from exts import db
from datetime import datetime



class EmailCaptchaModel(db.Model):
    __tablename__ = "email_captcha"
    id = db.Column(db.Integer,primary_key=True,autoincrement=True)
    email = db.Column(db.String(100),unique=True)
    captcha = db.Column(db.String(10))
    create_time = db.Column(db.DateTime,default=datetime.now)


class UserModel(db.Model):
    __tablename__ = "user"
    id = db.Column(db.Integer,primary_key=True,autoincrement=True)
    username = db.Column(db.String(200),unique=True)
    email = db.Column(db.String(100),unique=True)
    password = db.Column(db.String(200))
    join_time = db.Column(db.DateTime,default=datetime.now)


# 问题模块
class QuestionModel(db.Model):
    __tablename__ = "question"
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    title = db.Column(db.String(200))
    content = db.Column(db.Text)
    create_time = db.Column(db.DateTime,default=datetime.now)
    author_id = db.Column(db.Integer,db.ForeignKey("user.id"))

    author = db.relationship("UserModel",backref="questions")


# 问答模型
class AnswerModel(db.Model):
    __tablename__ = "answer"
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    content = db.Column(db.Text)
    create_time = db.Column(db.DateTime,default=datetime.now)
    question_id = db.Column(db.Integer,db.ForeignKey("question.id"))
    author_id = db.Column(db.Integer, db.ForeignKey("user.id"))

    question = db.relationship("QuestionModel",backref=db.backref("answers",order_by=create_time.desc()))
    author = db.relationship("UserModel",backref="answers")