Configure flask

1. create a file

2. Use django Open file

2.2 Choose the path

3. Configure virtual environment

First step ：

The second step ：

4. Install the required package

First step ： Copy files from the root directory

The second step ：pip install -r file name install

5. To configure app

5.1 To configure create_app

First step ： Created in the root directory create_app file

from flask import Flask
from views.order import order_bp
from models.model import db

def create_app(config):
    flask_app = Flask(__name__)

    flask_app.config.from_object(config)
    #  Registered blueprint 
    flask_app.register_blueprint(order_bp)

    db.init_app(flask_app)
    return flask_app

5.2 Configure default file

establish settings Folder , establish config file

class DefaultConfig:
    SECRET_KEY = 'ashdvbjsvsvbsivksvskd'
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:[email protected]:3306/homework'
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    SQLALCHEMY_ECHO = True
    JSON_AS_ASCII = False

5.3 To configure app

First step : Created in the root directory app file
notes :: Cross domain configuration is required for front and rear end joint commissioning

from create_app import create_app
from settings.config import DefaultConfig
from flask_cors import CORS

app = create_app(DefaultConfig)

cors = CORS(app)

6. Configuration blueprint

First step ： Create a folder at the root
The second step ： create a file

6.1 Configuration blueprint

from flask import Blueprint

order_bp = Blueprint('order_bp',__name__,url_prefix='/order')

6.2 Registered blueprint

stay create_app Registered in the

flask_app.register_blueprint(order_bp)

6.3 The configuration view

Remember to configure the route

from flask_restful import Api,Resource,reqparse
order_bp = Blueprint('order_bp',__name__,url_prefix='/order')

api = Api(order_bp)

class HospitalView(Resource):
    def get(self):
        return '111'

api.add_resource(HospitalView,'/list')

7. Configuration database

7.1 establish model file

establish models Folder , create a file

from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()

7.2 To configure db

stay create_app file

from flask import Flask
from views.order import order_bp
from models.model import db

def create_app(config):
    flask_app = Flask(__name__)

    flask_app.config.from_object(config)
    #  Registered blueprint 
    flask_app.register_blueprint(order_bp)

    db.init_app(flask_app)
    return flask_app

7.3 Create table

stay model file

from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()

#  The hospital 
class Host(db.Model):
    id = db.Column(db.Integer,primary_key=True,autoincrement=True,comment=' The hospital ID')
    name = db.Column(db.String(32),comment=' Hospital name ')
    img = db.Column(db.String(256),comment=' picture ')
    phone = db.Column(db.String(11), comment=' Telephone ')
    adr = db.Column(db.String(64), comment=' Address ')
    meals = db.relationship('Meal',backref='host')

7.4 To configure manage file

Created in the root directory manage file

from flask_script import Manager
from app import app
from flask_migrate import Migrate,MigrateCommand
from models.model import db

manage = Manager(app)

migrate = Migrate(app,db)

manage.add_command('db',MigrateCommand)


if __name__ == '__main__':
    manage.run()

7.5 Generate migration execute migration

python manage.py db init  #  Initialize database 

python manage.py db migrate #  Generate migration 

python manage.py db upgrade #  Perform the migration