Codeigniter控制器类 [英] Codeigniter controller class

问题描述

我创建的codeigniter控制器类如下

I created codeigniter controller class as follows

class Poems extends CI_Controller{

function __construct() {
    parent::__construct();
    $this->load->model('poem');
}

，然后在上面的类中创建方法诗如下

and then created method poem inside the above class as follows

function poem($poemID){
 $data['poem']=  $this->poem->get_poem($poemID);
 $this->load->view('poem',$data);

}

/ em> * ** ** ** em> * *** /
上面我在模型get_poem（）方法中创建的控制器类如下

/*******************/ for the above controller class I created in the model get_poem() method as follows

function get_poem(){
    $this->db->select()->from('poems')->where(array('active'=>1,'poemID'=>$poemID))->order_by('date_added', 'desc');
    $query=  $this->db->get();
    return $query->first_row('array');
}

当我在浏览器中运行这些诗歌时， $ b当我想在浏览器中加载poem方法作为诗歌/ poem时，会出现以下错误。

When I run the poems in the browser it works fine... When I want to load the poem method as poems/poem in the browser the following error appears.

error 1: Missing argument 1 for Poems::poem()
error 2:  Undefined variable: poemID

我可以修复此错误

推荐答案

您的模型中的 get_poem（）缺少参数。

Your get_poem() in your model is missing an argument.

在模型中，使用 get_poem（$ poemID），就像你在控制器中。

In the model, use get_poem($poemID) like you have in the controller.

原因是你正在调用函数：

The reason being, you're calling the function:

get_poem($poemID)
           ^ with an argument

在模型中，你使用这个：

However when you actually get to the function in the model, you use this:

get_poem()
         ^ without an argument

这意味着，不仅 $ poemID get_poem 函数，但函数不会运行，因为它缺少参数。

This means that not only will $poemID not be a valid variable in the get_poem function, but also the function wont run because it's missing an argument.

Sidenote： poem 在写这个之后不再听起来或者看起来像一个真实的单词。

Sidenote: poem doesn't sound or look like a real word anymore after writing this.

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