<?php /* Question2Answer (c) Gideon Greenspan http://www.question2answer.org/ File: qa-include/qa-layer-voters-flaggers.php Version: See define()s at top of qa-include/qa-base.php Description: Theme layer class for viewing voters and flaggers This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 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 General Public License for more details. More about this license: http://www.question2answer.org/license.php */ class qa_html_theme_layer extends qa_html_theme_base { private $qa_voters_flaggers_queue=array(); private $qa_voters_flaggers_cache=array(); // Utility functions for this layer private function queue_post_voters_flaggers($post) { if (!qa_user_post_permit_error('permit_view_voters_flaggers', $post)) { $postids=array(@$post['postid'], @$post['opostid']); // opostid can be relevant for flags foreach ($postids as $postid) if (isset($postid) && !isset($this->qa_voters_flaggers_cache[$postid])) $this->qa_voters_flaggers_queue[$postid]=true; } } private function queue_raw_posts_voters_flaggers($posts) { if (is_array($posts)) foreach ($posts as $post) if (isset($post['raw'])) $this->queue_post_voters_flaggers($post['raw']); } private function retrieve_queued_voters_flaggers() { if (count($this->qa_voters_flaggers_queue)) { require_once QA_INCLUDE_DIR.'qa-db-votes.php'; $postids=array_keys($this->qa_voters_flaggers_queue); foreach ($postids as $postid) $this->qa_voters_flaggers_cache[$postid]=array(); $newvotersflaggers=qa_db_uservoteflag_posts_get($postids); if (QA_FINAL_EXTERNAL_USERS) { $keyuserids=array(); foreach ($newvotersflaggers as $voterflagger) $keyuserids[$voterflagger['userid']]=true; $useridhandles=qa_get_public_from_userids(array_keys($keyuserids)); foreach ($newvotersflaggers as $index => $voterflagger) $newvotersflaggers[$index]['handle']=@$useridhandles[$voterflagger['userid']]; } foreach ($newvotersflaggers as $voterflagger) $this->qa_voters_flaggers_cache[$voterflagger['postid']][]=$voterflagger; $this->qa_voters_flaggers_queue=array(); } } private function get_post_voters_flaggers($post, $postid) { require_once QA_INCLUDE_DIR.'qa-util-sort.php'; if (!isset($this->qa_voters_flaggers_cache[$postid])) { $this->queue_post_voters_flaggers($post); $this->retrieve_queued_voters_flaggers(); } $votersflaggers=@$this->qa_voters_flaggers_cache[$postid]; if (isset($votersflaggers)) qa_sort_by($votersflaggers, 'handle'); return $votersflaggers; } // Collect up all required postids for the entire page to save DB queries - common case where whole page output public function main() { foreach ($this->content as $key => $part) { if (strpos($key, 'q_list')===0) $this->queue_raw_posts_voters_flaggers(@$part['qs']); elseif (strpos($key, 'q_view')===0) { $this->queue_post_voters_flaggers($part['raw']); $this->queue_raw_posts_voters_flaggers($part['c_list']['cs']); } elseif (strpos($key, 'a_list')===0) { if (!empty($part)) { $this->queue_raw_posts_voters_flaggers($part['as']); foreach ($part['as'] as $a_item) $this->queue_raw_posts_voters_flaggers(@$a_item['c_list']['cs']); } } } qa_html_theme_base::main(); } // Other functions which also collect up required postids for lists to save DB queries - helps with widget output and Ajax calls public function q_list_items($q_items) { $this->queue_raw_posts_voters_flaggers($q_items); qa_html_theme_base::q_list_items($q_items); } public function a_list_items($a_items) { $this->queue_raw_posts_voters_flaggers($a_items); qa_html_theme_base::a_list_items($a_items); } public function c_list_items($c_items) { $this->queue_raw_posts_voters_flaggers($c_items); qa_html_theme_base::c_list_items($c_items); } // Actual output of the voters and flaggers public function vote_count($post) { $votersflaggers=$this->get_post_voters_flaggers($post['raw'], @$post['vote_opostid'] ? $post['raw']['opostid'] : $post['raw']['postid']); $tooltip=''; if (isset($votersflaggers)) { $uphandles=''; $downhandles=''; foreach ($votersflaggers as $voterflagger) { if ($voterflagger['vote']>0) $uphandles.=(strlen($uphandles) ? ', ' : '').qa_html($voterflagger['handle']); if ($voterflagger['vote']<0) $downhandles.=(strlen($downhandles) ? ', ' : '').qa_html($voterflagger['handle']); $tooltip=trim((strlen($uphandles) ? ('↑ '.$uphandles) : '')."\n\n".(strlen($downhandles) ? ('↓ '.$downhandles) : '')); } } $post['vote_count_tags']=@$post['vote_count_tags'].' title="'.$tooltip.'"'; qa_html_theme_base::vote_count($post); } public function post_meta_flags($post, $class) { $postid=@$post['raw']['opostid']; if (!isset($postid)) $postid=@$post['raw']['postid']; $tooltip=''; if (isset($postid)) { $votersflaggers=$this->get_post_voters_flaggers($post, $postid); if (isset($votersflaggers)) foreach ($votersflaggers as $voterflagger) if ($voterflagger['flag']>0) $tooltip.=(strlen($tooltip) ? ', ' : '').qa_html($voterflagger['handle']); } if (strlen($tooltip)) $this->output('<span title="⚑ '.$tooltip.'">'); qa_html_theme_base::post_meta_flags($post, $class); if (strlen($tooltip)) $this->output('</span>'); } } /* Omit PHP closing tag to help avoid accidental output */