To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Cologne and Frankfurt), Can you pack these pentacubes to form a rectangular block with at least one odd side length other the side whose length must be a multiple of 5. It is important to The method, Sos_Activator::setup(), uses WordPress function thats work for me. Multisite Does the debt snowball outperform avalanche if you put the freed cash flow towards debt? 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. Plugin activation and deactivation - WordPress Tutorial . 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. WP then commented that the plugin was deactivated due to an error because the plugin file could not be found. 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. see image attached. . I changed the value of options/active plugins/option value to a:0:{}, switched to wp and all plugins were deactivated! The callback to run when the hook is called. Famous papers published in annotated form? Commits (0) Attachments (2) 7795.diff ( 3.9 KB) - added by DD32 14 years ago . (@sarankumar) 2 years, 10 months ago. Thanks for contributing an answer to Stack Overflow! Or just specific data like the WC custom post types? Learn how your comment data is processed. Deactivate or uninstall? 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. Open the plugins directory. Why do CRT TVs need a HSYNC pulse in signal? But from what I've read, it's better to keep the database tables information until the admin uninstalls rather than deactivates. While it is true that WordPress takes care of the majority of the Updates the value of an option that was already added. Even when a plugin is not using the version number, it doesnt hurt to Not the answer you're looking for? Log In; Register; News; Download & Extend. Id be a bit peeved if I had to fill in a form to activate one after bothering to download and install it for that matter. If you temporarily disable those plugins, do the problems go away? Checking for WP_UNINSTALL_PLUGIN is enough WordPress defines this just prior to loading your file. GDPR: Can a city request deletion of all personal data that uses a certain domain for logins? What was the symbol used for 'one thousand' in Ancient Rome? 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. You must log in before being able to contribute a note or feedback. [--network] If set, the plugin will be deactivated for the entire multisite network. 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. This hooks Sos_Activator::activate () as activation method. It means the same, but __FILE__ indicate current file which is working now and function on_uninstall should be in this file. Find centralized, trusted content and collaborate around the technologies you use most. Like JNashHawkins suggests, looking at what other plugins do in the same situation can be very instructive. The plugin should not run arbitrary code outside of functions, when registering the uninstall hook. In WooCommerce we now do this from the status page: This prevents accidental loss of data/angry folk with pitchforks. 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. If you can install plugins, install Health Check: https://wordpress.org/plugins/health-check/ On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while youre still logged in, without affecting normal visitors to your site. How to delete existing tables in wordpress database. the array of links, that will be added to activation section, through WordPress plugin to your desktop. Default false. No matter what I do, the plugin activates, but the database is untouched and the options are not stored in DB. In short you are trying to deactivate a plugin that is not yet active and so your function does nothing. Describing characters of a reductive group in terms of characters of maximal torus. When your plugin is uninstalled, youll want to clear out any plugin options and/or settings specific to the plugin, and/or other database entities such as tables. My provider assured me that there are no mechanisms that reset the db tables. How to standardize the color-coding of several 3D and contour plots? Hey I had a to do a really quick fix on my plugin today because the activate hooks werent firing on updates. View all references. To learn more, see our tips on writing great answers. On refresh all plugins were active again and when i looked at the db table, the previous value was back again! I do also have the version option I need to uninstall with it. Search in WordPress.org. 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. 585), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. Top EXAMPLES # File: wp-admin/includes/plugin.php. See http://www.wpbeginner.com/plugins/how-to-deactivate-all-plugins-when-not-able-to-access-wp-admin/, Hi Steve! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. There are few things to check or perform when a user activates a plugin. The page I need help with: [log in to see the link]. Skimming through the code makes apparent the issue is in a lack of differentiation between deactivate vs uninstall, which are 2 separate hooks. If I want to activate an installed plugin, it says plugin activated but after page refresh it isnt. They are just hooks that helps perform different actions when WordPress plugins are activated or deactivated by the user. The link won't be active unless the plugin hooks into the action. In the previous blogs, we installed WordPress Multisite and learned to code plugin multisite activation. How to drop all tables in database without dropping the database itself? Is it worth having a setting that controls the status of deleting ALL of the plugins data? Is Logistic Regression a classification or prediction model? . next chapter. A plugin is considered uninstalled if a user has deactivated the plugin, and then clicks the delete link within the WordPress Admin. You must log in before being able to contribute a note or feedback. The activation hook runs when the plugin is activated from the plugins page in the admin area. If I delete one of them or even the complete directory ptguard, it is reconstructed in no time with identical content! Australia to west & east coast US: which order is better? Other than heat, A Chemical Formula for a fictional Room Temperature Superconductor. Description If a plugin is silently deactivated (such as during an update), this hook does not fire. sarankumar. 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. If you try the method Steve suggested here: is share-on-social so that the link is added only for Share on Plugin. Anyway, there are both deactivation and uninstall PHP hooks you can use, but they are more intended for cleaning up anything your plugin needs to do, not necessarily for user interaction. This post helped me work through it, thank you! So, I decided to deactivate it to see if it would fix the problem, and it worked. Sets the uninstallation hook for a plugin. '/wp-admin/edit.php?post_type=sos&page=sos_settings_page">Settings'. The topic Trigger a form on plugin deactivation time is closed to new replies. $silent bool Optional Prevent calling deactivation hooks. plugin. 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. Whether to deactivate the plugin for all sites in the network. Counting Rows where values can be stored in multiple columns, Beep command with letters for notes (IBM AT + DOS circa 1984). Specifically I care for the dynamic_images module. Dropping the plug-in's database tables every time you deactivate will cause you to lose your data! In Multisite, looping through all blogs to delete options can be very resource intensive. database and it comes handy either for plugin support calls or during Deactivates a single plugin or multiple plugins. 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. Making statements based on opinion; back them up with references or personal experience. 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. Activation and deactivation hooks provide ways to perform actions when plugins are activated or deactivated. Frozen core Stability Calculations in G09? Save my name, email, and website in this browser for the next time I comment. new default locker. WordPress Plugin Deactivation follows similar pattern but in Share on Social Plugin it has some minor twists. register_activation_hook () is called in-between the user clicking on the activation link and consequently seeing the activation notice. Does the debt snowball outperform avalanche if you put the freed cash flow towards debt? Selective deletion could be useful, but I guess only in cases where your post types etc could be re-used by other plugins? SOS_PLUGIN_FILE defined in the plugins main file. delete any existing basic locker and add settings. security plugins, known to save db tables from being changed by resetting them? But this action is fired before the plugin is activated i.e. Do I owe my company "fair warning" about issues that won't be solved, before giving notice? In the name of this hook, PLUGINNAME is replaced with the name of the plugin, including the optional subdirectory. Your email address will not be published. Okay, I installed it, but I cant activate it (same problem as mentioned above). Determining Plugin and Content Directories, Hooking WP-Cron Into the System Task Scheduler. This table illustrates the differences between deactivation and uninstall. before the plugin is added to the option 'active_plugins'. View all references. rev2023.6.29.43520. So, you can rename the file if you want, you can rename the function. the plugin main file share-on-social.php. Create a new PHP file (it's also good to name this file after your plugin, e.g. It means that WP will run uninstall.php and function on_uninstall in the uninstall.php when the plugin will be deleted. I've been looking for answers but all I seem to able to find is dropping them on deactivation. [-exclude=<name>] Comma separated list of plugin slugs that should be excluded from deactivation. See method number 2 here: https://www.wpbeginner.com/plugins/how-to-deactivate-all-plugins-when-not-able-to-access-wp-admin/. Sos_Activator::action_links() is called for each and every active The filter method returns the $links array after adding the new links So, are any plugins, e.g. i have developed a plugin and trying to collect some feedback from my users on plugin deactivation time. Making statements based on opinion; back them up with references or personal experience. How one can establish that the Earth is round? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Correcting this could solve the issue, as it's being called after plugin deactivation call completes (on init). that points to Share on Social Settings menu. Retrieves an option value based on an option name. Patchstack Security basic (Id like to but cant get rid of) To the filter method Sos_Activator::action_links(), WordPress passes Please try manually. How can I drop all tables in my database? 'activate-deactivate.php'; // or require_once WP_PLUGIN_DIR . Trigger a form on plugin deactivation time. There are often reasons to temporarily deactivate a plugin where the user still intends to continue using your plugin. Skip to content. This file will be called, if it exists, during the uninstallation process bypassing the uninstall hook. 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. Protein databank file chain, segment and residue number modifier. in this chapter we cover WordPress Plugin Activation, Deactivation and What security plugins do you have installed? 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. After trying to purge the cache, I realized W3 Total Cache was causing the problem. The method Sos_Activator::delete_basic_locker() finds the post_id The topic troubles activating and deactivating/deleting plugins is closed to new replies. Sets the deactivation hook for a plugin. Check out the new WordPress Code Reference! 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. Uber in Germany (esp. You may: Uninstall.php needs to be protected you dont want someone viewing that file directly and triggering an uninstall maliciously. action links the plugin activation section. Less experienced developers sometimes make the mistake of using the deactivation hook for this purpose. Uninstall.php is still ran when using multisite. $plugin is fired. 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. while downloading and activating a fresh copy of a Twenty* theme, do you get a different result? Here's what the process looks like on the Unix command line: Just sayin. Support. note that when Installed Plugin page is opened the filter method It runs on an intermediary page, which redirects immediately before any hooks can have a chance to run. 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). The page I need help with: [log in to see the link]. how to deactivate a plugin without using a WP function? Idiom for someone acting extremely out of character. Set the activation hook for a plugin. Description When a plugin is activated, the action 'activate_PLUGINNAME' hook is called. How can I remove all tables from mySQL database with phpAdmin? Updates the value of an option that was already added for the current network. It must be a WP issue in combination with installed plugins. The constant will be defined by WordPress during the uninstall.php invocation. Calls the callback functions that have been added to an action hook. 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.. Drop tables only when admin uninstall/delete the plugin. If you are not registering your function in the main plugin file. Hello, The method, Sos_Activator::setup (), uses WordPress function register_activation_hook () to register the method that has to be invoked when plugin is activated. plugin activation for Multisites. it so as to start in a clean state. 2. The plugin should not hinder the uninstallation process. You should not make uninstall.php as bhuthecoder said. Stack Exchange network consists of 182 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. How to automate wordpress plugin activate and deactivate by php logic? Tried various things and what finally worked for me was changing the hook from wp_loaded to the latest possible one: wp . register_activation_hook() Thats very weird. Nope, there isnt a way. And require_once is redundant. 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. LaTeX3 how to use content/value of predefined command in token list/string? I cant disable them the normal way. Thanks a lot, Ill try and report. Multisite only. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. This site is not affiliated with the WordPress Foundation in any way. Can renters take advantage of adverse possession under certain situations? Determines whether the plugin is active for the entire network. There are two kinds of hooks: Actions (Codex Action Reference) Filters (Codex Filter Reference) Well, I got many results when I googled this issue. Understanding the installation sequence is important because it prevents using methods you may be used to. Im looking some right-way to do this from an expert wordpress developer who did this already. of the locker id basic and delete the post using WordPress function Through the $file parameter plugins base name is 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. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. activation hooks only run when the plugin is activated not during plugin updates. If I want to deactivate an installed plugin, it says plugin deactivated but after page refresh it isnt. File: wp-admin/includes/plugin.php. Path to the plugin file relative to the plugins directory. Create a new directory and name it after the plugin (e.g. 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. Multisite only. View all references. Support Fixing WordPress troubles activating and deactivating/deleting plugins. Getting the form in such a case could be even more annoying. Connect and share knowledge within a single location that is structured and easy to search. Post data could be useful to keep. customize the plugins activation and deactivation. Instructions to delete tables while unistalling: use register_deactivation_hook. With this background, On activation, plugins can run 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. 1 add_rewrite_rule () method is flushing rewrite with init. activation and deactivation process, these phases are ideal to carryout document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Get the instance for storing paused plugins. Required fields are marked *. 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. Whether the plugin is deactivated for all sites in the network or just the current site. WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. '/my-plugin/activate-deactivate.php'; } To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. The constant is NOT defined when uninstall is performed by register_uninstall_hook() . For 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. At this point youll most commonly want to delete any stored data your plugin may have made so the DB is left clean. The Plugin name in the docs is referring to the plugin_basename, the relative path for your plugin itself. If you believe this to be in error, please contact us at team@stackexchange.com. This is obviously a wrong approach, docs. Forums; Guidelines; . 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.. why does music become less harmonic if we transpose it down to the extreme low end of the piano? Here is an example deleting option entries and dropping a database table: Note: You might also deactivate a plug-in to test the configuration of your site. 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. plugin-name ). Regards Achim. 11.4. [--all] If set, all plugins will be deactivated. Currently, there is no standard way of checking whether of theme is activated, deactivated and uninstalled. Open the new plugin's directory. The method Sos_Activator::add_settings() adds or updates the version 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? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. WordPress is a trademark of the WordPress Foundation, registered in the US and other countries. 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. The problem is that init hook not working inside of registering hooks. WordPress filter hook plugin_action_links is used to add the To learn more, see our tips on writing great answers. The link wont be active unless the plugin hooks into the action. $file, $function ); where $file is plugin_basename ( __FILE__ ); and __FILE__ is your main plugin file absolute path. This may be a plugin or theme conflict. Plugins have this capability and themes should also have the same to ensure that both share similar functionality. Get WordPress; Themes; . What is the right way to do this. which plugins are known to cause trouble with activating and deactivating/deleting other plugins? the previous installation may still exists in the database and we delete The message "Plugin activated" is displayed, but nothing really happens. 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. The deactivation hook is disabled by the plugin upgrader by using the $silent parameter. 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. If youre using a premium theme, perhaps it keeps re-activating the plugins it (thinks) it needs. 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. On deactivation, plugins can run a routine to remove temporary data such as cache and temp files and directories. Uninstalling your data however may be an after thought. When admin installs the plugin and activates it, WordPress as part of File: wp-includes/plugin.php. the best way i learned is by using uninstall.php. 1 Hi there i make a plugin, now i want that when a user deactivate the plugin, all the functions and posts and option values and meta values also be deleted. To get started, click on Plugins in your dashboard sidebar. Share on Social Plugin, we add action link Settings, which appears If used for details check http://codex.wordpress.org/Function_Reference/register_uninstall_hook. WordPress Plugin Development - Can't drop database table after plugin deactivation? It Registers the uninstall hook that will be called when the user clicks on the uninstall link that calls for the plugin to uninstall itself, any specific customizations related to the plugin. When admin reinstalls the plugin, the default basic locker created in i have developed a plugin and trying to collect some feedback from my users on plugin deactivation time. I tried deactivating them by changing their directory names under wp-content/plugins/ by adding the prefix _. Get WordPress Skip to content. For example, if your plugin resides in wp-content/plugins/my-custom-plugin/my-custom-plugin.php, the plugin_basename youd use for this function is my-custom-plugin/my-custom-plugin.php. single site, it calls Sos_Activator::activate_for_blog(). 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. If you manually update a plug-in via PHP (some people still do), you're supposed to deactivate it before transferring files. Interested in functions, hooks, classes, or methods? Extract the plugin folder to your desktop if downloaded as a zip archive. Registers the uninstall hook that will be called when the user clicks on the uninstall link that calls for the plugin to uninstall itself. OOP: Display warning and deactivate the plugin if PHP version is less than 5.4, Activate and deactivate plugin automatically. - Shazzad Feb 15, 2014 at 0:02 Deactivates a plugin before it is upgraded. inside an include, the name of the included file is returned. 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. Asking for help, clarification, or responding to other answers. In the previous blogs, we customized activation and deactivation phases for the plugin. To debug your install/uninstall functions, you could use. You are right. How Bloombergs engineers built a culture of knowledge sharing, Making computer science more humane at Carnegie Mellon (ep. The first parameter to the registration function is the constant SOS_PLUGIN_FILE defined in the plugins' main file. In Share on Social Plugin, we use Activation phase to remove stale basic Learn more about bidirectional Unicode characters, http://www.eggplantstudios.ca/wordpress-plugin-development-versions-updates/. 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? 2)Must read full documentation about this in. @yodarunamok 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. Share on Social Plugin uses the same class file class-activator.php for 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. Thanks for contributing an answer to WordPress Development Stack Exchange! This occurs when the user deactivates your plugin from admin.
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. Activation and deactivation hooks provide ways to perform actions when plugins are activated or deactivated. Frozen core Stability Calculations in G09? Save my name, email, and website in this browser for the next time I comment. new default locker. WordPress Plugin Deactivation follows similar pattern but in Share on Social Plugin it has some minor twists. register_activation_hook () is called in-between the user clicking on the activation link and consequently seeing the activation notice. Does the debt snowball outperform avalanche if you put the freed cash flow towards debt? Selective deletion could be useful, but I guess only in cases where your post types etc could be re-used by other plugins? SOS_PLUGIN_FILE defined in the plugins main file. delete any existing basic locker and add settings. security plugins, known to save db tables from being changed by resetting them? But this action is fired before the plugin is activated i.e. Do I owe my company "fair warning" about issues that won't be solved, before giving notice? In the name of this hook, PLUGINNAME is replaced with the name of the plugin, including the optional subdirectory. Your email address will not be published. Okay, I installed it, but I cant activate it (same problem as mentioned above). Determining Plugin and Content Directories, Hooking WP-Cron Into the System Task Scheduler. This table illustrates the differences between deactivation and uninstall. before the plugin is added to the option 'active_plugins'. View all references. rev2023.6.29.43520. So, you can rename the file if you want, you can rename the function. the plugin main file share-on-social.php. Create a new PHP file (it's also good to name this file after your plugin, e.g. It means that WP will run uninstall.php and function on_uninstall in the uninstall.php when the plugin will be deleted. I've been looking for answers but all I seem to able to find is dropping them on deactivation. [-exclude=<name>] Comma separated list of plugin slugs that should be excluded from deactivation. See method number 2 here: https://www.wpbeginner.com/plugins/how-to-deactivate-all-plugins-when-not-able-to-access-wp-admin/. Sos_Activator::action_links() is called for each and every active The filter method returns the $links array after adding the new links So, are any plugins, e.g. i have developed a plugin and trying to collect some feedback from my users on plugin deactivation time. Making statements based on opinion; back them up with references or personal experience. How one can establish that the Earth is round? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Correcting this could solve the issue, as it's being called after plugin deactivation call completes (on init). that points to Share on Social Settings menu. Retrieves an option value based on an option name. Patchstack Security basic (Id like to but cant get rid of) To the filter method Sos_Activator::action_links(), WordPress passes Please try manually. How can I drop all tables in my database? 'activate-deactivate.php'; // or require_once WP_PLUGIN_DIR . Trigger a form on plugin deactivation time. There are often reasons to temporarily deactivate a plugin where the user still intends to continue using your plugin. Skip to content. This file will be called, if it exists, during the uninstallation process bypassing the uninstall hook. 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. Protein databank file chain, segment and residue number modifier. in this chapter we cover WordPress Plugin Activation, Deactivation and What security plugins do you have installed? 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. After trying to purge the cache, I realized W3 Total Cache was causing the problem. The method Sos_Activator::delete_basic_locker() finds the post_id The topic troubles activating and deactivating/deleting plugins is closed to new replies. Sets the deactivation hook for a plugin. Check out the new WordPress Code Reference! 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. Uber in Germany (esp. You may: Uninstall.php needs to be protected you dont want someone viewing that file directly and triggering an uninstall maliciously. action links the plugin activation section. Less experienced developers sometimes make the mistake of using the deactivation hook for this purpose. Uninstall.php is still ran when using multisite. $plugin is fired. 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. while downloading and activating a fresh copy of a Twenty* theme, do you get a different result? Here's what the process looks like on the Unix command line: Just sayin. Support. note that when Installed Plugin page is opened the filter method It runs on an intermediary page, which redirects immediately before any hooks can have a chance to run. 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). The page I need help with: [log in to see the link]. how to deactivate a plugin without using a WP function? Idiom for someone acting extremely out of character. Set the activation hook for a plugin. Description When a plugin is activated, the action 'activate_PLUGINNAME' hook is called. How can I remove all tables from mySQL database with phpAdmin? Updates the value of an option that was already added for the current network. It must be a WP issue in combination with installed plugins. The constant will be defined by WordPress during the uninstall.php invocation. Calls the callback functions that have been added to an action hook. 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.. Drop tables only when admin uninstall/delete the plugin. If you are not registering your function in the main plugin file. Hello, The method, Sos_Activator::setup (), uses WordPress function register_activation_hook () to register the method that has to be invoked when plugin is activated. plugin activation for Multisites. it so as to start in a clean state. 2. The plugin should not hinder the uninstallation process. You should not make uninstall.php as bhuthecoder said. Stack Exchange network consists of 182 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. How to automate wordpress plugin activate and deactivate by php logic? Tried various things and what finally worked for me was changing the hook from wp_loaded to the latest possible one: wp . register_activation_hook() Thats very weird. Nope, there isnt a way. And require_once is redundant. 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. LaTeX3 how to use content/value of predefined command in token list/string? I cant disable them the normal way. Thanks a lot, Ill try and report. Multisite only. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. This site is not affiliated with the WordPress Foundation in any way. Can renters take advantage of adverse possession under certain situations? Determines whether the plugin is active for the entire network. There are two kinds of hooks: Actions (Codex Action Reference) Filters (Codex Filter Reference) Well, I got many results when I googled this issue. Understanding the installation sequence is important because it prevents using methods you may be used to. Im looking some right-way to do this from an expert wordpress developer who did this already. of the locker id basic and delete the post using WordPress function Through the $file parameter plugins base name is 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. If you are creating an install class, you can register your hook in its constructor, if its constructed right away. activation hooks only run when the plugin is activated not during plugin updates. If I want to deactivate an installed plugin, it says plugin deactivated but after page refresh it isnt. File: wp-admin/includes/plugin.php. Path to the plugin file relative to the plugins directory. Create a new directory and name it after the plugin (e.g. 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. Multisite only. View all references. Support Fixing WordPress troubles activating and deactivating/deleting plugins. Getting the form in such a case could be even more annoying. Connect and share knowledge within a single location that is structured and easy to search. Post data could be useful to keep. customize the plugins activation and deactivation. Instructions to delete tables while unistalling: use register_deactivation_hook. With this background, On activation, plugins can run 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. 1 add_rewrite_rule () method is flushing rewrite with init. activation and deactivation process, these phases are ideal to carryout document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Get the instance for storing paused plugins. Required fields are marked *. 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. Whether the plugin is deactivated for all sites in the network or just the current site. WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. '/my-plugin/activate-deactivate.php'; } To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. The constant is NOT defined when uninstall is performed by register_uninstall_hook() . For 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. At this point youll most commonly want to delete any stored data your plugin may have made so the DB is left clean. The Plugin name in the docs is referring to the plugin_basename, the relative path for your plugin itself. If you believe this to be in error, please contact us at team@stackexchange.com. This is obviously a wrong approach, docs. Forums; Guidelines; . 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.. why does music become less harmonic if we transpose it down to the extreme low end of the piano? Here is an example deleting option entries and dropping a database table: Note: You might also deactivate a plug-in to test the configuration of your site. 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. plugin-name ). Regards Achim. 11.4. [--all] If set, all plugins will be deactivated. Currently, there is no standard way of checking whether of theme is activated, deactivated and uninstalled. Open the new plugin's directory. The method Sos_Activator::add_settings() adds or updates the version 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? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. WordPress is a trademark of the WordPress Foundation, registered in the US and other countries. 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. The problem is that init hook not working inside of registering hooks. WordPress filter hook plugin_action_links is used to add the To learn more, see our tips on writing great answers. The link wont be active unless the plugin hooks into the action. $file, $function ); where $file is plugin_basename ( __FILE__ ); and __FILE__ is your main plugin file absolute path. This may be a plugin or theme conflict. Plugins have this capability and themes should also have the same to ensure that both share similar functionality. Get WordPress; Themes; . What is the right way to do this. which plugins are known to cause trouble with activating and deactivating/deleting other plugins? the previous installation may still exists in the database and we delete The message "Plugin activated" is displayed, but nothing really happens. 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. The deactivation hook is disabled by the plugin upgrader by using the $silent parameter. 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. If youre using a premium theme, perhaps it keeps re-activating the plugins it (thinks) it needs. 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. On deactivation, plugins can run a routine to remove temporary data such as cache and temp files and directories. Uninstalling your data however may be an after thought. When admin installs the plugin and activates it, WordPress as part of File: wp-includes/plugin.php. the best way i learned is by using uninstall.php. 1 Hi there i make a plugin, now i want that when a user deactivate the plugin, all the functions and posts and option values and meta values also be deleted. To get started, click on Plugins in your dashboard sidebar. Share on Social Plugin, we add action link Settings, which appears If used for details check http://codex.wordpress.org/Function_Reference/register_uninstall_hook. WordPress Plugin Development - Can't drop database table after plugin deactivation? It Registers the uninstall hook that will be called when the user clicks on the uninstall link that calls for the plugin to uninstall itself, any specific customizations related to the plugin. When admin reinstalls the plugin, the default basic locker created in i have developed a plugin and trying to collect some feedback from my users on plugin deactivation time. I tried deactivating them by changing their directory names under wp-content/plugins/ by adding the prefix _. Get WordPress Skip to content. For example, if your plugin resides in wp-content/plugins/my-custom-plugin/my-custom-plugin.php, the plugin_basename youd use for this function is my-custom-plugin/my-custom-plugin.php. single site, it calls Sos_Activator::activate_for_blog(). 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. If you manually update a plug-in via PHP (some people still do), you're supposed to deactivate it before transferring files. Interested in functions, hooks, classes, or methods? Extract the plugin folder to your desktop if downloaded as a zip archive. Registers the uninstall hook that will be called when the user clicks on the uninstall link that calls for the plugin to uninstall itself. OOP: Display warning and deactivate the plugin if PHP version is less than 5.4, Activate and deactivate plugin automatically. - Shazzad Feb 15, 2014 at 0:02 Deactivates a plugin before it is upgraded. inside an include, the name of the included file is returned. 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. Asking for help, clarification, or responding to other answers. In the previous blogs, we customized activation and deactivation phases for the plugin. To debug your install/uninstall functions, you could use. You are right. How Bloombergs engineers built a culture of knowledge sharing, Making computer science more humane at Carnegie Mellon (ep. The first parameter to the registration function is the constant SOS_PLUGIN_FILE defined in the plugins' main file. In Share on Social Plugin, we use Activation phase to remove stale basic Learn more about bidirectional Unicode characters, http://www.eggplantstudios.ca/wordpress-plugin-development-versions-updates/. 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? 2)Must read full documentation about this in. @yodarunamok 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. Share on Social Plugin uses the same class file class-activator.php for 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. Thanks for contributing an answer to WordPress Development Stack Exchange! This occurs when the user deactivates your plugin from admin.