修复加减分失败但计入记录和添加导出功能

frontend/admin/conduct.php

@@ -35,6 +35,9 @@ include __DIR__ . '/../includes/header.php';
         <div class="action-bar">
             <div class="action-buttons">
                 <button class="btn btn-primary" onclick="showBatchPointsModal()">批量加减分</button>
+                <?php if ($role === '班主任'): ?>
+                <button class="btn btn-secondary" onclick="exportConductRecords()">导出记录</button>
+                <?php endif; ?>
             </div>
         </div>
         
@@ -93,6 +96,55 @@ function showSinglePointsModal(studentId, studentName) {
     document.getElementById('batchPointsModal').style.display = 'flex';
 }
 
+// 导出操行分记录
+async function exportConductRecords() {
+    const startDate = prompt('请输入开始日期（格式：YYYY-MM-DD，留空则不限）:', '');
+    if (startDate === null) return;
+    const endDate = prompt('请输入结束日期（格式：YYYY-MM-DD，留空则不限）:', '');
+    if (endDate === null) return;
+    
+    showToast('正在导出...', 'info');
+    
+    try {
+        const params = { page: 1, page_size: 10000 };
+        if (startDate) params.start_date = startDate;
+        if (endDate) params.end_date = endDate;
+        
+        const res = await apiGet('/api/admin/conduct/history', params);
+        if (res && res.success && res.data.records) {
+            const records = res.data.records;
+            if (records.length === 0) {
+                showToast('没有找到记录', 'warning');
+                return;
+            }
+            
+            // 构建CSV内容
+            let csv = '\uFEFF'; // BOM for UTF-8
+            csv += '时间,学号,姓名,分数变动,原因,操作人\n';
+            records.forEach(r => {
+                csv += `${r.created_at || ''},${r.student_no || ''},${r.student_name || ''},${r.points_change > 0 ? '+' : ''}${r.points_change},${(r.reason || '').replace(/,/g, ';')},${r.recorder_name || ''}\n`;
+            });
+            
+            // 下载文件
+            const blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
+            const url = URL.createObjectURL(blob);
+            const link = document.createElement('a');
+            link.href = url;
+            link.download = `操行分记录_${new Date().toISOString().slice(0,10)}.csv`;
+            document.body.appendChild(link);
+            link.click();
+            document.body.removeChild(link);
+            URL.revokeObjectURL(url);
+            
+            showToast(`导出成功，共${records.length}条记录`);
+        } else {
+            showToast('导出失败：' + (res?.message || '未知错误'), 'error');
+        }
+    } catch (err) {
+        showToast('导出失败：' + err.message, 'error');
+    }
+}
+
 loadStudents();
 </script>
 <script src="/assets/js/admin.js"></script>