php - codeigniter 负载模型使用获取参数

Question

我使用三台数据库服务器和一台应用程序服务器。

class Main extends REST_Controller{

    public function __construct(){
        parent::__construct();

        if($this->input->get('country', true) == "KR")
        {
            $krdb['host'] = '11.22.33.44';
            //blah blah

            $this->load->model('category', '', $krdb);
            $this->load->model('contents', '', $krdb);
            $this->load->model('user', '', $krdb);
            $this->load->model('series', '', $krdb);
        }
        else if($this->input->get('country', true) == "EN")
        {
            $endb['host'] = '111.222.33.44';
            //blah blah

            $this->load->model('category', '', $endb);
            $this->load->model('contents', '', $endb);
            $this->load->model('user', '', $endb);
            $this->load->model('series', '', $endb);
        }

    }
}

但是这次运行，无法加载数据库。

如果改变条件 if(1==1)，右激活。

我的猜测，在获取参数设置之前调用Controller构造函数

请帮帮我..

Answer 1

在您的 config/database.php 中，您的数据库被配置为 'default' 组，如下所示:

<?php

$db['default']['hostname'] = 'host';
$db['default']['username'] = 'username';
$db['default']['password'] = 'password';
$db['default']['database'] = 'database';
This allows you to specify other groups like this:

$db['KR']['hostname'] = 'host';
$db['KR']['username'] = 'username';
$db['KR']['password'] = 'password';
$db['KR']['database'] = 'database';

$db['EN']['hostname'] = 'host';
$db['EN']['username'] = 'username';
$db['EN']['password'] = 'password';
$db['EN']['database'] = 'database';
You can then connect to another database by using:

输入 Controller

class Main extends REST_Controller {

    public function __construct() {
        parent::__construct();

        if ($this->input->get('country', true) == "KR") {
            $defaultDB = $this->load->database('KR', TRUE);
        } else if ($this->input->get('country', true) == "EN") {
           $defaultDB = $this->load->database('EN', TRUE);
        }else{
              $defaultDB = $this->load->database('default', TRUE);
        }
    }

}