Flask-Admin 默认过滤器 [英] Flask-Admin default filters

问题描述

我想在我的 Flask-Admin 模型列表视图中只显示支付的订单.

I would like to display only paid orders in my Flask-Admin model list view.

这是models.py:

Here is models.py:

class Order(db.Model):
   id = db.Column(db.Integer, primary_key=True)
   amount = db.Column(db.Integer)
   description = db.Column(db.String)
   paid = db.Column(db.Boolean, default=False)

这是 Flask-Admin 的 ModelView:

Here is ModelView for Flask-Admin:

class OrderView(ModelView):
    column_filters = ("paid")


admin.add_view(OrderView(Order, db.session))

过滤器工作正常，但我想将此过滤器设为默认值.或者更好的是，不要使用过滤器，只显示 Order.query.filter(Order.paid==True) 查询输出的订单.

Filters work fine, but I would like to make this filter default. Or better yet, do not use filters, and only show orders that are output of Order.query.filter(Order.paid==True) query.

是否可以使用 Flask-Admin?

Is it possible to do with Flask-Admin?

推荐答案

我们通过覆盖 ModelView 在我们的应用程序中做到这一点.

We do this in our app by overriding ModelView.

https://github.com/mrjoes/flask-admin/blob/master/flask_admin/contrib/sqla/view.py#L654

我仔细查看了 Flask-Admin 的源代码，自从我们上次编辑此代码以来，它们使 API 更易于使用，因为看起来您可以这样做:

I looked through the source code a bit for Flask-Admin, and they've made the API easier to use since we last edited this code because it looks like you can just do:

from flask.ext.admin.contrib.sqla.view import ModelView, func

class PaidOrderView(ModelVew):
    def get_query(self):
      return self.session.query(self.model).filter(self.model.paid==True)

    def get_count_query(self):
      return self.session.query(func.count('*')).filter(self.model.paid==True)

(我们覆盖了几乎没有那么好的 get_list().)

(We were overriding get_list() which is not nearly as great.)

然后你可以像这样使用它:

You can then use it like:

admin.add_view(PaidOrderView(Order, db.session))

如果这对您不起作用，请告诉我，我可以再看看.

Let me know if that doesn't work for you and I can take another look.

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