了解 Flask 项目结构

mkdir poll_app
cd poll_app
virtualenv .
source bin/activate

from MYAPP.data.models import db
from MYAPP import app
from flask_script import Manager
from flask_migrate import Migrate, MigrateCommand
db.init_app(app)
migrate = Migrate(app, db)
manager = Manager(app)
manager.add_command('db', MigrateCommand)
if __name__ == "__main__":
    manager.run()

python manage.py db init # --> init migrations
python manage.py db migrate # --> migrate models
python manage.py db upgrade # --> apply changes
python manage.py db --help # --> :)

from MYAPP import app
# To do: This place will change later
config = {
    "development": "config.Development"
}
if __name__ == "__main__":
    app.config.from_object(config["development"])
    app.run()

class BaseConfig(object):
    """ Base config class. This fields will use by production and development server """
    ORIGINS = ["*"] # for api calls
    SECRET_KEY = 'YOUR SECRET KEY'
class Development(BaseConfig):
    """ Development config. We use Debug mode """
    PORT = 5000
    DEBUG = True
    TESTING = False
    ENV = 'dev'
# Currently we only have development config.
# If you have production, you will need to pass it to here.
config = {
    'development': 'config.Development'
}
def configure_app(app):
    """ 
        App configuration will be here. 
        Parameters
        ----------
        app : Flask
            app instance
    """
    app.config.from_object(config['development'])

from flask import Blueprint, jsonify, request
from MYAPP.data.models import db, User
user = Blueprint('user', __name__)
@user.route('/', methods=['GET'])
def get_users():
    return jsonify({ "message": "Hi user :)"})
@user.route(&#39;/<int:id>&#39;, methods=[&#39;GET&#39;])
def users(id):
    return jsonify({ "id": id })

from flask_sqlalchemy import SQLAlchemy
from MYAPP import app
# We didn't pass app instance here.
db = SQLAlchemy()
class User(db.Model):
    """ Model for user management """
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(100), unique=True)
    password = db.Column(db.String(100))
    name = db.Column(db.String(100))
    surname = db.Column(db.String(100))
    active = db.Column(db.Boolean(), default=True)
    created_at = db.Column(db.DateTime, default=db.func.now())
    updated_at = db.Column(db.DateTime, default=db.func.now())
    def __init__(self, email, password, name, surname, active, created_at, updated_at):
        self.email = email
        self.password = password
        self.name = name
        self.surname = surname
        self.active = active
        self.created_at = created_at
        self.updated_at = updated_at

from flask import Flask
from flask_cors import CORS
from config import BaseConfig
from config import configure_app
app = Flask(__name__)
from MYAPP.api.user.controllers import user
""" Corst settings will be here. We maybe use this endpoint later. """
cors = CORS(app, resources={
    r'/api/*': {
        'origins': BaseConfig.ORIGINS
    }
})
configure_app(app)
app.url_map.strict_slashes = False
app.register_blueprint(user, url_prefix='/api/users')