Records#
- Today is another practice day, writing a chat room, reminiscent of the online romance chat room from N years ago, is it considered nostalgic?
- After several days of not coding, I have almost forgotten about db operations, session operations, form operations, and request operations.
- I referred to the previous code and completed the exercise. The overall idea is correct, and I didn't debug much.
- I got stuck when trying to retrieve the last 5 records, but with the help of chatgpt, I managed to retrieve the 5 records.
CODE#
main.py#
from flask import Flask, request, redirect, session
from replit import db
import os
from datetime import datetime
app = Flask(__name__)
app.secret_key = os.environ['sission_key']
@app.route("/", methods=["GET"])
def index():
f = open("index.html", "r")
page = f.read()
f.close()
text1 = ''
record_keys = list(db.keys())
last_5_keys = record_keys[-5:]
if last_5_keys:
for key in last_5_keys:
if session.get("user") == "DengLe":
login = f"<a href='/del?id={key}'>X</a>"
else:
login = ""
ms = db[key]
text = f"""
<p><span>{ms["user"]}：</span><span>{ms["message"]}</span><span>{login}</span></p>
"""
text1 += text
page = page.replace("{text}", text1)
return page
@app.route("/", methods=["POST"])
def message():
form = request.form
message = form["message"]
vuser = request.headers["X-Replit-User-Name"]
session["user"] = vuser
timestamp = datetime.now().timestamp()
db[timestamp] = {"message": message, "user": vuser}
return redirect("/")
@app.route("/del")
def delmessage():
form = request.args
del db[form['id']]
return redirect("/")
app.run(host='0.0.0.0', port=81)
HTML#
<html>
<head>
<title>Online Romance</title>
<script src="https://replit.com/public/js/repl-auth-v2.js"></script>
</head>
<body>
<h1>Online Romance Chat Room</h1>
<p><button onclick="LoginWithReplit()"> Login </button>
</p>
<form action="/" method="post">
<input type="text" name="message">
<button>Send</button>
</form>
<p>{text}</p>
</body>
</html>