-- ========================================
-- 奖学金名额分配删除问题诊断脚本
-- 创建时间: 2025-01-28
-- 说明: 用于排查无法删除的名额分配记录
-- ========================================

USE hzdyjs_xg;

-- 1. 查看所有名额分配记录的状态
SELECT
    id,
    batch_id,
    scholarship_type_id,
    allocation_level,
    target_dept_id,
    total_quota,
    used_quota,
    reserved_quota,
    available_quota,
    is_adjustable,
    is_locked,
    status,
    deleted,
    create_time,
    update_time
FROM jcbt_scholarship_quota
WHERE deleted = 0
ORDER BY create_time DESC;

-- 2. 查找可能有问题的记录（已使用名额大于0或已锁定）
SELECT
    '已使用名额大于0' as issue_type,
    id,
    batch_id,
    scholarship_type_id,
    total_quota,
    used_quota,
    reserved_quota,
    available_quota,
    is_locked,
    status
FROM jcbt_scholarship_quota
WHERE deleted = 0 AND used_quota > 0

UNION ALL

SELECT
    '已被锁定' as issue_type,
    id,
    batch_id,
    scholarship_type_id,
    total_quota,
    used_quota,
    reserved_quota,
    available_quota,
    is_locked,
    status
FROM jcbt_scholarship_quota
WHERE deleted = 0 AND is_locked = 1

UNION ALL

SELECT
    '状态异常' as issue_type,
    id,
    batch_id,
    scholarship_type_id,
    total_quota,
    used_quota,
    reserved_quota,
    available_quota,
    is_locked,
    status
FROM jcbt_scholarship_quota
WHERE deleted = 0 AND status != 'ACTIVE';

-- 3. 检查是否存在外键约束或关联数据
-- 检查是否有申请记录引用了这些名额
SELECT
    q.id as quota_id,
    q.batch_id,
    q.scholarship_type_id,
    q.used_quota,
    q.is_locked,
    COUNT(DISTINCT a.id) as application_count
FROM jcbt_scholarship_quota q
LEFT JOIN jcbt_scholarship_application a ON a.batch_id = q.batch_id
    AND a.scholarship_type_id = q.scholarship_type_id
WHERE q.deleted = 0
GROUP BY q.id, q.batch_id, q.scholarship_type_id, q.used_quota, q.is_locked
HAVING application_count > 0 OR q.used_quota > 0 OR q.is_locked = 1;

-- 4. 检查是否有下级名额分配
SELECT
    parent.id as parent_quota_id,
    parent.allocation_level as parent_level,
    parent.used_quota as parent_used_quota,
    parent.is_locked as parent_is_locked,
    COUNT(child.id) as child_count
FROM jcbt_scholarship_quota parent
LEFT JOIN jcbt_scholarship_quota child ON child.parent_quota_id = parent.id AND child.deleted = 0
WHERE parent.deleted = 0
GROUP BY parent.id, parent.allocation_level, parent.used_quota, parent.is_locked
HAVING child_count > 0;

-- 5. 详细查看有问题的记录（根据实际情况调整ID）
-- 请替换下面的ID为实际无法删除的记录ID
-- SELECT * FROM jcbt_scholarship_quota WHERE id = 替换为实际ID;

-- 6. 查看相关批次信息
SELECT
    b.id as batch_id,
    b.batch_name,
    b.batch_code,
    b.status as batch_status,
    b.start_time,
    b.end_time,
    COUNT(q.id) as quota_count
FROM jcbt_scholarship_batch b
LEFT JOIN jcbt_scholarship_quota q ON q.batch_id = b.id AND q.deleted = 0
WHERE b.deleted = 0
GROUP BY b.id, b.batch_name, b.batch_code, b.status, b.start_time, b.end_time;

-- 7. 查看奖学金类型信息
SELECT
    st.id as type_id,
    st.type_name,
    st.type_code,
    st.status as type_status,
    COUNT(q.id) as quota_count
FROM jcbt_scholarship_type st
LEFT JOIN jcbt_scholarship_quota q ON q.scholarship_type_id = st.id AND q.deleted = 0
WHERE st.deleted = 0
GROUP BY st.id, st.type_name, st.type_code, st.status;