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 $offset
- * @param int $count
- * @param string $ordering control videos ording by these
+ * @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 number of videos to retrieve; if set to TRUE this
+ * method will retrieve the number of videos that satisfy condition
+ * @param string $ordering control videos ording by these
* possibilities:
* <ul>
* <li><strong>'hottest':</strong> newest most appreciated first. An
* <li><strong>'newest':</strong> newest first.</li>
* <li><strong>'alphabetically':</strong> sort alphabetically.</li>
* </ul>
- * @return array a list of videos, each one being an assoc array with:
+ * @param bool $unactivated whether to retrieve or not ingested unactivated
+ * videos; typically only administrators should see this kind of assets
+ * @return array a list of videos, each one being an assoc array with:
* <ul>
* <li>id, name, title, duration, thumbs_count, default_thumb, views => from DB</li>
* <li>shorted_title => ellipsized title</li>
* <li>video_url => P2P-Tube video URl</li>
- * <li>TODO: user_id, user_name</li>
+ * <li>user_id, user_name</li>
* <li>thumbs => thumbnail images' URLs</li>
* </ul>
*/
- public function get_videos_summary($category_id, $offset, $count, $ordering = 'hottest')
+ public function get_videos_summary($category_id, $user, $offset, $count,
+ $ordering = 'hottest', $unactivated = FALSE)
{
$this->load->helper('text');
- // Ordering
- switch ($ordering)
+ $order_statement = "";
+ if ($count !== TRUE)
{
- case 'hottest':
- $order_statement = "ORDER BY date DESC, score DESC, RAND()";
- break;
- case 'newest':
- $order_statement = "ORDER BY date DESC";
- break;
- case 'alphabetically':
- $order_statement = "ORDER BY title";
- break;
-
- default:
- $order_statement = "";
+ // Ordering
+ switch ($ordering)
+ {
+ case 'hottest':
+ $order_statement = "ORDER BY date DESC, score DESC, RAND()";
+ break;
+ case 'newest':
+ $order_statement = "ORDER BY date DESC";
+ break;
+ case 'alphabetically':
+ $order_statement = "ORDER BY title";
+ break;
+
+ default:
+ $order_statement = "";
+ }
+ }
+
+ // Show unactivated videos.
+ $cond_unactivated = ($unactivated
+ ? '(a.activation_code IS NULL OR a.activation_code IS NOT NULL
+ AND a.content_ingested = 1)'
+ : 'a.activation_code IS NULL');
+
+ // 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'";
+ }
+
+ if ($count === TRUE)
+ $fields = "COUNT(*) count";
+ else
+ $fields = "v.id, name, title, duration, user_id, u.username, views,
+ thumbs_count, default_thumb,
+ (views + likes - dislikes) AS score,
+ a.activation_code, a.content_ingested";
+
$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 $fields
+ FROM `videos` v
+ LEFT JOIN `videos_unactivated` a ON (id = a.video_id),
+ `users` u
+ WHERE v.user_id = u.id AND $cond_category AND $cond_user
+ AND $cond_unactivated
$order_statement
- LIMIT ?, ?",
- array(intval($category_id), $offset, $count));
+ LIMIT $offset, $count");
if ($query->num_rows() > 0)
+ {
+ if ($count === TRUE)
+ return $query->row()->count;
+
$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,
+ $unactivated = FALSE)
{
- $query = $this->db->query(
- 'SELECT COUNT(*) count
- FROM `videos`
- WHERE category_id = ?',
- $category_id);
-
- if ($query->num_rows() > 0)
- return $query->row()->count;
-
- // Error
- return NULL;
+ return $this->get_videos_summary($category_id, $user, 0, TRUE, NULL,
+ $unactivated);
}
/**
* If $name does not match with the video's `name` from the DB an error is
* marked in the key 'err'. If it's NULL it is ignored.
*
- * @access public
- * @param string $id video's `id` column from `videos` DB table
- * @param string $name video's `name` column from `videos` DB
+ * @access public
+ * @param string $id video's `id` column from `videos` DB table
+ * @param string $name video's `name` column from `videos` DB
* table. NULL means there is no name provided.
- * @return array an associative list with information about a video
+ * @return array an associative list with information about a video
* with the following keys:
* <ul>
* <li>all columns form DB with some exceptions that are overwritten or new</li>
* video asset having keys: "src", "res", "par" and "ext". Value of key
* "src" is the video torrent formated as
* {name}_{format}.{video_ext}.{default_torrent_ext}</li>
- * <li>user_name => TODO: user name from `users` table</li>
+ * <li>username => user name from `users` table</li>
* <li>category_title => a human-friendly category name</li>
* <li>tags => associative list of "tag => score"</li>
* <li>date => date and time when the video was created</li>
public function get_video($id, $name = NULL)
{
$this->load->helper('video');
+ $this->load->helper('text');
- $query = $this->db->query('SELECT *
- FROM `videos`
- WHERE id = ?', $id);
+ $query = $this->db->query("SELECT v.*, u.username,
+ a.activation_code, a.content_ingested
+ FROM `videos` v
+ LEFT JOIN `videos_unactivated` a ON (v.id = a.video_id),
+ `users` u
+ WHERE v.user_id = u.id AND v.id = $id");
$video = array();
if ($query->num_rows() > 0)
}
else
{
- $video['err'] = 'INVALID_ID';
- return $video;
+ return FALSE;
}
// Convert JSON encoded string to arrays.
foreach ($video['assets'] as & $asset)
{
$def = substr($asset['res'], strpos($asset['res'], 'x') + 1) . 'p';
+ $asset['def'] = $def;
$asset['src'] = site_url('data/torrents/'. $video['name'] . '_'
. $def . '.'. $asset['ext']
. '.'. $this->config->item('default_torrent_ext'));
// Thumbnails
$video['thumbs'] = $this->get_thumbs($video['name'], $video['thumbs_count']);
- // TODO: user information
- $video['user_name'] = 'TODO';
+ // Shorted description
+ $video['shorted_description'] = character_limiter(
+ $video['description'], 128);
return $video;
}
/**
- * Increment a video parameter from DB: `views`, `likes` or `dislikes`.
+ * Adds a new uploaded video to the DB.
+ *
+ * @param string $name
+ * @param string $title
+ * @param string $description
+ * @param string $tags comma separated tags
+ * @param string $duration video duration formatted [HH:]mm:ss
+ * @param array $formats a dictionary corresponding to `formats` JSON
+ * column from `videos` table
+ * @param int $category_id
+ * @param int $user_id
+ * @param string $uploaded_file the raw video file uploaded by the user
+ * @return mixed returns an activation code on success or FALSE otherwise
+ */
+ public function add_video($name, $title, $description, $tags, $duration,
+ $formats, $category_id, $user_id, $uploaded_file)
+ {
+ // Tags.
+ $json_tags = array();
+ $tok = strtok($tags, ',');
+ while ($tok != FALSE)
+ {
+ $json_tags[trim($tok)] = 0;
+
+ $tok = strtok(',');
+ }
+ $json_tags = json_encode($json_tags);
+
+ // TODO formats
+ $json_formats = json_encode($formats);
+
+ $query = $this->db->query("INSERT INTO `videos`
+ (name, title, description, duration, formats, category_id,
+ user_id, tags, date)
+ VALUES ('$name', '$title', '$description', '$duration',
+ '$json_formats', $category_id,
+ $user_id, '$json_tags', utc_timestamp())");
+ if ($query === FALSE)
+ return FALSE;
+
+ // Find out the id of the new video added.
+ $query = $this->db->query("SELECT id from `videos`
+ WHERE name = '$name'");
+ if ($query->num_rows() === 0)
+ return FALSE;
+ $video_id = $query->row()->id;
+
+ // Activation code.
+ $activation_code = Videos_model::gen_activation_code();
+
+ $query = $this->db->query("INSERT INTO `videos_unactivated`
+ (video_id, activation_code, uploaded_file)
+ VALUES ($video_id, '$activation_code', '$uploaded_file')");
+
+ return $activation_code;
+ }
+
+ public function set_content_ingested($activation_code)
+ {
+ return $this->db->query("UPDATE `videos_unactivated`
+ SET content_ingested = 1
+ WHERE activation_code = '$activation_code'");
+ }
+
+ /**
+ * Activates a video by deleting its entry from `videos_unactivated`.
+ *
+ * @param mixed $code_or_id use type string for activation_code or type
+ * int for video_id
+ * @return boolean TRUE on success, FALSE otherwise
+ */
+ public function activate_video($code_or_id)
+ {
+ if (is_string($code_or_id))
+ $query = $this->db->query("SELECT uploaded_file from `videos_unactivated`
+ WHERE activation_code = '$code_or_id'");
+ else if (is_int($code_or_id))
+ $query = $this->db->query("SELECT uploaded_file from `videos_unactivated`
+ WHERE video_id = '$code_or_id'");
+ else
+ return FALSE;
+
+ if ($query->num_rows() > 0)
+ $uploaded_file = $query->row()->uploaded_file;
+ else
+ return FALSE;
+
+ if (is_string($code_or_id))
+ $query = $this->db->query("DELETE FROM `videos_unactivated`
+ WHERE activation_code = '$code_or_id'");
+ else if (is_int($code_or_id))
+ $query = $this->db->query("DELETE FROM `videos_unactivated`
+ WHERE video_id = '$code_or_id'");
+ else
+ return FALSE;
+
+ if (!$query)
+ return $query;
+
+ return unlink("data/upload/$uploaded_file");
+ }
+
+ public function get_unactivated_videos()
+ {
+ $query = $this->db->query("SELECT a.video_id, v.name, a.content_ingested
+ FROM `videos_unactivated` a, `videos` v
+ WHERE a.video_id = v.id AND a.content_ingested = 1");
+
+ if ($query->num_rows() > 0)
+ return $query->result_array();
+ else
+ return FALSE;
+ }
+
+ /**
+ * 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')
+ {
+ $this->load->helper('date');
+ $cond_hottest = '';
+
+ // Ordering
+ switch ($ordering)
+ {
+ case 'newest':
+ $order_statement = "ORDER BY time DESC";
+ break;
+ case 'hottest':
+ $order_statement = "ORDER BY score DESC, time DESC";
+ $cond_hottest = "AND c.likes + c.dislikes > 0";
+ break;
+
+ default:
+ $order_statement = "";
+ }
+
+ $query = $this->db->query(
+ "SELECT c.*, u.username, u.time_zone, (c.likes + c.dislikes) AS score
+ FROM `videos_comments` c, `users` u
+ WHERE c.user_id = u.id AND video_id = $video_id $cond_hottest
+ $order_statement
+ LIMIT $offset, $count");
+
+ if ($query->num_rows() == 0)
+ return array();
+
+ $comments = $query->result_array();
+
+ foreach ($comments as & $comment)
+ {
+ $comment['local_time'] = human_gmt_to_human_local($comment['time'],
+ $comment['time_zone']);
+ }
+
+ 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)
+ {
+ // Prepping content.
+ $content = substr($content, 0, 512);
+ $content = htmlspecialchars($content);
+ $content = nl2br($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[ $col ];
+ }
+
+ // Error
+ return FALSE;
+ }
+
+ public function vote_comment($comment_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 = $comment_id
+ AND target_type = 'vcomment'
+ AND action = '$action'
+ AND date = CURDATE()");
+ // User already voted today
+ if ($query->num_rows() > 0)
+ return -1;
+
+ $this->db->query("UPDATE `videos_comments`
+ SET $col = $col + 1
+ WHERE id = $comment_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', 'vcomment', $comment_id, CURDATE() )");
+
+ $query = $this->db->query("SELECT $col FROM `videos_comments`
+ WHERE id = $comment_id");
+
+ if ($query->num_rows() === 1)
+ {
+ $row = $query->row_array();
+ return $row[ $col ];
+ }
+
+ // Error
+ return FALSE;
+ }
+
public function get_thumbs($name, $count)
{
$thumbs = array();
public function search_videos($search_query, $offset = 0, $count = 0,
$category_id = NULL)
{
- // very short queries
- if (strlen($search_query) < 4)
+ $search_query = trim($search_query);
+ $search_query = str_replace("'", " ", $search_query);
+
+ // Search word fragments.
+ // sfc = search fragment condition
+ $sfc = "( ";
+ // sfr = search fragment relevance
+ $sfr = "( ";
+ $sep = ' +-*<>()~"';
+ $fragm = strtok($search_query, $sep);
+ while ($fragm !== FALSE)
{
- $search_cond = "(title LIKE '%$search_query%'
- OR description LIKE '%$search_query%'
- OR tags LIKE '%$search_query%')";
- $relevance = "( 0.5 * (title LIKE '%git%')
- + 0.2 * (description LIKE '%git%')
- + 0.3 * (tags LIKE '%git%') ) AS relevance";
+ $sfc .= "(title LIKE '%$fragm%'
+ OR description LIKE '%$fragm%'
+ OR tags LIKE '%$fragm%') OR ";
+
+ // Frament relevances are half of boolean relevances such
+ // that they will appear at the end of the results.
+ $sfr .= "0.25 * (title LIKE '%$fragm%')
+ + 0.1 * (description LIKE '%$fragm%')
+ + 0.15 * (tags LIKE '%$fragm%') + ";
+
+ $fragm = strtok($sep);
}
- // natural language mode
- else if (! $this->is_advanced_search_query($search_query))
+ $sfc = substr($sfc, 0, -4) . " )";
+ $sfr = substr($sfr, 0, -3) . " )";
+
+ if (! $this->is_advanced_search_query($search_query))
{
$search_cond = "MATCH (title, description, tags)
- AGAINST ('$search_query')";
- $relevance = "$search_cond AS relevance";
+ AGAINST ('$search_query') OR $sfc";
+ $relevance = "( MATCH (title, description, tags)
+ AGAINST ('$search_query') + $sfr ) AS relevance";
}
// boolean mode
else
{
$against = "AGAINST ('$search_query' IN BOOLEAN MODE)";
- $search_cond = "MATCH (title, description, tags)
- $against";
- $relevance = "( (0.5 * (MATCH(title) $against))
- + (0.3 * (MATCH(tags) $against))
- + (0.2 * (MATCH(description) $against)) ) AS relevance";
+ $search_cond = "( MATCH (title, description, tags)
+ $against) OR $sfc";
+ $relevance = "( 0.5 * (MATCH(title) $against)
+ + 0.3 * (MATCH(tags) $against)
+ + 0.2 * (MATCH(description) $against)
+ + $sfr) AS relevance";
}
if ($count === 0)
else
{
// TODO select data, description if details are needed
- $selected_columns = "id, name, title, duration, user_id, views,
- thumbs_count, default_thumb,
+ $selected_columns = "v.id, name, title, duration, user_id, views,
+ thumbs_count, default_thumb, u.username,
(views + likes - dislikes) AS score,
$relevance";
$order = "ORDER BY relevance DESC, score DESC";
else
$category_cond = "";
- $search_query = trim($search_query);
-
$str_query = "SELECT $selected_columns
- FROM `videos`
- WHERE $category_cond $search_cond
+ FROM `videos` v, `users` u
+ WHERE v.user_id = u.id AND $category_cond ( $search_cond )
$order
$limit";
+// echo "<p>$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.
return (preg_match('/\*|\+|\-|>|\<|\(|\)|~|"/', $search_query) == 0
? FALSE : TRUE);
}
+
+ public static function gen_activation_code()
+ {
+ $ci =& get_instance();
+
+ $activation_code = substr(
+ sha1($ci->config->item('encryption_key')
+ . mt_rand()),
+ 0,
+ 16);
+
+ return $activation_code;
+ }
}
/* End of file videos_model.php */
projects / living-lab-site.git / blobdiff