db5d631b0d
* Created a newsletters table and added insertion logic during newsletter send. * Added a /newsletters route to display a list of sent newsletters. * Implemented a /newsletter/<int:newsletter_id> route for detailed view. * Developed new templates with navigation, including unsubscribe links. * Enhanced front-end styling and layout for newsletter pages.
66 lines
No EOL
1.7 KiB
Python
66 lines
No EOL
1.7 KiB
Python
import os
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import psycopg2
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from psycopg2 import IntegrityError
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from dotenv import load_dotenv
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load_dotenv()
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def get_connection():
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"""Return a database connection."""
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return psycopg2.connect(
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host=os.getenv("PG_HOST"),
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port=os.getenv("PG_PORT"),
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dbname=os.getenv("PG_DATABASE"),
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user=os.getenv("PG_USER"),
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password=os.getenv("PG_PASSWORD"),
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connect_timeout=10
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)
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def init_db():
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conn = get_connection()
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cursor = conn.cursor()
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS subscribers (
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id SERIAL PRIMARY KEY,
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email TEXT UNIQUE NOT NULL
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)
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""")
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS newsletters(
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id SERIAL PRIMARY KEY,
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subject TEXT NOT NULL,
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body TEXT NOT NULL,
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sent_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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)
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""")
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conn.commit()
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cursor.close()
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conn.close()
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def add_email(email):
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try:
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with get_connection() as conn:
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with conn.cursor() as cursor:
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cursor.execute("INSERT INTO subscribers (email) VALUES (%s)", (email,))
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conn.commit()
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return True
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except IntegrityError:
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return False
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except psycopg2.OperationalError as e:
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print(f"Error: {e}")
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return False
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def remove_email(email):
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try:
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with get_connection() as conn:
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with conn.cursor() as cursor:
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cursor.execute("DELETE FROM subscribers WHERE email = %s", (email,))
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conn.commit()
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if cursor.rowcount > 0:
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return True
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return False
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except Exception as e:
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print(f"Error removing email: {e}")
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return False |