Blueprint - 中文译为 蓝图
。通过它规划 flask 中的各项功能模块。本笔记参考了: https://spacewander.github.io/explore-flask-zh/7-blueprints.html
Flask 项目结构
在项目结构的规划方面参考了 Larger Applications 即采用 package
形式。
/foshime
/static
/templates
/views
user.py
__init__.py
database.py
setup.py
setup.py
from setuptools import setup
setup(
name='foshime',
packages=['foshime'],
include_package_data=True,
install_requires=[
'flask',
'flask-sqlalchemy',
]
)
/foshime/init.py
from flask import Flask
from .views import user
app = Flask(__name__)
app.register_blueprint(user.mod)
/foshime/views/user.py
from flask import Blueprint
mod = Blueprint('user', __name__, url_prefix='/user/')
@mod.route('')
def index():
return 'Hello world!'
/foshime/database.py
from sqlalchemy import create_engine, Column, String, Integer
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.ext.declarative import declarative_base
engine = create_engine('sqlite:///database.db', convert_unicode=True)
db_session = scoped_session(sessionmaker(autocommit=False,
autoflush=False,
bind=engine))
Base = declarative_base()
Base.query = db_session.query_property()
def init_db():
Base.metadata.create_all(bind=engine)
class Temple(Base):
__tablename__ = 'temples'
id = Column(Integer, primary_key=True)
name = Column(String(100))
address = Column(String(200))
def __init__(self, name=None, address=None):
self.name = name
self.address = address
def __repr__(self):
return '<Name %r>' % (self.name)
运行方法
导入项目名环境变量:
$ export FLASK_APP=foshime
启用 debug 模式:
$ export FLASK_DEBUG=true
安装项目依赖,运行程序:
pip install -e .
flask run