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This project lived only on the server without version control. This is now the starting point for the repository.
101 lines
2.9 KiB
PHP
101 lines
2.9 KiB
PHP
<?php
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/*
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Question2Answer by Gideon Greenspan and contributors
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http://www.question2answer.org/
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Description: Server-side response to Ajax request based on ask a question title
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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 General Public License for more details.
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More about this license: http://www.question2answer.org/license.php
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*/
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require_once QA_INCLUDE_DIR . 'db/selects.php';
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require_once QA_INCLUDE_DIR . 'util/string.php';
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require_once QA_INCLUDE_DIR . 'app/users.php';
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require_once QA_INCLUDE_DIR . 'app/format.php';
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// Collect the information we need from the database
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$intitle = qa_post_text('title');
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$doaskcheck = qa_opt('do_ask_check_qs');
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$doexampletags = qa_using_tags() && qa_opt('do_example_tags');
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if ($doaskcheck || $doexampletags) {
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$countqs = max($doexampletags ? QA_DB_RETRIEVE_ASK_TAG_QS : 0, $doaskcheck ? qa_opt('page_size_ask_check_qs') : 0);
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$relatedquestions = qa_db_select_with_pending(
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qa_db_search_posts_selectspec(null, qa_string_to_words($intitle), null, null, null, null, 0, false, $countqs)
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);
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}
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// Collect example tags if appropriate
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if ($doexampletags) {
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$tagweight = array();
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foreach ($relatedquestions as $question) {
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$tags = qa_tagstring_to_tags($question['tags']);
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foreach ($tags as $tag) {
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@$tagweight[$tag] += exp($question['score']);
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}
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}
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arsort($tagweight, SORT_NUMERIC);
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$exampletags = array();
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$minweight = exp(qa_match_to_min_score(qa_opt('match_example_tags')));
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$maxcount = qa_opt('page_size_ask_tags');
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foreach ($tagweight as $tag => $weight) {
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if ($weight < $minweight)
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break;
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$exampletags[] = $tag;
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if (count($exampletags) >= $maxcount)
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break;
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}
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} else {
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$exampletags = array();
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}
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// Output the response header and example tags
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echo "QA_AJAX_RESPONSE\n1\n";
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echo strtr(qa_html(implode(',', $exampletags)), "\r\n", ' ') . "\n";
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// Collect and output the list of related questions
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if ($doaskcheck) {
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$minscore = qa_match_to_min_score(qa_opt('match_ask_check_qs'));
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$maxcount = qa_opt('page_size_ask_check_qs');
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$relatedquestions = array_slice($relatedquestions, 0, $maxcount);
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$limitedquestions = array();
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foreach ($relatedquestions as $question) {
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if ($question['score'] < $minscore)
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break;
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$limitedquestions[] = $question;
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}
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$themeclass = qa_load_theme_class(qa_get_site_theme(), 'ajax-asktitle', null, null);
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$themeclass->initialize();
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$themeclass->q_ask_similar($limitedquestions, qa_lang_html('question/ask_same_q'));
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}
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