CodeIgniter：从视图传递参数到控制器？

Question

EDIT: With the code below now, I am unsure on how to print out the bookmarks and the tags correctly

---

I’m completely new to CI and I have recently hit a road block. I’m very unsure how I would go about passing a function argument from the view file to the controller so I could use it on a function?

I have a foreach loop on the view going through the all the items passed by function get_latest_bookmarks. That function returns a ID for each item and I am wanting to use this with another function called get_bookmark_tags which will get the tags of the bookmark from another table. I have provided the code I have done so far below.

Model:

<?php 
 
class Bookmark_model extends CI_Model {
 
    function __construct()
{
        parent::__construct();
}
 
    function get_latest_bookmarks($limit) 
{
        // Load Database
        $this->load->database();
        // Query Database 
        $query = $this->db->get('Bookmark', $limit);
        // Return Result
        return $query;
}
 
    function get_bookmark_tags($id)
{
        // Load Database
        $this->load->database();
        $query = $this->db->query('SELECT Tag.Title 
                                    FROM `Tag` 
                                    INNER JOIN BookmarkTag
                                    WHERE BookmarkTag.BookmarkID = "'.$id.'" AND Tag.TagID = BookmarkTag.TagID');
        return $query;
}

Controller:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
class Welcome extends CI_Controller {
 
    public function index()
{
        // Load URL Helper
        $this->load->helper('url');
        // Load User Library
        $this->load->library('ion_auth');
        // Is User Logged In
        if ($this->ion_auth->logged_in())
{
            $data['user'] = $this->ion_auth->get_user_array();
}
        else
{
            redirect('auth/login');
}
        // Load Bookmark Model
        $this->load->model('Bookmark_model');
 
        // Create Arrays
        $bookmarks = array();
        $tags = array();
 
        // Query Database
        $query = $this->Bookmark_model->get_latest_bookmarks(4);
        // 
        foreach ($query->result() as $row) {
             array_push($tags, $this->Bookmark_model->get_bookmark_tags($row->BookmarkID));
array_push($bookmarks, $row);
}
        $data['tags_latest'] = $tags;
        $data['bookmarks_latest'] = $bookmarks;
        $this->load->view('welcome_message', $data);
}
 
}

View:

<h1>Latest Bookmarks</h1>
 
<?php foreach ($bookmarks_latest as $bookmark): ?>
 
<?php print_r($bookmark); ?>
 
<?php print_r($tags_latest->result()); ?>
 
<?php endforeach; ?>

Answer 1

You should do that in your Controller before you are passing the data to the View. Try with something like this:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
class Welcome extends CI_Controller {
 
    public function index()
{
        // Load Model
        $this->load->model('Bookmarks');
        // Get Latest Bookmarks
        $query = $this->Bookmarks->get_latest_bookmarks(4);
        $bookmarks = array();
        $tags = array();
        foreach ($query->result() as $row) {
             $bookmark_query = $this->Bookmarks->get_bookmark_tags($row->id);
             $bookmark_arr = array();
             foreach (bookmark_query->result() as $bookm) {
array_push($bookmark_arr, $bookm);
}
array_push($tags, $bookmark_arr);
array_push($bookmarks, $row);
}
        $data['tags'] = $tags;
        $data['bookmarks'] = $bookmarks;
        // Load and Pass Data into View
        $this->load->view('welcome_message', $data);
}
}