CI Framework extension System core class method analysis, CI framework
This paper describes the method of CI framework extending system core class. Share to everyone for your reference, as follows:
First of all, your system extension class is placed under Application/core, the system core class is Ci_controller, so you can not start with ci_, you need to open application/config/config.php modify:
$config [' subclass_prefix '] = ' my_ ';
The prefix for you!
Some common modules can unload their own core class inside!
These days read the DILICMS (Lightweight backend architecture), such as his background extension class:
<?php if (! defined (' BasePath ')) exit (' No Direct script access allowed '); abstract class Admin_controller extends Ci_co ntroller{/** * _admin * Save current logged on user's information * * @var Object * @access public **/public $_admin = NULL; /** * Constructor * * @access public * @return void */Public function __construct () {parent::__construct (); $this->load->library (' Session '); $this->settings->load (' backend '); $this->load->switch_theme (Setting (' Backend_theme ')); $this->_check_login (); $this->load->library (' ACL '); $this->load->library (' Plugin_manager '); /** * Check if the user is logged in * * @access protected * @return void */protected function _check_login () {if (! $this->se Ssion->userdata (' uid ')) {redirect (' Setting (' Backend_access_point '). '/login '); } else {$this->_admin = $this->user_mdl->get_full_user_by_username ($this->session->userdata (' UI d '), ' uid '); if ($this->_admin->status! = 1) {$this->session->set_flashdata (' Error ', "This account has been frozen, please contact the Administrator!"); Redirect (setting (' Backend_access_point '). '/login '); }}}/** * Load View * * @access protected * @param string * @param array * @return void */protected function _te Mplate ($template, $data = Array ()) {$data [' tpl '] = $template; $this->load->view (' Sys_entry ', $data); }/** * Check permissions * * @access protected * @param string * @return void */protected function _check_permit ($action = ", $folder = ') {if (! $this->acl->permit ($action, $folder)) {$this->_message (' Sorry, you don't have permission to access here! ', ', FALSE); }}/** * information hint * * @access public * @param String * @param string * @param bool * @param string * @return void * /Public Function _message ($msg, $goto = ', $auto = TRUE, $fix = ') {if ($goto = = ') {$goto = Isset ($_ser ver[' Http_referer ')? $_server[' Http_referer ': Site_url (); } else {$goto = Strpos ($goto, ' http ')!= = False? $goto: Backend_url ($goto); } $goto. = $fix; $this->_template (' Sys_message ', Array (' msg ' = = $msg, ' goto ' + $goto, ' auto ' = $auto)); echo $this->output->get_output (); Exit (); }}
It put some public information into the verification, landing, jump in the admin_controller inside, so I write the foreground is also the same operation, extended the Font_controller:
Abstract class Font_controller extends ci_controller{public function __construct () { parent::__construct ();}// Foreground load View method public function _template ($template, $data = Array ()) { $data [' nav '] = $this->get_nav (); $data [' tpl '] = $template; $this->load->view (' Default ', $data); }//Common navigation information public Function Get_nav () {}//Common link information public function Get_friendlink () {}}
Tips, some often used tools and functions can be placed in the helper!
More interested in CodeIgniter related content readers can view this site topic: "CodeIgniter Introductory Tutorial", "CI (codeigniter) Framework Advanced Tutorial", "PHP Excellent Development Framework Summary", "thinkphp Getting Started", " Summary of common methods of thinkphp, "Introduction to Zend Framework Frame", "Introduction to PHP Object-oriented Programming", "Introduction to Php+mysql Database Operation" and "PHP common database Operation Skills Summary"
It is hoped that this article is helpful to the PHP program design based on CodeIgniter framework.
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