public function __construct()
{
+ parent::__construct();
+
if ($this->db === NULL)
{
$this->load->library('singleton_db');
}
/**
- * Retrieves information about a set of videos which are going to be
- * displayed in the catalog.
+ * Retrieves a set of videos information which can be used for displaying
+ * that videos as a list with few details.
*
- * @param int $category_id DB category ID
+ * @param int $category_id DB category ID; pass NULL for all
+ * categories
+ * @param mixed $user an user_id (as int) or an username
+ * (as string); pass NULL for all users
* @param int $offset
* @param int $count
* @param string $ordering control videos ording by these
* <li>id, name, title, duration, thumbs_count, default_thumb, views => from DB</li>
* <li>shorted_title => ellipsized title</li>
* <li>video_url => P2P-Tube video URl</li>
- * <li>TODO: user_id, user_name</li>
+ * <li>user_id, user_name</li>
* <li>thumbs => thumbnail images' URLs</li>
* </ul>
*/
- public function get_videos_summary($category_id, $offset, $count, $ordering = 'hottest')
+ public function get_videos_summary($category_id, $user, $offset, $count,
+ $ordering = 'hottest')
{
$this->load->helper('text');
$order_statement = "";
}
+ // Category filtering
+ if ($category_id === NULL)
+ $cond_category = "1";
+ else
+ {
+ $category_id = intval($category_id);
+ $cond_category = "category_id = $category_id";
+ }
+
+ // User filtering
+ if ($user === NULL)
+ $cond_user = "1";
+ else
+ {
+ if (is_int($user))
+ $cond_user = "v.user_id = $user";
+ else if (is_string($user))
+ $cond_user = "u.username = '$user'";
+ }
+
$query = $this->db->query(
- "SELECT id, name, title, duration, user_id, views, thumbs_count,
- default_thumb, (views + likes - dislikes) AS score
- FROM `videos`
- WHERE category_id = ?
+ "SELECT v.id, name, title, duration, user_id, u.username, views,
+ thumbs_count, default_thumb,
+ (views + likes - dislikes) AS score
+ FROM `videos` v, `users` u
+ WHERE v.user_id = u.id AND $cond_category AND $cond_user
$order_statement
- LIMIT ?, ?",
- array(intval($category_id), $offset, $count));
+ LIMIT $offset, $count");
if ($query->num_rows() > 0)
$videos = $query->result_array();
else
- return NULL;
+ return array();
foreach ($videos as & $video)
{
// Ellipsized title
//$video['shorted_title'] = ellipsize($video['title'], 45, 0.75);
$video['shorted_title'] = character_limiter($video['title'], 50);
-
- // TODO: user information
- $video['user_name'] = 'TODO';
}
return $videos;
}
- public function get_videos_count($category_id)
+ /**
+ * Returns the number of videos from database from a specific category or
+ * user.
+ * NULL parameters count videos from all categories and / or all users.
+ *
+ * @param int $category_id
+ * @param mixed $user an user_id (as int) or an username (as string)
+ * @return int number of videos or FALSE if an error occured
+ */
+ public function get_videos_count($category_id = NULL, $user = NULL)
{
+ if ($category_id === NULL)
+ $cond_category = "1";
+ else
+ $cond_category = "category_id = $category_id";
+
+ if ($user === NULL)
+ $cond_user = "1";
+ else
+ {
+ if (is_int($user))
+ $cond_user = "v.user_id = $user";
+ else if(is_string($user))
+ $cond_user = "u.username = '$user'";
+ }
+
$query = $this->db->query(
- 'SELECT COUNT(*) count
- FROM `videos`
- WHERE category_id = ?',
- $category_id);
+ "SELECT COUNT(*) count
+ FROM `videos` v, `users` u
+ WHERE v.user_id = u.id AND $cond_category AND $cond_user");
if ($query->num_rows() > 0)
return $query->row()->count;
// Error
- return NULL;
+ return FALSE;
}
/**
* video asset having keys: "src", "res", "par" and "ext". Value of key
* "src" is the video torrent formated as
* {name}_{format}.{video_ext}.{default_torrent_ext}</li>
- * <li>user_name => TODO: user name from `users` table</li>
+ * <li>username => user name from `users` table</li>
* <li>category_title => a human-friendly category name</li>
* <li>tags => associative list of "tag => score"</li>
* <li>date => date and time when the video was created</li>
{
$this->load->helper('video');
- $query = $this->db->query('SELECT *
- FROM `videos`
- WHERE id = ?', $id);
+ $query = $this->db->query("SELECT v.*, u.username
+ FROM `videos` v, `users` u
+ WHERE v.user_id = u.id AND v.id = $id");
$video = array();
if ($query->num_rows() > 0)
// Thumbnails
$video['thumbs'] = $this->get_thumbs($video['name'], $video['thumbs_count']);
- // TODO: user information
- $video['user_name'] = 'TODO';
-
return $video;
}
/**
- * Increment a video parameter from DB: `views`, `likes` or `dislikes`.
+ * Retrieves comments for a video.
+ *
+ * @param int $video_id
+ * @param int $offset
+ * @param int $count
+ * @param string $ordering control comments ording by these possibilities:
+ * <ul>
+ * <li><strong>'hottest':</strong> newest most appreciated first. An
+ * appreciated comment is one which has a bigger
+ * score = likes - dislikes.</li>
+ * <li><strong>'newest':</strong> newest first.</li>
+ * </ul>
+ * @return array an array with comments
+ */
+ public function get_video_comments($video_id, $offset, $count,
+ $ordering = 'newest')
+ {
+ // Ordering
+ switch ($ordering)
+ {
+ case 'newest':
+ $order_statement = "ORDER BY time DESC";
+ break;
+ case 'hottest':
+ $order_statement = "ORDER BY time DESC, score DESC";
+ break;
+
+ default:
+ $order_statement = "";
+ }
+
+ $query = $this->db->query(
+ "SELECT c.*, u.username, (c.likes + c.dislikes) AS score
+ FROM `videos_comments` c, `users` u
+ WHERE c.user_id = u.id AND video_id = $video_id
+ $order_statement");
+
+ if ($query->num_rows() == 0)
+ return array();
+
+ $comments = $query->result_array();
+
+ return $comments;
+ }
+
+ public function get_video_comments_count($video_id)
+ {
+ $query = $this->db->query(
+ "SELECT COUNT(*) count
+ FROM `videos_comments`
+ WHERE video_id = $video_id");
+
+ if ($query->num_rows() == 0)
+ return FALSE;
+
+ return $query->row()->count;
+ }
+
+ /**
+ * Insert in DB a comment for a video.
+ *
+ * @param int $video_id
+ * @param int $user_id
+ * @param string $content
+ */
+ public function comment_video($video_id, $user_id, $content)
+ {
+ return $query = $this->db->query(
+ "INSERT INTO `videos_comments` (video_id, user_id, content, time)
+ VALUES ($video_id, $user_id, '$content', UTC_TIMESTAMP())");
+ }
+
+ /**
+ * Increments views count for a video.
*
* @param int $id DB video id
- * @param string $param DB parameter column name.
* @return void
*/
- public function inc_video_var($id, $var)
+ public function inc_views($id)
{
- // TODO error report if query returns FALSE
- $this->db->query('UPDATE `videos` '
- . 'SET `'. $var. '`=`'. $var. '`+1 '
+ return $this->db->query('UPDATE `videos` '
+ . 'SET `views`=`views`+1 '
. 'WHERE id='. $id);
}
+ public function vote($video_id, $user_id, $like = TRUE)
+ {
+ if ($like)
+ {
+ $col = 'likes';
+ $action = 'like';
+ }
+ else
+ {
+ $col = 'dislikes';
+ $action = 'dislike';
+ }
+
+ $query = $this->db->query("SELECT * FROM `users_actions`
+ WHERE user_id = $user_id
+ AND target_id = $video_id
+ AND target_type = 'video'
+ AND action = '$action'
+ AND date = CURDATE()");
+ // User already voted today
+ if ($query->num_rows() > 0)
+ return -1;
+
+ $this->db->query("UPDATE `videos`
+ SET $col = $col + 1
+ WHERE id = $video_id");
+
+ // Mark this action so that the user cannot repeat it today.
+ $this->db->query("INSERT INTO `users_actions`
+ (user_id, action, target_type, target_id, date)
+ VALUES ( $user_id, '$action', 'video', $video_id, CURDATE() )");
+
+ $query = $this->db->query("SELECT $col FROM `videos`
+ WHERE id = $video_id");
+
+ if ($query->num_rows() === 1)
+ {
+ $row = $query->row_array();
+ return $row[ $col ];
+ }
+
+ // Error
+ return FALSE;
+ }
+
public function get_thumbs($name, $count)
{
$thumbs = array();
$str_query = "SELECT $selected_columns
FROM `videos`
- WHERE $category_cond $search_cond
+ WHERE $category_cond ( $search_cond )
$order
$limit";
-
//echo "<p>$str_query</p>";
+
// echo "<p>$str_query</p>";
$query = $this->db->query($str_query);
if ($query->num_rows() > 0)
return $search_query;
}
+ public function encode_search_query($search_query)
+ {
+ $search_query = str_replace('*', '_AST_', $search_query);
+ $search_query = str_replace('+', '_AND_', $search_query);
+ $search_query = str_replace('>', '_GT_', $search_query);
+ $search_query = str_replace('<', '_LT_', $search_query);
+ $search_query = str_replace('(', '_PO_', $search_query);
+ $search_query = str_replace(')', '_PC_', $search_query);
+ $search_query = str_replace('~', '_LOW_', $search_query);
+ $search_query = str_replace('"', '_QUO_', $search_query);
+
+ $search_query = urlencode($search_query);
+
+ return $search_query;
+ }
+
/**
* Return TRUE if it contains any special caracter from an advanced search
* query.
projects / living-lab-site.git / blobdiff