forked from GNUsocial/gnu-social
495 lines
14 KiB
PHP
495 lines
14 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* Microapp plugin for Questions and Answers
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category QnA
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Question and Answer plugin
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*
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* @category Plugin
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class QnAPlugin extends MicroAppPlugin
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{
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/**
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* Set up our tables (question and answer)
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*
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* @see Schema
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* @see ColumnDef
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onCheckSchema()
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{
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$schema = Schema::get();
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$schema->ensureTable('qna_question', QnA_Question::schemaDef());
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$schema->ensureTable('qna_answer', QnA_Answer::schemaDef());
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$schema->ensureTable('qna_vote', QnA_Vote::schemaDef());
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return true;
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}
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/**
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* Load related modules when needed
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*
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* @param string $cls Name of the class to be loaded
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onAutoload($cls)
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{
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$dir = dirname(__FILE__);
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switch ($cls)
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{
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case 'QnanewquestionAction':
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case 'QnanewanswerAction':
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case 'QnashowquestionAction':
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case 'QnaclosequestionAction':
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case 'QnashowanswerAction':
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case 'QnareviseanswerAction':
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case 'QnavoteAction':
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include_once $dir . '/actions/'
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. strtolower(mb_substr($cls, 0, -6)) . '.php';
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return false;
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case 'QnanewquestionForm':
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case 'QnashowquestionForm':
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case 'QnanewanswerForm':
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case 'QnashowanswerForm':
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case 'QnareviseanswerForm':
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case 'QnavoteForm':
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include_once $dir . '/lib/' . strtolower($cls).'.php';
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break;
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case 'QnA_Question':
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case 'QnA_Answer':
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case 'QnA_Vote':
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include_once $dir . '/classes/' . $cls.'.php';
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return false;
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break;
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default:
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return true;
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}
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}
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/**
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* Map URLs to actions
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*
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* @param Net_URL_Mapper $m path-to-action mapper
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onRouterInitialized($m)
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{
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$UUIDregex = '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}';
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$m->connect(
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'main/qna/newquestion',
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array('action' => 'qnanewquestion')
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);
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$m->connect(
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'answer/qna/closequestion',
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array('action' => 'qnaclosequestion')
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);
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$m->connect(
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'main/qna/newanswer',
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array('action' => 'qnanewanswer')
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);
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$m->connect(
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'main/qna/reviseanswer',
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array('action' => 'qnareviseanswer')
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);
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$m->connect(
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'question/vote/:id',
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array('action' => 'qnavote', 'type' => 'question'),
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array('id' => $UUIDregex)
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);
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$m->connect(
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'question/:id',
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array('action' => 'qnashowquestion'),
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array('id' => $UUIDregex)
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);
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$m->connect(
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'answer/vote/:id',
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array('action' => 'qnavote', 'type' => 'answer'),
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array('id' => $UUIDregex)
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);
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$m->connect(
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'answer/:id',
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array('action' => 'qnashowanswer'),
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array('id' => $UUIDregex)
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);
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return true;
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}
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function onPluginVersion(&$versions)
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{
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$versions[] = array(
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'name' => 'QnA',
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'version' => STATUSNET_VERSION,
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'author' => 'Zach Copley',
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'homepage' => 'http://status.net/wiki/Plugin:QnA',
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'description' =>
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_m('Question and Answers micro-app.')
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);
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return true;
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}
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function appTitle() {
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return _m('Question');
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}
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function tag() {
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return 'question';
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}
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function types() {
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return array(
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QnA_Question::OBJECT_TYPE,
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QnA_Answer::OBJECT_TYPE
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);
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}
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/**
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* Given a parsed ActivityStreams activity, save it into a notice
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* and other data structures.
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*
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* @param Activity $activity
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* @param Profile $actor
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* @param array $options=array()
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*
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* @return Notice the resulting notice
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*/
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function saveNoticeFromActivity($activity, $actor, $options=array())
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{
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if (count($activity->objects) != 1) {
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throw new Exception('Too many activity objects.');
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}
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$questionObj = $activity->objects[0];
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if ($questionObj->type != QnA_Question::OBJECT_TYPE) {
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throw new Exception('Wrong type for object.');
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}
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$notice = null;
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switch ($activity->verb) {
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case ActivityVerb::POST:
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$notice = QnA_Question::saveNew(
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$actor,
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$questionObj->title,
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$questionObj->summary,
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$options
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);
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break;
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case Answer::ObjectType:
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$question = QnA_Question::staticGet('uri', $questionObj->id);
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if (empty($question)) {
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// FIXME: save the question
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throw new Exception("Answer to unknown question.");
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}
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$notice = QnA_Answer::saveNew($actor, $question, $options);
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break;
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default:
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throw new Exception("Unknown object type received by QnA Plugin");
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}
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return $notice;
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}
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/**
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* Turn a Notice into an activity object
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*
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* @param Notice $notice
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*
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* @return ActivityObject
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*/
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function activityObjectFromNotice($notice)
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{
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$question = null;
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switch ($notice->object_type) {
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case QnA_Question::OBJECT_TYPE:
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$question = QnA_Question::fromNotice($notice);
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break;
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case QnA_Answer::OBJECT_TYPE:
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$answer = QnA_Answer::fromNotice($notice);
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$question = $answer->getQuestion();
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break;
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}
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if (empty($question)) {
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throw new Exception("Unknown object type.");
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}
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$notice = $question->getNotice();
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if (empty($notice)) {
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throw new Exception("Unknown question notice.");
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}
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$obj = new ActivityObject();
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$obj->id = $question->uri;
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$obj->type = QnA_Question::OBJECT_TYPE;
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$obj->title = $question->title;
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$obj->link = $notice->bestUrl();
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// XXX: probably need other stuff here
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return $obj;
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}
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/**
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* Output our CSS class for QnA notice list elements
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*
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* @param NoticeListItem $nli The item being shown
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*
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* @return boolean hook value
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*/
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function onStartOpenNoticeListItemElement($nli)
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{
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$type = $nli->notice->object_type;
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switch($type)
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{
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case QnA_Question::OBJECT_TYPE:
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$id = (empty($nli->repeat)) ? $nli->notice->id : $nli->repeat->id;
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$class = 'hentry notice question';
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if ($nli->notice->scope != 0 && $nli->notice->scope != 1) {
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$class .= ' limited-scope';
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}
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$nli->out->elementStart(
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'li', array(
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'class' => $class,
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'id' => 'notice-' . $id
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)
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);
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Event::handle('EndOpenNoticeListItemElement', array($nli));
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return false;
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break;
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case QnA_Answer::OBJECT_TYPE:
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$id = (empty($nli->repeat)) ? $nli->notice->id : $nli->repeat->id;
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$cls = array('hentry', 'notice', 'answer');
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$answer = QnA_Answer::staticGet('uri', $nli->notice->uri);
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if (!empty($answer) && !empty($answer->best)) {
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$cls[] = 'best';
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}
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$nli->out->elementStart(
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'li',
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array(
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'class' => implode(' ', $cls),
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'id' => 'notice-' . $id
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)
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);
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Event::handle('EndOpenNoticeListItemElement', array($nli));
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return false;
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break;
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default:
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return true;
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}
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return true;
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}
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/**
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* Custom HTML output for our notices
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*
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* @param Notice $notice
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* @param HTMLOutputter $out
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*/
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function showNotice($notice, $out)
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{
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switch ($notice->object_type) {
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case QnA_Question::OBJECT_TYPE:
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return $this->showNoticeQuestion($notice, $out);
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case QnA_Answer::OBJECT_TYPE:
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return $this->showNoticeAnswer($notice, $out);
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default:
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// TRANS: Exception thrown when performing an unexpected action on a question.
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// TRANS: %s is the unpexpected object type.
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throw new Exception(
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sprintf(
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_m('Unexpected type for QnA plugin: %s.'),
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$notice->object_type
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)
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);
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}
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}
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function showNoticeQuestion($notice, $out)
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{
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$user = common_current_user();
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// @hack we want regular rendering, then just add stuff after that
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$nli = new NoticeListItem($notice, $out);
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$nli->showNotice();
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$out->elementStart('div', array('class' => 'entry-content question-description'));
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$question = QnA_Question::getByNotice($notice);
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if (!empty($question)) {
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if (empty($user)) {
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$form = new QnashowquestionForm($out, $question);
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$form->show();
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} else {
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$profile = $user->getProfile();
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$answer = $question->getAnswer($profile);
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if (empty($answer)) {
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$form = new QnanewanswerForm($out, $question);
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$form->show();
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} else {
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$form = new QnashowquestionForm($out, $question);
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$form->show();
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}
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}
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} else {
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$out->text(_m('Question data is missing.'));
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}
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$out->elementEnd('div');
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// @fixme
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$out->elementStart('div', array('class' => 'entry-content'));
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}
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function showNoticeAnswer($notice, $out)
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{
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$user = common_current_user();
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$answer = QnA_Answer::getByNotice($notice);
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$question = $answer->getQuestion();
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$nli = new NoticeListItem($notice, $out);
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$nli->showNotice();
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$out->elementStart('div', array('class' => 'entry-content answer-content'));
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if (!empty($answer)) {
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$form = new QnashowanswerForm($out, $answer);
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$form->show();
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} else {
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$out->text(_m('Answer data is missing.'));
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}
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$out->elementEnd('div');
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// @fixme
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$out->elementStart('div', array('class' => 'entry-content'));
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}
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static function shorten($content, $notice)
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{
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$short = null;
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if (Notice::contentTooLong($content)) {
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common_debug("content too long");
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$max = Notice::maxContent();
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$short = mb_substr($content, 0, $max - 1);
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$short .= sprintf(
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'<a href="%s" rel="more" title="%s">…</a>',
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$notice->uri,
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_m('more')
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);
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} else {
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$short = $content;
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}
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return $short;
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}
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/**
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* Form for our app
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*
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* @param HTMLOutputter $out
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* @return Widget
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*/
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function entryForm($out)
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{
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return new QnanewquestionForm($out);
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}
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/**
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* When a notice is deleted, clean up related tables.
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*
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* @param Notice $notice
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*/
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function deleteRelated($notice)
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{
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switch ($notice->object_type) {
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case QnA_Question::OBJECT_TYPE:
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common_log(LOG_DEBUG, "Deleting question from notice...");
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$question = QnA_Question::fromNotice($notice);
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$question->delete();
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break;
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case QnA_Answer::OBJECT_TYPE:
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common_log(LOG_DEBUG, "Deleting answer from notice...");
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$answer = QnA_Answer::fromNotice($notice);
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common_log(LOG_DEBUG, "to delete: $answer->id");
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$answer->delete();
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break;
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default:
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common_log(LOG_DEBUG, "Not deleting related, wtf...");
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}
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}
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function onEndShowScripts($action)
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{
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$action->script($this->path('js/qna.js'));
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return true;
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}
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function onEndShowStyles($action)
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{
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$action->cssLink($this->path('css/qna.css'));
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return true;
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}
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}
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