具有多对多关系模型的Flask-Admin视图 [英] Flask-Admin view with many to many relationship model

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本文介绍了具有多对多关系模型的Flask-Admin视图的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我具有用户和用户角色的基本flask-admin设置

I have this basic flask-admin set-up with users and user roles

class Role(db.Model, RoleMixin):
    id = db.Column(db.Integer(), primary_key=True)
    name = db.Column(db.String(80), unique=True)
    description = db.Column(db.String(255))

class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(255), unique=True)
    password = db.Column(db.String(255))
    active = db.Column(db.Boolean())
    confirmed_at = db.Column(db.DateTime())
    roles = db.relationship('Role', secondary="roles_users",
                            backref=db.backref('users', lazy='dynamic'))
class RolesUsers(db.Model):
    __tablename__="roles_users"
    id = db.Column(db.Integer(), primary_key=True)
    user_id = db.Column(db.Integer(), db.ForeignKey('user.id', ondelete='CASCADE'))
    role_id = db.Column(db.Integer(), db.ForeignKey('role.id', ondelete='CASCADE'))

我想显示将显示特定用户角色的用户视图.有了一对多的关系,我会做这样的事情

I want to display user view that will show roles specific user has. With one to many relationship I would do somethin like this

class UserView(ModelView):
    column_hide_backrefs = False

class Role(db.Model, RoleMixin):
    ...
    def __str__(self):
        return self.name

我如何通过多对多关系来做到这一点

How would I do this with many to many relationship

推荐答案

所以事实证明,我只需要像这样向UserView添加column_list属性

So it turns out that I only needed to add column_list property to UserView like this

class UserView(ModelView):
    column_hide_backrefs = False
    column_list = ('email', 'active', 'roles')

其余的由flask-admin处理

the rest is handled by flask-admin

这篇关于具有多对多关系模型的Flask-Admin视图的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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