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04-25-2012, 11:09 AM

[eluser]brian88[/eluser]
im used to grabbing data from the uri segments like -> controller/model/id
so here i would grab the id and thats how my mvc passes variables together.

But here i need to grab an id, which is "postId", without uri segments. This postId is located in my view in a hidden input field. The controller needs this id for the comments section to work properly on this blog.

Comments needs to be linked to a postId without using uri segments. How can I do this?

controller

Code:
function index() {

  // model data

  $data['posts'] = $this->main_mod->getPosts();

  // this variable doesnt work below. 

  //$postId = $this->input->post('postId'); returns false...this cant work because this value is only valid on form submit. correct?

  $postId = '33'; // this is a hard coded # that works. but NEEDS TO BE DYNAMIC. I need the postId in the view

  $data['comments'] = $this->main_mod->getComments( $postId ); // comments needs a postId from view

  // views

  if($this->session->userdata('logged_in') === true) {

   $this->load->view('header_logged_in', $data);

   $this->load->view('home', $data);

   $this->load->view('footer');

  }else{

   $this->load->view('header', $data);

   $this->load->view('home', $data);

   $this->load->view('footer');

  }

 } // end function

view

Code:
<div id="content" class="home cfix">

  &lt;?php foreach($posts as $p): ?&gt;

   &lt;!-- Start Post --&gt;

   <h1><a href="&lt;?php echo site_url(">id . "/" . url_title($p->title, true)); ?&gt;">&lt;?php echo $p->title; ?&gt;</a></h1>

   <p>&lt;?php echo auto_link($p->body, 'url', true); ?&gt;</p>

   &lt;!-- End Post --&gt;

   <br />

   &lt;!-- Start Comments --&gt;

   &lt;?php foreach($comments as $c): ?&gt;

   <p>&lt;?php echo $c->comment; ?&gt;: </p>

   &lt;?php endforeach; ?&gt;

   &lt;!-- End Comments --&gt;

   &lt;form action="&lt;?php echo base_url('main/add_comment_db'); ?&gt;" method="post" accept-charset="utf-8"&gt;

    &lt;textarea id="comment" class="blank" name="comment"&gt;Comment...&lt;/textarea&gt;

    &lt;input type="hidden" name="postId" value="&lt;?php echo $p-&gt;id; // i need this value for my controller ?&gt;"&gt;

    &lt;input type="submit" name="submit" value="Post"&gt;

   &lt;/form&gt;

   <hr /><div class="clear"></div>

  &lt;?php endforeach; ?&gt;

  </div>&lt;!-- #Content --&gt;

model

Code:
// get all posts

 function getComments($postId) { // need postId from view

  $q = $this->db->query("

   select comment, postId, c.id, p.id, c.date, p.userId

   from comments as c

   left join posts as p on (c.postId = p.id)

   where p.id = ?

  ", array($postId));

  if($q->num_rows() > 0){

   foreach($q->result() as $row){

    $data[] = $row;

   }

   return $data;

  }

 } // end function