{"id":339069,"date":"2022-06-10T11:58:57","date_gmt":"2022-06-10T11:58:57","guid":{"rendered":"https:\/\/webkul.com\/blog\/?p=339069"},"modified":"2022-06-10T12:13:09","modified_gmt":"2022-06-10T12:13:09","slug":"how-to-write-upgrade-script-in-prestashop-module","status":"publish","type":"post","link":"https:\/\/webkul.com\/blog\/how-to-write-upgrade-script-in-prestashop-module\/","title":{"rendered":"How to write upgrade script in PrestaShop module"},"content":{"rendered":"\n

In this blog, we are going to show you how to write an upgrade script in the PrestaShop module.<\/p>\n\n\n\n

To easily update the module to a newer version without losing any data of the module.<\/p>\n\n\n\n

\"How
Module Structure<\/figcaption><\/figure>\n\n\n\n

You have to create an upgrade folder inside your module as shown in the above image.<\/p>\n\n\n\n

Let’s suppose your current module version is 1.0.0 and you are developing a new version of the same module suppose 1.1.0. <\/p>\n\n\n\n

Now you need to alter a few columns in the previous DB table, need to register a new hook, have to create a new table or need to add any data in DB.<\/p>\n\n\n\n

For upgrading modules without losing any data PrestaShop provides a solution to write your own upgrade script. <\/p>\n\n\n\n

Firstly, you have to just create a folder name upgrade<\/strong> in the module folder having the next upcoming version upgrade file as upgrade-1.1.0.php<\/strong><\/p>\n\n\n\n

    <?php\n    function upgrade_module_1_1_0($module)\n    {\n        $queries = array(\n            "ALTER TABLE `"._DB_PREFIX_."wk_demo`\n            `extra_column` varchar(255) DEFAULT NULL AFTER `old_column`"        \n        );\n        $db = Db::getInstance();\n        $success = true;\n        foreach ($queries as $query) {\n            $success &= $db->execute($query);\n        } \n        $module->registerHook('displayHeader');\n        $module->registerHook('actionFrontControllerSetMedia');\n        return true;\n    }<\/pre>\n\n\n\n
Here we have shown an example for altering a table and adding a new column in DB and registering a few hooks which are not registered previously in the module.<\/p>\n\n\n\n
At last, if you are releasing another updated version for the module you have to create the file as upgrade-2.0.0.php<\/strong> and follow the same rule.<\/p>\n\n\n\n
When someone tries to update directly from version 1.0.0 to 2.0.0 then PrestaShop executes the upgrade file script one by one for each version in ascending order.<\/p>\n\n\n\n
That\u2019s all.<\/p>\n\n\n\n
If you are facing any issues or doubts in the above process, please feel free to contact us through the comment section.<\/p>\n\n\n\n
I would be happy to help.<\/p>\n\n\n\n
Also, you can explore our PrestaShop Development Services<\/a> and a large range of quality PrestaShop Modules<\/a>.<\/p>\n\n\n\n
For any doubt contact us at support@webkul.com<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
In this blog, we are going to show you how to write an upgrade script in the PrestaShop module. To easily update the module to a newer version without losing any data of the module. You have to create an upgrade folder inside your module as shown in the above image. Let’s suppose your current […]<\/a><\/p>\n","protected":false},"author":386,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[209],"tags":[4126,2859,289,270,269],"class_list":["post-339069","post","type-post","status-publish","format-standard","hentry","category-prestashop","tag-prestashop-1-7","tag-prestashop-blog","tag-prestashop-module","tag-prestashop-module-development","tag-prestashop-module-installation"],"yoast_head":"\nHow to write upgrade script in PrestaShop module - Webkul Blog<\/title>\n<meta name=\"description\" content=\"How to write upgrade script for PrestaShop module to updated it to newer version without loosing data from older version of module.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/webkul.com\/blog\/how-to-write-upgrade-script-in-prestashop-module\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to write upgrade script in PrestaShop module - Webkul Blog\" \/>\n<meta property=\"og:description\" content=\"How to write upgrade script for PrestaShop module to updated it to newer version without loosing data from older version of module.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/webkul.com\/blog\/how-to-write-upgrade-script-in-prestashop-module\/\" \/>\n<meta property=\"og:site_name\" content=\"Webkul Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/webkul\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-10T11:58:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-06-10T12:13:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/webkul.com\/blog\/wp-content\/uploads\/2022\/06\/Screenshot-from-2022-06-10-15-37-27.png\" \/>\n<meta name=\"author\" content=\"Vineet Kr. 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