How to create zip of folder and download zip in magento 2?

Question

I want to create and download zip of a folder in my custom module. I followed this link, but getting fatal error Uncaught Error: Class 'Vendor\Module\Controller\Custom\ZipArchive' not found.

How to accomplish this. please help.

Answer 1

You can create a model file in your module.

File: MageExt/Download/Model/CustomDownload.php

<?php

namespace MageExt\Download\Model;

class CustomDownload
{
    protected $directoryList;
    protected $driver;
    protected $fileFactory;

    public function __construct(
        \Magento\Framework\App\Filesystem\DirectoryList $directoryList,
        \Magento\Framework\Shell\Driver $driver,
        \Magento\Framework\App\Response\Http\FileFactory $fileFactory
    )
    {
        $this->directoryList = $directoryList;
        $this->driver = $driver;
        $this->fileFactory = $fileFactory;
    }

    public function downloadCustomDocs()
    {
        if (!class_exists('\ZipArchive')) {
            die('ZipArchive class not found');
        }

        $dir = $this->directoryList->getPath(\Magento\Framework\App\Filesystem\DirectoryList::ROOT);
        //chdir($dir.'/app/code/CustomDocs');
        $rootPath = $dir.'/app/code/CustomDocs';
        chdir($rootPath);
        //$this->driver->execute('zip -r ../CustomDocs.zip *', []);
        $zip = new \ZipArchive();
        $zip->open('CustomDocs.zip', \ZipArchive::CREATE | \ZipArchive::OVERWRITE);

        $files = new \RecursiveIteratorIterator(
            new \RecursiveDirectoryIterator($rootPath),
            \RecursiveIteratorIterator::LEAVES_ONLY
        );

        foreach ($files as $name => $file)
        {
            // Skip directories (they would be added automatically)
            if (!$file->isDir())
            {
                // Get real and relative path for current file
                $filePath = $file->getRealPath();
                $relativePath = substr($filePath, strlen($rootPath) + 1);

                // Add current file to archive
                $zip->addFile($filePath, $relativePath);
            }
        }

        $zip->close();

        $this->fileFactory->create(
                'CustomDocs.zip',
                [
                    'type' => 'filename',
                    'value' => $dir.'/app/code/CustomDocs/CustomDocs.zip',
                    'rm' => true
                ],
                \Magento\Framework\App\Filesystem\DirectoryList::ROOT,
                'application/zip'
            );
    }
}

Now you can call downloadCustomDocs() function from anywhere in your module.

Answer 2

Whenever there is any structural (class added or class name/reference modified) in your modeule: Or Any JS/Less file contents change in your theme: You need to build your static content again and setup compile again as well. (There is a set of commands for this already)

Otherwise your changes will not be picked..