Hệ thống plugin Các plugin hệ thống cung cấp một loạt các chức năng hệ thống toàn cầu, từ bộ nhớ đệm để gỡ rối. Trong số bảy Plugins trong thể loại này chỉ có ba được công bố. Bốn plugin khác (Debug, Legacy, Cache và Đăng nhập) cung cấp các chức năng mà không phải tất cả người dùng có thể muốn hoặc cần. | Chapter 19 Working with Plugins FIGURE The Search - Newsfeeds Plugin dialogue. System plugins The System plugins provide a variety of global system functions from caching to debugging. Of the seven Plugins in this category only three are published. The other four plugins Debug Legacy Cache and Log provide functions that not all users may want or need. Note The System plugin files are located in the directory plugins system. SEF The SEF Pplugin enables the use of Search Engine Friendly URLs in the articles on your site. This plugin is independent from the Search Engine Friendly option in the Global Configuration Manager. The plugin is enabled in the default installation. The plugin s dialogue is shown in Figure . Note The principal file for this plugin is . 483 Part III Working with Components Modules and Plugins FIGURE The System - SEF Plugin dialogue in Joomla . No parameters are associated with this plugin. Debug The Debug plugin is used to display information about the system that is intended to be of use in debugging a site. When active the Debug plugin outputs the information at the bottom of the screen in your browser. The Debug plugin is disabled in the default configuration and should only be turned on during development or when you are trying to solve a problem with your site and need access to this information. The plugin s dialogue is shown in Figure . Note The principal file for this plugin is . The Plugin Parameters section contains the following options Display Profiling Information When set to Yes includes the time profiling information in the debugging output. 484 Chapter 19 Working with Plugins Display SQL query log When set to Yes includes the SQL query log in the debugging output. Display memory usage When set to Yes includes the memory usage data in the debugging output. Display loaded language files When set to Yes includes information on the loaded language file s in the debugging output. Display .
