成绩查询

2026-06-21 14:03:06 +08:00
parent 1111372dc9
commit b97a2faaff
4 changed files with 585 additions and 0 deletions
@@ -0,0 +1,123 @@
+-- PostgreSQL / Supabase schema for the exam result query module.
+-- Each exam is independent. Scores are stored under one exam only and do
+-- not affect any other exam.
+
+create extension if not exists pgcrypto;
+
+create table if not exists public.exam_exams (
+    id uuid primary key default gen_random_uuid(),
+    exam_code text not null unique,
+    exam_name text not null,
+    exam_date date,
+    is_published boolean not null default true,
+    created_at timestamptz not null default now(),
+    updated_at timestamptz not null default now()
+);
+
+create table if not exists public.exam_results (
+    id uuid primary key default gen_random_uuid(),
+    exam_id uuid not null references public.exam_exams(id) on delete cascade,
+    student_name text not null,
+    admission_no text not null,
+    class_name text,
+    remark text,
+    created_at timestamptz not null default now(),
+    updated_at timestamptz not null default now(),
+    constraint exam_results_one_candidate_per_exam unique (exam_id, admission_no, student_name)
+);
+
+create table if not exists public.exam_score_items (
+    id uuid primary key default gen_random_uuid(),
+    result_id uuid not null references public.exam_results(id) on delete cascade,
+    item_name text not null,
+    score numeric(10, 2) not null,
+    full_score numeric(10, 2),
+    sort_order integer not null default 0,
+    created_at timestamptz not null default now()
+);
+
+create index if not exists exam_results_lookup_idx
+    on public.exam_results (exam_id, student_name, admission_no);
+
+create unique index if not exists exam_score_items_unique_item_idx
+    on public.exam_score_items (result_id, item_name);
+
+create index if not exists exam_score_items_result_idx
+    on public.exam_score_items (result_id, sort_order);
+
+grant select on public.exam_exams to anon, authenticated;
+grant select on public.exam_results to anon, authenticated;
+grant select on public.exam_score_items to anon, authenticated;
+
+alter table public.exam_exams enable row level security;
+alter table public.exam_results enable row level security;
+alter table public.exam_score_items enable row level security;
+
+drop policy if exists "Public can read published exams" on public.exam_exams;
+create policy "Public can read published exams"
+    on public.exam_exams
+    for select
+    to anon, authenticated
+    using (is_published = true);
+
+drop policy if exists "Public can read published exam results" on public.exam_results;
+create policy "Public can read published exam results"
+    on public.exam_results
+    for select
+    to anon, authenticated
+    using (
+        exists (
+            select 1
+            from public.exam_exams
+            where public.exam_exams.id = exam_results.exam_id
+              and public.exam_exams.is_published = true
+        )
+    );
+
+drop policy if exists "Public can read published score items" on public.exam_score_items;
+create policy "Public can read published score items"
+    on public.exam_score_items
+    for select
+    to anon, authenticated
+    using (
+        exists (
+            select 1
+            from public.exam_results
+            join public.exam_exams on public.exam_exams.id = public.exam_results.exam_id
+            where public.exam_results.id = exam_score_items.result_id
+              and public.exam_exams.is_published = true
+        )
+    );
+
+insert into public.exam_exams (exam_code, exam_name, exam_date)
+values
+    ('2026-spring-midterm', '2026 年春季期中考试', '2026-04-18'),
+    ('2026-spring-monthly-01', '2026 年春季第一次月考', '2026-03-12')
+on conflict (exam_code) do nothing;
+
+with target_exam as (
+    select id from public.exam_exams where exam_code = '2026-spring-midterm'
+),
+inserted_result as (
+    insert into public.exam_results (exam_id, student_name, admission_no, class_name, remark)
+    select id, '张三', 'EX20260001', '高一 1 班', '本场考试独立计分，实验规范扣分仅影响本场期中考试。'
+    from target_exam
+    on conflict (exam_id, admission_no, student_name) do update
+        set class_name = excluded.class_name,
+            remark = excluded.remark,
+            updated_at = now()
+    returning id
+)
+insert into public.exam_score_items (result_id, item_name, score, full_score, sort_order)
+select id, item_name, score, full_score, sort_order
+from inserted_result,
+(values
+    ('语文', 108, 150, 10),
+    ('数学', 126, 150, 20),
+    ('英语', 119, 150, 30),
+    ('实验规范扣分', -2, null, 40)
+) as item_rows(item_name, score, full_score, sort_order)
+on conflict (result_id, item_name) do update
+    set score = excluded.score,
+        full_score = excluded.full_score,
+        sort_order = excluded.sort_order;