*
* @param int $category_id DB category ID; pass NULL for all
* categories
- * @param mixed $user an user_id (as int) or an username
+ * @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
+ * @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 $unactivated whether to retrieve or not ingested unactivated
+ * videos; typically only administrators should see this kind of assets
+ * @return array a list of videos, each one being an assoc array with:
* <ul>
* <li>id, name, title, duration, thumbs_count, default_thumb, views => from DB</li>
* <li>shorted_title => ellipsized title</li>
* </ul>
*/
public function get_videos_summary($category_id, $user, $offset, $count,
- $ordering = 'hottest')
+ $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";
$cond_user = "u.username = '$user'";
}
- $query = $this->db->query(
- "SELECT v.id, name, title, duration, user_id, u.username, views,
+ if ($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
- FROM `videos` v, `users` u
+ (views + likes - dislikes) AS score,
+ a.activation_code, a.content_ingested";
+
+ $query = $this->db->query(
+ "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 $offset, $count");
if ($query->num_rows() > 0)
+ {
+ if ($count === TRUE)
+ return $query->row()->count;
+
$videos = $query->result_array();
+ }
else
return array();
* 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
+ * @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, $user = NULL)
+ public function get_videos_count($category_id = NULL, $user = NULL,
+ $unactivated = FALSE)
{
- if ($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` 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 FALSE;
+ 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>
$this->load->helper('video');
$this->load->helper('text');
- $query = $this->db->query("SELECT v.*, u.username
- FROM `videos` v, `users` u
- WHERE v.user_id = u.id AND v.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.
return $video;
}
+ /**
+ * 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.
*
// Search word fragments.
// sfc = search fragment condition
$sfc = "( ";
- // sfr = serach fragment relevation
+ // sfr = search fragment relevance
$sfr = "( ";
$sep = ' +-*<>()~"';
$fragm = strtok($search_query, $sep);
OR description LIKE '%$fragm%'
OR tags LIKE '%$fragm%') OR ";
- // Frament relevations are half of boolean relevations such
+ // 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%')
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";
$category_cond = "";
$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>";
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