【发布时间】:2015-12-11 19:48:47
【问题描述】:
关于它的问题很多,但我找不到答案。 我已经:
group.rb
class Group < ActiveRecord::Base
has_many :descriptions, :as => :describable
accepts_nested_attributes_for :descriptions
end
description.rb
class Description < ActiveRecord::Base
belongs_to :describable, :polymorphic => true
end
groups_controller.rb
def update
@group = Group.find(params[:id])
if @group.update_attributes(group_params)
flash[:success] = "yes"
redirect_to groups_path
else
render 'edit'
end
end
private
def group_params
params.require(:group).permit(:owner_id, :domain, descriptions_attributes: [:id, :content])
end
edit.html.erb
<%= simple_form_for @group do |f| %>
<% if @group[:domain].blank? %>
<%= f.input :domain %>
<% else %>
<%= f.input :domain, readonly: true %>
<% end %>
<%= f.input :owner_id, readonly: true %>
<%= f.simple_fields_for :descriptions do |description| %>
<%= description.input :content %>
<% end %>
<%= f.button :submit %>
<% end %>
在控制台中我有Unpermitted parameter: description 并且没有创建嵌套属性。最后我该怎么做才能保存它?
【问题讨论】:
标签: ruby-on-rails simple-form nested-attributes polymorphic-associations