Flask-Admin多对多字段显示 [英] Flask-Admin Many-to-Many field display
问题描述
这是对的,因为它是我的模型类的一个实例。但是,我怎样才能在这里显示来自该模型的单个字段的值?我真的不知道该怎么做。管理界面中是否有这种表单域的参数?我什么都找不到
感谢您的帮助!
您需要在模型上定义 __ unicode __
方法。在一个能够遵循我自己的命名约定的应用程序中,我可以将以下内容放在基类中,以适用于所有模型: class MyModel(db.Model):
基类提供了__repr__,以便每个模型都有短的类型。
__abstract__ = True
def __unicode __(self):
#attrs = db.class_mapper(self .__ class __)。column_attrs
attrs = db.class_mapper(self .__ class __)。attrs#show also relationships
if 'name'attrs:
return self.name
elif'code'attrs:
return self.code
else:
return<%s( %S)>中(self.__ class __.__ name__,
','.join('%s =%r'%(k.key,getattr(self,k.key))
for sort(attrs )
)
)
I develop an application using Flask. I use Postgres db (psycop2), SQLAlchemy and Flask-Admin for admin interface. And I got a problem and can't find a solution. I have many-to-many relationship between articles and tags tables it's clear. In the Flask-Admin interface when I try to add a tag to articel (or vise versa) it works fine. But it displays awfully and it impossible to choose correct tag because it displays like an object:
And that is right because it is an instance of my model class. But how can I display here only a value of single field from that model? I really don't know how to do that. Is there any parameter for such kind of "form field" in the admin interface? I can find nothing. I hope that sombody know the solution.
Thanks for your help!
You need to define __unicode__
method on your models. In an application where I am able to follow my own naming conventions, I might put the following in the base class for all my models and override where appropriate:
class MyModel(db.Model):
""" Base class provides the __repr__ so that each model has short type. """
__abstract__ = True
def __unicode__(self):
# attrs = db.class_mapper(self.__class__).column_attrs
attrs = db.class_mapper(self.__class__).attrs # show also relationships
if 'name' in attrs:
return self.name
elif 'code' in attrs:
return self.code
else:
return "<%s(%s)>" % (self.__class__.__name__,
', '.join('%s=%r' % (k.key, getattr(self, k.key))
for k in sorted(attrs)
)
)
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