gnu-social/plugins/QnA/classes/QnA_Vote.php

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<?php
/**
* Data class to save users votes for
*
* PHP version 5
*
* @category QnA
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* For storing votes on question and answers
*
* @category QnA
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*
* @see DB_DataObject
*/
class QnA_Vote extends Managed_DataObject
{
const UP = 'http://activitystrea.ms/schema/1.0/like';
const DOWN = 'http://activityschema.org/object/dislike'; // Gar!
public $__table = 'qa_vote'; // table name
public $id; // char(36) primary key not null -> UUID
public $question_id; // char(36) -> question.id UUID
public $answer_id; // char(36) -> question.id UUID
public $type // tinyint -> vote: up (1) or down (-1)
public $profile_id; // int -> question.id
public $created; // datetime
/**
* Get an instance by key
*
* This is a utility method to get a single instance with a given key value.
*
* @param string $k Key to use to lookup
* @param mixed $v Value to lookup
*
* @return QnA_Vote object found, or null for no hits
*
*/
function staticGet($k, $v=null)
{
return Memcached_DataObject::staticGet('QnA_Vote', $k, $v);
}
/**
* Get an instance by compound key
*
* This is a utility method to get a single instance with a given set of
* key-value pairs. Usually used for the primary key for a compound key; thus
* the name.
*
* @param array $kv array of key-value mappings
*
* @return QnA_Vote object found, or null for no hits
*
*/
function pkeyGet($kv)
{
return Memcached_DataObject::pkeyGet('QnA_Vote', $kv);
}
/**
* The One True Thingy that must be defined and declared.
*/
public static function schemaDef()
{
return array(
'description' => 'For storing votes on questions and answers',
'fields' => array(
'id' => array(
'type' => 'char',
'length' => 36,
'not null' => true,
'description' => 'UUID of the vote'
),
'question_id' => array(
'type' => 'char',
'length' => 36,
'not null' => true,
'description' => 'UUID of question being voted on'
),
'answer_id' => array(
'type' => 'char',
'length' => 36,
'not null' => true,
'description' => 'UUID of answer being voted on'
),
'vote' => array('type' => 'int', 'size' => 'tiny'),
'profile_id' => array('type' => 'int'),
'created' => array('type' => 'datetime', 'not null' => true),
),
'primary key' => array('id'),
'indexes' => array(
'profile_id_question_Id_index' => array(
'profile_id',
'question_id'
),
'profile_id_question_Id_index' => array(
'profile_id',
'answer_id'
)
)
);
}
/**
* Save a vote on a question or answer
*
* @param Profile $profile
* @param QnA_Question the question being voted on
* @param QnA_Answer the answer being voted on
* @param vote
* @param array
*
* @return Void
*/
static function save($profile, $question, $answer, $vote)
{
$v = new QnA_Vote();
$v->id = UUID::gen();
$v->profile_id = $profile->id;
$v->question_id = $question->id;
$v->answer_id = $answer->id;
$v->vote = $vote;
$v->created = common_sql_now();
common_log(LOG_DEBUG, "Saving vote: $v->id $v->vote");
$v->insert();
}
}