feat: group announcement

db/app_uoj233.sql

@@ -442,6 +442,7 @@ UNLOCK TABLES;
 CREATE TABLE `groups` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `title` text NOT NULL,
+  `announcement` text NOT NULL DEFAULT '',
   `is_hidden` tinyint(1) NOT NULL DEFAULT 0,
   PRIMARY KEY (`id`)
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;

web/app/controllers/group.php

@@ -176,6 +176,24 @@
 			DB::query("delete from assignments where list_id='{$list_id}' and group_id={$group_id}");
 		};
 		$remove_assignment_form->runAtServer();
+
+        $announcement_form = new UOJForm('announcement_form');
+        $announcement_form->addVTextArea('announcement_content', '公告', $group['announcement'], 
+			function ($x) {
+				return '';
+			},
+			null
+		);
+        $announcement_form->submit_button_config['align'] = 'compressed';
+		$announcement_form->submit_button_config['text'] = '更新公告';
+		$announcement_form->handle = function() {
+			global $group_id, $myUser;
+
+			$content = $_POST['announcement_content'];
+			$esc_content = DB::escape($content);
+			DB::query("update groups set announcement = '{$esc_content}' where id = {$group_id}");
+		};
+		$announcement_form->runAtServer();
 	}
 	?>
 
@@ -258,6 +276,11 @@
     <?php $group_editor->printHTML(); ?>
 </div>
 
+<h5>编辑小组公告</h5>
+<div>
+	<?php $announcement_form->printHTML(); ?>
+</div>
+
 <h5>添加用户到小组</h5>
 <?php $add_new_user_form->printHTML(); ?>
 

web/app/libs/uoj-query-lib.php

@@ -115,7 +115,7 @@ function queryGroup($id) {
 function queryUserInGroup($group_id, $username) {
 	return DB::selectFirst("select * from groups_users where username='$username' and group_id='$group_id'", MYSQLI_ASSOC);
 }
-function queryGroupOfUser($username) {
+function queryGroupsOfUser($username) {
 	return DB::selectAll("select b.title as title, b.id as id from groups_users a inner join groups b on a.group_id = b.id where a.username = '$username' and b.is_hidden = 0 order by id", MYSQLI_ASSOC);
 }
 function queryGroupmateCurrentAC($username) {

web/app/views/page-header.php

@@ -282,6 +282,41 @@
 			<?php endif ?>
 
 			<?php uojIncludeView($PageNav, array('REQUIRE_LIB' => $REQUIRE_LIB)) ?>
+
+			<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
+			<?php if (Auth::check()): ?>
+			<?php $groups = queryGroupsOfUser(Auth::id()); ?>
+			<?php if (count($groups)): ?>
+			<div class="card card-default mb-2" id="group-user-announcements">
+				<div class="card-header">
+					小组公告
+				</div>
+				<ul class="list-group list-group-flush">
+					<?php foreach ($groups as $group): ?>
+						<?php
+							$group_detail = DB::selectFirst("select * from groups where id = {$group['id']}");
+							$group_announcement = $group_detail['announcement'];
+						?>
+						<li class="list-group-item">
+							<a href="<?= HTML::url('/group/'.$group['id']) ?>">
+								<b><?= $group['title'] ?></b>
+							</a>
+							<?php if ($group_announcement): ?>
+							<div id="announcement-content-<?= $group['id'] ?>"></div>
+							<script>(function(){
+								$('#announcement-content-<?= $group['id'] ?>')
+									.html(DOMPurify.sanitize(decodeURIComponent("<?= urlencode($group_announcement) ?>"), <?= DOM_SANITIZE_CONFIG ?>)); 
+							})();</script>
+							<?php else: ?>
+							<div>（暂无公告）</div>
+							<?php endif ?>
+						</li>
+					<?php endforeach ?>
+				</ul>
+			</div>
+			<?php endif ?>
+			<?php endif ?>
+			<?php endif ?>
 			<?php endif ?>