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我在做什么错误?我得到一个异常抛出。如何在烧瓶中制作自定义过滤器admin
例外:无效字段:不包含任何列。
我实际上想过滤来自三个不同栏的结果,其中包含房间的成本。如果任何房间满足三个房间的特定条件,那么它应该出现在列表中。这就是为什么我想制作一个自定义过滤器。
请帮帮我。提前致谢。从flask.ext.admin.model进口 :
from flask.ext.admin.babel import lazy_gettext
from flask.ext.admin.model import filters
class MyBaseFilter(filters.BaseFilter):
"""
Base SQLAlchemy filter.
"""
def __init__(self, column, name, options=None, data_type=None):
"""
Constructor.
:param column:
Model field
:param name:
Display name
:param options:
Fixed set of options
:param data_type:
Client data type
"""
super(MyBaseFilter, self).__init__(name, options, data_type)
self.column = column
class Views():
class HotelAdmin(ModelView):
class FilterCost(MyBaseFilter):
def apply(self, query, value):
return query.filter(self.column > value)
def operation(self):
return lazy_gettext('Cost')
column_labels = {'hotel_name':'Hotel Details'}
column_list = ('hotel_name','website')
column_searchable_list = ('city',)
column_filters = (FilterCost(Table.Hotel.deluxe_room,'Cost'),'state')