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<?php namespace Maatwebsite\Excel\Readers;
use Closure;
use Maatwebsite\Excel\Excel;
use Maatwebsite\Excel\Exceptions\LaravelExcelException;
/**
*
* LaravelExcel Batch Importer
*
* @category Laravel Excel
* @version 1.0.0
* @package maatwebsite/excel
* @copyright Copyright (c) 2013 - 2014 Maatwebsite (http://www.maatwebsite.nl)
* @author Maatwebsite <info@maatwebsite.nl>
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
*/
class Batch {
/**
* Excel object
* @var Excel
*/
protected $excel;
/**
* Batch files
* @var array
*/
public $files = [];
/**
* Set allowed file extensions
* @var array
*/
protected $allowedFileExtensions = [
'xls',
'xlsx',
'csv'
];
/**
* Start the Batach
* @param Excel $excel
* @param array $files
* @param Closure $callback
* @return Excel
*/
public function start(Excel $excel, $files, Closure $callback)
{
// Set excel object
$this->excel = $excel;
// Set files
$this->_setFiles($files);
// Do the callback
if ($callback instanceof Closure)
{
foreach ($this->getFiles() as $file)
{
// Load the file
$excel = $this->excel->load($file);
// Do a callback with the loaded file
call_user_func($callback, $excel, $file);
}
}
// Return our excel object
return $this->excel;
}
/**
* Get the files
* @return array
*/
public function getFiles()
{
return $this->files;
}
/**
* Set the batch files
* @param array|string $files
* @throws LaravelExcelException
* @return void
*/
protected function _setFiles($files)
{
// If the param is an array, these will be the files for the batch import
if (is_array($files))
{
$this->files = $this->_getFilesByArray($files);
}
// Get all the files inside a folder
elseif (is_string($files))
{
$this->files = $this->_getFilesByFolder($files);
}
// Check if files were found
if (empty($this->files))
throw new LaravelExcelException('[ERROR]: No files were found. Batch terminated.');
}
/**
* Set files by array
* @param array $array
* @return array
*/
protected function _getFilesByArray($array)
{
$files = [];
// Make sure we have real paths
foreach ($array as $i => $file)
{
$files[$i] = realpath($file) ? $file : base_path($file);
}
return $files;
}
/**
* Get all files inside a folder
* @param string $folder
* @return array
*/
protected function _getFilesByFolder($folder)
{
// Check if it's a real path
if (!realpath($folder))
$folder = base_path($folder);
// Find path names matching our pattern of excel extensions
$glob = glob($folder . '/*.{' . implode(',', $this->allowedFileExtensions) . '}', GLOB_BRACE);
// If no matches, return empty array
if ($glob === false) return [];
// Return files
return array_filter($glob, function ($file)
{
return filetype($file) == 'file';
});
}
}