完成評論功能

一、定義評論的視圖函數
     @app.route('/comment/',methods=['POST'])
      def comment()：
      讀取前端頁面數據，保存到數據庫中

app.route('/comment/',methods=['POST'])

@loginFirst

def comment():

    comment = request.form.get('new_comment')

    ques_id = request.form.get('question_id')

    auth_id = User.query.filter(User.username == session.get('user')).first().id

    comm = Comment(author_id=auth_id, question_id=ques_id, detail=comment)

    db.session.add(comm)

    db.session.commit()

    return redirect(url_for('detail',question_id=ques_id))

 

二、用<input type="hidden" 方法獲取前端的"question_id" 

<input type="hidden" name="question_id" value="{{ ques.id }}">

 

三、顯示評論次數

四、要求評論前登陸

五、嘗試實現詳情頁面下的評論列表顯示

class Comment(db.Model):

    __tablename__ = 'comment'

    id = db.Column(db.Integer, primary_key=True, autoincrement=True)

    author_id = db.Column(db.Integer, db.ForeignKey('user.id'))

    question_id = db.Column(db.Integer, db.ForeignKey('question.id'))

    creat_time = db.Column(db.DateTime, default=datetime.now)

    detail = db.Column(db.Text, nullable=False)

    question = db.relationship('Question', backref=db.backref('comments'))

    author = db.relationship('User', backref=db.backref('comments'))