duanqiaoren9975 2013-04-24 15:21
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如何将函数从PHP Procedural转换为PHP MVC？

I have this function on my View Page, which truncates some data to present it on my table.

function truncate($mytext) {  
    //Number of characters to show  
    $chars = 100;  
    $mytext = substr($mytext,0,$chars);  
    $mytext = substr($mytext,0,strrpos($mytext,' '));    
    return $mytext;  
    }

I set a local variable for my dynamic text:

$mydescription = $value['PROBLEM_DESCRIPTION']

On the same page, I have this:

echo '<td><p>' .truncate($mydescription). '; ?></p><</td>

And it works perfect, so my question is how can apply this on an MVC architecture using Codeigniter? If somebody has an idea let me know, thanks!!!

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  • douchong4730 2013-04-24 15:29
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    You could do it in the controller:

    class Something extends CI_Controller{
    public function index(){
        $data['mytext'] = $this->_truncate('some text to truncate');

        //truncated text will be available in the view as $mytext
        $this->load->view('some_view', $data);
    }

    private function _truncate($text = NULL){
        if($text){
            $chars = 100;  
            $mytext = substr($text,0,$chars);  
            $mytext = substr($text,0,strrpos($text,' ')); 
            return $mytext;
        }  
    }
}

    Edit:

    You are calling db stuff in your view which is entirely not Codeigniter MVC.

    This is what it might look like in MVC:

    Controller

    class Something extends CI_Controller{
    public function index(){
        $test_text = $this->my_model->get_text();
        $data['test_text'] = $this->_truncate($test_text);

        //truncated text will be available in the view as $test_text
        $this->load->view('some_view', $data);
    }

    private function _truncate($text = NULL){
        if($text){
            $chars = 100;  
            $mytext = substr($mytext,0,$chars);  
            $mytext = substr($mytext,0,strrpos($mytext,' ')); 
            return $mytext;
        }  
    }
}

    Model

    class My_Model extends CI_Model{

    public function get_text(){
        //$this->db->get_where....or other db functions
        return "testing text... this is only a test";
    }

}

    View

    <html>
<body>
<b><?php echo $test_text; ?></b>
</body>
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