flask - Display database from python to html
You can pass your data using render_template() like this:
cur = con.cursor()cur.execute("SELECT * FROM dataset")data = cur.fetchall()render_template('template.html', data=data)Then in your template, iterate over the rows, for example you could render table rows for each row:
{% for item in data %}<tr> <td>{{item[0]}}</td> <td>{{item[1]}}</td> ...</tr>{% endfor %}
render_template allows you to pass variables to html, and jinja2 help you to manipulate it. You only need to format your query result and send it within render_template
Example
app.py
@app.route('/test')def test_route(): user_details = { 'name': 'John', 'email': 'john@doe.com' } return render_template('test.html', user=user_details)test.html
<!DOCTYPE html><html> <head> <title>test</title> </head> <body> <!-- use {{}} to access the render_template vars--> <p>{{user.name}}</p> <p>{{user.email}}</p> </body></html>to make the most of jinja2, take a look at his Documentation
Suppose you have table_name = user_info and let's visualize it:
id| name | email | phone |1 | Eltac | eltac@gmail.com | +99421112 |
You can do something like this:
app_name.py
from flask import Flask, render_templateimport mysql.connectormydatabase = mysql.connector.connect( host = 'localhost(or any other host)', user = 'name_of_user', passwd = 'db_password', database = 'database_name')mycursor = mydatabase.cursor()#There you can add home page and others. It is completely depends on you@app.route('/example.html')def example(): mycursor.execute('SELECT * FROM user_info') data = mycursor.fetchall() return render_template('example.html', output_data = data)In the above code we use fetchall() method that's why ID is also included automatically
(Header html tag and others are ignored. I write only inside of body)example.html
--snip--<table> <thead> <tr> <th>ID</th> <th>Name</th> <th>Email</th> <th>Phone</th> </tr> </thead> <tbody> {% for row in output_data %} <-- Using these '{%' and '%}' we can write our python code --> <tr> <td>{{row[0]}}</td> <td>{{row[1]}}</td> <td>{{row[2]}}</td> <td>{{row[3]}}</td> </tr> {% endfor %} <-- Because it is flask framework there would be other keywords like 'endfor' --> </tbody></table>--snip--And finally you get expected result