如何使用活动管理过滤器部分中的 HABTM 字段？
我使用的是 Active Admin 0.3.2，我的数据库架构包括一些 has_and_belongs_to_many 关系。我可以很好地创建和显示记录，但尝试将它们包含在过滤器部分中会导致事情陷入停滞。
models\pin.rb:
class Pin < ActiveRecord::Base
has_and_belongs_to_many :pin_types, :join_table => :pin_types_pins
end
models\pin_type.rb
class PinType < ActiveRecord::Base
has_and_belongs_to_many :pins, :join_table => :pin_types_pins
end
admin\pins.rb
ActiveAdmin.register Pin do
filter :pin_types
...other filters
end
结果是出现其他过滤器，但根本没有 Pin Types 部分。
如果 admin\pins.rb 是这样的：
ActiveAdmin.register Pin do
filter :pin_types, :as => :check_boxes
...other filters
end
我得到以下信息：
undefined method `pin_type_ids_in' for #<MetaSearch::Searches::Pin:0xcd2c108>
我想做的是允许用户从一组可能的选择中选择一个或多个 Pin 类型，并根据是否应用任何选定的选项进行过滤。
这可能吗？
I'm using Active Admin 0.3.2, and my database schema includes a few has_and_belongs_to_many relationships. I can create and display records just fine, but attempting to include them in the filter section causes things to grind to a halt.
models\pin.rb:
class Pin < ActiveRecord::Base
has_and_belongs_to_many :pin_types, :join_table => :pin_types_pins
end
models\pin_type.rb
class PinType < ActiveRecord::Base
has_and_belongs_to_many :pins, :join_table => :pin_types_pins
end
admin\pins.rb
ActiveAdmin.register Pin do
filter :pin_types
...other filters
end
The result is that the other filters appear, but there's no section at all for Pin Types.
If admin\pins.rb is this instead:
ActiveAdmin.register Pin do
filter :pin_types, :as => :check_boxes
...other filters
end
I get the following:
undefined method `pin_type_ids_in' for #<MetaSearch::Searches::Pin:0xcd2c108>
What I'd like to do is allow the user to select one or many Pin Types from a set of possible choices and filter depending on whether any of the selected options apply.
Is this possible?
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评论（2）
像这样使用过滤器：
过滤器：模型属性
，所以如果您在 User_events 上并且想要搜索用户名，您可以这样做
过滤器：用户全名
use the filter like this:
filter :model_attribute
, so if you are on the User_events and wanted to search on the user name , u'd do this
filter :user_fullName
请注意，ccrlson 的答案有效，但仅适用于
:check_boxes。这是不幸的，因为meta_search（用于支持过滤器搜索）的默认行为不会过滤掉重复项...并且当您使用复选框时，您可能不希望看到结果出现两次，因为它匹配2 个选定的选项。
当我尝试使用
as: :select时，遇到了未定义的方法错误，但不得不硬着头皮选择复选框。Note that ccarlson's answer works, but only with
:check_boxes.This is unfortunate, because the default behavior of meta_search (used to power the filter searching) does not filter out duplicates... and when you're using checkboxes, you probably don't want to see a result come up twice because it matches 2 selected options.
I ran into the undefined method error here when attempting to use
as: :select, but had to bite the bullet on checkboxes.