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75 lines
2.0 KiB
75 lines
2.0 KiB
11 years ago
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<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\sphinx;
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/**
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* Class QueryBuilder
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*
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* @author Paul Klimov <klimov.paul@gmail.com>
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* @since 2.0
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*/
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class QueryBuilder extends \yii\db\mysql\QueryBuilder
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{
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/**
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* Generates a SELECT SQL statement from a [[Query]] object.
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* @param Query $query the [[Query]] object from which the SQL statement will be generated
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* @return array the generated SQL statement (the first array element) and the corresponding
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* parameters to be bound to the SQL statement (the second array element).
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*/
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public function build($query)
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{
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$params = $query->params;
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$clauses = [
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$this->buildSelect($query->select, $query->distinct, $query->selectOption),
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$this->buildFrom($query->from),
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$this->buildWhere($query->where, $params),
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$this->buildGroupBy($query->groupBy),
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$this->buildWithin($query->within),
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$this->buildOrderBy($query->orderBy),
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$this->buildLimit($query->limit, $query->offset),
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$this->buildOption($query->options),
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];
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return [implode($this->separator, array_filter($clauses)), $params];
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}
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/**
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* @param array $columns
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* @return string the ORDER BY clause built from [[query]].
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*/
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public function buildWithin($columns)
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{
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if (empty($columns)) {
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return '';
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}
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$orders = [];
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foreach ($columns as $name => $direction) {
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if (is_object($direction)) {
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$orders[] = (string)$direction;
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} else {
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$orders[] = $this->db->quoteColumnName($name) . ($direction === Query::SORT_DESC ? ' DESC' : '');
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}
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}
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return 'WITHIN GROUP ORDER BY ' . implode(', ', $orders);
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}
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/**
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* @param array $options
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* @return string the OPTION clause build from [[query]]
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*/
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public function buildOption(array $options)
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{
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if (empty($options)) {
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return '';
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}
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$optionLines = [];
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foreach ($options as $name => $value) {
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$optionLines[] = $name . ' = ' . $value;
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}
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return 'OPTION ' . implode(', ', $optionLines);
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}
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}
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