使用flask-admin和sqlalchemy；现在我正在尝试创建一个表单来添加/删除/编辑表

pip install Flask Flask-Admin Flask-SQLAlchemy

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_admin import Admin
from flask_admin.contrib.sqla import ModelView

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///mydatabase.db'
app.config['SECRET_KEY'] = 'mysecretkey'
db = SQLAlchemy(app)
admin = Admin(app, name='MyApp', template_mode='bootstrap3')

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True, nullable=False)
    email = db.Column(db.String(120), unique=True, nullable=False)

    def __repr__(self):
        return f'<User {self.username}>'

with app.app_context():
    db.create_all()

admin.add_view(ModelView(User, db.session))

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_admin import Admin
from flask_admin.contrib.sqla import ModelView

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///mydatabase.db'
app.config['SECRET_KEY'] = 'mysecretkey'
db = SQLAlchemy(app)
admin = Admin(app, name='MyApp', template_mode='bootstrap3')

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True, nullable=False)
    email = db.Column(db.String(120), unique=True, nullable=False)

    def __repr__(self):
        return f'<User {self.username}>'

admin.add_view(ModelView(User, db.session))

if __name__ == '__main__':
    with app.app_context():
        db.create_all()
    app.run(debug=True)

python app.py

class UserAdmin(ModelView):
    column_list = ('id', 'username', 'email')
    form_columns = ('username', 'email')
    column_searchable_list = ('username', 'email')
    column_filters = ('username', 'email')

admin.add_view(UserAdmin(User, db.session))