投稿と投稿の 2 つのモデルに属するコメント モデルがあります。
class Comment < ActiveRecord::Base
attr_accessible :content, :show
belongs_to :commentable, :polymorphic => true
end
class Submission < ActiveRecord::Base
has_many :comments, :as => :commentable, :dependent => :destroy
end
投稿はネストされたルートであり、投稿はそうではありません。
私のコメントコントローラーで:
def create
@commentable = find_commentable
@comment = @commentable.comments.build(params[:comment])
@comment.user = current_user
if @comment.save
#CommentMailer.comment_email(@user, @comment, @commentable).deliver
flash[:notice] = "Successfully created comment."
if @commentable == @submission
redirect_to [@contest, @commentable]
else
redirect_to [@commentable]
end
else
render :action => 'new'
end
end
find_contest
def find_contest
@contest = Contest.find(params[:contest_id])
end
find_commentable:
def find_commentable
params.each do |name, value|
if name =~ /(.+)_id$/
return $1.classify.constantize.find(value)
end
end
nil
end
@commentable 経由での投稿へのリダイレクトは正常に機能しますが、投稿へのリダイレクトではコンテストが見つかりません。
Started POST "/submissions/36/comments" for 127.0.0.1 at 2012-11-30 18:34:41 -0800
Processing by CommentsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"R62NH5/EE34FPapEqy7mfpa0wKz18GtSdhH8MGYq2Ec=", "comment"=>{"content"=>"test", "show"=>"true"}, "commit"=>"Create Comment", "submission_id"=>"36"}
User Load (0.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = 2 ORDER BY users.created_at DESC LIMIT 1
Submission Load (0.3ms) SELECT "submissions".* FROM "submissions" WHERE "submissions"."id" = $1 ORDER BY submissions.created_at DESC LIMIT 1 [["id", "36"]]
Completed 500 Internal Server Error in 116ms
ActiveRecord::RecordNotFound (Couldn't find Contest without an ID):
app/controllers/comments_controller.rb:19:in `create'
提出ルートの変更:
submissions GET /submissions(.:format) submissions#index
POST /submissions(.:format) submissions#create
new_submission GET /submissions/new(.:format) submissions#new
edit_submission GET /submissions/:id/edit(.:format) submissions#edit
submission GET /submissions/:id(.:format) submissions#show
PUT /submissions/:id(.:format) submissions#update
DELETE /submissions/:id(.:format) submissions#destroy
提出フォーム:
<%= simple_form_for @submission, :html => { :multipart => true } do |f| %>
<div class="span7 offset2 submission">
<fieldset class="well pleft80 edit">
<%= f.hidden_field :contest_id , :value => params[:contest_id] %>
<%= f.input :title %>
<%= f.input :description %>
<%= f.input :comment_show, :as => :hidden, :input_html => { :value => true } %>
</fieldset>
<fieldset class="well pleft80 noborder">
<%= f.fields_for :image do |img_field| %>
<h3>Upload Photo<%= img_field.file_field :source %></h3>
<% end %>
</fieldset>
<div class ="form-actions pleft80">
<%= f.submit nil, :class => 'btn btn-primary btn-large' %>
</div>
</div>
<% end %>