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z1/app/Dockerfile
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z1/app/Dockerfile
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FROM python:3.9-slim
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# Set the working directory
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WORKDIR /app
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# Copy the requirements file and install Python dependencies
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COPY requirements.txt .
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RUN pip install --no-cache-dir -r requirements.txt
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# Copy the application source code
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COPY app.py .
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# Expose port 5000 for the Flask application
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EXPOSE 5000
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# Start the Flask application
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CMD ["python", "app.py"]
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z1/app/app.py
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z1/app/app.py
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from flask import Flask, request, render_template_string, redirect, url_for
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import os
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import psycopg2
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app = Flask(__name__)
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# Retrieve database connection settings from environment variables.
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db_host = os.environ.get("DB_HOST", "postgres_db")
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db_name = os.environ.get("POSTGRES_DB", "sampledb")
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db_user = os.environ.get("POSTGRES_USER", "user")
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db_password = os.environ.get("POSTGRES_PASSWORD", "password")
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# Function to get the database connection.
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def get_db_connection():
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conn = psycopg2.connect(
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host=db_host,
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database=db_name,
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user=db_user,
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password=db_password
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)
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return conn
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# Initialize the database and create the shopping list table if it doesn't exist.
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def init_db():
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conn = get_db_connection()
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cur = conn.cursor()
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cur.execute("""
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CREATE TABLE IF NOT EXISTS shopping_list (
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id SERIAL PRIMARY KEY,
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item VARCHAR(255) NOT NULL UNIQUE,
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category VARCHAR(100) NOT NULL
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);
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""")
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conn.commit()
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cur.close()
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conn.close()
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# Function to categorize items intelligently.
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def categorize_item(item_name):
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item_name = item_name.lower()
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categories = {
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'fruits': ['apple', 'banana', 'orange', 'grape', 'pear'],
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'vegetables': ['carrot', 'broccoli', 'lettuce', 'spinach'],
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'dairy': ['milk', 'cheese', 'yogurt', 'butter'],
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'beverages': ['coffee', 'tea', 'water', 'juice'],
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'snacks': ['chips', 'cookies', 'chocolate', 'nuts'],
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'others': []
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}
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# Check each category and see if the item belongs.
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for category, items in categories.items():
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if any(item in item_name for item in items):
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return category
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# Default category if no match is found
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return 'others'
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@app.route("/", methods=["GET", "POST"])
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def index():
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if request.method == "POST":
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item = request.form.get("item")
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if item:
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# Check if item already exists in the database to avoid duplicates.
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conn = get_db_connection()
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cur = conn.cursor()
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cur.execute("SELECT * FROM shopping_list WHERE item = %s", (item,))
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existing_item = cur.fetchone()
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if not existing_item: # Only insert if item doesn't exist already.
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category = categorize_item(item)
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cur.execute("INSERT INTO shopping_list (item, category) VALUES (%s, %s)", (item, category))
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conn.commit()
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cur.close()
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conn.close()
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conn = get_db_connection()
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cur = conn.cursor()
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cur.execute("SELECT * FROM shopping_list;")
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items = cur.fetchall()
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cur.close()
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conn.close()
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# Group items by category for display purposes.
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categorized_items = {}
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for item in items:
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if item[2] not in categorized_items:
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categorized_items[item[2]] = []
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categorized_items[item[2]].append(item[1])
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return render_template_string("""
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<html>
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<head>
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<title>Smart Shopping List</title>
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<style>
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body {
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font-family: 'Arial', sans-serif;
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background: linear-gradient(135deg, #ff6e7f, #bfe9ff);
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margin: 0;
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padding: 0;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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color: #fff;
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}
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h1 {
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font-size: 3em;
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text-align: center;
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margin-bottom: 30px;
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text-transform: uppercase;
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letter-spacing: 5px;
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}
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.container {
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width: 100%;
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max-width: 800px;
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background: rgba(255, 255, 255, 0.1);
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border-radius: 15px;
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padding: 30px;
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box-shadow: 0 4px 40px rgba(0, 0, 0, 0.2);
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backdrop-filter: blur(10px);
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}
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form {
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display: flex;
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justify-content: center;
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margin-bottom: 40px;
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}
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input[type="text"] {
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padding: 15px;
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width: 70%;
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border: none;
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border-radius: 10px;
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font-size: 1.2em;
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outline: none;
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margin-right: 15px;
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background: #fff;
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color: #333;
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transition: all 0.3s ease-in-out;
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}
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input[type="text"]:focus {
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transform: scale(1.05);
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border: 2px solid #ff6e7f;
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}
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button {
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padding: 15px 30px;
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background-color: #ff6e7f;
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border: none;
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border-radius: 10px;
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color: #fff;
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font-size: 1.2em;
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cursor: pointer;
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transition: all 0.3s ease-in-out;
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}
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button:hover {
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background-color: #ff3b4d;
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transform: scale(1.05);
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}
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ul {
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list-style-type: none;
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padding: 0;
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display: flex;
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flex-direction: column;
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gap: 15px;
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}
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li {
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background: #ffffff;
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color: #333;
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padding: 15px;
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font-size: 1.5em;
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border-radius: 10px;
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transition: all 0.3s ease;
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box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
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display: flex;
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justify-content: space-between;
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}
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li:hover {
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transform: translateY(-5px);
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box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
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}
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.category {
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font-size: 1.8em;
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margin-bottom: 20px;
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text-align: center;
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}
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.remove {
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background-color: #ff3b4d;
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padding: 8px;
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border-radius: 5px;
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color: white;
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cursor: pointer;
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}
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.remove:hover {
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background-color: #ff1f2d;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h1>Smart Shopping List</h1>
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<form method="post">
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<input type="text" name="item" placeholder="What do you need to buy?" required>
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<button type="submit">Add Item</button>
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</form>
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{% for category, items in categorized_items.items() %}
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<div class="category">{{ category|capitalize }}</div>
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<ul>
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{% for item in items %}
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<li>
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{{ item }}
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<a href="{{ url_for('remove_item', item_name=item) }}" class="remove">Remove</a>
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</li>
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{% endfor %}
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</ul>
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{% endfor %}
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</div>
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</body>
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</html>
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""", categorized_items=categorized_items)
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# Route to remove an item from the shopping list.
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@app.route("/remove/<item_name>")
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def remove_item(item_name):
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conn = get_db_connection()
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cur = conn.cursor()
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cur.execute("DELETE FROM shopping_list WHERE item = %s", (item_name,))
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conn.commit()
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cur.close()
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conn.close()
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return redirect(url_for('index'))
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if __name__ == "__main__":
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init_db() # Initialize the database and table
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app.run(host='0.0.0.0', port=5000)
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2
z1/app/requirements.txt
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2
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@ -0,0 +1,2 @@
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Flask
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psycopg2-binary
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