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getpgdata: замена Flask на Node.js (Express + pg) приложение для доступа к PostgreSQL

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naeel
2026-08-18 18:14:33 +04:00
parent 5c5e11c5a8
commit b061dcd774
16 changed files with 1379 additions and 439 deletions
Download Patch File Download Diff File Expand all files Collapse all files
.gitignore
+2 -5
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@@ -1,6 +1,3 @@
__pycache__/
*.py[cod]
*.egg-info/
.venv/
venv/
node_modules/
npm-debug.log*
.env
README.md
+16 -17
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@@ -1,12 +1,12 @@
# getpgdata
Flask-приложение для доступа к PostgreSQL (managed k8s, internal-only).
Node.js приложение для доступа к PostgreSQL (managed k8s, internal-only).
Развёртывается на платформе Nubes как Python managed service (структура `site/app.py`).
Развёртывается на платформе Nubes как NodeJS managed service (аналогично ipwhitelist-app).
## Возможности
- Главная — состояние подключения и список таблиц (не системные схемы)
- `GET /` — состояние подключения и список таблиц (не системные схемы)
- `GET /table?schema=public&name=<table>` — просмотр содержимого таблицы с пагинацией
- `POST /query` — SQL-консоль (read-only, только `SELECT`)
- `GET /healthz` — liveness-проба для k8s
@@ -15,16 +15,15 @@ Flask-приложение для доступа к PostgreSQL (managed k8s, int
```
getpgdata/
├── requirements.txt
└── site/
├── app.py
├── static/
│ └── style.css
└── templates/
├── index.html
├── table.html
├── query.html
└── error.html
├── package.json
├── server.js # точка входа (Express)
├── public/
│ └── style.css
└── views/
├── index.ejs
├── table.ejs
├── query.ejs
└── error.ejs
```
## Переменные окружения (jsonEnv)
@@ -37,10 +36,10 @@ getpgdata/
"DB_USER": "super",
"DB_PASS": "<secret>",
"DB_SSLMODE": "disable",
"DB_CONNECT_TIMEOUT": "5",
"DB_CONNECT_TIMEOUT": "5000",
"QUERY_MAX_ROWS": "200",
"APP_ENV": "production",
"FLASK_DEBUG": "false"
"PORT": "5000"
}
```
@@ -50,8 +49,8 @@ getpgdata/
## Локальный запуск
```bash
pip install -r requirements.txt
DB_HOST=<host> DB_USER=<user> DB_PASS=<pass> python site/app.py
npm install
DB_HOST=<host> DB_USER=<user> DB_PASS=<pass> npm start
```
Если БД недоступна — приложение стартует и показывает ошибку на странице,
package-lock.json
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@@ -0,0 +1,966 @@
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package.json
+15
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@@ -0,0 +1,15 @@
{
"name": "getpgdata",
"version": "1.0.0",
"description": "Node.js приложение для доступа к PostgreSQL (managed k8s, internal-only)",
"main": "server.js",
"scripts": {
"start": "node server.js",
"check": "node -c server.js"
},
"dependencies": {
"ejs": "^3.1.10",
"express": "^4.19.2",
"pg": "^8.11.5"
}
}
site/static/style.css → public/style.css
View File
requirements.txt
-3
View File
@@ -1,3 +0,0 @@
Flask>=3.0
gunicorn>=21.2
psycopg2-binary>=2.9
server.js
+179
View File
@@ -0,0 +1,179 @@
/**
* getpgdata — Node.js приложение для доступа к PostgreSQL (managed k8s, internal-only).
*
* Точка входа для Nubes NodeJS managed service (аналогично ipwhitelist-app).
* Подключение к БД — через переменные окружения DB_HOST/DB_PORT/DB_NAME/DB_USER/DB_PASS/DB_SSLMODE.
*
* Функции:
* GET / — состояние подключения + список таблиц
* GET /table?schema=&name=&page= — содержимое таблицы с пагинацией
* POST /query — SQL-консоль (read-only, только SELECT)
* GET /healthz — liveness-проба для k8s
*/
const path = require('path');
const express = require('express');
const { Pool } = require('pg');
const app = express();
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));
const APP_ENV = process.env.APP_ENV || 'production';
const QUERY_MAX_ROWS = parseInt(process.env.QUERY_MAX_ROWS || '200', 10);
// ---------------------------------------------------------------------------
// Конфигурация подключения к PostgreSQL
// ---------------------------------------------------------------------------
function dbConfig() {
return {
host: process.env.DB_HOST || 'postgresqlk8s-master.60bdf3e3-5087-41ff-b760-fe6ea544a80e.svc.cluster.local',
port: parseInt(process.env.DB_PORT || '5432', 10),
database: process.env.DB_NAME || 'postgres',
user: process.env.DB_USER || 'super',
password: process.env.DB_PASS || '',
ssl: process.env.DB_SSLMODE === 'require' ? { rejectUnauthorized: false } : false,
connectionTimeoutMillis: parseInt(process.env.DB_CONNECT_TIMEOUT || '5000', 10),
};
}
// Пул создаётся при старте; если БД недоступна — приложение не падает,
// а отдаёт ошибку на страницах (важно для health-проб k8s).
const pool = new Pool(dbConfig());
// ---------------------------------------------------------------------------
// Middleware
// ---------------------------------------------------------------------------
app.use(express.urlencoded({ extended: true }));
app.use(express.json());
app.use('/public', express.static(path.join(__dirname, 'public')));
// ---------------------------------------------------------------------------
// Маршруты
// ---------------------------------------------------------------------------
// Liveness-проба
app.get('/healthz', async (req, res) => {
try {
await pool.query('SELECT 1');
res.status(200).json({ status: 'ok', db: 'connected' });
} catch (e) {
res.status(503).json({ status: 'degraded', db: 'unreachable', error: e.message });
}
});
// Главная: состояние подключения + список таблиц
app.get('/', async (req, res) => {
let tables = null;
let error = null;
try {
const r = await pool.query(
`SELECT schemaname, tablename
FROM pg_tables
WHERE schemaname NOT IN ('pg_catalog', 'information_schema')
ORDER BY schemaname, tablename`
);
tables = r.rows;
} catch (e) {
error = e.message;
}
res.render('index', {
cfg: dbConfig(),
tables,
error,
env: APP_ENV,
});
});
// Просмотр таблицы с пагинацией
app.get('/table', async (req, res) => {
const schema = (req.query.schema || 'public').replace(/[^a-zA-Z0-9_]/g, '');
const name = (req.query.name || '').replace(/[^a-zA-Z0-9_]/g, '');
const page = Math.max(parseInt(req.query.page || '1', 10) || 1, 1);
const perPage = Math.min(Math.max(parseInt(req.query.per_page || '50', 10) || 50, 1), 500);
if (!name) return res.redirect('/');
const fullName = `${schema}.${name}`;
let rows = null;
let columns = null;
let count = null;
let error = null;
try {
// Проверяем существование таблицы
const chk = await pool.query('SELECT to_regclass($1) AS reg', [fullName]);
if (!chk.rows[0].reg) {
return res.status(404).render('error', { code: 404, message: `Таблица ${fullName} не найдена` });
}
const cnt = await pool.query(`SELECT COUNT(*) AS n FROM ${fullName}`);
count = parseInt(cnt.rows[0].n, 10);
const offset = (page - 1) * perPage;
const q = await pool.query(`SELECT * FROM ${fullName} ORDER BY 1 LIMIT $1 OFFSET $2`, [perPage, offset]);
rows = q.rows;
columns = q.fields.map((f) => f.name);
} catch (e) {
error = e.message;
}
res.render('table', { schema, name, columns, rows, count, page, perPage, error });
});
// SQL-консоль (read-only, только SELECT)
app.get('/query', (req, res) => {
res.render('query', { sql: '', columns: null, rows: null, error: null, elapsed: null });
});
app.post('/query', async (req, res) => {
let sql = (req.body.sql || '').trim().replace(/;\s*$/, '');
let columns = null;
let rows = null;
let error = null;
let elapsed = null;
if (sql) {
const startsWithSelect = /^\s*select\b/i.test(sql);
if (!startsWithSelect) {
error = 'Разрешены только SELECT-запросы (read-only режим)';
} else {
const start = Date.now();
try {
const q = await pool.query(sql);
if (q.fields) {
columns = q.fields.map((f) => f.name);
rows = q.rows.slice(0, QUERY_MAX_ROWS);
}
} catch (e) {
error = `Ошибка базы данных: ${e.message}`;
}
elapsed = ((Date.now() - start) / 1000).toFixed(3);
}
}
res.render('query', { sql, columns, rows, error, elapsed, QUERY_MAX_ROWS });
});
// Обработка 404
app.use((req, res) => {
res.status(404).render('error', { code: 404, message: 'Страница не найдена' });
});
// Обработка ошибок
app.use((err, req, res, next) => {
res.status(500).render('error', { code: 500, message: err.message || 'Внутренняя ошибка' });
});
// ---------------------------------------------------------------------------
// Запуск
// ---------------------------------------------------------------------------
const PORT = parseInt(process.env.PORT || '5000', 10);
app.listen(PORT, '0.0.0.0', () => {
console.log(`getpgdata listening on port ${PORT} (env=${APP_ENV})`);
});
module.exports = app;
site/app.py
-211
View File
@@ -1,211 +0,0 @@
"""
Flask-приложение для доступа к PostgreSQL (managed k8s, internal-only).
Структура соответствует требованиям платформы Nubes:
repo/
└── site/
├── app.py
├── static/
└── templates/
Подключение к БД — через переменные окружения:
DB_HOST, DB_PORT, DB_NAME, DB_USER, DB_PASS, DB_SSLMODE
Если БД недоступна — приложение стартует и показывает ошибку на странице,
а не падает (важно для k8s health-проб и диагностики).
Запуск в dev:
python site/app.py
"""
import os
from flask import Flask, abort, redirect, render_template, request, url_for
import psycopg2
import psycopg2.extras
app = Flask(__name__, template_folder="templates", static_folder="static")
def db_config():
"""Возвращает параметры подключения к PostgreSQL из окружения."""
return {
"host": os.getenv("DB_HOST", "postgresqlk8s-master.60bdf3e3-5087-41ff-b760-fe6ea544a80e.svc.cluster.local"),
"port": int(os.getenv("DB_PORT", "5432")),
"dbname": os.getenv("DB_NAME", "postgres"),
"user": os.getenv("DB_USER", "super"),
"password": os.getenv("DB_PASS", ""),
"sslmode": os.getenv("DB_SSLMODE", "disable"),
"connect_timeout": int(os.getenv("DB_CONNECT_TIMEOUT", "5")),
}
def connect():
"""Открывает соединение с PostgreSQL."""
try:
return psycopg2.connect(**db_config())
except psycopg2.Error as exc:
raise ConnectionError(f"Нет соединения с PostgreSQL: {exc}") from exc
@app.route("/healthz")
def healthz():
"""Liveness-проба для k8s."""
try:
with connect() as conn:
with conn.cursor() as cur:
cur.execute("SELECT 1")
cur.fetchone()
return {"status": "ok", "db": "connected"}, 200
except Exception:
return {"status": "degraded", "db": "unreachable"}, 503
@app.route("/")
def index():
"""Главная: состояние подключения + список таблиц."""
cfg = db_config()
show_password = os.getenv("SHOW_DB_PASSWORD", "").lower() in ("1", "true", "yes")
tables = None
error = None
try:
with connect() as conn:
with conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor) as cur:
cur.execute(
"""
SELECT schemaname, tablename
FROM pg_tables
WHERE schemaname NOT IN ('pg_catalog', 'information_schema')
ORDER BY schemaname, tablename
"""
)
tables = cur.fetchall()
except ConnectionError as exc:
error = str(exc)
except psycopg2.Error as exc:
error = f"Ошибка базы данных: {exc}"
if show_password:
cfg["password"] = "***"
return render_template(
"index.html",
cfg=cfg,
tables=tables,
error=error,
env=os.getenv("APP_ENV", "production"),
)
@app.route("/table")
def table():
"""Просмотр содержимого таблицы с пагинацией."""
schema = request.args.get("schema", "public")
name = request.args.get("name", "")
page = max(request.args.get("page", 1, type=int), 1)
per_page = min(max(request.args.get("per_page", 50, type=int), 1), 500)
if not name:
return redirect(url_for("index"))
full_name = f'"{schema}"."{name}"'
rows = None
columns = None
count = None
error = None
try:
with connect() as conn:
with conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor) as cur:
# Проверяем, что таблица существует
cur.execute(
"""
SELECT to_regclass(%s) AS reg
""",
(full_name,),
)
if cur.fetchone()["reg"] is None:
abort(404, f"Таблица {full_name} не найдена")
cur.execute(f'SELECT COUNT(*) AS n FROM {full_name}')
count = cur.fetchone()["n"]
offset = (page - 1) * per_page
cur.execute(
f'SELECT * FROM {full_name} ORDER BY 1 LIMIT %s OFFSET %s',
(per_page, offset),
)
rows = cur.fetchall()
if rows:
columns = list(rows[0].keys())
except ConnectionError as exc:
error = str(exc)
except psycopg2.Error as exc:
error = f"Ошибка базы данных: {exc}"
return render_template(
"table.html",
schema=schema,
name=name,
columns=columns,
rows=rows,
count=count,
page=page,
per_page=per_page,
error=error,
)
@app.route("/query", methods=["GET", "POST"])
def query():
"""Простейшая консоль SQL (read-only SELECT)."""
sql = request.form.get("sql", "") if request.method == "POST" else request.args.get("sql", "")
columns = None
rows = None
error = None
elapsed = None
if sql:
sql_clean = sql.strip().rstrip(";")
if not sql_clean.lower().lstrip().startswith("select"):
error = "Разрешены только SELECT-запросы (read-only режим)"
else:
import time
start = time.time()
try:
with connect() as conn:
with conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor) as cur:
cur.execute(sql_clean)
if cur.description:
max_rows = int(os.getenv("QUERY_MAX_ROWS", "200"))
rows = cur.fetchmany(max_rows)
columns = list(rows[0].keys()) if rows else [d.name for d in cur.description]
except ConnectionError as exc:
error = str(exc)
except psycopg2.Error as exc:
error = f"Ошибка базы данных: {exc}"
elapsed = round(time.time() - start, 3)
return render_template(
"query.html",
sql=sql,
columns=columns,
rows=rows,
error=error,
elapsed=elapsed,
QUERY_MAX_ROWS=int(os.getenv("QUERY_MAX_ROWS", "200")),
)
@app.errorhandler(404)
def not_found(exc):
return render_template("error.html", code=404, message=exc.description or "Страница не найдена"), 404
if __name__ == "__main__":
app.run(debug=os.getenv("FLASK_DEBUG", "true").lower() in ("1", "true", "yes"),
host="0.0.0.0",
port=int(os.getenv("PORT", "5000")))
site/templates/error.html
-16
View File
@@ -1,16 +0,0 @@
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Ошибка {{ code }}</title>
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
</head>
<body>
<header><h1>Ошибка {{ code }}</h1></header>
<main>
<p class="error">{{ message }}</p>
<p><a href="{{ url_for('index') }}">← На главную</a></p>
</main>
</body>
</html>
site/templates/index.html
-62
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@@ -1,62 +0,0 @@
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>PostgreSQL Access</title>
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
</head>
<body>
<header>
<h1>PostgreSQL Access</h1>
<nav>
<a href="{{ url_for('index') }}">Главная</a>
<a href="{{ url_for('query') }}">SQL-консоль</a>
</nav>
{% if env == 'test' %}<span class="badge test">TEST</span>{% endif %}
</header>
<main>
<section class="card">
<h2>Подключение</h2>
<table class="kv">
<tr><th>Host</th><td>{{ cfg.host }}</td></tr>
<tr><th>Port</th><td>{{ cfg.port }}</td></tr>
<tr><th>Database</th><td>{{ cfg.dbname }}</td></tr>
<tr><th>User</th><td>{{ cfg.user }}</td></tr>
</table>
{% if error %}
<p class="error">{{ error }}</p>
{% else %}
<p class="ok">✓ Подключение активно</p>
{% endif %}
</section>
{% if tables is not none and not error %}
<section class="card">
<h2>Таблицы ({{ tables|length }})</h2>
{% if tables %}
<table>
<thead>
<tr><th>Схема</th><th>Таблица</th><th></th></tr>
</thead>
<tbody>
{% for t in tables %}
<tr>
<td>{{ t.schemaname }}</td>
<td>{{ t.tablename }}</td>
<td>
<a href="{{ url_for('table', schema=t.schemaname, name=t.tablename) }}">открыть</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
{% else %}
<p>Доступных таблиц нет.</p>
{% endif %}
</section>
{% endif %}
</main>
</body>
</html>
site/templates/query.html
-63
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@@ -1,63 +0,0 @@
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>SQL-консоль</title>
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
</head>
<body>
<header>
<h1>SQL-консоль (read-only)</h1>
<nav>
<a href="{{ url_for('index') }}">Главная</a>
<a href="{{ url_for('query') }}">SQL-консоль</a>
</nav>
</header>
<main>
<section class="card">
<form method="post" action="{{ url_for('query') }}">
<textarea name="sql" rows="8" placeholder="SELECT * FROM public.contracts LIMIT 100;">{{ sql }}</textarea>
<button type="submit">Выполнить</button>
<p class="hint">Только SELECT. Обрезается до {{ (QUERY_MAX_ROWS or 200)|int }} строк.</p>
</form>
</section>
{% if error %}
<p class="error">{{ error }}</p>
{% endif %}
{% if columns is not none and not error %}
<section class="card">
<h2>Результат {% if elapsed is not none %}({{ elapsed }} c){% endif %}</h2>
{% if columns %}
<div class="table-wrap">
<table>
<thead>
<tr>{% for c in columns %}<th>{{ c }}</th>{% endfor %}</tr>
</thead>
<tbody>
{% for r in rows %}
<tr>
{% for c in columns %}
<td>
{% if r[c] is none %}<span class="null">NULL</span>
{% elif r[c] is boolean %}{{ 'true' if r[c] else 'false' }}
{% else %}{{ r[c] }}{% endif %}
</td>
{% endfor %}
</tr>
{% endfor %}
</tbody>
</table>
</div>
<p class="hint">Строк: {{ rows|length }}</p>
{% else %}
<p>Запрос выполнен без набора строк.</p>
{% endif %}
</section>
{% endif %}
</main>
</body>
</html>
site/templates/table.html
-62
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@@ -1,62 +0,0 @@
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Таблица — {{ schema }}.{{ name }}</title>
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
</head>
<body>
<header>
<h1>Таблица: {{ schema }}.{{ name }}</h1>
<nav>
<a href="{{ url_for('index') }}">Главная</a>
<a href="{{ url_for('query') }}">SQL-консоль</a>
</nav>
</header>
<main>
{% if error %}
<p class="error">{{ error }}</p>
{% else %}
<p>Строк всего: <strong>{{ count }}</strong>. Показано: {{ rows|length }} (стр. {{ page }}).</p>
{% if columns %}
<div class="table-wrap">
<table>
<thead>
<tr>
{% for c in columns %}<th>{{ c }}</th>{% endfor %}
</tr>
</thead>
<tbody>
{% for r in rows %}
<tr>
{% for c in columns %}
<td>
{% if r[c] is none %}<span class="null">NULL</span>
{% elif r[c] is boolean %}{{ 'true' if r[c] else 'false' }}
{% else %}{{ r[c] }}{% endif %}
</td>
{% endfor %}
</tr>
{% endfor %}
</tbody>
</table>
</div>
<nav class="pager">
{% if page > 1 %}
<a href="{{ url_for('table', schema=schema, name=name, page=page-1, per_page=per_page) }}">← Назад</a>
{% endif %}
{% if page * per_page < count %}
<a href="{{ url_for('table', schema=schema, name=name, page=page+1, per_page=per_page) }}">Вперёд →</a>
{% endif %}
</nav>
{% else %}
<p>Таблица пуста.</p>
{% endif %}
{% endif %}
</main>
</body>
</html>
views/error.ejs
+16
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@@ -0,0 +1,16 @@
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Ошибка <%= code %></title>
<link rel="stylesheet" href="/public/style.css">
</head>
<body>
<header><h1>Ошибка <%= code %></h1></header>
<main>
<p class="error"><%= message %></p>
<p><a href="/">← На главную</a></p>
</main>
</body>
</html>
views/index.ejs
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<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>PostgreSQL Access</title>
<link rel="stylesheet" href="/public/style.css">
</head>
<body>
<header>
<h1>PostgreSQL Access</h1>
<nav>
<a href="/">Главная</a>
<a href="/query">SQL-консоль</a>
</nav>
<% if (env === 'test') { %><span class="badge test">TEST</span><% } %>
</header>
<main>
<section class="card">
<h2>Подключение</h2>
<table class="kv">
<tr><th>Host</th><td><%= cfg.host %></td></tr>
<tr><th>Port</th><td><%= cfg.port %></td></tr>
<tr><th>Database</th><td><%= cfg.database %></td></tr>
<tr><th>User</th><td><%= cfg.user %></td></tr>
</table>
<% if (error) { %>
<p class="error"><%= error %></p>
<% } else { %>
<p class="ok">✓ Подключение активно</p>
<% } %>
</section>
<% if (tables && !error) { %>
<section class="card">
<h2>Таблицы (<%= tables.length %>)</h2>
<% if (tables.length) { %>
<table>
<thead>
<tr><th>Схема</th><th>Таблица</th><th></th></tr>
</thead>
<tbody>
<% tables.forEach(function (t) { %>
<tr>
<td><%= t.schemaname %></td>
<td><%= t.tablename %></td>
<td><a href="/table?schema=<%= t.schemaname %>&name=<%= t.tablename %>">открыть</a></td>
</tr>
<% }); %>
</tbody>
</table>
<% } else { %>
<p>Доступных таблиц нет.</p>
<% } %>
</section>
<% } %>
</main>
</body>
</html>
views/query.ejs
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<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>SQL-консоль</title>
<link rel="stylesheet" href="/public/style.css">
</head>
<body>
<header>
<h1>SQL-консоль (read-only)</h1>
<nav>
<a href="/">Главная</a>
<a href="/query">SQL-консоль</a>
</nav>
</header>
<main>
<section class="card">
<form method="post" action="/query">
<textarea name="sql" rows="8" placeholder="SELECT * FROM public.contracts LIMIT 100;"><%= sql %></textarea>
<button type="submit">Выполнить</button>
<p class="hint">Только SELECT. Обрезается до <%= QUERY_MAX_ROWS || 200 %> строк.</p>
</form>
</section>
<% if (error) { %>
<p class="error"><%= error %></p>
<% } %>
<% if (columns && !error) { %>
<section class="card">
<h2>Результат <% if (elapsed !== null) { %>(<%= elapsed %> c)<% } %></h2>
<% if (columns.length) { %>
<div class="table-wrap">
<table>
<thead>
<tr><% columns.forEach(function (c) { %><th><%= c %></th><% }); %></tr>
</thead>
<tbody>
<% rows.forEach(function (r) { %>
<tr>
<% columns.forEach(function (c) { %>
<td>
<% if (r[c] === null) { %><span class="null">NULL</span>
<% } else if (typeof r[c] === 'boolean') { %><%= r[c] ? 'true' : 'false' %>
<% } else if (r[c] instanceof Date) { %><%= r[c].toISOString() %>
<% } else { %><%= r[c] %><% } %>
</td>
<% }); %>
</tr>
<% }); %>
</tbody>
</table>
</div>
<p class="hint">Строк: <%= rows.length %></p>
<% } else { %>
<p>Запрос выполнен без набора строк.</p>
<% } %>
</section>
<% } %>
</main>
</body>
</html>
views/table.ejs
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<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Таблица — <%= schema %>.<%= name %></title>
<link rel="stylesheet" href="/public/style.css">
</head>
<body>
<header>
<h1>Таблица: <%= schema %>.<%= name %></h1>
<nav>
<a href="/">Главная</a>
<a href="/query">SQL-консоль</a>
</nav>
</header>
<main>
<% if (error) { %>
<p class="error"><%= error %></p>
<% } else { %>
<p>Строк всего: <strong><%= count %></strong>. Показано: <%= rows.length %> (стр. <%= page %>).</p>
<% if (columns && columns.length) { %>
<div class="table-wrap">
<table>
<thead>
<tr><% columns.forEach(function (c) { %><th><%= c %></th><% }); %></tr>
</thead>
<tbody>
<% rows.forEach(function (r) { %>
<tr>
<% columns.forEach(function (c) { %>
<td>
<% if (r[c] === null) { %><span class="null">NULL</span>
<% } else if (typeof r[c] === 'boolean') { %><%= r[c] ? 'true' : 'false' %>
<% } else if (r[c] instanceof Date) { %><%= r[c].toISOString() %>
<% } else { %><%= r[c] %><% } %>
</td>
<% }); %>
</tr>
<% }); %>
</tbody>
</table>
</div>
<nav class="pager">
<% if (page > 1) { %>
<a href="/table?schema=<%= schema %>&name=<%= name %>&page=<%= page - 1 %>&per_page=<%= perPage %>">← Назад</a>
<% } %>
<% if (page * perPage < count) { %>
<a href="/table?schema=<%= schema %>&name=<%= name %>&page=<%= page + 1 %>&per_page=<%= perPage %>">Вперёд →</a>
<% } %>
</nav>
<% } else { %>
<p>Таблица пуста.</p>
<% } %>
<% } %>
</main>
</body>
</html>