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<?php
/**
* This file is part of the League.csv library
*
* @license http://opensource.org/licenses/MIT
* @link https://github.com/thephpleague/csv/
* @version 7.2.0
* @package League.csv
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\Csv\Plugin;
use InvalidArgumentException;
/**
* A class to manage column consistency on data insertion into a CSV
*
* @package League.csv
* @since 7.0.0
*
*/
class ColumnConsistencyValidator
{
/**
* The number of column per row
*
* @var int
*/
private $columns_count = -1;
/**
* should the class detect the column count based the inserted row
*
* @var bool
*/
private $detect_columns_count = false;
/**
* Set Inserted row column count
*
* @param int $value
*
* @throws InvalidArgumentException If $value is lesser than -1
*
*/
public function setColumnsCount($value)
{
if (false === filter_var($value, FILTER_VALIDATE_INT, ['options' => ['min_range' => -1]])) {
throw new InvalidArgumentException('the column count must an integer greater or equals to -1');
}
$this->detect_columns_count = false;
$this->columns_count = $value;
}
/**
* Column count getter
*
* @return int
*/
public function getColumnsCount()
{
return $this->columns_count;
}
/**
* The method will set the $columns_count property according to the next inserted row
* and therefore will also validate the next line whatever length it has no matter
* the current $columns_count property value.
*
*/
public function autodetectColumnsCount()
{
$this->detect_columns_count = true;
}
/**
* Is the submitted row valid
*
* @param array $row
*
* @return bool
*/
public function __invoke(array $row)
{
if ($this->detect_columns_count) {
$this->columns_count = count($row);
$this->detect_columns_count = false;
return true;
} elseif (-1 == $this->columns_count) {
return true;
}
return count($row) == $this->columns_count;
}
}
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