fix: move code to site/ directory as required by Flask platform
This commit is contained in:
+117
@@ -0,0 +1,117 @@
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"""
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app.py — Flask CRUD-интерфейс для PostgreSQL.
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Переменные окружения (из json_env):
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- PGHOST, PGPORT, PGDATABASE, PGUSER, PGPASSWORD — подключение к БД
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- TABLE_NAME — имя таблицы (по умолчанию crud_items)
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При старте: CREATE TABLE IF NOT EXISTS (БЕЗ DROP).
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"""
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import os
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import psycopg2
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import psycopg2.extras
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from flask import Flask, render_template, request, redirect, url_for, g
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VERSION = "1.0.0"
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TABLE_NAME = os.environ.get("TABLE_NAME", "crud_items")
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app = Flask(__name__)
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def get_db():
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"""Ленивое подключение к PostgreSQL. Один коннект на запрос."""
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if "db" not in g:
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g.db = psycopg2.connect(
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host=os.environ.get("PGHOST", "127.0.0.1"),
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port=os.environ.get("PGPORT", "5432"),
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dbname=os.environ.get("PGDATABASE", "postgres"),
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user=os.environ.get("PGUSER", "postgres"),
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password=os.environ.get("PGPASSWORD", ""),
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)
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g.db.autocommit = True
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return g.db
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def init_db():
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"""CREATE TABLE IF NOT EXISTS — никогда не дропает существующую таблицу."""
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db = get_db()
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cur = db.cursor()
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cur.execute(
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f"""
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CREATE TABLE IF NOT EXISTS {TABLE_NAME} (
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id SERIAL PRIMARY KEY,
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value TEXT NOT NULL DEFAULT ''
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)
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"""
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)
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cur.close()
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@app.teardown_appcontext
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def close_db(exc):
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db = g.pop("db", None)
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if db is not None:
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db.close()
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@app.route("/", methods=["GET", "POST"])
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def index():
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db = get_db()
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cur = db.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
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# --- Обработка POST (create / update / delete) — POST-redirect-GET ---
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if request.method == "POST":
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action = request.form.get("action", "")
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if action == "create":
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cur.execute(
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f"INSERT INTO {TABLE_NAME} (value) VALUES (%s)",
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(request.form.get("value", ""),),
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)
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elif action == "update":
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cur.execute(
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f"UPDATE {TABLE_NAME} SET value = %s WHERE id = %s",
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(request.form.get("value", ""), int(request.form.get("id", 0))),
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)
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elif action == "delete":
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cur.execute(
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f"DELETE FROM {TABLE_NAME} WHERE id = %s",
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(int(request.form.get("id", 0)),),
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)
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cur.close()
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return redirect(url_for("index"))
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# --- GET: список + форма редактирования ---
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edit_row = None
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edit_id = request.args.get("edit")
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if edit_id:
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cur.execute(
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f"SELECT id, value FROM {TABLE_NAME} WHERE id = %s",
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(int(edit_id),),
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)
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row = cur.fetchone()
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if row:
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edit_row = dict(row)
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# Список всех записей
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cur.execute(f"SELECT id, value FROM {TABLE_NAME} ORDER BY id")
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rows = cur.fetchall()
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cur.close()
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return render_template(
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"index.html",
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table_name=TABLE_NAME,
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rows=rows,
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edit_row=edit_row,
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version=VERSION,
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)
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if __name__ == "__main__":
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with app.app_context():
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init_db()
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app.run(host="0.0.0.0", port=int(os.environ.get("PORT", 5000)), debug=False)
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@@ -0,0 +1,55 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<svg
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width="57"
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height="57"
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xml:space="preserve"
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overflow="hidden"
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version="1.1"
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id="svg8"
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sodipodi:docname="U_v3.svg"
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inkscape:version="1.3.2 (091e20e, 2023-11-25, custom)"
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xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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xmlns="http://www.w3.org/2000/svg"
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xmlns:svg="http://www.w3.org/2000/svg"><sodipodi:namedview
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id="namedview8"
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pagecolor="#ffffff"
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bordercolor="#000000"
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borderopacity="0.25"
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inkscape:showpageshadow="2"
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inkscape:pageopacity="0.0"
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inkscape:pagecheckerboard="0"
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inkscape:deskcolor="#d1d1d1"
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inkscape:zoom="16.226667"
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inkscape:cx="27.146672"
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inkscape:cy="28.317584"
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inkscape:window-width="2560"
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inkscape:window-height="1494"
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inkscape:window-x="-11"
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inkscape:window-y="-11"
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inkscape:window-maximized="1"
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inkscape:current-layer="svg8" /><defs
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id="clip0"><rect
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x="652"
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y="420"
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width="64"
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height="75"
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id="clip1"><rect
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x="652"
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y="420"
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width="64"
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clip-path="url(#clip0)"
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transform="matrix(1.0135748,0,0,1.0135748,-664.97034,-440.30567)"
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id="g8"><g
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clip-path="url(#clip1)"
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id="g7"><g
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fill-rule="evenodd"
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|
After Width: | Height: | Size: 2.0 KiB |
Executable
+25
@@ -0,0 +1,25 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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<!-- Creator: CorelDRAW -->
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<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" width="82.3711mm" height="18.2443mm" version="1.1" style="shape-rendering:geometricPrecision; text-rendering:geometricPrecision; image-rendering:optimizeQuality; fill-rule:evenodd; clip-rule:evenodd"
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viewBox="0 0 8221.93 1821.07"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xodm="http://www.corel.com/coreldraw/odm/2003">
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<defs>
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<style type="text/css">
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<![CDATA[
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<metadata id="CorelCorpID_0Corel-Layer"/>
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</svg>
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|
After Width: | Height: | Size: 2.8 KiB |
@@ -0,0 +1,111 @@
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:root {
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--brand-primary: #2563eb;
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--brand-primary-dark: #1d4ed8;
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--brand-gray: #d1d5db;
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--brand-grey-light: #f3f4f6;
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--brand-destructive: #ef4444;
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--brand-success: #22c55e;
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--text-primary: #1a1a1a;
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--text-muted: #6b7280;
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--bg-card: #ffffff;
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--radius: 12px;
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}
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* { box-sizing: border-box; margin: 0; padding: 0; }
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body {
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font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
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font-size: 14px;
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color: var(--text-primary);
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background: var(--brand-grey-light);
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min-height: 100vh;
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padding: 40px 16px;
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}
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.container { max-width: 720px; margin: 0 auto; }
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/* Header */
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.header {
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display: flex; align-items: center; gap: 12px;
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margin-bottom: 24px;
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}
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.header img { height: 36px; }
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.header h1 { font-size: 20px; font-weight: 600; color: #001C34; }
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/* Card */
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.card {
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background: var(--bg-card);
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border-radius: var(--radius);
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border: 1px solid var(--brand-gray);
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box-shadow: 0 1px 2px rgba(0,0,0,0.05);
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overflow: hidden;
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margin-bottom: 20px;
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}
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.card-header {
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background: var(--brand-grey-light);
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padding: 12px 16px;
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font-weight: 600;
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font-size: 16px;
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}
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.card-body { padding: 16px; }
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/* Table */
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table { width: 100%; border-collapse: collapse; }
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th {
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background: var(--brand-grey-light);
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text-transform: uppercase;
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font-size: 12px;
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font-weight: 600;
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color: var(--text-muted);
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padding: 8px 12px;
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text-align: left;
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border-right: 1px solid var(--brand-gray);
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}
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th:last-child { border-right: none; text-align: center; width: 60px; }
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td {
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padding: 8px 12px;
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border-bottom: 1px solid var(--brand-gray);
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border-right: 1px solid var(--brand-gray);
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}
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td:last-child { border-right: none; text-align: center; width: 60px; }
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tr:hover { background: rgba(243,244,246,0.5); }
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tr:last-child td { border-bottom: none; }
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/* Buttons */
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.btn {
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display: inline-flex; align-items: center; gap: 4px;
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height: 32px; padding: 0 12px;
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border: 1px solid var(--brand-gray);
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border-radius: 6px;
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background: var(--bg-card);
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font-size: 14px; font-family: inherit;
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cursor: pointer; white-space: nowrap;
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text-decoration: none;
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color: var(--text-primary);
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}
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.btn:hover { background: var(--brand-grey-light); }
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.btn-primary {
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background: var(--brand-primary); color: #fff; border-color: var(--brand-primary);
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}
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.btn-primary:hover { background: var(--brand-primary-dark); }
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.btn-sm { height: 28px; padding: 0 8px; font-size: 13px; }
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/* Form */
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.form-grid {
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display: grid;
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grid-template-columns: 1fr;
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gap: 12px;
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}
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.form-row {
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display: flex; gap: 8px; align-items: flex-end;
|
||||
}
|
||||
.form-row input { flex: 1; }
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||||
input[type="text"] {
|
||||
height: 36px; padding: 0 12px;
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border: 1px solid var(--brand-gray);
|
||||
border-radius: 6px; font-size: 14px; font-family: inherit;
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||||
}
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||||
input[type="text"]:focus { outline: none; border-color: var(--brand-primary); box-shadow: 0 0 0 2px rgba(37,99,235,0.15); }
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/* Footer */
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||||
.footer { text-align: center; padding: 16px; color: #9ca3af; font-size: 12px; }
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||||
|
||||
/* Empty state */
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||||
.empty-cell { color: var(--text-muted); padding: 24px; text-align: center; }
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@@ -0,0 +1,108 @@
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<!---
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index.html — CRUD-интерфейс для таблицы в PostgreSQL (Flask + Jinja2).
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Логика:
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1. Если POST-запрос с action — выполняем create/update/delete
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и редиректим на GET (POST-redirect-GET паттерн)
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||||
2. Если GET-запрос с ?edit=ID — загружаем запись для редактирования
|
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3. Всегда показываем список всех записей + форму добавления/редактирования
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||||
|
||||
Безопасность:
|
||||
- Параметризованные запросы (%s) в app.py → защита от SQL-инъекций
|
||||
- redirect после POST → защита от повторной отправки формы
|
||||
- Jinja2 автоэкранирование → XSS-защита
|
||||
|
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Переменные (из app.py):
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||||
- table_name — имя таблицы
|
||||
- rows — список записей [(id, value), ...]
|
||||
- edit_row — запись для редактирования {} или None
|
||||
- version — версия приложения
|
||||
--->
|
||||
<!DOCTYPE html>
|
||||
<html lang="ru">
|
||||
<head>
|
||||
<meta charset="UTF-8" />
|
||||
<title>CRUD Flask Example — {{ table_name }}</title>
|
||||
<link rel="icon" type="image/svg+xml" href="{{ url_for('static', filename='favicon.svg') }}" />
|
||||
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}" />
|
||||
</head>
|
||||
<body>
|
||||
<div class="container">
|
||||
|
||||
<div class="header">
|
||||
<img src="{{ url_for('static', filename='logo.svg') }}" alt="Nubes" />
|
||||
<h1>CRUD Flask Example</h1>
|
||||
</div>
|
||||
|
||||
<div class="card">
|
||||
<div class="card-header">Записи</div>
|
||||
<div class="card-body" style="padding: 0;">
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th>ID</th>
|
||||
<th>VALUE</th>
|
||||
<th style="text-align:center;"></th>
|
||||
<th style="text-align:center;"></th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
{% for row in rows %}
|
||||
<tr>
|
||||
<td>{{ row.id }}</td>
|
||||
<td>{{ row.value }}</td>
|
||||
<td style="text-align:center;">
|
||||
<a href="?edit={{ row.id }}" class="btn btn-sm">✏️</a>
|
||||
</td>
|
||||
<td style="text-align:center;">
|
||||
<form method="post" style="display:inline">
|
||||
<input type="hidden" name="action" value="delete" />
|
||||
<input type="hidden" name="id" value="{{ row.id }}" />
|
||||
<button type="submit" class="btn btn-sm" onclick="return confirm('Удалить {{ row.id }}?')">🗑️</button>
|
||||
</form>
|
||||
</td>
|
||||
</tr>
|
||||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
{% if not rows %}
|
||||
<div class="empty-cell">Нет записей. Создайте первую.</div>
|
||||
{% endif %}
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="card">
|
||||
{% if edit_row %}
|
||||
<div class="card-header">Редактировать #{{ edit_row.id }}</div>
|
||||
<div class="card-body">
|
||||
<form method="post" class="form-grid">
|
||||
<input type="hidden" name="action" value="update" />
|
||||
<input type="hidden" name="id" value="{{ edit_row.id }}" />
|
||||
<div class="form-row">
|
||||
<input type="text" name="value" value="{{ edit_row.value }}" required placeholder="Значение" />
|
||||
<button type="submit" class="btn btn-primary">Сохранить</button>
|
||||
<a href="/" class="btn">Отмена</a>
|
||||
</div>
|
||||
</form>
|
||||
</div>
|
||||
{% else %}
|
||||
<div class="card-header">Добавить</div>
|
||||
<div class="card-body">
|
||||
<form method="post" class="form-grid">
|
||||
<input type="hidden" name="action" value="create" />
|
||||
<div class="form-row">
|
||||
<input type="text" name="value" placeholder="Значение" required />
|
||||
<button type="submit" class="btn btn-primary">Добавить</button>
|
||||
</div>
|
||||
</form>
|
||||
</div>
|
||||
{% endif %}
|
||||
</div>
|
||||
|
||||
</div>
|
||||
|
||||
<div class="footer">
|
||||
v{{ version }} — {{ table_name }}
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user