Plugin API
Geeklog's Plugin API defines the interface between the core Geeklog code and the plugins. From Geeklog's point of view, all the Plugin API functions are called PLG_something, which will result in a function plugin_something_foo being called in the "foo" plugin (if it exists - all the API functions are optional).
Please note that there isn't always a one-to-one relationship between a PLG_ function and a plugin_ function. For example, PLG_uninstall will call either plugin_uninstall_ or plugin_autouninstall_, whichever is implemented. Other functions may not even get through to the plugin, e.g. PLG_afterSaveSwitch.
For details about Plugin API functions that are not documented yet, please refer to the documented source code of lib-plugins.php
Contents
Installation
| API Function | Description |
|---|---|
| plugin_autouninstall_ | Plugin should provide data for uninstallation |
| plugin_chkVersion_ | Called to check if a plugin upgrade is required |
| plugin_enablestatechange_ | Inform plugin that it's about to be enabled or disabled |
| plugin_install_ | (not currently used) |
| plugin_migrate_ | Site migration underway; plugin should migrate its data |
| plugin_uninstall_ | Plugin should uninstall itself |
| plugin_upgrade_ | Plugin should upgrade itself |
Also see Plugin Autoinstall.
Moderation / Submission
| API Function | Description |
|---|---|
| plugin_ismoderator_ | Check to see if the current user is a moderator for this plugin |
| plugin_itemlist_ | Provide information to build the list of items in the plugin's submission queue |
| plugin_moderationapprove_ | Approve an item in the plugin's submission queue |
| plugin_moderationdelete_ | Remove an item from the plugin's submission queue |
| plugin_moderationvalues_ | Set plugin-specific moderation values |
| plugin_savesubmission_ | Save an item in the plugin's submission queue |
| plugin_submissioncount_ | Return the number of items in the plugin's submission queue |
| plugin_submit_ | Display the plugin's submission form |
Also see Adding Moderation Capability and Moderation Functions.
Comments
| API Function | Description |
|---|---|
| plugin_commentPreSave_ | Called before a comment is saved |
| plugin_deletecomment_ | Delete a comment |
| plugin_displaycomment_ | Display one or several comment(s) |
| plugin_getcommenturlid_ | Provide URL of page to view comments and the unique identifier |
| plugin_getwhatsnewcomment_ | Return the new plugin comments for the What's New block and the User Profile |
| plugin_savecomment_ | Save a comment |
Note that these are the only Comment API functions still in use. Also see Integrating the Comment Engine.
Statistics
| API Function | Description |
|---|---|
| plugin_showstats_ | Provide statistics information (summary and specifics) |
| plugin_statssummary_ | Provide statistics for the summary only |
Also see Extending Site Statistics with your plugin and Stats Function.
Search
| API Function | Description |
|---|---|
| plugin_dopluginsearch_ | Perform search (v1 API) or provide search details and let Geeklog perform the search (v2 API) |
| plugin_searchtypes_ | Provide entries for the "type" dropdown on the Advanced Search page |
| plugin_supportsexpandedsearch_ | (not used any more) |
Plugin authors are encouraged to Use Geeklog's Improved Search Engine, available as of Geeklog 1.6.0.
For backward compatibility with older Geeklog versions, also see Using Geeklog's Search Engine.
UI and Templates
| API Function | Description |
|---|---|
| plugin_cclabel_ | Get entry for the "Command and Control" page |
| plugin_getadminoption_ | Get entries for the Admins Block |
| plugin_getdocumentationurl_ | Link to plugin documentation |
| plugin_getheadercode_ | Add code, etc. to the HTML <head> section, e.g. meta tags
|
| plugin_geticon_ | Provide URL of the plugin's icon |
| plugin_getmenuitems_ | Add entries to the header menu |
| plugin_getuseroption_ | Get entries for the User Functions Block |
| plugin_profileblocksdisplay_ | Add template variables when displaying a block on the user profile page |
| plugin_profileblocksedit_ | Add template variables to a block when editing the user profile |
| plugin_profileextrassave_ | Save plugin-specific additions when saving a user's profile |
| plugin_profilevariablesdisplay_ | Add template variables when displaying the user profile page |
| plugin_profilevariablesedit_ | Add template variables when editing the user profile |
| plugin_templatesetvars_ | Add template variables to the standard templates, e.g. site header, articles, ... |
User
| API Function | Description |
|---|---|
| plugin_user_changed_ | A user's profile information or preferences changed |
| plugin_user_create_ | A new user was created |
| plugin_user_delete_ | A user is about to be deleted |
| plugin_user_login_ | A user has logged in (using the login form) |
| plugin_user_logout_ | A user has logged out (explicitly, i.e. using the "Log Out" link) |
Feeds
| API Function | Description |
|---|---|
| plugin_feedElementExtensions_ | Get extension tags for a feed |
| plugin_feedExtensionTags_ | Get meta tag extensions for a feed |
| plugin_feedNSExtensions_ | Get namespace extensions for a feed |
| plugin_feedupdatecheck_ | Plugin should check if a feed needs to be updated |
| plugin_getfeedcontent_ | Get content of a plugin feed |
| plugin_getfeednames_ | Get a list of feeds provided by the plugin |
Also see RSS API.
Spam Filter
| API Function | Description |
|---|---|
| plugin_spamaction_ | Trigger action on recognized spam |
| plugin_checkforSpam_ | Check if content is spam |
Note: These API functions are used by plugins implementing a spam filter, i.e. they are implemented by the Spam-X Plugin. To filter spam in your plugin, see Filtering Spam with Spam-X.
Blocks
| API Function | Description |
|---|---|
| plugin_centerblock_ | Display a centerblock |
| plugin_getBlocks_ | Provide dynamically created blocks |
| plugin_getwhatsnew_ | Provide content for the What's New Block |
| plugin_whatsnewsupported_ | Return headline and byline for the What's New Block |
Misc
| API Function | Description |
|---|---|
| plugin_autotags_ | Provide or replace autotags |
| plugin_configchange_ | A change was made in the Configuration for Geeklog or a plugin |
| plugin_getiteminfo_ | Provide information about an item |
| plugin_group_changed_ | A group's information has changed or a new group was created |
| plugin_handlepingoperation_ | Accept or delete a Trackback or Pingback |
| plugin_itemdeleted_ | An item was deleted |
| plugin_itemdisplay_ | An item is about to be displayed |
| plugin_itemPreSave_ | Called before an item is saved |
| plugin_itemsaved_ | Geeklog saved an item |
| plugin_pluginstatechange_ | A plugin's state changed |
| plugin_runScheduledTask_ | Run a task at a scheduled time (cronjob-like functionality) |
| plugin_wsEnabled_ | Whether or not the plugin supports the Webservices API |
