blocks|key|945522|text|可以通过外键关系轻松地将字段包含在column_list值-+文档中。考虑这两个简化模型，请注意Address模型中的Address反向引用：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|945523|class+Company(db.Model):
++++__tablename__+=+'companies'

++++id+=+db.Column(db.Integer,+primary_key=True)
++++name+=+db.Column(db.Unicode(255),+nullable=False,+unique=True,+index=True)
++++website+=+db.Column(db.Unicode(255),+nullable=True)
++++notes+=+db.Column(db.UnicodeText())

++++@hybrid_property
++++def+address_count(self):
++++++++return+len(self.addresses)

++++@address_count.expression
++++def+address_count(cls):
++++++++return+select([func.count(Address.id)]).where(Address.company_id+==+cls.id).label("address_count")


++++def+__str__(self):
++++++++return+self.name


class+Address(db.Model):
++++__tablename__+=+'addresses'

++++id+=+db.Column(db.Integer,+primary_key=True)
++++address1+=+db.Column(db.Unicode(255),+nullable=False)
++++town+=+db.Column(db.Unicode(255),+index=True,+nullable=False)
++++county+=+db.Column(db.Unicode(255))
++++country+=+db.Column(db.Unicode(255))
++++post_code+=+db.Column(db.Unicode(10))

++++company_id+=+db.Column(db.Integer,+db.ForeignKey('companies.id'),+index=True)
++++company+=+db.relationship(Company,+backref=db.backref('addresses',+uselist=True,+lazy='select',+cascade='delete-orphan,all'))


++++def+__str__(self):
++++++++return+',+'.join(filter(None,+[self.address1,+self.town,+self.county,+self.post_code,+self.country]))|code-block|syntax|javascript|945524|在Address视图中，您可以使用虚线符号访问“父”公司。例如：|945525|class+AddressView(ModelAdmin):

++++column_list+=+(
++++++++'company.name',
++++++++'company.website',
++++++++'address1',
++++++++'address2'
++++++++)|945526|entityMap|0|LINK|mutability|MUTABLE|url|https://flask-admin.readthedocs.io/en/v1.0.6/api/mod_model/#flask.ext.admin.model.BaseModelView.column_list^0|H|B|1C|7|1N|7|V|2|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|H|7|16|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|17|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

You can easily include fields via a foreign key relationship by including them in <code>column_list</code> value - <a href="https://flask-admin.readthedocs.io/en/v1.0.6/api/mod_model/#flask.ext.admin.model.BaseModelView.column_list" rel="nofollow noreferrer">documentation</a>. Consider the two simplified models, note the <code>company</code> back reference in the <code>Address</code> model:
<pre><code>class Company(db.Model):
 __tablename__ = 'companies'

 id = db.Column(db.Integer, primary_key=True)
 name = db.Column(db.Unicode(255), nullable=False, unique=True, index=True)
 website = db.Column(db.Unicode(255), nullable=True)
 notes = db.Column(db.UnicodeText())

 @hybrid_property
 def address_count(self):
 return len(self.addresses)

 @address_count.expression
 def address_count(cls):
 return select([func.count(Address.id)]).where(Address.company_id == cls.id).label(&quot;address_count&quot;)


 def __str__(self):
 return self.name


class Address(db.Model):
 __tablename__ = 'addresses'

 id = db.Column(db.Integer, primary_key=True)
 address1 = db.Column(db.Unicode(255), nullable=False)
 town = db.Column(db.Unicode(255), index=True, nullable=False)
 county = db.Column(db.Unicode(255))
 country = db.Column(db.Unicode(255))
 post_code = db.Column(db.Unicode(10))

 company_id = db.Column(db.Integer, db.ForeignKey('companies.id'), index=True)
 company = db.relationship(Company, backref=db.backref('addresses', uselist=True, lazy='select', cascade='delete-orphan,all'))


 def __str__(self):
 return ', '.join(filter(None, [self.address1, self.town, self.county, self.post_code, self.country]))
</code></pre>
In the Address view you can access a &quot;parent&quot; company using dotted notation. For example:
<pre><code>class AddressView(ModelAdmin):

 column_list = (
 'company.name',
 'company.website',
 'address1',
 'address2'
 )
</code></pre>

I have a Flask app using Flask-SQLAlchemy with some simple relational data mapping, e.g. between Orders and OrderItems belonging to those orders.
In my Flask-Admin backend I would like to show some of the order attributes in the list of OrderItems — as opposed to having the entire order object. E.g. make the &quot;Order.email&quot; listed (can be read-only) in the OrderItems' rows.
I've looked into the <code>inline_models</code> attribute of the ModelView, but this seems to be more feared towards actually editing the relational object — I just want to display (and sort/search by) some value of the &quot;parent&quot;.
Is there a way to achieve this?

Displaying joined fields in Flask-Admin ModelView

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我有一个使用的Flask应用程序，带有一些简单的关系数据映射，例如订单和属于这些订单的OrderItems之间的关系数据映射。在我的“管理”后端中，我想在OrderItems列表中显示一些订单属性，而不是拥有整个order对象。例如，在Order.email的行中列出“OrderItems”(可以是只读的)。我已经研究...

在ModelView中显示连接字段-腾讯云开发者社区-腾讯云

问在ModelView中显示连接字段
EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问在ModelView中显示连接字段EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问在ModelView中显示连接字段
EN