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search_helper.php
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Thu, Sep 18, 5:47 PM

search_helper.php
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<?php
/**
* @version $Id: search_helper.php 16797 2024-08-16 08:27:01Z alex $
* @package In-Portal
* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
* @license GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.org/license for copyright notices and details.
*/
defined('FULL_PATH') or die('restricted access!');
class kSearchHelper extends kHelper {
/**
* Perform Exact Search flag
*
* @var bool
* @access protected
*/
protected $_performExactSearch = true;
public function __construct()
{
parent::__construct();
$this->_performExactSearch = $this->Application->ConfigValue('PerformExactSearch');
}
/**
* Splits search phrase into keyword using quotes,plus and minus sings and spaces as split criteria
*
* @param string $keyword
* @return Array
* @access public
*/
public function splitKeyword($keyword)
{
if ( $this->Application->ConfigValue('CheckStopWords') ) {
$keyword_after_remove = $this->_removeStopWords($keyword);
if ( $keyword_after_remove ) {
// allow to search through stop word grid
$keyword = $keyword_after_remove;
}
}
$final = Array ();
$quotes_re = '/([+\-]?)"(.*?)"/';
$no_quotes_re = '/([+\-]?)([^ ]+)/';
preg_match_all($quotes_re, $keyword, $res);
foreach ($res[2] as $index => $kw) {
$final[$kw] = $res[1][$index];
}
$keyword = preg_replace($quotes_re, '', $keyword);
preg_match_all($no_quotes_re, $keyword, $res);
foreach ($res[2] as $index => $kw) {
$final[$kw] = $res[1][$index];
}
if ( $this->_performExactSearch ) {
foreach ($final AS $kw => $plus_minus) {
if ( !$plus_minus ) {
$final[$kw] = '+';
}
}
}
return $final;
}
function getPositiveKeywords($keyword)
{
$keywords = $this->splitKeyword($keyword);
$ret = Array();
foreach ($keywords as $keyword => $sign) {
if ($sign == '+' || $sign == '') {
$ret[] = $keyword;
}
}
return $ret;
}
/**
* Replace wildcards to match MySQL
*
* @param string $keyword
* @return string
*/
function transformWildcards($keyword)
{
return str_replace(Array ('%', '_', '*', '?') , Array ('\%', '\_', '%', '_'), $keyword);
}
function buildWhereClause($keyword, $fields)
{
$keywords = $this->splitKeyword( $this->transformWildcards($keyword) );
$normal_conditions = $plus_conditions = $minus_conditions = Array();
foreach ($keywords as $keyword => $sign) {
$keyword = $this->Conn->escape($keyword);
switch ($sign) {
case '+':
$plus_conditions[] = implode(" LIKE '%" . $keyword . "%' OR ", $fields) . " LIKE '%" . $keyword . "%'";
break;
case '-':
$condition = Array ();
foreach ($fields as $field) {
$condition[] = $field . " NOT LIKE '%" . $keyword . "%' OR " . $field . ' IS NULL';
}
$minus_conditions[] = '(' . implode(') AND (', $condition) . ')';
break;
case '':
$normal_conditions[] = implode(" LIKE '%" . $keyword . "%' OR ", $fields) . " LIKE '%" . $keyword . "%'";
break;
}
}
// building where clause
if ($normal_conditions) {
$where_clause = '(' . implode(') OR (', $normal_conditions) . ')';
}
else {
$where_clause = '1';
}
if ($plus_conditions) {
$where_clause = '(' . $where_clause . ') AND (' . implode(') AND (', $plus_conditions) . ')';
}
if ($minus_conditions) {
$where_clause = '(' . $where_clause . ') AND (' . implode(') AND (', $minus_conditions) . ')';
}
return $where_clause;
}
/**
* Returns additional information about search field
*
* @param kDBList $object
* @param string $field_name
* @return Array
*/
function _getFieldInformation(&$object, $field_name)
{
$sql_filter_type = $object->isVirtualField($field_name) ? 'having' : 'where';
$field_options = $object->GetFieldOptions($field_name);
$table_name = '';
$field_type = isset($field_options['type']) ? $field_options['type'] : 'string';
if (preg_match('/(.*)\.(.*)/', $field_name, $regs)) {
$table_name = '`'.$regs[1].'`.'; // field from external table
$field_name = $regs[2];
}
elseif ($sql_filter_type == 'where') {
$table_name = '`'.$object->TableName.'`.'; // field from local table
}
$table_name = ($sql_filter_type == 'where') ? $table_name : '';
// Replace wid inside table name to WID_MARK constant value.
$is_temp_table = preg_match(
'/(.*)' . TABLE_PREFIX . 'ses_[\d]+(_[\d]+){0,1}_edit_(.*)/',
$table_name,
$regs
);
// The EDIT_MARK will be replaced with sid[_main_wid] in AddFilters.
if ( $is_temp_table ) {
$table_name = $regs[1] . TABLE_PREFIX . 'ses_' . EDIT_MARK . '_edit_' . $regs[3];
}
return Array ($field_name, $field_type, $table_name, $sql_filter_type);
}
/**
* Removes stop words from keyword
*
* @param string $keyword
* @return string
*/
function _removeStopWords($keyword)
{
static $stop_words = Array ();
if (!$stop_words) {
$sql = 'SELECT StopWord
FROM ' . $this->Application->getUnitOption('stop-word', 'TableName') . '
ORDER BY LENGTH(StopWord) DESC, StopWord ASC';
$stop_words = $this->Conn->GetCol($sql);
foreach ($stop_words as $index => $stop_word) {
$stop_words[$index] = '/(^| )' . preg_quote($stop_word, '/') . '( |$)/';
}
}
$keyword = preg_replace($stop_words, ' ', $keyword);
return trim( preg_replace('/[ ]+/', ' ', $keyword) );
}
/**
* Performs new search on a given grid
*
* @param kEvent $event
* @return void
* @access public
*/
public function performSearch($event)
{
/** @var kDBItem $object */
$object = $event->getObject();
// process search keyword
$search_keyword = $this->Application->GetVar($event->getPrefixSpecial(true) . '_search_keyword');
$this->Application->StoreVar($event->getPrefixSpecial() . '_search_keyword', $search_keyword);
$custom_filter = $this->processCustomFilters($event);
if ( !$search_keyword && $custom_filter === false ) {
$this->resetSearch($event);
return ;
}
if ( $search_keyword ) {
$this->processAutomaticFilters($event, $search_keyword, $custom_filter);
}
}
/**
* Creates filtering sql clauses based on given search restrictions
*
* @param kEvent $event
* @param string $search_keyword
* @param Array $custom_filter
* @return void
*/
function processAutomaticFilters($event, $search_keyword, $custom_filter)
{
$grid_name = $this->Application->GetVar('grid_name');
$grids = $this->Application->getUnitOption($event->Prefix, 'Grids');
$search_fields = array_keys($grids[$grid_name]['Fields']);
$search_filter = Array();
/** @var kDBList $object */
$object = $event->getObject();
foreach ($search_fields as $search_field) {
$custom_search = isset($custom_filter[$search_field]);
$filter_data = $this->getSearchClause($object, $search_field, $search_keyword, $custom_search);
if ($filter_data) {
$search_filter[$search_field] = $filter_data;
}
else {
unset($search_filter[$search_field]);
}
}
$this->Application->StoreVar($event->getPrefixSpecial().'_search_filter', serialize($search_filter) );
}
/**
* Returns search clause for any particular field
*
* @param kDBList $object
* @param string $field_name
* @param string $search_keyword what we are searching (false, when building custom filter clause)
* @param string $custom_search already found using custom filter
* @return Array
*/
function getSearchClause(&$object, $field_name, $search_keyword, $custom_search)
{
if ($object->isVirtualField($field_name) && !$object->isCalculatedField($field_name)) {
// Virtual field, that is shown in grid, but it doesn't have corresponding calculated field.
// Happens, when field value is calculated on the fly (during grid display) and it is not searchable.
return '';
}
$search_keywords = $this->splitKeyword($search_keyword);
list ($field_name, $field_type, $table_name, $sql_filter_type) = $this->_getFieldInformation($object, $field_name);
$filter_value = '';
// get field clause by formatter name and/or parameters
$field_options = $object->GetFieldOptions($field_name);
$formatter = getArrayValue($field_options, 'formatter');
switch ($formatter) {
case 'kOptionsFormatter':
$search_keys = Array();
if ($custom_search === false) {
// if keywords passed through simple search filter (on each grid)
$use_phrases = getArrayValue($field_options, 'use_phrases');
$multiple = array_key_exists('multiple', $field_options) && $field_options['multiple'];
foreach ($field_options['options'] as $key => $val) {
$match_to = mb_strtolower($use_phrases ? $this->Application->Phrase($val) : $val);
foreach ($search_keywords as $keyword => $sign) {
// doesn't support wildcards
if (strpos($match_to, mb_strtolower($keyword)) === false) {
if ($sign == '+') {
$filter_value = $table_name.'`'.$field_name.'` = NULL';
break;
}
else {
continue;
}
}
if ($sign == '+' || $sign == '') {
// don't add single quotes to found option ids when multiselect (but escape string anyway)
$search_keys[$key] = $multiple ? $this->Conn->escape($key) : $this->Conn->qstr($key);
}
elseif($sign == '-') {
// if same value if found as exclusive too, then remove from search result
unset($search_keys[$key]);
}
}
}
}
if ($search_keys) {
if ($multiple) {
$filter_value = $table_name.'`'.$field_name.'` LIKE "%|' . implode('|%" OR ' . $table_name.'`'.$field_name.'` LIKE "%|', $search_keys) . '|%"';
}
else {
$filter_value = $table_name.'`'.$field_name.'` IN ('.implode(',', $search_keys).')';
}
}
$field_processed = true;
break;
case 'kDateFormatter':
// if date is searched using direct filter, then do nothing here, otherwise search using LIKE clause
$field_processed = ($custom_search !== false) ? true : false;
break;
default:
$field_processed = false;
break;
}
// if not already processed by formatter, then get clause by field type
if (!$field_processed && $search_keywords) {
switch($field_type)
{
case 'int':
case 'integer':
case 'numeric':
$search_keys = Array();
foreach ($search_keywords as $keyword => $sign) {
if (!is_numeric($keyword) || ($sign == '-')) {
continue;
}
$search_keys[] = $this->Conn->qstr($keyword);
}
if ($search_keys) {
$filter_value = $table_name.'`'.$field_name.'` IN ('.implode(',', $search_keys).')';
}
break;
case 'double':
case 'float':
case 'real':
$search_keys = Array();
foreach ($search_keywords as $keyword => $sign) {
$keyword = str_replace(',', '.', $keyword);
if (!is_numeric($keyword) || ($sign == '-')) continue;
$search_keys[] = 'ABS('.$table_name.'`'.$field_name.'` - '.$this->Conn->qstr($keyword).') <= 0.0001';
}
if ($search_keys) {
$filter_value = '('.implode(') OR (', $search_keys).')';
}
break;
case 'string':
$filter_value = $this->buildWhereClause($search_keyword, Array($table_name.'`'.$field_name.'`'));
break;
}
}
if ($filter_value) {
return Array('type' => $sql_filter_type, 'value' => $filter_value);
}
return false;
}
/**
* Processes custom filters from submit
*
* @param kEvent $event
* @return Array|bool
*/
function processCustomFilters($event)
{
$grid_name = $this->Application->GetVar('grid_name');
// update "custom filter" with values from submit: begin
$view_name = $this->Application->RecallVar($event->getPrefixSpecial().'_current_view');
$custom_filters = $this->Application->RecallPersistentVar($event->getPrefixSpecial().'_custom_filter.'.$view_name/*, ALLOW_DEFAULT_SETTINGS*/);
if ($custom_filters) {
$custom_filters = unserialize($custom_filters);
$custom_filter = isset($custom_filters[$grid_name]) ? $custom_filters[$grid_name] : Array ();
}
else {
$custom_filter = Array ();
}
// submit format custom_filters[prefix_special][field]
$submit_filters = $this->Application->GetVar('custom_filters');
if ($submit_filters) {
$submit_filters = getArrayValue($submit_filters, $event->getPrefixSpecial(), $grid_name);
if ($submit_filters) {
foreach ($submit_filters as $field_name => $field_options) {
$filter_type = key($field_options);
$field_value = $field_options[$filter_type];
$is_empty = strlen(is_array($field_value) ? implode('', $field_value) : $field_value) == 0;
if ($is_empty) {
if (isset($custom_filter[$field_name])) {
// use isset, because non-existing key will cause "php notice"!
unset($custom_filter[$field_name][$filter_type]); // remove filter
if (!$custom_filter[$field_name]) {
// if no filters left for field, then delete record at all
unset($custom_filter[$field_name]);
}
}
}
else {
$custom_filter[$field_name][$filter_type]['submit_value'] = $field_value;
}
}
}
}
if ($custom_filter) {
$custom_filters[$grid_name] = $custom_filter;
}
else {
unset($custom_filters[$grid_name]);
}
// update "custom filter" with values from submit: end
if (!$custom_filter) {
// in case when no filters specified, there are nothing to process
$this->Application->StorePersistentVar($event->getPrefixSpecial().'_custom_filter.'.$view_name, serialize($custom_filters) );
return false;
}
$object = $event->getObject(); // don't recall it each time in getCustomFilterSearchClause
$grid_info = $this->Application->getUnitOption($event->Prefix.'.'.$grid_name, 'Grids');
foreach ($custom_filter as $field_name => $field_options) {
$filter_type = key($field_options);
$field_options = $field_options[$filter_type];
$field_options['grid_options'] = $grid_info['Fields'][$field_name];
$field_options = $this->getCustomFilterSearchClause($object, $field_name, $filter_type, $field_options);
if ($field_options['value']) {
unset($field_options['grid_options']);
$custom_filter[$field_name][$filter_type] = $field_options;
}
}
$custom_filters[$grid_name] = $custom_filter;
$this->Application->StorePersistentVar($event->getPrefixSpecial().'_custom_filter.'.$view_name, serialize($custom_filters) );
return $custom_filter;
}
/**
* Checks, that range filters "To" part is defined for given grid
*
* @param string $prefix_special
* @param string $grid_name
* @return bool
*/
function rangeFiltersUsed($prefix_special, $grid_name)
{
static $cache = Array ();
$cache_key = $prefix_special . $grid_name;
if (array_key_exists($cache_key, $cache)) {
return $cache[$cache_key];
}
$view_name = $this->Application->RecallVar($prefix_special . '_current_view');
$custom_filters = $this->Application->RecallPersistentVar($prefix_special . '_custom_filter.' . $view_name/*, ALLOW_DEFAULT_SETTINGS*/);
if (!$custom_filters) {
// filters not defined for given prefix
$cache[$cache_key] = false;
return false;
}
$custom_filters = unserialize($custom_filters);
if (!is_array($custom_filters) || !array_key_exists($grid_name, $custom_filters)) {
// filters not defined for given grid
$cache[$cache_key] = false;
return false;
}
$range_filter_defined = false;
$custom_filter = $custom_filters[$grid_name];
foreach ($custom_filter as $field_name => $field_options) {
$filter_type = key($field_options);
$field_options = $field_options[$filter_type];
if (strpos($filter_type, 'range') === false) {
continue;
}
$to_value = (string)$field_options['submit_value']['to'];
if ($to_value !== '') {
$range_filter_defined = true;
break;
}
}
$cache[$cache_key] = $range_filter_defined;
return $range_filter_defined;
}
/**
* Return numeric range filter value + checking that it's number
*
* @param Array $value array containing range filter value
* @return unknown
*/
function getRangeValue($value)
{
// fix user typing error, since MySQL only sees "." as decimal separator
$value = str_replace(',', '.', $value);
return strlen($value) && is_numeric($value) ? $this->Conn->qstr($value) : false;
}
/**
* Returns filter clause
*
* @param kDBItem $object
* @param string $field_name
* @param string $filter_type
* @param Array $field_options
* @return Array
*/
function getCustomFilterSearchClause(&$object, $field_name, $filter_type, $field_options)
{
// this is usually used for mutlilingual fields and date fields
if (isset($field_options['grid_options']['sort_field'])) {
$field_name = $field_options['grid_options']['sort_field'];
}
list ($field_name, $field_type, $table_name, $sql_filter_type) = $this->_getFieldInformation($object, $field_name);
$filter_value = '';
switch ($filter_type) {
case 'range':
$from = $this->getRangeValue($field_options['submit_value']['from']);
$to = $this->getRangeValue($field_options['submit_value']['to']);
if ( $from !== false && $to !== false ) {
// add range filter
$filter_value = $table_name . '`' . $field_name . '` >= ' . $from . ' AND ' . $table_name . '`' . $field_name . '` <= ' . $to;
}
elseif ( $field_type == 'int' || $field_type == 'integer' ) {
if ( $from !== false ) {
// add equals filter on $from
$filter_value = $table_name . '`' . $field_name . '` = ' . $from;
}
elseif ( $to !== false ) {
// add equals filter on $to
$filter_value = $table_name . '`' . $field_name . '` = ' . $to;
}
}
else {
// MySQL can't compare values in "float" type columns using "=" operator
if ( $from !== false ) {
// add equals filter on $from
$filter_value = 'ABS(' . $table_name . '`' . $field_name . '` - ' . $from . ') <= 0.0001';
}
elseif ( $to !== false ) {
// add equals filter on $to
$filter_value = 'ABS(' . $table_name . '`' . $field_name . '` - ' . $to . ') <= 0.0001';
}
}
break;
case 'date_range':
$from = $this->processRangeField($object, $field_name, $field_options['submit_value'], 'from');
$to = $this->processRangeField($object, $field_name, $field_options['submit_value'], 'to');
$day_seconds = 23 * 60 * 60 + 59 * 60 + 59;
if ( is_numeric($from) && $to === null && date('H:i:s', $from) == '00:00:00' ) {
$to = $from + $day_seconds;
}
elseif ( $from === null && is_numeric($to) && date('H:i:s', $to) == '00:00:00' ) {
$from = $to;
$to += $day_seconds;
}
if ( is_numeric($from) && $to === null || $from === null && is_numeric($to) ) {
$from = $from === null ? $to : $from;
$to = $from;
}
if ( is_numeric($from) && is_numeric($to) ) {
$from = strtotime(date('Y-m-d H:i', $from) . ':00', $from);
$to = strtotime(date('Y-m-d H:i', $to) . ':59', $to);
$filter_value = $table_name.'`'.$field_name.'` >= '.$from.' AND '.$table_name.'`'.$field_name.'` <= '.$to;
}
else {
$filter_value = 'FALSE';
}
break;
case 'equals':
case 'options':
$field_value = strlen($field_options['submit_value']) ? $this->Conn->qstr($field_options['submit_value']) : false;
if ($field_value) {
$filter_value = $table_name.'`'.$field_name.'` = '.$field_value;
}
break;
case 'picker':
$field_value = strlen($field_options['submit_value']) ? $this->Conn->escape($field_options['submit_value']) : false;
if ($field_value) {
$filter_value = $table_name.'`'.$field_name.'` LIKE "%|'.$field_value.'|%"';
}
break;
case 'multioptions':
$field_value = $field_options['submit_value'];
if ( $field_value ) {
$field_value = explode('|', substr($field_value, 1, -1));
$multiple = $object->GetFieldOption($field_name, 'multiple');
$field_value = $this->Conn->qstrArray($field_value, $multiple ? 'escape' : 'qstr');
if ( $multiple ) {
$filter_value = $table_name . '`' . $field_name . '` LIKE "%|' . implode('|%" OR ' . $table_name . '`' . $field_name . '` LIKE "%|', $field_value) . '|%"';
}
else {
$filter_value = $table_name . '`' . $field_name . '` IN (' . implode(',', $field_value) . ')';
}
}
break;
case 'like':
$filter_value = $this->buildWhereClause($field_options['submit_value'], Array($table_name.'`'.$field_name.'`'));
break;
default:
break;
}
$field_options['sql_filter_type'] = $sql_filter_type;
$field_options['value'] = $filter_value;
return $field_options;
}
/**
* Enter description here...
*
* @param kdbItem $object
* @param string $search_field
* @param string $value
* @param string $type
* @param string $format_option_prefix Format option prefix.
*/
function processRangeField(&$object, $search_field, $value, $type, $format_option_prefix = '')
{
$value_by_type = $value[$type];
if ( !strlen($value_by_type) ) {
return null;
}
$options = $object->GetFieldOptions($search_field);
$dt_separator = array_key_exists('date_time_separator', $options) ? $options['date_time_separator'] : ' ';
$value_by_type = trim($value_by_type, $dt_separator); // trim any
$tmp_value = explode($dt_separator, $value_by_type, 2);
if ( count($tmp_value) == 1 ) {
$time_format = $this->_getInputTimeFormat($options, $format_option_prefix . 'time_format');
if ( $time_format ) {
// time is missing, but time format available -> guess time and add to date
$time = adodb_mktime(0, 0, 0);
$time = adodb_date($time_format, $time);
$value_by_type .= $dt_separator . $time;
}
}
/** @var kFormatter $formatter */
$formatter = $this->Application->recallObject($options['formatter']);
$format = $options[$format_option_prefix . 'format'];
$value_ts = $formatter->Parse($value_by_type, $search_field, $object, $format);
if ( $object->GetErrorPseudo($search_field) ) {
// invalid format -> ignore this date in search
$object->RemoveError($search_field);
if ( $format_option_prefix == 'input_' ) {
return false;
}
return $this->processRangeField($object, $search_field, $value, $type, 'input_');
}
return $value_ts;
}
/**
* Returns InputTimeFormat using given field options
*
* @param Array $field_options
* @param string $format_option_name Format option name.
* @return string
*/
function _getInputTimeFormat($field_options, $format_option_name = 'input_time_format')
{
if ( array_key_exists($format_option_name, $field_options) ) {
return $field_options[$format_option_name];
}
/** @var LanguagesItem $lang_current */
$lang_current = $this->Application->recallObject('lang.current');
$field_name = str_replace(' ', '', ucwords(str_replace('_', ' ', $format_option_name)));
return $lang_current->GetDBField($field_name);
}
/**
* Resets current search
*
* @param kEvent $event
*/
function resetSearch($event)
{
$this->Application->RemoveVar($event->getPrefixSpecial().'_search_filter');
$this->Application->RemoveVar($event->getPrefixSpecial().'_search_keyword');
$view_name = $this->Application->RecallVar($event->getPrefixSpecial().'_current_view');
$this->Application->RemovePersistentVar($event->getPrefixSpecial().'_custom_filter.'.$view_name);
}
/**
* Creates filters based on "types" & "except" parameters from PrintList
*
* @param kEvent $event
* @param Array $type_clauses
* @param string $types
* @param string $except_types
*/
function SetComplexFilter($event, &$type_clauses, $types, $except_types)
{
/** @var kMultipleFilter $includes_or_filter */
$includes_or_filter = $this->Application->makeClass('kMultipleFilter', Array (kDBList::FLT_TYPE_OR));
/** @var kMultipleFilter $excepts_and_filter */
$excepts_and_filter = $this->Application->makeClass('kMultipleFilter', Array (kDBList::FLT_TYPE_AND));
/** @var kMultipleFilter $includes_or_filter_h */
$includes_or_filter_h = $this->Application->makeClass('kMultipleFilter', Array (kDBList::FLT_TYPE_OR));
/** @var kMultipleFilter $excepts_and_filter_h */
$excepts_and_filter_h = $this->Application->makeClass('kMultipleFilter', Array (kDBList::FLT_TYPE_AND));
if ( $types ) {
$types = explode(',', $types);
foreach ($types as $type) {
$type = trim($type);
if ( isset($type_clauses[$type]) ) {
if ( $type_clauses[$type]['having_filter'] ) {
$includes_or_filter_h->addFilter('filter_' . $type, $type_clauses[$type]['include']);
}
else {
$includes_or_filter->addFilter('filter_' . $type, $type_clauses[$type]['include']);
}
}
}
}
if ( $except_types ) {
$except_types = explode(',', $except_types);
foreach ($except_types as $type) {
$type = trim($type);
if ( isset($type_clauses[$type]) ) {
if ( $type_clauses[$type]['having_filter'] ) {
$excepts_and_filter_h->addFilter('filter_' . $type, $type_clauses[$type]['except']);
}
else {
$excepts_and_filter->addFilter('filter_' . $type, $type_clauses[$type]['except']);
}
}
}
}
/** @var kDBList $object */
$object = $event->getObject();
$object->addFilter('includes_filter', $includes_or_filter);
$object->addFilter('excepts_filter', $excepts_and_filter);
$object->addFilter('includes_filter_h', $includes_or_filter_h, kDBList::HAVING_FILTER);
$object->addFilter('excepts_filter_h', $excepts_and_filter_h, kDBList::HAVING_FILTER);
}
/**
* Ensures empty search table
*
* @return void
*/
public function ensureEmptySearchTable()
{
$search_table = $this->getSearchTable();
$sql = 'CREATE TABLE IF NOT EXISTS ' . $search_table . ' (
`Relevance` decimal(8,5) DEFAULT NULL,
`ItemId` int(11) NOT NULL DEFAULT 0,
`ResourceId` int(11) DEFAULT NULL,
`ItemType` int(1) NOT NULL DEFAULT 0,
`EdPick` tinyint(4) NOT NULL DEFAULT 0,
KEY `ResourceId` (`ResourceId`),
KEY `Relevance` (`Relevance`)
) ENGINE = MEMORY';
$this->Conn->Query($sql);
$sql = 'TRUNCATE TABLE ' . $search_table;
$this->Conn->Query($sql);
}
/**
* Search table name
*
* @return string
*/
public function getSearchTable()
{
try {
$sid = $this->Application->GetSID(Session::PURPOSE_REFERENCE);
}
catch ( RuntimeException $e ) {
// 1. Put some real variable into session, or otherwise it won't even save to the database.
$this->Application->StoreVar('search_made', 'yes');
// 2. Create session on they fly to store search results.
$this->Application->Session->SaveData();
// 3. Get ID of the created session.
$sid = $this->Application->GetSID(Session::PURPOSE_REFERENCE);
}
return TABLE_PREFIX . 'ses_' . $sid . '_' . TABLE_PREFIX . 'Search';
}
}

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