Supprimer z2/app.py
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z2/app.py
173
z2/app.py
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from flask import Flask, request, redirect, url_for, render_template_string
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import os
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import psycopg2
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from psycopg2 import pool
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app = Flask(__name__)
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DB_HOST = os.environ.get('DB_HOST', 'localhost')
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DB_PORT = os.environ.get('DB_PORT', '5432')
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DB_NAME = os.environ.get('DB_NAME', 'postgres')
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DB_USER = os.environ.get('DB_USER', 'postgres')
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DB_PASS = os.environ.get('DB_PASS', 'postgres')
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connection_pool = psycopg2.pool.SimpleConnectionPool(
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1, 10,
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host=DB_HOST,
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port=DB_PORT,
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database=DB_NAME,
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user=DB_USER,
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password=DB_PASS
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)
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def init_db():
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conn = connection_pool.getconn()
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try:
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with conn.cursor() as cur:
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cur.execute('''
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CREATE TABLE IF NOT EXISTS shopping_items (
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id SERIAL PRIMARY KEY,
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item TEXT NOT NULL,
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quantity INTEGER DEFAULT 1,
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purchased BOOLEAN DEFAULT FALSE
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);
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''')
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conn.commit()
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except Exception as e:
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print(f"Erreur lors de l'initialisation de la base de données: {e}")
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conn.rollback()
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finally:
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connection_pool.putconn(conn)
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HTML_TEMPLATE = """
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<!DOCTYPE html>
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<html>
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<head>
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<title>Liste de Courses</title>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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</head>
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<body>
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<h1>Ma Liste de Courses</h1>
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<form action="/add" method="post">
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<input type="text" name="item" placeholder="Article" required>
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<input type="number" name="quantity" value="1" min="1">
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<button type="submit">Ajouter</button>
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</form>
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<h2>Articles à acheter</h2>
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<ul>
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{% for item in items %}
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{% if not item[3] %}
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<li>
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{{ item[1] }} ({{ item[2] }})
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<form action="/toggle/{{ item[0] }}" method="post" style="display:inline">
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<button type="submit">Acheté</button>
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</form>
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<form action="/delete/{{ item[0] }}" method="post" style="display:inline">
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<button type="submit">Supprimer</button>
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</form>
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</li>
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{% endif %}
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{% endfor %}
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</ul>
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<h2>Articles achetés</h2>
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<ul>
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{% for item in items %}
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{% if item[3] %}
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<li>
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{{ item[1] }} ({{ item[2] }})
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<form action="/toggle/{{ item[0] }}" method="post" style="display:inline">
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<button type="submit">Non acheté</button>
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</form>
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<form action="/delete/{{ item[0] }}" method="post" style="display:inline">
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<button type="submit">Supprimer</button>
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</form>
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</li>
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{% endif %}
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{% endfor %}
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</ul>
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</body>
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</html>
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"""
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@app.route('/')
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def index():
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conn = connection_pool.getconn()
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try:
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with conn.cursor() as cur:
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cur.execute("SELECT id, item, quantity, purchased FROM shopping_items ORDER BY purchased, id")
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items = cur.fetchall()
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except Exception as e:
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print(f"Erreur lors de la récupération des articles: {e}")
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items = []
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finally:
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connection_pool.putconn(conn)
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return render_template_string(HTML_TEMPLATE, items=items)
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@app.route('/add', methods=['POST'])
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def add_item():
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item = request.form.get('item')
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quantity = request.form.get('quantity', 1, type=int)
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conn = connection_pool.getconn()
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try:
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with conn.cursor() as cur:
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cur.execute(
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"INSERT INTO shopping_items (item, quantity) VALUES (%s, %s)",
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(item, quantity)
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)
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conn.commit()
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except Exception as e:
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print(f"Erreur lors de l'ajout d'un article: {e}")
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conn.rollback()
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finally:
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connection_pool.putconn(conn)
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return redirect(url_for('index'))
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@app.route('/toggle/<int:item_id>', methods=['POST'])
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def toggle_item(item_id):
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conn = connection_pool.getconn()
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try:
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with conn.cursor() as cur:
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cur.execute(
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"UPDATE shopping_items SET purchased = NOT purchased WHERE id = %s",
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(item_id,)
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)
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conn.commit()
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except Exception as e:
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print(f"Erreur lors du basculement du statut: {e}")
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conn.rollback()
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finally:
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connection_pool.putconn(conn)
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return redirect(url_for('index'))
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@app.route('/delete/<int:item_id>', methods=['POST'])
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def delete_item(item_id):
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conn = connection_pool.getconn()
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try:
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with conn.cursor() as cur:
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cur.execute("DELETE FROM shopping_items WHERE id = %s", (item_id,))
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conn.commit()
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except Exception as e:
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print(f"Erreur lors de la suppression d'un article: {e}")
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conn.rollback()
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finally:
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connection_pool.putconn(conn)
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return redirect(url_for('index'))
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with app.app_context():
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try:
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init_db()
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except Exception as e:
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print(f"Impossible d'initialiser la base de données: {e}")
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if __name__ == "__main__":
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port = int(os.environ.get("PORT", 5000))
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app.run(host='0.0.0.0', port=port, debug=True)
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