在连接模型中设置属性
我有以下用户模型：
class User < ActiveRecord::Base
has_many :competences
has_many :skills, :through => :competences
accepts_nested_attributes_for :skills
end
和以下技能模型：
class Skill < ActiveRecord::Base
has_many :competences
has_many :users, :through => :competences
end
能力模型有一个“类型”属性，它是连接模型。在嵌套表单中，如何在保存提交的技能时设置“类型”属性？ 这是嵌套形式：
<% f.fields_for :skills do |s| %>
<%= s.text_field :name %>
<% end %>
I have the following User model:
class User < ActiveRecord::Base
has_many :competences
has_many :skills, :through => :competences
accepts_nested_attributes_for :skills
end
and the following Skill model:
class Skill < ActiveRecord::Base
has_many :competences
has_many :users, :through => :competences
end
The Competence model has a 'type' attribute and it is the join model. Inside the nested form, How can I set the 'type' attribute while I save the submitted skills?
Here is the nested form:
<% f.fields_for :skills do |s| %>
<%= s.text_field :name %>
<% end %>
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您需要专门创建 Competence 对象 - 您不能隐式创建它（如 HABTM）并为其设置属性。
您的用户模型应该接受能力的嵌套属性，它应该接受技能的嵌套属性。像这样的事情应该会让你走上正轨：
You need to create the Competence object specifically -- you can't implicitly create it (a la HABTM) and also set attributes on it.
Your User model should accept nested attributes for Competences, which should accept nested attributes for Skills. Something like this should put you on the right track: