source: inc/core/class.dc.postmedia.php @ 3481:578dcd064a20

<?php
# -- BEGIN LICENSE BLOCK ---------------------------------------
#
# This file is part of Dotclear 2.
#
# Copyright (c) 2003-2013 Olivier Meunier & Association Dotclear
# Licensed under the GPL version 2.0 license.
# See LICENSE file or
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK -----------------------------------------
if (!defined('DC_RC_PATH')) { return; }

class dcPostMedia
{
     protected $core;         ///< <b>dcCore</b> dcCore instance
     protected $con;          ///< <b>connection</b> Database connection
     protected $table;        ///< <b>string</b> Post-Media table name

     /**
     Object constructor.

     @param    core      <b>dcCore</b>       dcCore instance
     @param    type      <b>string</b>       Media type filter
     */
     public function __construct($core,$type='')
     {
          $this->core =& $core;
          $this->con =& $core->con;
          $this->table = $this->core->prefix.'post_media';
     }

     /**
     Returns media items attached to a blog post. Result is an array containing
     fileItems objects.

     @param    post_id   <b>integer</b>      Post ID
     @param    media_id  <b>integer</b>      Optionnal media ID
     @return   <b>array</b> Array of fileItems
     */
     public function getPostMedia($params=array())
     {
          $strReq =
          'SELECT M.media_file, M.media_id, M.media_path, M.media_title, M.media_meta, M.media_dt, '.
          'M.media_creadt, M.media_upddt, M.media_private, M.user_id, PM.post_id ';

          if (!empty($params['columns']) && is_array($params['columns'])) {
               $strReq .= implode(', ',$params['columns']).', ';
          }

          $strReq .=
          'FROM '.$this->core->prefix.'media M '.
          'INNER JOIN '.$this->table.' PM ON (M.media_id = PM.media_id) ';

          if (!empty($params['from'])) {
               $strReq .= $params['from'].' ';
          }

          $where = array();
          if (isset($params['post_id'])) {
               $where[] = "PM.post_id ".$this->con->in($params['post_id']);
          }
          if (isset($params['media_id'])) {
               $where[] = "M.media_id ".$this->con->in($params['media_id']);
          }
          if (isset($params['media_path'])) {
               $where[] = "M.media_path ".$this->con->in($params['media_path']);
          }
          if (isset($params['link_type'])) {
               $where[] = "PM.link_type ".$this->con->in($params['link_type']);
          } else {
               $where[] = "PM.link_type='attachment'";
          }

          $strReq .= 'WHERE '.join('AND ',$where).' ';

          if (isset($params['sql'])) {
               $strReq .= $params['sql'];
          }

          $rs = $this->con->select($strReq);

          return $rs;
     }

     /**
     Attaches a media to a post.

     @param    post_id        <b>integer</b>      Post ID
     @param    media_id  <b>integer</b>      Optionnal media ID
     @param    link_type <b>string</b>       Optionnal link type (default: attachment)
     */
     public function addPostMedia($post_id,$media_id,$link_type='attachment')
     {
          $post_id = (integer) $post_id;
          $media_id = (integer) $media_id;

          $f = $this->getPostMedia(array('post_id'=>$post_id,'media_id'=>$media_id,'link_type'=>$link_type));

          if (!$f->isEmpty()) {
               return;
          }

          $cur = $this->con->openCursor($this->table);
          $cur->post_id = $post_id;
          $cur->media_id = $media_id;
          $cur->link_type = $link_type;

          $cur->insert();
          $this->core->blog->triggerBlog();
     }

     /**
     Detaches a media from a post.

     @param    post_id        <b>integer</b>      Post ID
     @param    media_id  <b>integer</b>      Optionnal media ID
     @param    link_type <b>string</b>       Optionnal link type
     */
     public function removePostMedia($post_id,$media_id,$link_type=null)
     {
          $post_id = (integer) $post_id;
          $media_id = (integer) $media_id;

          $strReq = 'DELETE FROM '.$this->table.' '.
                    'WHERE post_id = '.$post_id.' '.
                    'AND media_id = '.$media_id.' ';
          if ($link_type != null) {
               $strReq .= "AND link_type = '".$this->con->escape($link_type)."'";
          }
          $this->con->execute($strReq);
          $this->core->blog->triggerBlog();
     }

     /**
     Returns media items attached to a blog post. Result is an array containing
     fileItems objects.

     @param    post_id   <b>integer</b>      Post ID
     @param    media_id  <b>integer</b>      Optionnal media ID
     @return   <b>array</b> Array of fileItems
     */
     public function getLegacyPostMedia($post_id,$media_id=null)
     {
          $post_id = (integer) $post_id;

          $strReq =
          'SELECT media_file, M.media_id, media_path, media_title, media_meta, media_dt, '.
          'media_creadt, media_upddt, media_private, user_id '.
          'FROM '.$this->table.' M '.
          'INNER JOIN '.$this->table_ref.' PM ON (M.media_id = PM.media_id) '.
          "WHERE media_path = '".$this->path."' ".
          'AND post_id = '.$post_id.' ';

          if ($media_id) {
               $strReq .= 'AND M.media_id = '.(integer) $media_id.' ';
          }

          $rs = $this->con->select($strReq);

          $res = array();

          while ($rs->fetch()) {
               $f = $this->fileRecord($rs);
               if ($f !== null) {
                    $res[] = $f;
               }
          }

          return $res;
     }

}