项目的高级拆分

1. 拆分原理

2. 从manager.py入口开始

from App import createApp

app = createApp()
manager = Manager(app)
manager.add_command('db',MigrateCommand)

if __name__="__main__"
  manager.run()

3. 进入到inti.py中

from flask import Flask
from App.views import init_views
from App.ext import init_ext
def createApp(env=None):
  app = Flask(__name__)
  
  init_views(app)    # 导入views，主要是蓝图
  init_ext(app)     # 导入ext扩展
  app.config.from_object(config.get(env or 'default'))
  return app

4. settings.py配置

class BaseConfig():
  DEBUG = True
  SECRET_KEY = 'FKADJFIfjkdfjsjf93w93r8@JJ4'
  SESSION_TYPE = 'redis'
  TESTING = False
class DevelopConfig(BaseConfig):
  SQLALCHEMY_DATABASE_URI = 'sqlite:////dev.db'


class TestConfig(BaseConfig):
  TESTING  = True
  SQLALCHEMY_DATABASE_URI = 'sqlite:////test.db'

  
class ProductConfig(BaseConfig):
  DEBUG = False
  SQLALCHEMY_DATABASE_URI = 'sqlite:////pro.db'




config = {
  'dev':DevelopConfig,
  'test':TestConfig,
  'pro':ProductConfig
}

5. ext.py扩展,用来初始化插件

db = SQLAlchemy()
migrate = Migrate()
def init_ext(app):
  db.init_app(app)
  migrate.init_app(db,app)

6. views.py中配置

from flask_blueprint import Blueprint
from App.models import *
blue = Blueprint('blue',__name__)
def inti_views(app):
  app.register_blueprint(blueprint=blue)

7. models.py中的配置

from App.ext import db
class Student(db.Model):
  id = db.Column(db.Integer,primary_key=True,autoincrement=True)