gnu-social/plugins/Poll/Poll.php

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<?php
/**
* Data class to mark notices as bookmarks
*
* PHP version 5
*
* @category PollPlugin
* @package StatusNet
* @author Brion Vibber <brion@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 the poll options and such
*
* @category PollPlugin
* @package StatusNet
* @author Brion Vibber <brion@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*
* @see DB_DataObject
*/
class Poll extends Managed_DataObject
{
public $__table = 'poll'; // table name
public $id; // char(36) primary key not null -> UUID
public $uri;
public $profile_id; // int -> profile.id
public $question; // text
public $options; // text; newline(?)-delimited
public $created; // datetime
/**
* 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 $kv array of key-value mappings
*
* @return Bookmark object found, or null for no hits
*
*/
function pkeyGet($kv)
{
return Memcached_DataObject::pkeyGet('Poll', $kv);
}
/**
* The One True Thingy that must be defined and declared.
*/
public static function schemaDef()
{
return array(
'description' => 'Per-notice poll data for Poll plugin',
'fields' => array(
'id' => array('type' => 'char', 'length' => 36, 'not null' => true, 'description' => 'UUID'),
'uri' => array('type' => 'varchar', 'length' => 255, 'not null' => true),
'profile_id' => array('type' => 'int'),
'question' => array('type' => 'text'),
'options' => array('type' => 'text'),
'created' => array('type' => 'datetime', 'not null' => true),
),
'primary key' => array('id'),
'unique keys' => array(
'poll_uri_key' => array('uri'),
),
);
}
/**
* Get a bookmark based on a notice
*
* @param Notice $notice Notice to check for
*
* @return Poll found poll or null
*/
static function getByNotice($notice)
{
return self::staticGet('uri', $notice->uri);
}
function getOptions()
{
return explode("\n", $this->options);
}
2011-03-10 21:41:23 +00:00
/**
* Is this a valid selection index?
*
* @param numeric $selection (1-based)
* @return boolean
*/
function isValidSelection($selection)
{
if ($selection != intval($selection)) {
return false;
}
if ($selection < 1 || $selection > count($this->getOptions())) {
return false;
}
return true;
}
function getNotice()
{
return Notice::staticGet('uri', $this->uri);
}
function bestUrl()
{
return $this->getNotice()->bestUrl();
}
/**
* Get the response of a particular user to this poll, if any.
*
* @param Profile $profile
* @return Poll_response object or null
*/
function getResponse(Profile $profile)
{
$pr = Poll_response::pkeyGet(array('poll_id' => $this->id,
'profile_id' => $profile->id));
return $pr;
}
function countResponses()
{
$pr = new Poll_response();
$pr->poll_id = $this->id;
$pr->groupBy('selection');
$pr->selectAdd('count(profile_id) as votes');
$pr->find();
$raw = array();
while ($pr->fetch()) {
// Votes list 1-based
// Array stores 0-based
$raw[$pr->selection - 1] = $pr->votes;
}
$counts = array();
foreach (array_keys($this->getOptions()) as $key) {
if (isset($raw[$key])) {
$counts[$key] = $raw[$key];
} else {
$counts[$key] = 0;
}
}
return $counts;
}
/**
* Save a new poll notice
*
* @param Profile $profile
* @param string $question
* @param array $opts (poll responses)
*
* @return Notice saved notice
*/
static function saveNew($profile, $question, $opts, $options=null)
{
if (empty($options)) {
$options = array();
}
$p = new Poll();
$p->id = UUID::gen();
$p->profile_id = $profile->id;
$p->question = $question;
$p->options = implode("\n", $opts);
if (array_key_exists('created', $options)) {
$p->created = $options['created'];
} else {
$p->created = common_sql_now();
}
if (array_key_exists('uri', $options)) {
$p->uri = $options['uri'];
} else {
$p->uri = common_local_url('showpoll',
array('id' => $p->id));
}
common_log(LOG_DEBUG, "Saving poll: $p->id $p->uri");
$p->insert();
// TRANS: Notice content creating a poll.
// TRANS: %1$s is the poll question, %2$s is a link to the poll.
$content = sprintf(_m('Poll: %1$s %2$s'),
$question,
$p->uri);
$link = '<a href="' . htmlspecialchars($p->uri) . '">' . htmlspecialchars($question) . '</a>';
// TRANS: Rendered version of the notice content creating a poll.
// TRANS: %s is a link to the poll with the question as link description.
$rendered = sprintf(_m('Poll: %s'), $link);
$tags = array('poll');
$replies = array();
$options = array_merge(array('urls' => array(),
'rendered' => $rendered,
'tags' => $tags,
'replies' => $replies,
'object_type' => PollPlugin::POLL_OBJECT),
$options);
if (!array_key_exists('uri', $options)) {
$options['uri'] = $p->uri;
}
$saved = Notice::saveNew($profile->id,
$content,
array_key_exists('source', $options) ?
$options['source'] : 'web',
$options);
return $saved;
}
}