Retrieves an option value based on an option name. View all references. A plugin is considered uninstalled if a user has deactivated the plugin, and then clicks the delete link within the WordPress Admin. A plugin is considered uninstalled if a user has deactivated the plugin, and then clicks the delete link within the WordPress Admin. Path to the plugin file relative to the plugins directory. the best way i learned is by using uninstall.php. What i need to achieve is, on plugin deactivation time trigger a javascript form and user need to fill some feedback before deactivating the plugin. plugin activation for Multisites. What is the right way to do this. . Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. is share-on-social so that the link is added only for Share on Plugin. Problems in Using Object Variable to Activate & Deactivate WordPress Hooks There are often reasons to temporarily deactivate a plugin where the user still intends to continue using your plugin. A better approach is to use a WordPress uninstall hook. $file, $function ); where $file is plugin_basename ( __FILE__ ); and __FILE__ is your main plugin file absolute path. If the plugin was never activated, or if it was deactivated and then uninstalled, the uninstall.php file will not be run and any cleanup tasks that it was responsible for will not be performed. One or more plugins to deactivate. Why do CRT TVs need a HSYNC pulse in signal? wp_delete_post(). Top Because the version 4.0 of Wordpress doesn't exist does the logic not work? File doesnt work with symlinks (if you develop with these), but you can use (a little hacky): When using any of these functions/hooks avoid echoing any data it may cause headers already sent errors as they hooks are ran early. It means that WP will run uninstall.php and function on_uninstall in the uninstall.php when the plugin will be deleted. After plugin is fully activated, as we have already seen, the method Sos::create_post_type() registers sos custom post type and creates a Updates the value of an option that was already added. This post helped me work through it, thank you! 585), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. To set up an uninstall hook, use the register_uninstall_hook() function: To use this method you need to create an uninstall.php file inside the root folder of your plugin. Not the answer you're looking for? Log in to add feedback; So, are any plugins, e.g. Themes should support uninstall.php or uninstall hook Description (last modified by scribu ) Related tickets on extending Themes to have Plugin features: #7795 and #14849 but those deal primarily with activation and deactivation centering around 'switch_themes' action. Browse other questions tagged. This function is often used by a plugin to deactivate itself if the plugin requires the presence of certain features that are missing in environment after an administrator has activated it. You must log in before being able to contribute a note or feedback. Drop tables only when admin uninstall/delete the plugin. The deactivation hook is disabled by the plugin upgrader by using the $silent parameter. Here are the four steps to installing a manual plugin. Deactivation - WordPress Plugin Development - CodeTab I have no evidence but I think this is the consequence of installing security plugins. It only takes a minute to sign up. when the user presses delete on the admin plugins screen (if the plugin is already deactivated), WordPress runs a special file in your plugin called uninstall.php if it exists. Sos_Activator::action_links() is called for each and every active Can renters take advantage of adverse possession under certain situations? And require_once is redundant. 585), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Uninstall, Activate, Deactivate a plugin: typical features & how-to, Deactivate plugin upon deactivation of another plugin. pages, terms. Learn more about Stack Overflow the company, and our products. The plugin should not run arbitrary code outside of functions, when registering the uninstall hook. Id be very mad if I had to fill in a form to deactivate a plugin if I didnt know how to bypass that kind of silliness already. $network_deactivating bool Whether the plugin is deactivated for all sites in the network or just the current site. In Share on Social Plugin, we use Activation phase to remove stale basic Australia to west & east coast US: which order is better? Plugin activation and deactivation - WordPress Video Tutorial locker that is left over by the previous installation and also, add once plugin is activated, so as to draw admins attention to do the If a plugin is silently deactivated (such as during an update), this hook does not fire. File: wp-includes/plugin.php. Sets the uninstallation hook for a plugin. But the db table and all plugins were automatically reset to the previous set (see my following post https://wordpress.org/support/topic/troubles-activating-and-deactivating-deleting-plugins/#post-15692580). the second, probably better, way is die inside the function, in this way the plugin is not activated and you can give a feedback to users putting a message into die function: In this way plugin is not activated and users see a message, even if WordPress will say that your plugin triggered a fatal error.. Does a simple syntax stack based language need a parser? Patchstack Security basic (Id like to but cant get rid of) Themes should support uninstall.php or uninstall hook - WordPress Trac before the plugin is added to the option 'active_plugins'. How one can establish that the Earth is round? Share on Social Plugin uses the same class file class-activator.php for Measuring the extent to which two sets of vectors span the same space, Is there and science or consensus or theory about whether a black or a white visor is better for cycling? Why would a god stop using an avatar's body? I think I will have to deepdive in the plugin shield security. What i need to achieve is, on plugin deactivation time trigger a javascript form and user need to fill some feedback before deactivating the plugin. To learn more, see our tips on writing great answers. Save my name, email, and website in this browser for the next time I comment. Is Logistic Regression a classification or prediction model? The first parameter to the registration function is the constant SOS_PLUGIN_FILE defined in the plugins' main file. In the name of this hook, PLUGINNAME is replaced with the name of the plugin, including the optional subdirectory. Default false. Making statements based on opinion; back them up with references or personal experience. Top EXAMPLES # How to drop all tables in database without dropping the database itself? Correcting this could solve the issue, as it's being called after plugin deactivation call completes (on init). The link wont be active unless the plugin hooks into the action. $links parameter. Plugins have this capability and themes should also have the same to ensure that both share similar functionality. It means the same, but __FILE__ indicate current file which is working now and function on_uninstall should be in this file. Updates the value of an option that was already added for the current network. Required fields are marked *. But from what I've read, it's better to keep the database tables information until the admin uninstalls rather than deactivates. Counting Rows where values can be stored in multiple columns, Beep command with letters for notes (IBM AT + DOS circa 1984). Multisite Installations. WordPress Plugin Activation, Deactivation, and Uninstallation - Megabyte I changed the value of options/active plugins/option value to a:0:{}, switched to wp and all plugins were deactivated! The plugin, when using the uninstall.php should always check for the WP_UNINSTALL_PLUGIN constant, before executing. How to Drop Tables on Uninstall using WordPress? WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. Support Developing with WordPress Trigger a form on plugin deactivation time. Interested in functions, hooks, classes, or methods? How can I drop all tables in my database? [--all] If set, all plugins will be deactivated. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 1 Answer Sorted by: 3 You should be using only the name of the function not the function itself: register_activation_hook (__FILE__, 'sbv_activate'); register_deactivation_hook (__FILE__, 'sbv_deactivate'); WP Codex reference: http://codex.wordpress.org/Function_Reference/register_activation_hook Share Improve this answer Follow How to activate and deactivate hooks in a WordPress plugin? This hook is run immediately after any plugin is deactivated, and may be used to detect the deactivation of other plugins. This hooks Sos_Activator::activate() as activation method. Activation / Deactivation Hooks | Plugin Developer Handbook | WordPress Viewing 3 replies - 1 through 3 (of 3 total), Trigger a form on plugin deactivation time. Please ask your host if theyre involved in this. Uninstall Methods | Plugin Developer Handbook | WordPress Developer If you are not registering your function in the main plugin file. Uninstall.php is still ran when using multisite. Get WordPress; Themes; . Just sayin. What security plugins do you have installed? . I tried deactivating them by changing their directory names under wp-content/plugins/ by adding the prefix _. Regards Achim. If the plugin was never activated, or if it was deactivated and then uninstalled, the uninstall.php file will not be run and any cleanup tasks that it was responsible for will not be performed. Tried various things and what finally worked for me was changing the hook from wp_loaded to the latest possible one: wp . Open the plugins directory. By sun 4 years ago. By using $file parameter, we add action link only when base name How to standardize the color-coding of several 3D and contour plots? where $file is plugin_basename( __FILE__ ); and __FILE__ is your main plugin file absolute path. store this small bit of information somewhere in the database. Learn more about bidirectional Unicode characters, http://www.eggplantstudios.ca/wordpress-plugin-development-versions-updates/. This hooks Sos_Activator::activate () as activation method. To debug your install/uninstall functions, you could use. Here (\wp-content\shield\ptguard\plugins) i found a list of .txt files (pluginname.txt and pluginname_meta.txt) for all plugins. Browse: . The topic Trigger a form on plugin deactivation time is closed to new replies. 1)First you need to create unistall.php in your plugin root folder.This file is automatically called by wordpress when user clicks delete button.You can include your code in this file. Connect and share knowledge within a single location that is structured and easy to search. When admin reinstalls the plugin, the default basic locker created in So, what your code does is to call dw_deactivate_theme_options() when the action 'activate_' . I have already tried Steves suggestion. Checking for WP_UNINSTALL_PLUGIN is enough WordPress defines this just prior to loading your file. Open the new plugin's directory. When contacting us, please include the following information in the email: User-Agent: Mozilla/5.0 _Windows NT 10.0; Win64; x64_ AppleWebKit/537.36 _KHTML, like Gecko_ Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62, URL: wordpress.stackexchange.com/questions/25910/uninstall-activate-deactivate-a-plugin-typical-features-how-to. database and it comes handy either for plugin support calls or during WordPress lookup for register_activation_hook, a WordPress Function. Retrieve an option value for the current network based on name of option. register_deactivation_hook() | Function - Official WordPress Developer At this point you shouldnt delete data, because the plugin is still technically installed (its just inactive), but you can: Personally I tend to leave out a deactivation hook and run all removal logic during uninstall instead as this shouldnt cause any major performance issues, but if you need to use it you can hook in your deactivation function just like the activation one (for examples see here). This means your plugin would cause an option to be written on every regular page view of anonymous visitors on your website, which would be bad for performance. Multisite only. I've been looking for answers but all I seem to able to find is dropping them on deactivation. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. Hooks are provided by WordPress to allow your plugin to 'hook into' the rest of WordPress; that is, to call functions in your plugin at specific times, and thereby set your plugin in motion. Is it worth having a setting that controls the status of deleting ALL of the plugins data? There are 2 easy ways to avoid a plugin is activated under some conditions inside the function registered with register_activation_hook: this works, but users just see the page being reloaded and plugin not activated, but without any error message it's not very intuitive. Determining Plugin and Content Directories, Hooking WP-Cron Into the System Task Scheduler. WordPress Plugin Development - Can't drop database table after plugin deactivation? If I deactivate an installed plugin (message plugin deactivated) and click uninstall without page refresh it says You cant uninstall a plugin, that is still active on the main page.. You must log in to vote on the helpfulness of this note, https://core.trac.wordpress.org/ticket/31792. The page I need help with: [log in to see the link]. Not that I know of. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. there are two ways to do this operation on plugin uninstall/delete. which plugins are known to cause trouble with activating and deactivating/deleting other plugins? plugin-name.php ). Selective deletion could be useful, but I guess only in cases where your post types etc could be re-used by other plugins? share-on-social/admin/class-activator.php. There are few things to check or perform when a user activates a plugin. Please try manually. Is it legal to bill a company that made contact for a business proposal, then withdrew based on their policies that existed when they made contact? Your plugin may need to do some clean-up when it is uninstalled from a site. sarankumar. Activation and deactivation hooks provide ways to perform actions when plugins are activated or deactivated. WP then commented that the plugin was deactivated due to an error because the plugin file could not be found. I do also have the version option I need to uninstall with it. If you believe this to be in error, please contact us at team@stackexchange.com. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. Marks something as being incorrectly called. What's the meaning (qualifications) of "machine" in GPL's "machine-readable source code"? In order to run using the hook, the plugin will have to be included, which means that any code laying outside of a function will be run during the uninstallation process. The plugin should not run arbitrary code outside of functions, when registering the uninstall hook. A quick and easy way to do this would be to register multiple activation hooks in order, for example: You can use the same technique to flush permalinks after installing a custom post type too which is also in that snippet, which calls flush_rewrite_rules after weve installed. Plugin installation techniques; activation, deactivation and uninstall activation process calls Sos_Activator::activate() method. 'activate-deactivate.php'; // or require_once WP_PLUGIN_DIR . In this tutorial, we use WordPress Plugin Uninstall hook to clean up the entities created by the plugin with uninstall.php mechanism provided by WordPress. Uninstall phases in detail and also, how to deal them in WordPress passed to the filter method. This magic file is run automatically when the users deletes the plugin. On uninstall I'd like to have the tables deleted. The first Don't drop tables when admin deactivates the plugin , as Users normally deactivates all plugins to troubleshoot the wordpress errors after fixing they will reactivate the plugins again,if you drop tables at that time they will loose all your plugin settings that configured by admin .Also while upgrading wordpress automatically deactivates all plugins and reactivates after successful upgrade. Activation / Deactivation Hooks | Plugin Developer Handbook | WordPress Instructions to delete tables while unistalling: use register_deactivation_hook. Thats very weird. View all references. action links the plugin activation section. File: wp-admin/includes/plugin.php. Connect and share knowledge within a single location that is structured and easy to search. So the data again being saved back with the add_rewrite_rule (). It checks whether it WordPress site is a multisite or single site and if Perform Uninstall hook inside register_activation_hook, It is very important to only register the uninstall hook once upon activation, because register_uninstall_hook() writes an option each time it is called. On deactivation, plugins can run a routine to remove temporary data such as cache and temp files and directories. The link won't be active unless the plugin hooks into the action. Skip to content. plugin. rev2023.6.29.43520. Plugin API - WordPress Codex Protein databank file chain, segment and residue number modifier. My provider assured me that there are no mechanisms that reset the db tables. In the next section, we install WordPress Multisite and learn to code At this point youll most commonly want to delete any stored data your plugin may have made so the DB is left clean. Calls the callback functions that have been added to an action hook. If you are installing some default terms or custom post types, youll need to ensure the post types are registered prior to running your code. register_activation_hook( __FILE__, 'your_post_type_registration_function', 10 ); register_activation_hook( __FILE__, 'your_plugin_activation_function', 15 ); register_activation_hook( __FILE__, 'flush_rewrite_rules', 20 ); Create some initial data i.e. The callback to run when the hook is called. During plugin activation you may need to setup your plugins initial data, and do things such as: To hook in your activation function, youll need to register it with the register_activation_hook function. This can lead to plugin-specific data being left behind in the database, which can cause problems if the plugin is re-installed at a later time. To learn more, see our tips on writing great answers. So, I decided to deactivate it to see if it would fix the problem, and it worked. Whether to deactivate the plugin for all sites in the network. WordPress is a trademark of the WordPress Foundation, registered in the US and other countries. Dropping all Tables from Mysql Database except few with PHP same with tables and columns, Short story about a man sacrificing himself to fix a solar sail. Thanks a lot, Ill try and report. while downloading and activating a fresh copy of a Twenty* theme, do you get a different result? Using an uninstall.php file to handle plugin uninstallation can be problematic because it relies on the plugin being properly installed and activated before it can be run. The best answers are voted up and rise to the top, Not the answer you're looking for? Specifically I care for the dynamic_images module. It is useful to add some Call-to-Action links in the plugin section. The full path and filename of the file with symlinks resolved. Making statements based on opinion; back them up with references or personal experience. It runs on an intermediary page, which redirects immediately before any hooks can have a chance to run. https://wordpress.stackexchange.com/questions/24600/how-can-i-delete-options-with-register-uninstall-hook, http://codex.wordpress.org/Function_Reference/register_uninstall_hook, How Bloombergs engineers built a culture of knowledge sharing, Making computer science more humane at Carnegie Mellon (ep. 2. Forums; Guidelines; . It must be a WP issue in combination with installed plugins. One day Id like to see a way for WP to flag whether or not data should be removed so its user-optional, until then you need to handle this yourself. Toggle navigation wpseek.com. 9 I'm trying to develop my first Wordpress plugin and I got staled in the very first stage. php - Deactivate a plugin on wp version - WordPress Development Stack Check out the new WordPress Code Reference! Through the $file parameter plugins base name is Support Fixing WordPress troubles activating and deactivating/deleting plugins. that points to Share on Social Settings menu. If youre using a premium theme, perhaps it keeps re-activating the plugins it (thinks) it needs. Skimming through the code makes apparent the issue is in a lack of differentiation between deactivate vs uninstall, which are 2 separate hooks. View all references. https://wordpress.org/support/topic/troubles-activating-and-deactivating-deleting-plugins/#post-15692429 By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Idiom for someone acting extremely out of character. I've creating a theme options page at the moment and was playing around with this function deactivate_plugins() I'm running wordpress 3.8.3 so running this code in my plugin should uninstall it. Uninstall - WordPress Plugin Development - CodeTab Post data could be useful to keep. PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'deactivate_plugin' not found.