/**
* Data class for favorites tally
*
- * A class representing a total number of times a notice has been favorited
+ * A class representing a total number of times a notice has been favored
*
* @category Action
* @package StatusNet
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*/
-
-class Fave_tally extends Memcached_DataObject
+class Fave_tally extends Managed_DataObject
{
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $__table = 'fave_tally'; // table name
public $notice_id; // int(4) primary_key not_null
- public $count; // int(4) primary_key not_null
+ public $count; // int(4) not_null
public $modified; // datetime not_null default_0000-00-00%2000%3A00%3A00
- /* Static get */
- function staticGet($k, $v = NULL) { return Memcached_DataObject::staticGet('Fave_tally', $k, $v); }
-
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
/**
* return key definitions for DB_DataObject
*
- * @return array key definitions
+ * DB_DataObject needs to know about keys that the table has, since it
+ * won't appear in StatusNet's own keys list. In most cases, this will
+ * simply reference your keyTypes() function.
+ *
+ * @return array list of key field names
*/
-
function keys()
{
- return array('notice_id' => 'K');
+ return array_keys($this->keyTypes());
}
/**
- * return key definitions for DB_DataObject
+ * return key definitions for Memcached_DataObject
+ *
+ * Our caching system uses the same key definitions, but uses a different
+ * method to get them. This key information is used to store and clear
+ * cached data, so be sure to list any key that will be used for static
+ * lookups.
*
- * @return array key definitions
+ * @return array associative array of key definitions, field name to type:
+ * 'K' for primary key: for compound keys, add an entry for each component;
+ * 'U' for unique keys: compound keys are not well supported here.
*/
-
function keyTypes()
{
- return $this->keys();
+ return array('notice_id' => 'K');
}
/**
* Magic formula for non-autoincrementing integer primary keys
*
+ * If a table has a single integer column as its primary key, DB_DataObject
+ * assumes that the column is auto-incrementing and makes a sequence table
+ * to do this incrementation. Since we don't need this for our class, we
+ * overload this method and return the magic formula that DB_DataObject needs.
+ *
* @return array magic three-false array that stops auto-incrementing.
*/
-
function sequenceKey()
{
return array(false, false, false);
*
* @return User_flag_profile found object or null
*/
-
function pkeyGet($kv)
{
return Memcached_DataObject::pkeyGet('Fave_tally', $kv);
/**
* Increment a notice's tally
*
- * @param integer $notice_id ID of notice we're tallying
+ * @param integer $noticeID ID of notice we're tallying
*
- * @return integer the total times the notice has been faved
+ * @return Fave_tally $tally the tally data object
*/
-
- static function increment($notice_id)
+ static function increment($noticeID)
{
- $tally = Fave_tally::ensureTally($notice_id);
- $count = $tally->count + 1;
- $tally->count = $count;
- $result = $tally->update();
- $tally->free();
+ $tally = Fave_tally::ensureTally($noticeID);
+
+ $orig = clone($tally);
+ $tally->count++;
+ $result = $tally->update($orig);
- if ($result === false) {
+ if (!$result) {
$msg = sprintf(
- _m("Couldn't update favorite tally for notice ID %d.", $notice_id)
+ // TRANS: Server exception.
+ // TRANS: %d is the notice ID (number).
+ _m("Could not update favorite tally for notice ID %d."),
+ $noticeID
);
throw new ServerException($msg);
}
- return $count;
+ return $tally;
}
/**
* Decrement a notice's tally
*
- * @param integer $notice_id ID of notice we're tallying
+ * @param integer $noticeID ID of notice we're tallying
*
- * @return integer the total times the notice has been faved
+ * @return Fave_tally $tally the tally data object
*/
-
- static function decrement($notice_id)
+ static function decrement($noticeID)
{
- $tally = Fave_tally::ensureTally($notice_id);
-
- $count = 0;
+ $tally = Fave_tally::ensureTally($noticeID);
if ($tally->count > 0) {
- $count = $tally->count - 1;
- $tally->count = $count;
- $result = $tally->update();
- $tally->free();
+ $orig = clone($tally);
+ $tally->count--;
+ $result = $tally->update($orig);
- if ($result === false) {
+ if (!$result) {
$msg = sprintf(
- _m("Couldn't update favorite tally for notice ID %d.", $notice_id)
+ // TRANS: Server exception.
+ // TRANS: %d is the notice ID (number).
+ _m("Could not update favorite tally for notice ID %d."),
+ $noticeID
);
throw new ServerException($msg);
}
}
- return $count;
+ return $tally;
}
/**
* Ensure a tally exists for a given notice. If we can't find
- * one create one.
+ * one create one with the total number of existing faves
*
- * @param integer $notice_id
+ * @param integer $noticeID
*
* @return Fave_tally the tally data object
*/
-
- static function ensureTally($notice_id)
+ static function ensureTally($noticeID)
{
- $tally = new Fave_tally();
- $result = $tally->get($notice_id);
-
- if (empty($result)) {
- $tally->notice_id = $notice_id;
- $tally->count = 0;
- if ($tally->insert() === false) {
+ $tally = Fave_tally::getKV('notice_id', $noticeID);
+
+ if (!$tally) {
+ $tally = new Fave_tally();
+ $tally->notice_id = $noticeID;
+ $tally->count = Fave_tally::countExistingFaves($noticeID);
+ $result = $tally->insert();
+ if (!$result) {
$msg = sprintf(
- _m("Couldn't create favorite tally for notice ID %d.", $notice_id)
+ // TRANS: Server exception.
+ // TRANS: %d is the notice ID (number).
+ _m("Could not create favorite tally for notice ID %d."),
+ $noticeID
);
throw new ServerException($msg);
}
return $tally;
}
+
+ /**
+ * Count the number of faves a notice already has. Used to initalize
+ * a tally for a notice.
+ *
+ * @param integer $noticeID ID of the notice to count faves for
+ *
+ * @return integer $total total number of time the notice has been favored
+ */
+ static function countExistingFaves($noticeID)
+ {
+ $fave = new Fave();
+ $fave->notice_id = $noticeID;
+ $total = $fave->count();
+ return $total;
+ }
}