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Magento 2 image upload system configuration

Today we talk about how in Magento 2 image upload system configuration. This tutorial include image upload in system configuration. Sometime you need to add general image for a module, a company logo , a marker or a custom theme. With the help of following code you would be able to add a single image in system configurations.

Add the image field in system configuration.

<field id="image" translate="label comment" type="image" sortOrder="50" showInDefault="1" showInWebsite="1" showInStore="1">
                    <label>Store Image</label>
                    <backend_model>QaisarSatti\HelloWorld\Model\Config\Backend\Image</backend_model>
                      <base_url type="media" scope_info="1">image</base_url>
 </field>

Now create model for image upload.

<?php

namespace QaisarSatti\HelloWorld\Model\Config\Backend;

class Image extends \Magento\Config\Model\Config\Backend\Image
{
    /**
     * The tail part of directory path for uploading
     *
     */

    const UPLOAD_DIR = 'store'; // Folder save image

    /**
     * Return path to directory for upload file
     *
     * @return string
     * @throw \Magento\Framework\Exception\LocalizedException
     */

    protected function _getUploadDir()
    {
        return $this->_mediaDirectory->getAbsolutePath($this->_appendScopeInfo(self::UPLOAD_DIR));
    }

    /**
     * Makes a decision about whether to add info about the scope.
     *
     * @return boolean
     */

    protected function _addWhetherScopeInfo()
    {
        return true;
    }

    /**
     * Getter for allowed extensions of uploaded files.
     *
     * @return string[]
     */

    protected function _getAllowedExtensions()
    {
        return ['jpg', 'jpeg', 'gif', 'png', 'svg'];
    }
}
Author: Qaisar Satti
Category: Magento 2
Last Modified: July 12, 2018