4 * Class Videos_model models videos information from the DB
7 * @author Călin-Andrei Burloiu
9 class Videos_model extends CI_Model {
12 public function __construct()
14 if ($this->db === NULL)
16 $this->load->library('singleton_db');
17 $this->db = $this->singleton_db->connect();
22 * Retrieves information about a set of videos which are going to be
23 * displayed in the catalog.
25 * TODO: filter, limit, ordering parameters
26 * @param int $category_id DB category ID
29 * @return array a list of videos, each one being an assoc array with:
31 * <li>id, name, title, duration, thumbs_count, default_thumb, views => from DB</li>
32 * <li>shorted_title => ellipsized title</li>
33 * <li>video_url => P2P-Tube video URl</li>
34 * <li>TODO: user_id, user_name</li>
35 * <li>thumbs => thumbnail images' URLs</li>
38 public function get_videos_summary($category_id, $offset, $count)
40 $this->load->helper('text');
42 $query = $this->db->query(
43 'SELECT id, name, title, duration, user_id, views, thumbs_count,
48 LIMIT ?, ?', // TODO summary order
49 array(intval($category_id), $offset, $count));
51 if ($query->num_rows() > 0)
52 $videos = $query->result_array();
56 foreach ($videos as & $video)
59 $video['video_url'] = site_url(sprintf("watch/%d/%s",
60 $video['id'], $video['name']));
63 $video['thumbs'] = $this->get_thumbs($video['name'],
64 $video['thumbs_count']);
67 //$video['shorted_title'] = ellipsize($video['title'], 45, 0.75);
68 $video['shorted_title'] = character_limiter($video['title'], 50);
70 // TODO: user information
71 $video['user_name'] = 'TODO';
77 public function get_videos_count($category_id)
79 $query = $this->db->query(
80 'SELECT COUNT(*) count
82 WHERE category_id = ?',
85 if ($query->num_rows() > 0)
86 return $row = $query->row()->count;
93 * Retrieves information about a video.
95 * If $name does not match with the video's `name` from the DB an error is
96 * marked in the key 'err'. If it's NULL it is ignored.
99 * @param string $id video's `id` column from `videos` DB table
100 * @param string $name video's `name` column from `videos` DB
101 * table. NULL means there is no name provided.
102 * @return array an associative list with information about a video
103 * with the following keys:
105 * <li>all columns form DB with some exceptions that are overwritten or new</li>
106 * <li>content is moved in assets</li>
107 * <li>assets => list of associative lists where each one represents a</li>
108 * video asset having keys: "src", "res", "par" and "ext". Value of key
109 * "src" is the video torrent formated as
110 * {name}_{format}.{video_ext}.{default_torrent_ext}</li>
111 * <li>user_name => TODO: user name from `users` table</li>
112 * <li>category_title => a human-friendly category name</li>
113 * <li>tags => associative list of "tag => score"</li>
114 * <li>date => date and time when the video was created</li>
115 * <li>thumbs => thumbnail images' URLs</li>
118 public function get_video($id, $name = NULL)
120 $this->load->helper('video');
122 $query = $this->db->query('SELECT *
127 if ($query->num_rows() > 0)
129 $video = $query->row_array();
130 if ($name !== NULL && $video['name'] != $name)
131 $video['err'] = 'INVALID_NAME';
135 $video['err'] = 'INVALID_ID';
139 // Convert JSON encoded string to arrays.
140 $video['assets'] = json_decode($video['formats'], TRUE);
141 unset($video['formats']);
142 $video['tags'] = json_decode($video['tags'], TRUE);
143 asort($video['tags']);
144 $video['tags'] = array_reverse($video['tags'], TRUE);
146 // Sort assets by their megapixels number.
147 function access_function($a) { return $a['res']; }
148 function assets_cmp($a, $b)
149 { return megapixels_cmp($a, $b, "access_function"); }
150 usort($video['assets'], "assets_cmp");
153 $video['url'] = array();
154 foreach ($video['assets'] as & $asset)
156 $def = substr($asset['res'], strpos($asset['res'], 'x') + 1) . 'p';
157 $asset['src'] = site_url('data/torrents/'. $video['name'] . '_'
158 . $def . '.'. $asset['ext']
159 . '.'. $this->config->item('default_torrent_ext'));
163 $categories = $this->config->item('categories');
164 $category_name = $categories[ intval($video['category_id']) ];
165 $video['category_title'] = $category_name ?
166 $this->lang->line("ui_categ_$category_name") : $category_name;
169 $video['thumbs'] = $this->get_thumbs($video['name'], $video['thumbs_count']);
171 // TODO: user information
172 $video['user_name'] = 'TODO';
178 * Increment a video parameter from DB: `views`, `likes` or `dislikes`.
180 * @param int $id DB video id
181 * @param string $param DB parameter column name.
184 public function inc_video_var($id, $var)
186 // TODO error report if query returns FALSE
187 $this->db->query('UPDATE `videos` '
188 . 'SET `'. $var. '`=`'. $var. '`+1 '
192 public function get_thumbs($name, $count)
196 for ($i=0; $i < $count; $i++)
197 $thumbs[] = site_url(sprintf("data/thumbs/%s_t%02d.jpg", $name, $i));
202 public function search_videos($str_search)
204 // TODO offset, count for search
208 $str_search = trim($str_search);
210 $query = $this->db->query(
211 "SELECT id, name, title, duration, user_id, views, thumbs_count,
214 WHERE MATCH (title, description, tags) AGAINST (?)
217 array($str_search, $offset, $count));
219 if ($query->num_rows() > 0)
220 $videos = $query->result_array();
224 $this->load->helper('text');
226 foreach ($videos as & $video)
228 // P2P-Tube Video URL
229 $video['video_url'] = site_url(sprintf("watch/%d/%s",
230 $video['id'], $video['name']));
233 $video['thumbs'] = $this->get_thumbs($video['name'],
234 $video['thumbs_count']);
237 //$video['shorted_title'] = ellipsize($video['title'], 45, 0.75);
238 $video['shorted_title'] = character_limiter($video['title'], 50);
240 // TODO: user information
241 $video['user_name'] = 'TODO';
248 /* End of file videos_model.php */
249 /* Location: ./application/models/videos_model.php */