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<?php
namespace Bitrix\Disk\Volume;
use Bitrix\Main\Application;
use Bitrix\Disk\Internals\ObjectTable;
use Bitrix\Disk\Internals\ObjectPathTable;
use \Bitrix\Main\Entity\Query;
class QueryHelper
{
/**
* Gets select fields as SQL code.
* @param array $selectFields Selected fields.
* @return string
*/
public static function prepareSelect(array $selectFields)
{
$select = array();
foreach ($selectFields as $alias => $statement)
{
$select[] = "$statement as $alias";
}
$selectSql = '';
if (count($select))
{
$selectSql = ', '. implode(', ', $select);
}
return $selectSql;
}
/**
* Get filter parameters as SQL code.
* @param array $filterFields Gets filter parameters.
* @param array $filterAlias Aliases for the filter fields.
* @return string
*/
public static function prepareWhere(array $filterFields, array $filterAlias = array())
{
$sqlHelper = Application::getConnection()->getSqlHelper();
$where = array();
$logic = 'AND';
// todo: wrap it into recursive
foreach ($filterFields as $key => $val)
{
if ($key === 'LOGIC')
{
$logic = $val;
continue;
}
$operator = '=';
if (!is_numeric($key))
{
if (preg_match("/^([=<>!@%]+)([^=<>!@%]+)$/", $key, $parts))
{
list(, $operator, $key) = $parts;
}
if (is_array($val) && !isset($val['LOGIC']))
{
if ($operator === '=')
{
$operator = '@';
}
elseif ($operator === '!')
{
$operator = '!@';
}
}
if (isset($filterAlias[$key]))
{
$key = $filterAlias[$key];
}
}
switch ($operator)
{
case '!':
$where[] = "$key != '". $sqlHelper->forSql($val). "'";
break;
case '%':
$where[] = "$key LIKE '%". $sqlHelper->forSql($val). "%'";
break;
case '!%':
$where[] = "$key NOT LIKE '%". $sqlHelper->forSql($val). "%'";
break;
case '@':
{
if (is_array($val) && count($val) > 0)
{
$val = array_map(array($sqlHelper, 'forSql'), $val);
$where[] = "$key IN('".implode("', '", $val)."')";
}
elseif (is_string($val) && strlen($val) > 0)
{
$where[] = "$key IN(".$val.')';
}
break;
}
case '!@':
{
if (is_array($val) && count($val) > 0)
{
$val = array_map(array($sqlHelper, 'forSql'), $val);
$where[] = "$key NOT IN('".implode("', '", $val)."')";
}
elseif (is_string($val) && strlen($val) > 0)
{
$where[] = "$key NOT IN(".$val.')';
}
break;
}
default:
{
if (is_array($val))// && isset($val['LOGIC']))// && $val['LOGIC'] === 'OR')// OR condition
{
$subLogic = 'AND';
if (isset($val['LOGIC']) && $val['LOGIC'] === 'OR')
{
$subLogic = 'OR';
unset($val['LOGIC']);
}
//$val = array_pop($val);
$condition = array();
foreach ($val as $k => $v)
{
$subOperator = '=';
if (preg_match("/^([=<>!@%]+)([^=<>!@%]+)$/", $k, $parts))
{
list(, $subOperator, $k) = $parts;
}
if (isset($filterAlias[$k]))
{
$k = $filterAlias[$k];
}
switch ($subOperator)
{
case '!':
$condition[] = "$k != '".$sqlHelper->forSql($v)."'";
break;
case '%':
$condition[] = "$k LIKE '%".$sqlHelper->forSql($v)."%'";
break;
case '!%':
$condition[] = "$k NOT LIKE '%".$sqlHelper->forSql($v)."%'";
break;
default:
$condition[] = "$k $subOperator '".$sqlHelper->forSql($v)."'";
}
}
$where[] = '('.implode(" $subLogic ", $condition).')';
}
else
{
$where[] = "$key $operator '".$sqlHelper->forSql($val)."'";
}
break;
}
}
}
$whereSql = '';
if (count($where))
{
$whereSql = ' AND '. implode(" $logic ", $where);
}
return $whereSql;
}
/**
* Gets group by fields as SQL code.
* @param array $groupByFields Group by fields.
* @return string
*/
public static function prepareGroupBy(array $groupByFields)
{
$groupBySql = '';
if (count($groupByFields))
{
$groupBySql = ', '. implode(', ', $groupByFields);
}
return $groupBySql;
}
/**
* Gets sort order fields as SQL code.
* @param string[] $orderFields Order fields set.
* @param string[] $fieldAlias Aliases for the order fields.
* @return string
*/
public static function prepareOrder(array $orderFields, array $fieldAlias = array())
{
$order = array();
foreach ($orderFields as $field => $direction)
{
if (isset($fieldAlias[$field]))
{
$field = $fieldAlias[$field];
}
$order[] = "$field $direction";
}
$orderSql = '';
if (count($order))
{
$orderSql = ' '. implode(', ', $order);
}
return $orderSql;
}
/**
* Gets fields to insert as SQL code.
* @param string[] $columns Insert fields.
* @param array $selectFields Selected fields.
* @return string
*/
public static function prepareInsert(array $columns, array $selectFields = array())
{
$sqlHelper = Application::getConnection()->getSqlHelper();
$columns = array_flip($columns);
foreach ($selectFields as $alias => $statement)
{
$columns[$alias] = '';
}
if (isset($columns['CREATE_TIME']))
{
$columns['CREATE_TIME'] = new \Bitrix\Main\Type\DateTime();
}
$tableName = \Bitrix\Disk\Internals\VolumeTable::getTableName();
list($columnList, , ) = $sqlHelper->prepareInsert($tableName, $columns);
return $columnList;
}
/**
* Gets fields for UPDATE query based on SELECT as SQL code.
* @param string[] $columns Update fields.
* @param array $selectFields Selected fields.
* @param string $tableAlias Destination table alias.
* @param string $selectAlias Source query alias.
* @return string
*/
public static function prepareUpdateOnSelect(array $columns, array $selectFields, $tableAlias = 'dest', $selectAlias = 'src')
{
$sqlHelper = Application::getConnection()->getSqlHelper();
foreach ($selectFields as $alias => $statement)
{
if (!in_array($alias, $columns))
{
$columns[] = $alias;
}
}
$tableName = \Bitrix\Disk\Internals\VolumeTable::getTableName();
$tableFields = Application::getConnection()->getTableFields($tableName);
$columnList = array();
foreach ($columns as $columnName)
{
if (isset($tableFields[$columnName]))
{
$columnName = $sqlHelper->quote($columnName);
$columnList[] = "$tableAlias.$columnName = $selectAlias.$columnName";
}
}
return implode(', ', $columnList);
}
/**
* Gets SQL query code for folder tree structure.
* @param int $parentId Top parent folder.
* @return string
*/
public static function prepareFolderTreeQuery($parentId)
{
$subQuery = new Query(ObjectPathTable::getEntity());
$subQuery
->registerRuntimeField('folder', array(
'data_type' => '\Bitrix\Disk\Internals\ObjectTable',
'reference' => array(
'=this.OBJECT_ID' => 'ref.ID',
),
'join_type' => 'INNER',
))
->addSelect('OBJECT_ID')
->addFilter('=folder.TYPE', ObjectTable::TYPE_FOLDER)// type folder
//->addFilter('=folder.DELETED_TYPE', ObjectTable::DELETED_TYPE_NONE)// not deleted
->addFilter('=folder.ID', new \Bitrix\Main\DB\SqlExpression('disk_internals_object_path_folder.REAL_OBJECT_ID'))// not link
->addFilter('=PARENT_ID', $parentId)
;
return $subQuery->getQuery();
}
}