顺便聊一下Python – 一文入门Flask(Blueprint、SQLAlchemy部分）

python3 -V && pip3 -V
pip3 install pipenv

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pipenv shell

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def create_app():
    app = Flask(__name__)
    # 导入config中的配置文件
    app.config.from_object('app.config.setting')
    app.config.from_object('app.config.secure')
    return app

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from app.app import create_app

app = create_app()

if __name__ == '__main__':
    app.run(debug =True,port=81,host= '0.0.0.0')

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from flask import Blueprint

login = Blueprint('login', __name__)


@login.route('/login')
def loginIndex():
    return "login Hello"

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from flask import Flask


def create_app():
    app = Flask(__name__)
    # 导入config中的配置文件
    app.config.from_object('app.config.setting')
    app.config.from_object('app.config.secure')
    # 注册并导入蓝图
    register_blue(app)
    return app


def register_blue(app):
    from app.api.login import login
    app.register_blueprint(login)

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class BaseRoutes:
    def __init__(self, name):
        self.name = name
        self.loader = []

    def route(self, rule, **options):
        def decorator(f):
            self.loader.append((f, rule, options))
            return f

        return decorator

    def register(self, bp, url_prefix=''):
        # 依次注册蓝图
        for f, rule, options in self.loader:
            endpoint = options.pop("endpoint", f.__name__)
            bp.add_url_rule(url_prefix + rule, endpoint, f, **options)

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from app.libs.BaseRoutes import BaseRoutes

api = BaseRoutes('login')


@api.route('/login/loginHandle', methods=['GET', 'POST'])
def loginHandle():
    return "login Hello"

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from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()


class Base(db.Model):
    # 忽略基类的主键
    __abstract__ = True

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from app.models.base import Base


class User(Base):
    __tablename__ = 'user'
    id = Column(Integer, primary_key=True, autoincrement=True)
    name = Column(String(50), nullable=False, default="")
    email = Column(String(120), nullable=False, default="")
    _password = Column('password',String(64))

    @property
    def password(self):
        return self._password

    @password.setter
    def password(self, raw):
        self._password = generate_password_hash(raw)

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SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:[email protected]:3306/admin?charset=utf8'

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def create_app():
    app = Flask(__name__)
    
    app.config.from_object('app.config.secure')

    # 初始化数据库
    db.init_app(app)
    with app.app_context():
        db.create_all()

    return app

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from sqlalchemy import Column, Integer, String, SmallInteger

from app.models.base import Base, db


class tp_manager(Base):

    STATUS_NORMAL = 1
    STATUS_STOP = 0
    
    # ...
    
    @classmethod
    def get_manager_by_name(cls, username):
        r = cls.query.filter(cls.username == username, cls.status == cls.STATUS_NORMAL).one()
        return r
        
        
    @classmethod
    def get_db(cls):
        r = db.session.query(cls).filter(cls.status == cls.STATUS_NORMAL).all()
        return r    

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from flask import request, session, jsonify

from app.libs.BaseRoutes import BaseRoutes
from app.validators.form.login import LoginForm
from app.models.admin.tp_manager import tp_manager

api = BaseRoutes('login')


@api.route('/login/loginHandle', methods=['POST'])
def loginHandle():
    form = LoginForm(request.form)
    if form.validate():
        # 验证通过的逻辑
        r = tp_manager.get_manager_by_name(form.username.data)
        if r:
            msg = '操作成功'
            session['manager_id'] = r.id
        else:
            msg = '账号和密码错误'

        return jsonify({"code": 200, "data": [], "msg": msg})
    else:
        # 错误暂时忽略...
        return form.errors

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SECRET_KEY = '需要加密的key值'

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Column(Integer, index=True, nullable=False,  server_default="0",comment="昵称")

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from sqlalchemy.dialects.mysql import VARCHAR, TEXT, BIGINT, INTEGER, SMALLINT, TINYINT, DECIMAL, FLOAT, \
    DOUBLE, DATETIME, TIMESTAMP, DECIMAL

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from sqlalchemy import Column, Index, Integer

from sqlalchemy.dialects.mysql import VARCHAR, TEXT, BIGINT, INTEGER, SMALLINT, TINYINT, DECIMAL, FLOAT, \
    DOUBLE, DATETIME, TIMESTAMP, DECIMAL

from app.models.base import Base, db


class wm_user_user(Base):
    STATUS_NORMAL = 1
    __tablename__ = 'wm_user_user'

    user_status = Column(TINYINT(display_width=1,unsigned=True), nullable=False, server_default="1",
                         comment="1为正常,0为审核中")
    user_nickname = Column(VARCHAR(length=50), index=True, nullable=False, comment="昵称")

    # 添加配置设置编码
    __table_args__ = {
        'mysql_charset': 'utf8mb4',
        'mysql_collate': 'utf8mb4_general_ci'
    }

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"""Construct a TINYINT.

:param display_width: Optional, maximum display width for this number.

:param unsigned: a boolean, optional.

:param zerofill: Optional. If true, values will be stored as strings
  left-padded with zeros. Note that this does not effect the values
  returned by the underlying database API, which continue to be
  numeric.
  
"""

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__tablename__ = 'wm_user_user'

# ...

__table_args__ = {
    'mysql_charset': 'utf8mb4',
    'mysql_collate': 'utf8mb4_general_ci'
}

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