一百三十六：CMS系统之发布帖子后台逻辑

模型

class PostModel(db.Model):
    __tablename__ = 'post'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    title = db.Column(db.String(200), nullable=False)
    content = db.Column(db.Text, nullable=False)
    create_time = db.Column(db.DateTime, default=datetime.now)
    board_id = db.Column(db.Integer, db.ForeignKey('board.id'))
    board = db.relationship('BoardModel', backref='posts')

manager.py中导入模型

映射到数据库

python manager.py db migrate
python manager.py db upgrade

登录验证装饰器

from flask import session, redirect, url_for, g
from functools import wraps
import config


def login_required(func):
    """ 登录验证 """

    @wraps(func)
    def inner(*args, **kwargs):
        if config.FRONT_USER_ID in session:
            return func(*args, **kwargs)
        else:
            return redirect(url_for('front.signin'))

    return inner

form

class AddPostForm(BaseForm):
    title = StringField(validators=[InputRequired(message='请输入标题')])
    content = StringField(validators=[InputRequired(message='请输入内容')])
    board_id = IntegerField(validators=[InputRequired(message='请输入板块id')])

视图

@bp.route('/apost/', methods=['GET', 'POST'])
@login_required
def apost():
    """ 添加帖子 """
    form = AddPostForm(request.form)
    if request.method == 'POST':
        if form.validate():
            title = form.title.data
            content = form.content.data
            board_id = form.board_id.data
            board = BoardModel.query.get(board_id)
            if not board:
                return restful.params_error(message='没有这个板块')
            post = PostModel(title=title, content=content)
            post.board = board
            db.session.add(post)
            db.session.commit()
            return restful.success()
        else:
            return restful.params_error(form.get_error())
    boards = BoardModel.query.all()
    return render_template('front/front_apost.html', boards=boards)

模板