Differentiate between dev and prod

create_db.py

@@ -1,25 +0,0 @@
-import sqlite3
-
-DB_PATH = 'letter_data.db'
-
-
-def init_db():
-    with sqlite3.connect(DB_PATH) as conn:
-        cur = conn.cursor()
-        cur.execute('''CREATE TABLE IF NOT EXISTS sender (
-            id INTEGER PRIMARY KEY AUTOINCREMENT,
-            name TEXT,
-            address TEXT,
-            logo TEXT,
-            signature TEXT)''')
-        cur.execute('''CREATE TABLE IF NOT EXISTS state (
-            id INTEGER PRIMARY KEY AUTOINCREMENT,
-            name TEXT)''')
-        cur.execute('''CREATE TABLE IF NOT EXISTS recipient (
-            id INTEGER PRIMARY KEY AUTOINCREMENT,
-            name TEXT,
-            address TEXT,
-            state_id INTEGER,
-            FOREIGN KEY(state_id) REFERENCES state(id))''')
-
-init_db()

tharanor-letter.py

@@ -1,21 +1,22 @@
 from flask import Flask, render_template, request, jsonify
 from werkzeug.utils import secure_filename
 from pathlib import Path
-import os
+from argparse import ArgumentParser
+from warnings import warn
 import sqlite3
 
 app = Flask(__name__)
 app.config['UPLOAD_FOLDER'] = Path('./static/uploads')
-os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
+app.config['UPLOAD_FOLDER'].mkdir(parents=True, exist_ok=True)
 
 DB_PATH = 'letter_data.db'
 
 
-def query_db(query, args=(), one=False):
+def query_db(query, query_args=(), one=False):
     conn = sqlite3.connect(DB_PATH)
     conn.row_factory = sqlite3.Row
     cur = conn.cursor()
-    cur.execute(query, args)
+    cur.execute(query, query_args)
     rv = cur.fetchall()
     conn.commit()
     conn.close()
@@ -36,7 +37,9 @@ def generate():
     recipient_id = request.form['recipient']
     text = request.form['text']
     sender = query_db('SELECT * FROM sender WHERE id = ?', [sender_id], one=True)
-    recipient = query_db('SELECT recipient.*, state.name as state_name FROM recipient LEFT JOIN state ON recipient.state_id = state.id WHERE recipient.id = ?', [recipient_id], one=True)
+    recipient = query_db('SELECT recipient.*, state.name as state_name'
+                         'FROM recipient LEFT JOIN state ON recipient.state_id = state.id'
+                         'WHERE recipient.id = ?', [recipient_id], one=True)
     return render_template('letter.html', sender=sender, recipient=recipient, text=text)
 
 
@@ -153,4 +156,10 @@ def api_edit_state(state_id):
 
 
 if __name__ == '__main__':
-    app.run(debug=True)
+    parser = ArgumentParser()
+    parser.add_argument('-a', '--address', default='127.0.0.1', help="Host IP address to bind to (default: 127.0.0.1)")
+    parser.add_argument('-p', '--port', default='5000', help="Port to bind to (default: 5000)")
+    args = parser.parse_args()
+    warn("Falls diese Umgebung produktiv ist, nutze besser:\n"
+         f"gunicorn --bind {args.address}:{args.port} --log-level tharanor-letter.py:app")
+    app.run(debug=True, host=args.address, port=args.port)