X-Git-Url: http://p2p-next.cs.pub.ro/gitweb/?a=blobdiff_plain;f=application%2Fmodels%2Fvideos_model.php;h=da7cdfe6b174ef1020fe98ad06f7ba369522b13e;hb=faf92fa039c2be353c94d0d0e8e488e56eaa5058;hp=c8eeb7f7613a6d9baa8d070afe5c9b08ec0d3d44;hpb=f8bfacb65b055af85f639e65aff66a680d0d3231;p=living-lab-site.git diff --git a/application/models/videos_model.php b/application/models/videos_model.php index c8eeb7f..da7cdfe 100644 --- a/application/models/videos_model.php +++ b/application/models/videos_model.php @@ -11,6 +11,8 @@ class Videos_model extends CI_Model { public function __construct() { + parent::__construct(); + if ($this->db === NULL) { $this->load->library('singleton_db'); @@ -19,10 +21,13 @@ class Videos_model extends CI_Model { } /** - * 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 $ordering control videos ording by these @@ -39,11 +44,12 @@ class Videos_model extends CI_Model { *
  • id, name, title, duration, thumbs_count, default_thumb, views => from DB
    • *
  • shorted_title => ellipsized title
    • *
  • video_url => P2P-Tube video URl
    • - *
  • TODO: user_id, user_name
    • + *
  • user_id, user_name
    • *
  • thumbs => thumbnail images' URLs
    • * */ - public function get_videos_summary($category_id, $offset, $count, $ordering = 'hottest') + public function get_videos_summary($category_id, $user, $offset, $count, + $ordering = 'hottest') { $this->load->helper('text'); @@ -64,19 +70,39 @@ class Videos_model extends CI_Model { $order_statement = ""; } + // Category filtering + if ($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 & $video) { @@ -91,27 +117,47 @@ class Videos_model extends CI_Model { // Ellipsized title //$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; } /** @@ -133,7 +179,7 @@ class Videos_model extends CI_Model { * 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} - *
  • user_name => TODO: user name from `users` table
    • + *
  • username => user name from `users` table
    • *
  • category_title => a human-friendly category name
    • *
  • tags => associative list of "tag => score"
    • *
  • date => date and time when the video was created
    • @@ -144,9 +190,9 @@ class Videos_model extends CI_Model { { $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) @@ -193,27 +239,140 @@ class Videos_model extends CI_Model { // 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 $ordering control comments ording by these possibilities: + * + * @return array an array with comments + */ + public function get_video_comments($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(); @@ -240,6 +399,7 @@ class Videos_model extends CI_Model { $category_id = NULL) { $search_query = trim($search_query); + $search_query = str_replace("'", " ", $search_query); // Search word fragments. // sfc = search fragment condition @@ -308,10 +468,10 @@ class Videos_model extends CI_Model { $str_query = "SELECT $selected_columns FROM `videos` - WHERE $category_cond $search_cond + WHERE $category_cond ( $search_cond ) $order $limit"; - //echo "

    $str_query

    "; +// echo "

    $str_query

    "; $query = $this->db->query($str_query); if ($query->num_rows() > 0) @@ -363,6 +523,22 @@ class Videos_model extends CI_Model { 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.