【发布时间】:2012-12-31 11:31:08
【问题描述】:
我有一个多态的有效评论系统,因此可以将 cmets 添加到 用户 和 帖子。但是,我无法弄清楚如何将登录用户(评论者)附加到评论中。
cmets_controller.rb:
class CommentsController < ApplicationController
before_filter :authenticate_user!, :only => [:create, :destroy]
def index
@commentable = find_commentable
@comments = @commentable.comments
end
def new
@commentable = find_commentable
end
def create
@commentable = find_commentable
@comment = @commentable.comments.build(params[:comment])
if @comment.save
flash[:notice] = "Successfully created comment."
redirect_to get_master
else
render :action => 'new'
end
end
def destroy
@comment = Comment.find(params[:id])
@comment.destroy
respond_to do |format|
format.html { redirect_to comments_url }
format.json { head :no_content }
end
end
protected
def find_commentable
params.each do |name, value|
if name =~ /(.+)_id$/
return $1.classify.constantize.find(value)
end
end
nil
end
def get_master
@parent = @comment.commentable
if @parent.respond_to?('commentable_type')
@comment = @parent
get_master
else
return @parent
end
end
end
【问题讨论】:
标签: ruby-on-rails ruby-on-rails-3 comments