Analysis on the core class of CI Framework extended system

This article mainly introduced the CI Framework extension system core class method, combined with the example form to analyze the CI framework to implement the expansion system core class steps and related operation skills, the need for friends can refer to the following

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!

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