mirror of
https://github.com/renbaoshuo/S2OJ.git
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0ec962b4af
In order to support PHP7, change the way to operate database. PHP7 removed the mysql extension, so the old way to operate database is not usable. This commit use a new way to operate database. BREAKING CHANGE: the way to operate database has changed.
64 lines
1.8 KiB
PHP
64 lines
1.8 KiB
PHP
<?php
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function validateZan() {
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if (!validateUInt($_POST['id']))
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return false;
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if (!validateInt($_POST['delta']))
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return false;
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if ($_POST['delta'] != 1 && $_POST['delta'] != -1)
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return false;
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if ($_POST['type'] != 'B' && $_POST['type'] != 'BC' && $_POST['type'] != 'P' && $_POST['type'] != 'C')
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return false;
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return true;
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}
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if (!validateZan()) {
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die('<div class="text-danger">failed</div>');
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}
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if ($myUser == null) {
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die('<div class="text-danger">please <a href="'.HTML::url('/login').'">log in</a></div>');
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}
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$id = $_POST['id'];
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$delta = $_POST['delta'];
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$type = $_POST['type'];
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switch ($type) {
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case 'B':
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$table_name = 'blogs';
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break;
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case 'BC':
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$table_name = 'blogs_comments';
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break;
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case 'P':
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$table_name = 'problems';
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break;
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case 'C':
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$table_name = 'contests';
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break;
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}
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$cur = queryZanVal($id, $type, $myUser);
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if ($cur != $delta) {
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$row = DB::selectFirst("select zan from $table_name where id = $id");
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if ($row == null) {
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die('<div class="text-danger">failed</div>');
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}
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$cur += $delta;
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if ($cur == 0) {
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DB::query("delete from click_zans where username = '{$myUser['username']}' and type = '$type' and target_id = $id");
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} else if ($cur != $delta) {
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DB::query("update click_zans set val = '$cur' where username = '{$myUser['username']}' and type = '$type' and target_id = $id");
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} else {
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DB::query("insert into click_zans (username, type, target_id, val) values ('{$myUser['username']}', '$type', $id, $cur)");
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}
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$cnt = $row['zan'] + $delta;
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DB::query("update $table_name set zan = $cnt where id = $id");
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} else {
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$row = DB::selectFirst("select zan from $table_name where id = $id");
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if ($row == null) {
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die('<div class="text-danger">failed</div>');
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}
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$cnt = $row['zan'];
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}
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?>
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<?= getClickZanBlock($type, $id, $cnt, $cur) ?>
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