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<?php
namespace Elastica\Filter;
/**
* Regexp filter.
*
* @author Timothy Lamb <trash80@gmail.com>
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-regexp-filter.html
*/
class Regexp extends AbstractFilter
{
/**
* Holds the name of the field for the regular expression.
*
* @var string
*/
protected $_field = '';
/**
* Holds the regexp string.
*
* @var string
*/
protected $_regexp = '';
/**
* Holds the regexp options.
*
* @var array
*/
protected $_options = array();
/**
* Create Regexp object.
*
* @param string $field Field name
* @param string $regexp Regular expression
* @param array $options Regular expression options
*
* @throws \Elastica\Exception\InvalidException
*/
public function __construct($field = '', $regexp = '', $options = array())
{
$this->setField($field);
$this->setRegexp($regexp);
$this->setOptions($options);
}
/**
* Sets the name of the regexp field.
*
* @param string $field Field name
*
* @return $this
*/
public function setField($field)
{
$this->_field = $field;
return $this;
}
/**
* Sets the regular expression query string.
*
* @param string $regexp Regular expression
*
* @return $this
*/
public function setRegexp($regexp)
{
$this->_regexp = $regexp;
return $this;
}
/**
* Sets the regular expression query options.
*
* @param array $options Regular expression options
*
* @return $this
*/
public function setOptions($options)
{
$this->_options = $options;
return $this;
}
/**
* Converts object to an array.
*
* @see \Elastica\Filter\AbstractFilter::toArray()
*
* @return array data array
*/
public function toArray()
{
if (count($this->_options) > 0) {
$options = array('value' => $this->_regexp);
$options = array_merge($options, $this->_options);
$this->setParam($this->_field, $options);
} else {
$this->setParam($this->_field, $this->_regexp);
}
return parent::toArray();
}
}
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