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<?php
namespace Bitrix\Landing\Source;
use Bitrix\Main;
abstract class DataLoader
{
protected $config = [
'select' => [],
'filter' => [],
'order' => [],
'limit' => 0,
'internal_filter' => []
];
protected $options = [];
/** @var Seo */
protected $seo = null;
public function __construct()
{
$this->seo = new Seo();
}
/**
* @param array $config
* @return void
*/
public function setConfig(array $config)
{
if (empty($config))
{
return;
}
$this->config = array_merge($this->config, $config);
}
/**
* @param array $options
* @return void
*/
public function setOptions(array $options)
{
if (empty($options))
{
return;
}
$this->options = array_merge($this->options, $options);
}
/**
* @return array
*/
abstract public function getElementListData();
/**
* @param mixed $element
* @return array
*/
abstract public function getElementData($element);
/**
* @param mixed $filter
* @return array
*/
public function normalizeFilter($filter)
{
if (!is_array($filter))
{
return [];
}
if (empty($filter))
{
return $filter;
}
$result = [];
foreach ($filter as $row)
{
if (empty($row) || !is_array($row))
{
continue;
}
if (empty($row['key']) || empty($row['value']) || !is_array($row['value']))
{
continue;
}
$result[] = $row;
}
unset($row);
if (!empty($result))
{
Main\Type\Collection::sortByColumn($result, ['key' => SORT_ASC]);
}
return $result;
}
/**
* @param mixed $filter
* @return string
*/
public function calculateFilterHash($filter)
{
if (!is_array($filter))
{
$filter = [];
}
return md5(serialize($filter));
}
/**
* @param mixed $filter
* @return string
*/
public function getFilterHash($filter)
{
return $this->calculateFilterHash($this->normalizeFilter($filter));
}
/**
* Returns showed fields list, if exists.
*
* @return array|null
*/
protected function getSelectFields()
{
return $this->getSettingsValue('select');
}
/**
* Returns showed fields prepared list.
*
* @return array
*/
protected function getPreparedSelectFields()
{
$result = [];
$fields = $this->getSelectFields();
if (!empty($fields) && is_array($fields))
{
foreach ($fields as $row)
{
if (empty($row) || !is_array($row) || empty($row['id']))
{
continue;
}
$result[] = $row['id'];
}
unset($row);
}
return $result;
}
/**
* Returns user filter, if exists.
*
* @return array|null
*/
protected function getFilter()
{
return $this->getSettingsValue('filter');
}
/**
* Returns prepared filter.
*
* @param array $fields
* @return array
*/
protected function getPreparedFilter(array $fields)
{
$result = [];
$filter = $this->getFilter();
if (!empty($filter) && is_array($filter))
{
$dataFilter = new DataFilter();
$dataFilter->setFields($fields);
$result = $dataFilter->create($filter);
unset($dataFilter);
}
return $result;
}
/**
* Returns element order.
*
* @return array|null
*/
protected function getOrder()
{
return $this->getSettingsValue('order');
}
/**
* Returns max element count for showing.
*
* @return int
*/
protected function getLimit()
{
return (int)$this->getSettingsValue('limit');
}
/**
* Returns additional user-uncontrolled filter. Can be absent.
*
* @return array|null
*/
protected function getInternalFilter()
{
return $this->getSettingsValue('internal_filter');
}
/**
* Returns settings option, if exists.
*
* @param string $index Option name.
* @return mixed|null
*/
protected function getSettingsValue($index)
{
$index = trim((string)$index);
if ($index === '')
{
return null;
}
if (!empty($this->config[$index]))
{
return $this->config[$index];
}
return null;
}
/**
* Returns additinal option value, if exists.
*
* @param string $index Option name.
* @return mixed|null
*/
protected function getOptionsValue($index)
{
$index = trim((string)$index);
if ($index === '')
{
return null;
}
if (!empty($this->options[$index]))
{
return $this->options[$index];
}
return null;
}
/**
* @return Seo
*/
public function getSeo()
{
return $this->seo;
}
/**
* @param string $name
* @return string|null
*/
public function getSeoProperty($name)
{
return $this->seo->getProperty($name);
}
/**
* @return string|null
*/
public function getSeoTitle()
{
return $this->getSeoProperty(Seo::TITLE);
}
}