$this->_query = new Doctrine_Query();
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$foreignId = current(array_diff($this->_table->getColumnNames(), array('keyword', 'field', 'position')));
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$this->_condition = $foreignId . ' IN (SELECT ' . $foreignId . ' FROM ' . $this->_table->getTableName() . ' WHERE ';
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$this->_condition = $foreignId . ' %s (SELECT ' . $foreignId . ' FROM ' . $this->_table->getTableName() . ' WHERE ';
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}
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/**
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* getQuery
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@ -74,9 +75,9 @@ class Doctrine_Search_Query
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public function search($text)
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{
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$text = strtolower(trim($text));
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$text = trim($text);
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$foreignId = current(array_diff($this->_table->getColumnNames(), array('keyword', 'field', 'position')));
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$weighted = false;
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if (strpos($text, '^') === false) {
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@ -99,7 +100,7 @@ class Doctrine_Search_Query
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$this->_sql = $select . ' ' . $from . ' ' . $where . ' ' . $groupby . ' ' . $orderby;
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}
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public function parseClause($originalClause, $addCondition = false)
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public function parseClause($originalClause, $recursive = false)
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{
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$clause = Doctrine_Tokenizer::bracketTrim($originalClause);
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@ -112,15 +113,15 @@ class Doctrine_Search_Query
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$foreignId = current(array_diff($this->_table->getColumnNames(), array('keyword', 'field', 'position')));
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$terms = Doctrine_Tokenizer::sqlExplode($clause, ' OR ', '(', ')');
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$ret = array();
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if (count($terms) > 1) {
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$leavesOnly = true;
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foreach ($terms as $k => $term) {
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if ($this->isExpression($term)) {
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$ret[$k] = $this->parseClause($term);
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$ret[$k] = $this->parseClause($term, true);
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$leavesOnly = false;
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} else {
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$ret[$k] = $this->parseTerm($term);
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@ -129,50 +130,45 @@ class Doctrine_Search_Query
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$return = implode(' OR ', $ret);
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if ($leavesOnly) {
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$return = $this->_condition . $return;
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if ($leavesOnly && $recursive) {
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$return = sprintf($this->_condition, 'IN') . $return . ')';
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$brackets = false;
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}
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$brackets = false;
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} else {
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$terms = Doctrine_Tokenizer::sqlExplode($clause, ' ', '(', ')');
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foreach ($terms as $k => $term) {
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$term = trim($term);
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if ($term === 'AND') {
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continue;
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if (count($terms) === 1 && ! $recursive) {
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$return = $this->parseTerm($clause);
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} else {
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foreach ($terms as $k => $term) {
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$term = trim($term);
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if ($term === 'AND') {
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continue;
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}
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if (substr($term, 0, 1) === '-') {
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$operator = 'NOT IN';
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$term = substr($term, 1);
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} else {
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$operator = 'IN';
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}
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if ($this->isExpression($term)) {
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$ret[$k] = $this->parseClause($term, true);
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} else {
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$ret[$k] = sprintf($this->_condition, $operator) . $this->parseTerm($term) . ')';
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}
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}
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if ($this->isExpression($term)) {
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$ret[$k] = $this->parseClause($term, true);
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} else {
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$ret[$k] = $this->_condition . $this->parseTerm($term);
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}
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$ret[$k] .= ')';
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$return = implode(' AND ', $ret);
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}
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$return = implode(' AND ', $ret);
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}
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if ($brackets) {
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return '(' . $return . ')';
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} else {
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return $return;
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}
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/**
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if (strpos($term, '(') === false) {
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if (substr($term, 0, 1) === '-') {
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$operator = 'NOT IN';
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$term = substr($term, 1);
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} else {
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$operator = 'IN';
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}
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$parsed = $foreignId . ' ' . $operator . ' (SELECT ' . $foreignId . ' FROM ' . $this->_table->getTableName() . ' WHERE ' . $this->parseClause($term) . ')';
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} else {
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$parsed = $this->parseClause($term);
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}
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*/
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}
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public function isExpression($term)
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{
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@ -184,32 +180,7 @@ class Doctrine_Search_Query
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return (count($terms) > 1);
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}
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}
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public function parseTerms(array $terms)
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{
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$foreignId = current(array_diff($this->_table->getColumnNames(), array('keyword', 'field', 'position')));
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if (count($terms) > 1) {
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$ret = array();
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foreach ($terms as $term) {
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if (strpos($term, '(') === false) {
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$term = $this->parseClause($term);
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$ret[] = $foreignId . ' IN (SELECT ' . $foreignId . ' FROM ' . $this->_table->getTableName() . ' WHERE ' . $term . ')';
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}
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}
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$parsed = implode(' AND ', $ret);
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return $parsed;
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} else {
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$ret = $this->parseTerm($terms[0]);
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return $ret[0];
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}
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}
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public function parseExpression($expr)
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{
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$expr = Doctrine_Tokenizer::bracketTrim($expr);
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}
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public function parseTerm($term)
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{
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$negation = false;
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