伙计们，我正在做一个网站项目。我需要帮助阅读整个表格，并将其显示在我的网站页面“index.html”。
要求：我有一个表'kolkata'在localhost phpmyadmin使用SQLAlchemy的 flask ，我已经搜索了太多的谷歌，但不能找到解决方案，所以我来到这里.所以基本上我的表有3列- sno（自动增量和主键），雇员_名称和雇员_状态.我想在我的应用程序中读取整个表，其main.py如下-
from flask import Flask, render_template, request, session
from flask_sqlalchemy import SQLAlchemy
from flask_mail import Mail
import json
from datetime import datetime
from sqlalchemy import select
import sqlalchemy
with open('config.json', 'r') as c:
params = json.load(c)["params"]
local_server = True
app = Flask(__name__)
app.secret_key = 'super-secret-key'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config.update(
MAIL_SERVER = 'smtp.gmail.com',
MAIL_PORT = '465',
MAIL_USE_SSL = True,
MAIL_USERNAME = params['gmail-user'],
MAIL_PASSWORD= params['gmail-password']
)
mail = Mail(app)
if(local_server):
app.config['SQLALCHEMY_DATABASE_URI'] = params['local_uri']
else:
app.config['SQLALCHEMY_DATABASE_URI'] = params['prod_uri']
db = SQLAlchemy(app)
class data_reader(db.Model):
sno = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30))
@app.route("/", methods=["GET", "POST"])
def home():
if (session['user_pass'] == params['sitehr_password']):
data = db.session.query(data_reader)
print(data)
#here i need to add the code which u will give me
return render_template('index.html', employeedata=data)
if request.method=='POST':
username = request.form.get('uname')
userpass = request.form.get('pass')
usersite = request.form.get('select_site')
if (userpass == params['sitehr_password']):
#set the session variable
session['user'] = username
session['user_pass'] = userpass
session['user_site'] = usersite
return render_template('index.html')
return render_template("login.html")
app.run(debug=True)我的index.html如下-
<html>
<head>
<title>
Employee Status Manager
</title>
</head>
<body>
<table>
<th>Serial No.</th>
<th>Employee Name</th>
{% for row in employeedata %}
<tr>
<td> {{row.sno}} <td>
<td> {{row.employee_name}} <td>
<tr>
{% endfor %}
</table>
{{employeedata}}
</body>
</html>我的config.json位于此处
{
"params":
{
"sitehr_password": "asdf",
"gmail-user":"parvanshusharma12@gmail.com",
"gmail-password":"******",
"local_uri": "mysql://root:@localhost/employeestatus",
"prod_uri":"mysql://root:@localhost/employeestatus"
}
}当我运行代码时，我得到一个类似这样的错误-https://i.stack.imgur.com/7Yeop.png
我的vscode错误在终端如下-
sqlalchemy.exc.ProgrammingError
sqlalchemy.exc.ProgrammingError: (MySQLdb._exceptions.ProgrammingError) (1146, "Table 'employeestatus.data_reader' doesn't exist")
[SQL: SELECT data_reader.sno AS data_reader_sno, data_reader.name AS data_reader_name
FROM data_reader]
(Background on this error at: https://sqlalche.me/e/14/f405)我的phpmyadmin数据库的图片-https://i.stack.imgur.com/6oxVQ.png
我真的不明白它的意思是什么，下一步该怎么办，我浪费了我的3个小时，但什么也不能达到，现在我完全依赖于你们的人。提前感谢！！
1条答案
按热度按时间c3frrgcw1#
你的类是
data_reader是错误的。您需要将表名添加到此类：