Learn more about Stack Overflow the company, and our products. Is Logistic Regression a classification or prediction model? Support Developing with WordPress Trigger a form on plugin deactivation time. I suggest you find a plugin that does that if you really want to do so and see how they did it. 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. If you manually update a plug-in via PHP (some people still do), you're supposed to deactivate it before transferring files. It runs on an intermediary page, which redirects immediately before any hooks can have a chance to run. How can negative potential energy cause mass decrease? Set the activation hook for a plugin. Problems in Using Object Variable to Activate & Deactivate WordPress Hooks What is the term for a thing instantiated by saying it? The filter method returns the $links array after adding the new links By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. rev2023.6.29.43520. This table illustrates the differences between deactivation and uninstall. To learn more, see our tips on writing great answers. 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.. uninstall.php only loads when a plugin is removed or deleted from the plugins you can put any code in it to run when user deletes or uninstalls a plugin. Codex. 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 one can establish that the Earth is round? Difference between and in a sentence. 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. 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. Marks something as being incorrectly called. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. Here is what I got:-, source: https://wordpress.stackexchange.com/questions/24600/how-can-i-delete-options-with-register-uninstall-hook, For more info: http://codex.wordpress.org/Function_Reference/register_uninstall_hook, Use, register_uninstall_hook. The method, Sos_Activator::setup (), uses WordPress function register_activation_hook () to register the method that has to be invoked when plugin is activated. By sun 4 years ago. Here is the difference as stated in the Plugin Handbook: "The plugin should not run arbitrary code outside of functions, when registering the uninstall hook. BBQ Firewall basic (Id like to but cant get rid of) 2)Must read full documentation about this in. The first parameter to the registration function is the constant SOS_PLUGIN_FILE defined in the plugins' main file. . 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. Sos_Activator::action_links() is called for each and every active 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. Currently, there is no standard way of checking whether of theme is activated, deactivated and uninstalled. If I want to deactivate an installed plugin, it says plugin deactivated but after page refresh it isnt. 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. My provider assured me that there are no mechanisms that reset the db tables. WordPress Plugins . Like JNashHawkins suggests, looking at what other plugins do in the same situation can be very instructive. If you added some options you can delete it when uninstall like this: As bhuthecoder said, you should not drop tables when deactivation, it is redundant and not friendly for a user, who can lost his data after deactivation. Get WordPress Developer Resources. Does a simple syntax stack based language need a parser? database and it comes handy either for plugin support calls or during 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. Your email address will not be published. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. Here's what the process looks like on the Unix command line: Describing characters of a reductive group in terms of characters of maximal torus. Does the debt snowball outperform avalanche if you put the freed cash flow towards debt? PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'deactivate_plugin' not found. I have no evidence but I think this is the consequence of installing security plugins. WordPress Plugin Development - Can't drop database table after plugin deactivation? register_activation_hook (WordPress Function) - WPSeek.com - A The full path and filename of the file with symlinks resolved. number of the plugin in sos_common_options in WordPress database. register_uninstall_hook - WordPress Developer Resources 2 Answers Sorted by: 2 This is a bad idea!!! Selective deletion could be useful, but I guess only in cases where your post types etc could be re-used by other plugins? Getting the form in such a case could be even more annoying. Search in WordPress.org. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Share on Social Plugin, we add action link Settings, which appears On uninstall I'd like to have the tables deleted. Whether to deactivate the plugin for all sites in the network. Making statements based on opinion; back them up with references or personal experience. [--network] If set, the plugin will be deactivated for the entire multisite network. single site, it calls Sos_Activator::activate_for_blog(). For If you need to keep checking the dependency of another plugin, then you can hook the `admin_init` action to automatically deactivate the plugin should the other plugin be deactivated by administrator. If you try the method Steve suggested here: To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The constant will be defined by WordPress during the uninstall.php invocation. How to Drop Tables on Uninstall using WordPress? Forums; Guidelines; . Click "Activate" to activate it. Look like the image i added along the topic. You must log in to vote on the helpfulness of this note, https://core.trac.wordpress.org/ticket/31792. How to standardize the color-coding of several 3D and contour plots? Here is an example deleting option entries and dropping a database table: Note: It is useful to add some Call-to-Action links in the plugin section. Retrieves an option value based on an option name. A plugin is considered uninstalled if a user has deactivated the plugin, and then clicks the delete link within the WordPress Admin. Uninstalling your data however may be an after thought. If you are building a complex plugin, or one which needs its own database tables, youll likely be installing all kinds of things during activation or first run. Other than heat, A Chemical Formula for a fictional Room Temperature Superconductor. 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). There are two methods to register a plugin's uninstallation: Use the function register_uninstall_hook (), or Create an uninstall.php file in your plugin's root folder. 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. Thats very weird. #7795 (Activate and Deactivate Theme hooks) - WordPress Trac Top Parameters $plugin string Path to the plugin file relative to the plugins directory. Less experienced developers sometimes make the mistake of using the deactivation hook for this purpose. While it is true that WordPress takes care of the majority of the Browse other questions tagged. This hooks Sos_Activator::activate () as activation method. But the form i mean is just some radio buttons and submit button only. It is highly recommended to store the plugin version number in WordPress Deactivates a single plugin or multiple plugins. The problem is not version_compare, the problem is that register_activation_hook is just a shortcut for. The plugin should not run arbitrary code outside of functions, when registering the uninstall hook. 1.Am I using this function incorrectly? I changed the value of options/active plugins/option value to a:0:{}, switched to wp and all plugins were deactivated! 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. No matter what I do, the plugin activates, but the database is untouched and the options are not stored in DB. 585), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. 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. Top EXAMPLES # Description When a plugin is activated, the action 'activate_PLUGINNAME' hook is called. The deactivation hook is disabled by the plugin upgrader by using the $silent parameter. Create a new directory and name it after the plugin (e.g. Trigger a form on plugin deactivation time | WordPress.org Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I'm trying to setup some options and database tables when the plugin is activated, but no luck. 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. php - register_uninstall_hook not working on wordpress plugin uninstall any specific customizations related to the plugin. What security plugins do you have installed? IMO, what theyve done in their code is more informative than any written instruction from a plugin dev that you might get in forums like this. in this chapter we cover WordPress Plugin Activation, Deactivation and You must log in before being able to contribute a note or feedback. Here are the four steps to installing a manual plugin. while downloading and activating a fresh copy of a Twenty* theme, do you get a different result? Is it possible to register_activation_hook() outside of - WordPress.org Not the answer you're looking for? The method Sos_Activator::delete_basic_locker() finds the post_id Deactivation - WordPress Plugin Development - CodeTab document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Determines whether the plugin is active for the entire network. Frozen core Stability Calculations in G09? Australia to west & east coast US: which order is better? the array of links, that will be added to activation section, through If the plugin can not be written without running code within the plugin, then the plugin should create a file named uninstall.php in the base plugin folder. If you are not registering your function in the main plugin file. I saw that one as well, this is what I had for code and it didn't work:
On my main file, Yes, I've seen that and that is why I was asking for a solution to delete the created tables on delete rather than deactivate. You can then use its admin bar menu to turn on/off plugins and themes one at a time. Okay, I installed it, but I cant activate it (same problem as mentioned above). 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? Is there a way to use DNS to block access to my domain? 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. Codetab . Making statements based on opinion; back them up with references or personal experience. wordpress - How to run flush_rewrite_rules on plugin deactivation new default locker. Whether the plugin is deactivated for all sites in the network or just the current site. Extract the plugin folder to your desktop if downloaded as a zip archive. Not that I know of. So, I decided to deactivate it to see if it would fix the problem, and it worked. There are two kinds of hooks: Actions (Codex Action Reference) Filters (Codex Filter Reference) GDPR: Can a city request deletion of all personal data that uses a certain domain for logins? Trigger a form on plugin deactivation time. When admin reinstalls the plugin, the default basic locker created in Must be a static method or function. If I delete one of them or even the complete directory ptguard, it is reconstructed in no time with identical content! Famous papers published in annotated form? The method Sos_Activator::add_settings() adds or updates the version But from what I've read, it's better to keep the database tables information until the admin uninstalls rather than deactivates. Regards Achim. What is the right way to do this. parameter to the registration function is the constant So, are any plugins, e.g. Deactivates a plugin before it is upgraded. php - Deactivate a plugin on wp version - WordPress Development Stack activation hooks need to be registered outside of other WP hooks such as initand plugins_loadedbecause your activation function is called prior to the plugin being loaded/activated. It checks whether it WordPress site is a multisite or single site and if Method 1: register_uninstall_hook Method 2: uninstall.php Your plugin may need to do some clean-up when it is uninstalled from a site. which plugins are known to cause trouble with activating and deactivating/deleting other plugins? But this action is fired before the plugin is activated i.e. Post data could be useful to keep. In WooCommerce we now do this from the status page: This prevents accidental loss of data/angry folk with pitchforks. This site is not affiliated with the WordPress Foundation in any way. What is the status for EIGHT man endgame tablebases? Correcting this could solve the issue, as it's being called after plugin deactivation call completes (on init). 2. Uninstall, Activate, Deactivate a plugin: typical features & how-to If I want to activate an installed plugin, it says "plugin activated" but after page refresh it isn't. If I want to deactivate an installed plugin, it says "plugin deactivated" but after page refresh it isn't. Plugin installation techniques; activation, deactivation and uninstall This hooks Sos_Activator::activate() as activation method. register_activation_hook - WordPress Developer Resources LaTeX3 how to use content/value of predefined command in token list/string? Commits (0) Attachments (2) 7795.diff ( 3.9 KB) - added by DD32 14 years ago . '/wp-admin/edit.php?post_type=sos&page=sos_settings_page">Settings'. I write a hook and make a file where i delete all the values, but it did not work, i use this hook register_uninstall_hook ('foo_uninstall.php', $callback); When admin installs the plugin and activates it, WordPress as part of that points to Share on Social Settings menu. it so as to start in a clean state. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. Better like this: With function e34s_db_clients_uninstall in the uninstall.php. store this small bit of information somewhere in the database. What's the meaning (qualifications) of "machine" in GPL's "machine-readable source code"? A better approach is to use a WordPress uninstall hook. 11.4. So, what your code does is to call dw_deactivate_theme_options() when the action 'activate_' . register_activation_hook( __FILE__, 'your_plugin_activation_function' ); function your_plugin_activation_function() {. The plugin should not run arbitrary code outside of functions, when registering the uninstall hook. You might also deactivate a plug-in to test the configuration of your site. Uninstall Methods | Plugin Developer Handbook | WordPress Developer Hello, Thanks a lot, Ill try and report. 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 is a useful hook for doing things like . Multisite only. . 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. Youd need to rely upon JavaScript for interactivity anyway, so it may be better to simply add an event listener to your plugins deactivate/uninstall link which puts up an interactive form before following the link. With this background, You must log in before being able to contribute a note or feedback. 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. How to Drop Tables on Uninstall using WordPress? Multisite Installations. And require_once is redundant. Is it worth having a setting that controls the status of deleting ALL of the plugins data? They are just hooks that helps perform different actions when WordPress plugins are activated or deactivated by the user. View all references. Learn more about bidirectional Unicode characters, http://www.eggplantstudios.ca/wordpress-plugin-development-versions-updates/. Can renters take advantage of adverse possession under certain situations? I have already tried Steves suggestion. You must log in before being able to contribute a note or feedback. pages, terms. activation process calls Sos_Activator::activate() method. the previous installation may still exists in the database and we delete see image attached. WordPress Plugin Deactivation. Uninstall phases in detail and also, how to deal them in WordPress change the "table_name_to_be_dropped" by your table name. Here's the setup: my-plugin |-main.php |-activate-deactivate.php // main.php if (is_admin ()) { // I tried both of these with the same result require_once plugin_dir_path (__FILE__) . Top Parameters $plugins string | string [] Required Single plugin or list of plugins to deactivate. Fires as a specific plugin is being deactivated. 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. The message "Plugin activated" is displayed, but nothing really happens. This magic file is run automatically when the users deletes the plugin. troubles activating and deactivating/deleting plugins | WordPress.org If used In this post Ill explain techniques you can use to install and remove your data to keep things tidy, should the user decide they no longer want your plugin. WordPress lookup for register_activation_hook, a WordPress Function. share-on-social/admin/class-activator.php. On activation, plugins can run The best answers are voted up and rise to the top, Not the answer you're looking for? wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php, wp-admin/includes/class-plugin-upgrader.php, You must log in to vote on the helpfulness of this note, WP_REST_Plugins_Controller::handle_plugin_status(), Plugin_Upgrader::deactivate_plugin_before_upgrade(). Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. 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. 1 Answer Sorted by: 1 The problem is not version_compare, the problem is that register_activation_hook is just a shortcut for add_action ( 'activate_' . View all references. In the name of this hook, PLUGINNAME is replaced with the name of the plugin, including the optional subdirectory. Activation / Deactivation Hooks | Plugin Developer Handbook | WordPress Do I owe my company "fair warning" about issues that won't be solved, before giving notice? Default false. inside an include, the name of the included file is returned. 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. delete any existing basic locker and add settings. How to drop all tables in database without dropping the database itself? 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. Asking for help, clarification, or responding to other answers. passed to the filter method. [--all] If set, all plugins will be deactivated. That would be very handy. thats work for me. The plugin should not hinder the uninstallation process. Support Fixing WordPress troubles activating and deactivating/deleting plugins. 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. How to automate wordpress plugin activate and deactivate by php logic? Even when a plugin is not using the version number, it doesnt hurt to