优化考勤记录

frontend/admin/attendance.php

@@ -41,9 +41,9 @@ include __DIR__ . '/../includes/header.php';
             <div class="form-group" style="margin:0">
                 <label>时段</label>
                 <select id="attendanceSlot">
-                    <option value="morning">早 8:15</option>
-                    <option value="afternoon">下午 14:00</option>
-                    <option value="evening">晚 19:30</option>
+                    <option value="morning">早上 7:15</option>
+                    <option value="afternoon">中午 14:00</option>
+                    <option value="evening">晚修 19:30</option>
                 </select>
             </div>
             <div class="status-group">
@@ -124,7 +124,7 @@ function renderStudentGrid() {
     const currentSlot = document.getElementById('attendanceSlot').value;
     let html = '';
     studentsData.forEach(student => {
-        const hasRecord = existingRecords.some(r => r.student_id === student.student_id && (!r.slot || r.slot === currentSlot));
+        const hasRecord = existingRecords.some(r => r.student_id === student.student_id && r.slot === currentSlot);
         html += `<div class="student-cell${hasRecord ? ' has-record' : ''}"
                      data-id="${student.student_id}"
                      data-name="${escapeHtml(student.name)}"
@@ -178,17 +178,19 @@ async function submitAttendance() {
     }
 
     const date = document.getElementById('attendanceDate').value;
+    const slot = document.getElementById('attendanceSlot').value;
     const reason = document.getElementById('attendanceReason').value;
     const customDeduction = document.getElementById('customDeduction').value;
     const customDeductionValue = customDeduction ? parseInt(customDeduction) : null;
 
-    // 批量提交（不再检查已有记录，允许同一学生同一天多次考勤）
+    // 批量提交
     const promises = [];
     selectedCells.forEach(cell => {
         const studentId = parseInt(cell.dataset.id);
         const payload = {
             student_id: studentId,
             date: date,
+            slot: slot,
             status: currentStatus,
             reason: reason,
             apply_deduction: true